(1) Nonlinear system


 Coral Payne
 2 years ago
 Views:
Transcription
1 Liner vs. nonliner systems in impednce mesurements I INTRODUCTION Electrochemicl Impednce Spectroscopy (EIS) is n interesting tool devoted to the study of liner systems. However, electrochemicl systems re often nonliner. Before explining the different wys to del with this issue, we will point out the min differences etween liner nd nonliner systems. These differences of ehvior re shown in Tle I. The impednce mesurement ws performed using the potentiosttic mode. The potentil is defined y: ( ) sin ( ) E t = E + V ft () WE where EWE is the sttionry potentil for the impednce mesurement, V is the potentil mplitude of the sine signl, f is the frequency, nd t is the time. Tle I: Differences etween liner nd nonliner systems. Stedystte I vs. EWE curve Impednce vs. EWE Impednce vs. V Liner system Stright line I = f(ewe) Invrint with EWE Invrint with V for ll V vlues Nonliner system I = f(ewe) Vrint with EWE: Z(EWE) Invrint with V only for low V vlues Three test circuits hve een designed in order to highlight the differences in ehvior etween liner nd nonliner systems. II TEST BOX3 The experiments descried on this pper were performed with test ox specificlly designed for the user to lern how to chieve impednce mesurements on liner nd nonliner electrochemicl systems. There re three different electricl circuits inside the test ox simulting rel electrochemicl systems. With Test Box3, it is possile to study generl electrochemistry protocols like Cyclic Voltmmetry or corrosion protocols such s Liner Polriztion nd Generlized Corrosion. III TEST CIRCUIT # Figure shows the electricl circuit of the test circuit #, the corresponding stedystte curve (I vs. EWE), nd the Nyquist digrm of the impednce mesured t points nd of the stedystte curve. The impednce digrms do not depend on the stedystte potentil EWE or on the mplitude V. The Nyquist impednce digrm displys two semicircles. Only one impednce mesurement is needed to chrcterize the equivlent test circuit #. It cn e good exercise to determine the different frequencies chrcterizing circuit test # nd compre them with the experimentl vlues shown on the impednce digrm of Fig. 3. Impednce is mesured t stedystte points nd (Fig., Fig. 3). The rrow indictes BioLogic Science Instruments, Rue de Vucnson, 387 SeyssinetPriset, FRANCE Tel: Fx:
2 incresing frequencies. R = 5, R = k, R = 3.56 k, C = nf, C =.3 µf. Figure : Test circuit #. CV_circuit.mpr..8.6 PEIS_circuit.mpr # PEIS_circuit_zfit.mpp Figure : I vs. EWE stedystte curve..7 khz PEIS_circuit.mpr # Figure 3: Nyquist digrm for the impednce. Vlues of the vrious prmeters of circuit # re otined using ZFit, ville in ECL nd ECL Express softwre. Result of the fit is given Figure.. PEIS_V_circuit.mpr 3. Hz Figure : ZFit result on circuit # of Test Box3. To verify these results with test circuit #, you cn perform the following experiments: ) Plot the stedystte I vs. E WE curve using cyclic voltmmetry technique (in ECL softwre, lod the CV_circuit.mps file, ccept, nd run the experiment). ) Select the PEIS technique. Apply constnt potentil E WE = V nd perform n impednce mesurement from f i = khz to f f = Hz frequency with low mplitude V = mv (it is lso possile to lod the PEIS_circuit.mps file). 3) In the PEIS technique, pply constnt potentil E WE =. V nd perform n impednce mesurement from f i = khz to f f = Hz frequency with low mplitude V = mv (it is lso possile to lod the PEIS_V_circuit.mps file). ) In the PEIS technique, pply constnt potentil E WE =. V nd perform n impednce mesurement from f i = khz to f f = Hz frequency with high mplitude V = mv (it is BioLogic Science Instruments, Rue de Vucnson, 387 SeyssinetPriset, FRANCE Tel: Fx:
3 Im(Z)/Ohm lso possile to lod the PEIS_mplmV_circuit.mps file). PEIS_5V_circuit.mpr # PEIS_V_circuit.mpr 5) Overly the three impednce mesurement curves in the Nyquist plot mode. As test circuit # is liner system, the three impednce digrms should e identicl khz 86.3 Hz IV TEST CIRCUIT # Test circuit # is mde minly of two semiconductor diodes. This is model for exponentil nonlinerity. Test circuit # results from circuit studied in []. The I vs. EWE stedystte curve is not stright line for test circuit #. Therefore the test circuit # is nonliner circuit. The impednce of this circuit depends on the stedystte vlue of the working electrode potentil EWE nd on the mplitude V. The Nyquist digrm of the impednce mesurement performed on test circuit # is semicircle whose dimeter chnges long with the electrode potentil EWE. (Fig. 6). The impednce of nonliner system is potentil dependnt. CV_circuit.mpr Re(Z)/Ohm Figure 6: Nyquist digrm for the impednce mesured t point nd. Arrows indicte incresing frequencies. Figure 8 shows the impednce chnge versus the mplitude V for given Ewe vlue. We cn clerly see tht the semicircle dimeter decreses when V vlues increse. The impednce does not depend on the mplitude of the excittion signl for low vlues of mplitude (Fig. 8). In tht cse, this system s ehvior is similr to tht of liner system. Therefore, one impednce mesurement is not sufficient to chrcterize nonliner system. It cn e good exercise to try nd find n equivlent electricl circuit for test circuit #. The user cn lso determine the electricl components vlues when its ehvior cn e compred to one of liner system..5.5 PEIS_5V_xxmV_circuit.mpr.6 Hz.6 Hz Figure 5: I vs. EWE stedystte curve..3.6 Hz Figure 7: Nyquist impednce digrm mesured for different vlues of potentil (EWE =.5 V). BioLogic Science Instruments, Rue de Vucnson, 387 SeyssinetPriset, FRANCE Tel: Fx:
4 RLF (kohms) log(v/mv) Figure 8: digrm displying the inphse impednce (evluted for limiting vlue in low frequencies) versus log(v). It is possile to verify these results with test circuit #: ) Plot the stedystte I vs. EWE curve using cyclic voltmmetry technique (in ECL softwre, lod the CV_circuit.mps file, ccept, nd run the experiment). ) Select PEIS technique. Apply constnt potentil EWE =. V nd perform n impednce mesurement from frequency fi = khz to ff = Hz with n mplitude V = mv (it is lso possile to lod the PEIS_V_circuit.mps file). 3) In the PEIS technique, pply constnt potentil EWE =.5 V nd perform n impednce mesurement from frequency fi = khz to ff = Hz with n mplitude V = mv (it is lso possile to lod the PEIS_5V_circuit.mps file). ) In the PEIS technique, pply constnt potentil EWE =.5 V nd perform severl impednce mesurements from frequency fi = khz to ff = Hz with n mplitude V/mV=.5, 5,, 5, 5, (it is lso possile to lod the PEIS_5V_xxmV_circuit.mps files for the different vlues of Vpp)..5 The shpe of the impednce digrm evolves long with the electrode potentil EWE s it cn e oserved in Figs. 9, nd. Let us consider the stedystte I vs. EWE curve showing pek (s in the cse of metl pssivtion, Fig. 9). For low frequencies, the inphse impednce is negtive. Therefore, prt of the impednce digrm is on the left side of the complex plot, i.e. Re(Z(w)) < CV_circuit3.mpr Figure 9: I vs. EWE stedystte curve. Figure : Nyquist digrm for the impednce which hs een mesured t point. The rrow indictes incresing frequencies khz PEIS_3V_circuit3.mpr PEIS_8V_circuit3.mpr 66.5 Hz 66.5 Hz 3.9 khz V TEST CIRCUIT #3 Test circuit #3 minly consists of two trnsistors. It is model for metl pssivtion which hs een extrcted from []. This circuit hs lso een studied in [].. Figure : Nyquist digrm for the impednce which hs een mesured t point. The rrow indictes incresing frequencies...3 BioLogic Science Instruments, Rue de Vucnson, 387 SeyssinetPriset, FRANCE Tel: Fx:
5 It is possile to verify these results with test circuit #3 y performing the following experiments: ) Plot the stedystte I vs. EWE curve using cyclic voltmmetry technique (in ECL softwre, lod the CV_circuit3.mps file, ccept, nd run the experiment). ) To plot digrm on Fig. : select the PEIS technique nd pply constnt potentil EWE =.8 V nd perform n impednce mesurement from frequency fi = khz to ff = Hz with n mplitude V = mv (it is lso possile to lod the PEIS_ 8V_circuit3.mps file). 3) To plot the digrm (Fig. ): in the PEIS technique pply constnt potentil EWE =.3 V nd perform n impednce mesurement from frequency fi = khz to ff = Hz with n mplitude V = mv (it is lso possile to lod the PEIS_3V_circuit3.mps file). VI CONCLUSION Liner systems re simpler to study. Only one impednce mesurement is sufficient to chrcterize their ehvior. On the other hnd, it ecomes quite complicted when deling with nonliner systems. Severl impednce mesurements re necessry to chrcterize their ehvior. In order to study nonliner system with impednce mesurement y ssimilting its ehvior with liner system ehvior, it is necessry to use low modultion mplitude, V. Dt files cn e found in : C:\Users\xxx\Documents\EC L\Dt\Smples\Corrosion\Appliction Note 9 REFERENCES ) J.P. Dird, B. Le Gorrec, nd C. Montell, J. Electronl. Chem., 3 (997) 7. ) K. Mhdevn, nd Y. Gopl, Electronic Engineering, (973). 3) J.P. Dird, nd B. Le Gorrec, J. Electronl. Chem. 3 (979) 363. ) J.P. Dird, P. Lndud, B. Le Gorrec, nd C. Montell, Electronl. Chem., (3). Exercise nswers:  circuit test #: the chrcteristic frequency, i.e. the frequency t the top of the semicircle of n RC circuit, is given y fc = RC The two chrcteristic frequencies for circuit test # re: f f = 6 khz = Hz c 3 8 c 3 6 These vlues re close to the frequency vlues given t the top of the semicircles present on Fig Circuit test #: the impednce digrm represents semicircle. The equivlent electricl circuit cn e ssimilted to n RC circuit. It is possile to determine the circuit resistnce vlues on the Im(Z) vs. Re(Z) plot. They correspond to the inphse impednce for the lowest frequencies (Im(Z) ). R vlue vries with Ewe. For point of the stedystte curve, we find: R = Ω nd for point : R = 7 Ω. With the resistnce vlues determined ove, the user cn determine the cpcitnce using the following eqution: C = π fr c where fc is the frequency t the top of the semicircle. The results should e similr for R nd R. We find C~9 nf. Revised in 7/8 BioLogic Science Instruments, Rue de Vucnson, 387 SeyssinetPriset, FRANCE Tel: Fx:
Exercise 11. The Sine Wave EXERCISE OBJECTIVE DISCUSSION OUTLINE. Relationship between a rotating phasor and a sine wave DISCUSSION
Exercise 11 The Sine Wve EXERCISE OBJECTIVE When you hve completed this exercise, you will be fmilir with the notion of sine wve nd how it cn be expressed s phsor rotting round the center of circle. You
More information& Y Connected resistors, Light emitting diode.
& Y Connected resistors, Light emitting diode. Experiment # 02 Ojectives: To get some hndson experience with the physicl instruments. To investigte the equivlent resistors, nd Y connected resistors, nd
More informationSynchronous Machine Parameter Measurement
Synchronous Mchine Prmeter Mesurement 1 Synchronous Mchine Prmeter Mesurement Introduction Wound field synchronous mchines re mostly used for power genertion but lso re well suited for motor pplictions
More information(CATALYST GROUP) B"sic Electric"l Engineering
(CATALYST GROUP) B"sic Electric"l Engineering 1. Kirchhoff s current l"w st"tes th"t (") net current flow "t the junction is positive (b) Hebr"ic sum of the currents meeting "t the junction is zero (c)
More informationCHAPTER 3 AMPLIFIER DESIGN TECHNIQUES
CHAPTER 3 AMPLIFIER DEIGN TECHNIQUE 3.0 Introduction olidstte microwve mplifiers ply n importnt role in communiction where it hs different pplictions, including low noise, high gin, nd high power mplifiers.
More informationSynchronous Machine Parameter Measurement
Synchronous Mchine Prmeter Mesurement 1 Synchronous Mchine Prmeter Mesurement Introduction Wound field synchronous mchines re mostly used for power genertion but lso re well suited for motor pplictions
More informationUniversity of North CarolinaCharlotte Department of Electrical and Computer Engineering ECGR 4143/5195 Electrical Machinery Fall 2009
Problem 1: Using DC Mchine University o North CrolinChrlotte Deprtment o Electricl nd Computer Engineering ECGR 4143/5195 Electricl Mchinery Fll 2009 Problem Set 4 Due: Thursdy October 8 Suggested Reding:
More informationLab 8. Speed Control of a D.C. motor. The Motor Drive
Lb 8. Speed Control of D.C. motor The Motor Drive Motor Speed Control Project 1. Generte PWM wveform 2. Amplify the wveform to drive the motor 3. Mesure motor speed 4. Mesure motor prmeters 5. Control
More informationSynchronous Generator Line Synchronization
Synchronous Genertor Line Synchroniztion 1 Synchronous Genertor Line Synchroniztion Introduction One issue in power genertion is synchronous genertor strting. Typiclly, synchronous genertor is connected
More informationExperiment 3: The research of Thevenin theorem
Experiment 3: The reserch of Thevenin theorem 1. Purpose ) Vlidte Thevenin theorem; ) Mster the methods to mesure the equivlent prmeters of liner twoterminl ctive. c) Study the conditions of the mximum
More informationDESIGN OF CONTINUOUS LAG COMPENSATORS
DESIGN OF CONTINUOUS LAG COMPENSATORS J. Pulusová, L. Körösi, M. Dúbrvská Institute of Robotics nd Cybernetics, Slovk University of Technology, Fculty of Electricl Engineering nd Informtion Technology
More informationExample. Check that the Jacobian of the transformation to spherical coordinates is
lss, given on Feb 3, 2, for Mth 3, Winter 2 Recll tht the fctor which ppers in chnge of vrible formul when integrting is the Jcobin, which is the determinnt of mtrix of first order prtil derivtives. Exmple.
More informationISSCC 2006 / SESSION 21 / ADVANCED CLOCKING, LOGIC AND SIGNALING TECHNIQUES / 21.5
21.5 A 1.1GHz ChrgeRecovery Logic Visvesh Sthe, JungYing Chueh, Mrios Ppefthymiou University of Michign, Ann Aror, MI Boost Logic is chrgerecovery circuit fmily cple of operting t GHzclss frequencies
More informationKirchhoff s Rules. Kirchhoff s Laws. Kirchhoff s Rules. Kirchhoff s Laws. Practice. Understanding SPH4UW. Kirchhoff s Voltage Rule (KVR):
SPH4UW Kirchhoff s ules Kirchhoff s oltge ule (K): Sum of voltge drops round loop is zero. Kirchhoff s Lws Kirchhoff s Current ule (KC): Current going in equls current coming out. Kirchhoff s ules etween
More informationABB STOTZKONTAKT. ABB ibus EIB Current Module SM/S Intelligent Installation Systems. User Manual SM/S In = 16 A AC Un = 230 V AC
User Mnul ntelligent nstlltion Systems A B 1 2 3 4 5 6 7 8 30 ma 30 ma n = AC Un = 230 V AC 30 ma 9 10 11 12 C ABB STOTZKONTAKT Appliction Softwre Current Vlue Threshold/1 Contents Pge 1 Device Chrcteristics...
More informationSequential Logic (2) Synchronous vs Asynchronous Sequential Circuit. Clock Signal. Synchronous Sequential Circuits. FSM Overview 9/10/12
9//2 Sequentil (2) ENGG5 st Semester, 22 Dr. Hden So Deprtment of Electricl nd Electronic Engineering http://www.eee.hku.hk/~engg5 Snchronous vs Asnchronous Sequentil Circuit This Course snchronous Sequentil
More informationExponentialHyperbolic Model for Actual Operating Conditions of Three Phase Arc Furnaces
Americn Journl of Applied Sciences 6 (8): 15391547, 2009 ISSN 15469239 2009 Science Publictions ExponentilHyperbolic Model for Actul Operting Conditions of Three Phse Arc Furnces 1 Mhdi Bnejd, 2 RhmtAllh
More informationThreePhase Synchronous Machines The synchronous machine can be used to operate as: 1. Synchronous motors 2. Synchronous generators (Alternator)
ThreePhse Synchronous Mchines The synchronous mchine cn be used to operte s: 1. Synchronous motors 2. Synchronous genertors (Alterntor) Synchronous genertor is lso referred to s lterntor since it genertes
More informationMultibeam antennas in a broadband wireless access system
Multiem ntenns in rodnd wireless ccess system Ulrik Engström, Mrtin Johnsson, nders Derneryd nd jörn Johnnisson ntenn Reserch Center Ericsson Reserch Ericsson SE4 84 Mölndl Sweden Emil: ulrik.engstrom@ericsson.com,
More informationREVIEW QUESTIONS. Figure For Review Question Figure For Review Question Figure For Review Question 10.2.
HAPTE 0 Sinusoidl StedyStte Anlysis 42 EVIEW QUESTIONS 0. The voltge cross the cpcitor in Fig. 0.43 is: () 5 0 V () 7.07 45 V (c) 7.07 45 V (d) 5 45 V Ω 0.5 efer to the circuit in Fig. 0.47 nd oserve
More informationExperiment 8 Series DC Motor (II)
Ojectives To control the speed of loded series dc motor y chnging rmture voltge. To control the speed of loded series dc motor y dding resistnce in prllel with the rmture circuit. To control the speed
More informationHomework #1 due Monday at 6pm. White drop box in Student Lounge on the second floor of Cory. Tuesday labs cancelled next week
Announcements Homework #1 due Mondy t 6pm White drop ox in Student Lounge on the second floor of Cory Tuesdy ls cncelled next week Attend your other l slot Books on reserve in Bechtel Hmley, 2 nd nd 3
More informationDSPbased PLLcontrolled khz 20 kw highfrequency induction heating system for surface hardening and welding applications
DSPsed PLLcontrolled 5 1 khz 2 kw highfrequency induction heting system for surfce hrdening nd welding pplictions N.S. Byındır, O. K.ukrer nd M. Ykup Astrct: A digitl signl processor (DSP)sed phselocked
More informationFuzzy Logic Controller for Three Phase PWM ACDC Converter
Journl of Electrotechnology, Electricl Engineering nd Mngement (2017) Vol. 1, Number 1 Clusius Scientific Press, Cnd Fuzzy Logic Controller for Three Phse PWM ACDC Converter Min Muhmmd Kml1,, Husn Ali2,b
More informationInvestigation of propagation of partial discharges in power transformers and techniques for locating the discharge
Investigtion of propgtion of prtil dischrges in power trnsformers nd techniques for locting the dischrge S.N. Hettiwtte, Z.D. Wng nd P.A. Crossley Astrct: The loction of prtil dischrges in power trnsformer
More informationMath Circles Finite Automata Question Sheet 3 (Solutions)
Mth Circles Finite Automt Question Sheet 3 (Solutions) Nickols Rollick nrollick@uwterloo.c Novemer 2, 28 Note: These solutions my give you the nswers to ll the prolems, ut they usully won t tell you how
More informationMixed CMOS PTL Adders
Anis do XXVI Congresso d SBC WCOMPA l I Workshop de Computção e Aplicções 14 20 de julho de 2006 Cmpo Grnde, MS Mixed CMOS PTL Adders Déor Mott, Reginldo d N. Tvres Engenhri em Sistems Digitis Universidde
More informationDiscontinued AN6262N, AN6263N. (planed maintenance type, maintenance type, planed discontinued typed, discontinued type)
ICs for Cssette, Cssette Deck ANN, ANN Puse Detection s of Rdio Cssette, Cssette Deck Overview The ANN nd the ANN re the puse detection integrted circuits which select the progrm on the cssette tpe. In
More informationA Novel Back EMF Zero Crossing Detection of Brushless DC Motor Based on PWM
A ovel Bck EMF Zero Crossing Detection of Brushless DC Motor Bsed on PWM Zhu Bopeng Wei Hifeng School of Electricl nd Informtion, Jingsu niversity of Science nd Technology, Zhenjing 1003 Chin) Abstrct:
More informationThe Discussion of this exercise covers the following points:
Exercise 4 Bttery Chrging Methods EXERCISE OBJECTIVE When you hve completed this exercise, you will be fmilir with the different chrging methods nd chrgecontrol techniques commonly used when chrging NiMI
More informationPassive and Active DC Breakers in the Three GorgesChangzhou HVDC Project
Pssive nd Active DC Brekers in the Three GorgesChngzhou HVDC Project Dg Andersson, Dr, nd Anders Henriksson, B.Sc.E.E, ABB, Sweden explined below) re AbstrctA new type of DC breker, bsed on stndrd SF
More informationEET 438a Automatic Control Systems Technology Laboratory 5 Control of a Separately Excited DC Machine
EE 438 Automtic Control Systems echnology bortory 5 Control of Seprtely Excited DC Mchine Objective: Apply proportionl controller to n electromechnicl system nd observe the effects tht feedbck control
More informationTHE STUDY OF INFLUENCE CORE MATERIALS ON TECHNOLOGICAL PROPERTIES OF UNIVERSAL BENTONITE MOULDING MATERIALS. Matej BEZNÁK, Vladimír HANZEN, Ján VRABEC
THE STUDY OF INFLUENCE CORE MATERIALS ON TECHNOLOGICAL PROPERTIES OF UNIVERSAL BENTONITE MOULDING MATERIALS Mtej BEZNÁK, Vldimír HANZEN, Ján VRABEC Authors: Mtej Beznák, Assoc. Prof. PhD., Vldimír Hnzen,
More informationDataflow Language Model. DataFlow Models. Applications of Dataflow. Dataflow Languages. Kahn process networks. A Kahn Process (1)
The slides contin revisited mterils from: Peter Mrwedel, TU Dortmund Lothr Thiele, ETH Zurich Frnk Vhid, University of liforni, Riverside Dtflow Lnguge Model Drsticlly different wy of looking t computtion:
More informationINSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
Hll Ticket No Question Pper Code: AEC009 INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigl, Hyderd  500 043 MODEL QUESTION PAPER Four Yer B.Tech V Semester End Exmintions, Novemer  2018 Regultions:
More informationDesign And Implementation Of Luo Converter For Electric Vehicle Applications
Design And Implementtion Of Luo Converter For Electric Vehicle Applictions A.Mnikndn #1, N.Vdivel #2 ME (Power Electronics nd Drives) Deprtment of Electricl nd Electronics Engineering Sri Shkthi Institute
More informationDirect Current Circuits. Chapter Outline Electromotive Force 28.2 Resistors in Series and in Parallel 28.3 Kirchhoff s Rules 28.
P U Z Z L E R If ll these pplinces were operting t one time, circuit reker would proly e tripped, preventing potentilly dngerous sitution. Wht cuses circuit reker to trip when too mny electricl devices
More informationSimulation of Transformer Based ZSource Inverter to Obtain High Voltage Boost Ability
Interntionl Journl of cience, Engineering nd Technology Reserch (IJETR), olume 4, Issue 1, October 15 imultion of Trnsformer Bsed Zource Inverter to Obtin High oltge Boost Ability A.hnmugpriy 1, M.Ishwry
More informationAlternatingCurrent Circuits
chpter 33 AlterntingCurrent Circuits 33.1 AC Sources 33.2 esistors in n AC Circuit 33.3 Inductors in n AC Circuit 33.4 Cpcitors in n AC Circuit 33.5 The LC Series Circuit 33.6 Power in n AC Circuit 33.7
More informationGeometric quantities for polar curves
Roerto s Notes on Integrl Clculus Chpter 5: Bsic pplictions of integrtion Section 10 Geometric quntities for polr curves Wht you need to know lredy: How to use integrls to compute res nd lengths of regions
More informationRegular languages can be expressed as regular expressions.
Regulr lnguges cn e expressed s regulr expressions. A generl nondeterministic finite utomton (GNFA) is kind of NFA such tht: There is unique strt stte nd is unique ccept stte. Every pir of nodes re connected
More informationNetwork Theorems. Objectives 9.1 INTRODUCTION 9.2 SUPERPOSITION THEOREM
M09_BOYL3605_13_S_C09.indd Pge 359 24/11/14 1:59 PM f403 /204/PH01893/9780133923605_BOYLSTAD/BOYLSTAD_NTRO_CRCUT_ANALYSS13_S_978013... Network Theorems Ojectives Become fmilir with the superposition theorem
More informationLocalization of Latent Image in Heterophase AgBr(I) Tabular Microcrystals
Interntionl ymposium on ilver Hlide Technology Locliztion of Ltent Imge in Heterophse AgBr(I) Tulr Microcrystls Elen V. Prosvirkin, Aigul B. Aishev, Timothy A. Lrichev, Boris A. echkrev Kemerovo tte University,
More informationMagnetic monopole field exposed by electrons
Mgnetic monopole field exposed y electrons A. Béché, R. Vn Boxem, G. Vn Tendeloo, nd J. Vereeck EMAT, University of Antwerp, Groenenorgerln 171, 22 Antwerp, Belgium Opticl xis Opticl xis Needle Smple Needle
More informationStatic and dynamic backcorona characteristics
Sttic nd dynmic ckcoron chrcteristics Ginluc Bcchieg, Ivo Gllimerti, IRS srl  vi Vigonovese 8135124 Pdov  Itly (emil: cchieg@irswe.it) Véronique Arrondel, Philippe Rizer, Jérôme Lecointre, Michel
More informationModule 9. DC Machines. Version 2 EE IIT, Kharagpur
Module 9 DC Mchines Version EE IIT, Khrgpur esson 40 osses, Efficiency nd Testing of D.C. Mchines Version EE IIT, Khrgpur Contents 40 osses, efficiency nd testing of D.C. mchines (esson40) 4 40.1 Gols
More informationTwolayer slottedwaveguide antenna array with broad reflection/gain bandwidth at millimetrewave frequencies
Twolyer slottedwveguide ntenn rry with rod reflection/gin ndwidth t millimetrewve frequencies S.S. Oh, J.W. Lee, M.S. Song nd Y.S. Kim Astrct: A 24 24 slottedwveguide rry ntenn is presented in
More informationPolar Coordinates. July 30, 2014
Polr Coordintes July 3, 4 Sometimes it is more helpful to look t point in the xyplne not in terms of how fr it is horizontlly nd verticlly (this would men looking t the Crtesin, or rectngulr, coordintes
More informationControl of highfrequency AC link electronic transformer
Control of highfrequency AC link electronic trnsformer H. Krishnswmi nd V. Rmnrynn Astrct: An isolted highfrequency link AC/AC converter is termed n electronic trnsformer. The electronic trnsformer hs
More information10.4 AREAS AND LENGTHS IN POLAR COORDINATES
65 CHAPTER PARAMETRIC EQUATINS AND PLAR CRDINATES.4 AREAS AND LENGTHS IN PLAR CRDINATES In this section we develop the formul for the re of region whose oundry is given y polr eqution. We need to use the
More informationSafety Relay Unit. Main contacts Auxiliary contact Number of input channels Rated voltage Model Category. possible 24 VAC/VDC G9SA501.
Sfety Rely Unit The Series Offers Complete Lineup of Compct Units. Four kinds of mm wide Units re ville: A pole model, pole model, nd models with poles nd OFFdely poles, s well s Twohnd ler. Simple
More informationAN ELECTRON SWITCH. by C. DORSMAN and S. L. de BRUIN.
SEPTEMBER 1939 267 AN ELECTRON SWITCH y C. DORSMAN nd S. L. de BRUIN. 621.317.755.06 An pprtus is descried with which the time function of two different mgnitudes cn e oserved simultneouslyon the fluorescent
More informationPulse and frequency responses of broadband low frequency ultrasonic transducers
Pulse nd frequency responses of rodnd low frequency ultrsonic trnsducers A. Vldišusks, L. Mžeik, R. Šliteris, R. Rišutis, A. Jnkusks Ultrsound Institute, Kuns University of Technology, Studentu 5, LT1368
More informationModeling of Conduction and Switching Losses in ThreePhase Asymmetric MultiLevel Cascaded Inverter
Proceedings of the 5th WEA nt. onf. on Power ystems nd Electromgnetic omptibility, orfu, Greece, August 2325, 2005 (pp176181) Modeling of onduction nd witching Losses in ThreePhse Asymmetric MultiLevel
More informationExperiment 3: NonIdeal Operational Amplifiers
Experiment 3: NonIdel Opertionl Amplifiers 9/11/06 Equivlent Circuits The bsic ssumptions for n idel opertionl mplifier re n infinite differentil gin ( d ), n infinite input resistnce (R i ), zero output
More informationExperiment 3: NonIdeal Operational Amplifiers
Experiment 3: NonIdel Opertionl Amplifiers Fll 2009 Equivlent Circuits The bsic ssumptions for n idel opertionl mplifier re n infinite differentil gin ( d ), n infinite input resistnce (R i ), zero output
More informationThis is a repository copy of Effect of power state on absorption cross section of personal computer components.
This is repository copy of Effect of power stte on bsorption cross section of personl computer components. White Rose Reserch Online URL for this pper: http://eprints.whiterose.c.uk/10547/ Version: Accepted
More informationSection 2.2 PWM converter driven DC motor drives
Section 2.2 PWM converter driven DC motor drives 2.2.1 Introduction Controlled power supply for electric drives re obtined mostly by converting the mins AC supply. Power electronic converter circuits employing
More informationNP10 DIGITAL MULTIMETER Functions and features of the multimeter:
NP10 DIGITL MULTIMETER. unctions nd fetures of the multimeter: 1000 V CT III tri requencies from 10.00...10 M. Diode mesurement nd continuity testing. HOLD mesurement. Reltive mesurement. Duty cycle (%)
More informationTranslate and Classify Conic Sections
TEKS 9.6 A.5.A, A.5.B, A.5.D, A.5.E Trnslte nd Clssif Conic Sections Before You grphed nd wrote equtions of conic sections. Now You will trnslte conic sections. Wh? So ou cn model motion, s in E. 49. Ke
More informationNevery electronic device, since all the semiconductor
Proceedings of Interntionl Joint Conference on Neurl Networks, Orlndo, Florid, USA, August 1217, 2007 A Selftuning for Reltime Voltge Regultion Weiming Li, XioHu Yu Abstrct In this reserch, selftuning
More informationElectronic Circuits I  Tutorial 03 Diode Applications I
Electronic Circuits I  Tutoril 03 Diode Applictions I 1 / 9  T & F # Question 1 A diode cn conduct current in two directions with equl ese. F 2 When reversebised, diode idelly ppers s short. F 3 A
More informationExperimental Application of H OutputFeedback Controller on Two Links of SCARA Robot
INTERNATIONAL JOURNAL OF CONTROL, AUTOMATION AND SYSTEMS VOL.5 NO. Jnury 6 ISSN 65877 (Print) ISSN 65885 (Online) http://www.reserchpu.org/journl/jc/jc.html Experimentl Appliction of H OutputFeedck
More informationSection 17.2: Line Integrals. 1 Objectives. 2 Assignments. 3 Maple Commands. 1. Compute line integrals in IR 2 and IR Read Section 17.
Section 7.: Line Integrls Objectives. ompute line integrls in IR nd IR 3. Assignments. Red Section 7.. Problems:,5,9,,3,7,,4 3. hllenge: 6,3,37 4. Red Section 7.3 3 Mple ommnds Mple cn ctully evlute line
More informationCS2204 DIGITAL LOGIC & STATE MACHINE DESIGN SPRING 2005
CS2204 DIGITAL LOGIC & STATE MACHINE DESIGN SPRING 2005 EXPERIMENT 1 FUNDAMENTALS 1. GOALS : Lern how to develop cr lrm digitl circuit during which the following re introduced : CS2204 l fundmentls, nd
More informationLow noise SQUID simulator with large dynamic range of up to eight flux quanta
Low noise SQUID simultor with lrge dynmic rnge of up to eight flux qunt A. Mrtinez*, J. Flokstr, C. Rillo**, L.A. Angurel**, L.M. Grci** nd H.J.M. ter Brke Twente University of Technology, Deprtment of
More informationThreePhase NPC Inverter Using ThreePhase Coupled Inductor
ThreePhse NPC Inverter Using ThreePhse Coupled Inductor Romeu Husmnn 1, Rodrigo d Silv 2 nd Ivo Brbi 2 1 Deprtment of Electricl nd Telecommuniction Engineering, University of Blumenu FURB Blumenu SC Brzil,
More informationARC DISCHARGE AND EROSION BEHAVIOR OF SILVER ELECTRIC CONTACTS BETWEEN STATIC GAP
ARC DISCHARGE AND EROSION BEHAVIOR OF SILVER ELECTRIC CONTACTS BETWEEN STATIC GAP Chung, HH. 1 Lee, RT. 2. Chiou, YC. 2 1 Deprtment of Automtion Engineering KoYun Institute of Technology 2 Deprtment
More informationInvestigation of Ground Frequency Characteristics
Journl of Electromgnetic Anlysis nd Applictions, 03, 5, 337 http://dx.doi.org/0.436/jem.03.58050 Published Online August 03 (http://www.scirp.org/journl/jem) Mohmed Nyel Electricl Engineering Deprtment,
More informationOn the control of photovoltaic maximum power point tracker via output parameters
On the control of photovoltic mximum power point trcker vi output prmeters D. Shmilovitz Astrct: A new pproch for trcking the mximum power point of photovoltic rrys is presented. The mximum power point
More informationHigh Speed OnChip Interconnects: Trade offs in Passive Termination
High Speed OnChip Interconnects: Trde offs in Pssive Termintion Rj Prihr University of Rochester, NY, USA prihr@ece.rochester.edu Abstrct In this pper, severl pssive termintion schemes for high speed
More informationPostprint. This is the accepted version of a paper presented at IEEE PES General Meeting.
http://www.divportl.org Postprint This is the ccepted version of pper presented t IEEE PES Generl Meeting. Cittion for the originl published pper: Mhmood, F., Hooshyr, H., Vnfretti, L. (217) Sensitivity
More informationPerformance Monitoring Fundamentals: Demystifying Performance Assessment Techniques
Simplifying PID Control. Optimizing Plnt Performnce. Performnce Monitoring Fundmentls: Demystifying Performnce Assessment Techniques Roert C. Rice, PhD Rchelle R. Jyringi Dougls J. Cooper, PhD Control
More informationA COMPARISON OF CIRCUIT IMPLEMENTATIONS FROM A SECURITY PERSPECTIVE
A COMPARISON OF CIRCUIT IMPLEMENTATIONS FROM A SECURITY PERSPECTIVE Mster Thesis Division of Electronic Devices Deprtment of Electricl Engineering Linköping University y Timmy Sundström LITHISYEX05/3698SE
More informationLecture 16: Four Quadrant operation of DC Drive (or) TYPE E Four Quadrant chopper Fed Drive: Operation
Lecture 16: Four Qudrnt opertion of DC Drive (or) TYPE E Four Qudrnt chopper Fed Drive: Opertion The rmture current I is either positive or negtive (flow in to or wy from rmture) the rmture voltge is lso
More informationExtended InGaAs Photodiodes IG26Series
Description The IG26series is pnchromtic PIN photodiode with nominl wvelength cutoff t 2.6 µm. This series hs been designed for demnding spectroscopic nd rdiometric pplictions. It offers excellent shunt
More informationStudy on SLT calibration method of 2port waveguide DUT
Interntionl Conference on Advnced Electronic cience nd Technology (AET 206) tudy on LT clibrtion method of 2port wveguide DUT Wenqing Luo, Anyong Hu, Ki Liu nd Xi Chen chool of Electronics nd Informtion
More informationCOMPARISON OF THE EFFECT OF FILTER DESIGNS ON THE TOTAL HARMONIC DISTORTION IN THREEPHASE STANDALONE PHOTOVOLTAIC SYSTEMS
O. 0, NO., NOEMBER 05 ISSN 896608 ARPN Journl of Engineering nd Applied Sciences 00605 Asin Reserch Pulishing Network (ARPN). All rights reserved. www.rpnjournls.com OMPARISON OF THE EFFET OF FITER ESIGNS
More informationSection 16.3 Double Integrals over General Regions
Section 6.3 Double Integrls over Generl egions Not ever region is rectngle In the lst two sections we considered the problem of integrting function of two vribles over rectngle. This sitution however is
More informationMacroscopic and Microscopic Springs Procedure
Mrosopi nd Mirosopi Springs Proedure OBJECTIVE Purpose In this l you will: investigte the springlike properties of stright wire, disover the strethiness of mteril, independent of the size nd shpe of n
More informationUniversity of Dayton Research Institute Dayton, Ohio, Materials Laboratory Wright Patterson AFB, Ohio,
LEAKY PLATE WAVE INSPECTION OF BIAXIAL COMPOSITES Richrd W. Mrtin University of Dyton Reserch Institute Dyton, Ohio, 454690001 Dle E. Chimenti Mterils Lortory Wright Ptterson AFB, Ohio, 454336533 INTRODUCTION
More information5 I. T cu2. T use in modem computing systems, it is desirable to. A Comparison of HalfBridge Resonant Converter Topologies
74 EEE TRANSACTONS ON POER ELECTRONCS, VOL. 3, NO. 2, APRL 988 A Comprison of HlfBridge Resonnt Converter Topologies AbstrctThe hlfbridge seriesresonnt, prllelresonnt, nd combintion seriesprllel
More informationTriangles and parallelograms of equal area in an ellipse
1 Tringles nd prllelogrms of equl re in n ellipse Roert Buonpstore nd Thoms J Osler Mthemtics Deprtment RownUniversity Glssoro, NJ 0808 USA uonp0@studentsrownedu osler@rownedu Introduction In the pper
More informationAnalysis of circuits containing active elements by using modified T  graphs
Anlsis of circuits contining ctive elements using modified T  grphs DALBO BOLEK *) nd EA BOLKOA**) Deprtment of Telecommunictions *) dioelectronics **) Brno Universit of Technolog Purknov 8, 6 Brno CECH
More informationUnderstanding Basic Analog Ideal Op Amps
Appliction Report SLAA068A  April 2000 Understnding Bsic Anlog Idel Op Amps Ron Mncini Mixed Signl Products ABSTRACT This ppliction report develops the equtions for the idel opertionl mplifier (op mp).
More informationOpen Access A Novel Parallel Currentsharing Control Method of Switch Power Supply
Send Orders for Reprints to reprints@enthmscience.e 170 The Open Electricl & Electronic Engineering Journl, 2014, 8, 170177 Open Access A Novel Prllel Currentshring Control Method of Switch Power Supply
More informationSolutions to exercise 1 in ETS052 Computer Communication
Solutions to exercise in TS52 Computer Communiction 23 Septemer, 23 If it occupies millisecond = 3 seconds, then second is occupied y 3 = 3 its = kps. kps If it occupies 2 microseconds = 2 6 seconds, then
More informationMEASURE THE CHARACTERISTIC CURVES RELEVANT TO AN NPN TRANSISTOR
Electricity Electronics Bipolr Trnsistors MEASURE THE HARATERISTI URVES RELEVANT TO AN NPN TRANSISTOR Mesure the input chrcteristic, i.e. the bse current IB s function of the bse emitter voltge UBE. Mesure
More information(1) Primary Trigonometric Ratios (SOH CAH TOA): Given a right triangle OPQ with acute angle, we have the following trig ratios: ADJ
Tringles nd Trigonometry Prepred y: S diyy Hendrikson Nme: Dte: Suppose we were sked to solve the following tringles: Notie tht eh tringle hs missing informtion, whih inludes side lengths nd ngles. When
More informationCarbon Composition Resistors
Dimensions Cron Composition Resistors Rtings nd Dimensions Type L Specifiction Limit nd Performnce d D Derting Curve 8 6 4 (/, w) Test procedures, sequence of test, etc., refer to MILSTD D nd JISC5.
More informationMAXIMUM FLOWS IN FUZZY NETWORKS WITH FUNNELSHAPED NODES
MAXIMUM FLOWS IN FUZZY NETWORKS WITH FUNNELSHAPED NODES Romn V. Tyshchuk Informtion Systems Deprtment, AMI corportion, Donetsk, Ukrine Emil: rt_science@hotmil.com 1 INTRODUCTION During the considertion
More informationElectrical data Nominal voltage AC/DC 24 V Nominal voltage frequency
echnicl dt sheet RF24MFO Communictive rotry ctutor with emergency control function for ll vlves Nominl torque 2.5 Nm Nominl voltge AC/DC 24 V Control Modulting DC ()2...1 V Position feedck DC 2...1 V
More informationAlgebra Practice. Dr. Barbara Sandall, Ed.D., and Travis Olson, M.S.
By Dr. Brr Sndll, Ed.D., Dr. Melfried Olson, Ed.D., nd Trvis Olson, M.S. COPYRIGHT 2006 Mrk Twin Medi, Inc. ISBN 9781580377546 Printing No. 404042EB Mrk Twin Medi, Inc., Pulishers Distriuted y CrsonDellos
More informationElectrical data Nominal voltage AC/DC 24 V Nominal voltage frequency
echnicl dt sheet SR24AMF Prmeterisle rotry ctutor for ll vlves Nominl torque 20 Nm Nominl voltge AC/DC 24 V Control Modulting DC (0)2...10 V Vrile Position feedck DC 2...10 V Vrile echnicl dt Electricl
More informationModal Analysis as a Means of Explaining the Oscillatory Behaviour of Transformers
Modl Anlysis s Mens of Explining the Oscilltory Behviour of Trnsformers Modl nlysis hs proved to e n outstnding id in the clcultion nd mesurement of nturl oscill tions of trnsformers. With modl prmeters
More informationFPGA Based FivePhase Sinusoidal PWM Generator
22 IEEE Interntionl Conference on Power nd Energy (PECon), 25 Decemer 22, Kot Kinlu Sh, Mlysi FPGA Bsed FivePhse Sinusoidl PWM Genertor Tole Sutikno Dept. of Electricl Engineering Universits Ahmd Dhln
More informationPRO LIGNO Vol. 11 N pp
THE INFLUENCE OF THE TOOL POINT ANGLE AND FEED RATE ON THE DELAMINATION AT DRILLING OF PRELAMINATED PARTICLEBOARD Mihi ISPAS Prof.dr.eng. Trnsilvni University of Brsov Fculty of Wood Engineering Address:
More informationCalculation of OffCore Inductance in DualCircuit Model of Transformer
Clcultion of OffCore Inductnce in DulCircuit Model of Trnsformer As Lotfi NTNU Trondheim, Norwy s.lotfi@ntnu.no Hns Kr. Hoidlen NTNU Trondheim, Norwy hns.hoidlen@ntnu.no Nicol Chies Sttoil Trondheim,
More informationPerformance Comparison of Sliding Mode Control and Conventional PI Controller for Speed Control of Separately Excited Direct Current Motors
Journl of Science nd Technology Vol. 13, No. 2 Engineering nd Computer Sciences (ECS) Performnce Comprison of Sliding Mode Control nd Conventionl PI Controller for Speed Control of Seprtely Excited Direct
More informationPWM Inverters. Rijil Ramchand Associate Professor NIT Calicut
PWM Inerters Rijil Rmchnd Associte Professor NI Clicut Inerters Clssifictions Single phse & three phse oltge Source & Current source woleel & Multileel 5/15/15 PEGCRES 15 oltge Source Inerter opics Sinusoidl
More information