Magnetic induction with Cobra3
|
|
- Dora Newman
- 6 years ago
- Views:
Transcription
1 Principle A magnetic field of variable frequency and varying strength is produced in a long coil. The voltages induced across thin coils which are pushed into the long coil are determined as a function of frequency and field strength of the magnetic field and the number of turns and the cross-section of the induction coil. Related topics Maxwell s equations, electrical eddy field, magnetic field of coils, coil, magnetic flux, induced voltage. Tasks Determination of the induction voltage as a function 1. of the strength of the magnetic field, 2. of the frequency of the magnetic field, 3. of the number of turns of the induction coil, 4. of the cross-section of the induction coil. Fig. 1: Experimental set-up P PHYWE Systeme GmbH & Co. KG All rights reserved 1
2 Magnetic induction with Cobra3 Equipment 1 Field coil, 750 mm, 485 turns/m Induction coil, 300 turns, dia. 40 mm Induction coil, 300 turns, dia. 32 mm Induction coil, 300 turns, dia. 25 mm Induction coil, 200 turns, dia. 40 mm Induction coil, 100 turns, dia. 40 mm Induction coil, 150 turns, dia. 25 mm Induction coil, 75 turns, dia. 25 mm Connecting cord, 32 A, 750 mm, red Connecting cord, 32 A, 750 mm, blue Connecting cord, 32 A, 2000 mm, blue Cobra3 Basic Unit Power supply, 12 V RS 232 data cable PowerGraph Software Cobra3 Function generator module PC, Windows 95 or higher Set-up and Procedure Set up the equipment as seen in Fig.1. The field generating coil is connected to the function generator module and the induction coils to be put into the field generating coil are connected to "Analog In 2 / S2", best to the two yellow sockets (+ and ) and not to ground. Connect the Cobra3 Basic Unit to the computer port COM1, COM2 or to USB port (for USB computer port use USB to RS232 Converter ) and start the "measure" program. Select "Gauge" > "PowerGraph" and on the now visible "Setup" chart click the function generator symbol. Use the function generator in the constant current mode the produced field strength depending on the current strength is of interest and not the voltage that is needed to produce it. First use the function generator to produce a current ramp at a fixed frequency. Set the parameters as seen on Fig PHYWE Systeme GmbH & Co. KG All rights reserved P
3 Fig. 2: Function generator module settings for the amplitude ramp P PHYWE Systeme GmbH & Co. KG All rights reserved 3
4 Magnetic induction with Cobra3 Fig 3 Then click the "Analog In 2 / S2" symbol and set the module to "Burst measurement" as seen in Fig. 3. The "Settings" and "Display" charts of PowerGraph should look like Fig. 4 and Fig. 5. Fig. 4: The "Settings" chart of PowerGraph for amplitude ramp 4 PHYWE Systeme GmbH & Co. KG All rights reserved P
5 Fig 5: "Displays" chart of PowerGraph Take a measurement for each of the induction coils. Start measuring with the "Continue" button. (If you plan to make a logarithmic plot, correct the resulting curves by subtracting the value at zero current I from all values using "Analysis" > "Channel modification " with "U2" as "Source channel". The zero offset is due to digital noise and voltage induced from stray fields and may be regarded as constant during one measurement but may change slightly from measurement to measurement due to different arrangements of your cables. The offset deforms the logarithmic plot strongly but does not matter in a normal plot.) Note down the slope of the curve evaluated with the "Regression" tool of "measure" (in the linear plot). Then set the function generator on the "Setup" chart of PowerGraph to tune the frequency from 100 to 1000 Hz with constant current strength, i.e. constant magnetic field amplitude. See Fig. 6 for suitable settings. The "Settings" chart of PowerGraph should look like Fig. 7. Again take a measurement of each of the induction coils. (The correction of the zero offset may be done using the "Regression" tool of "measure": Subtract the value delivered by the "Regression" function as zero offset from the "U2" data using again "Analysis" > "Channel modification ".) Note down the slope values for further evaluation. P PHYWE Systeme GmbH & Co. KG All rights reserved 5
6 Magnetic induction with Cobra3 Fig. 6: Module settings for frequency ramp 6 PHYWE Systeme GmbH & Co. KG All rights reserved P
7 Fig. 7: "Settings" chart for frequency ramp Theory and evaluation For the first part with the constant frequency the obtained data may look like Fig. 8 if put into one single diagram with "Measurement" > "Assume channel " and scaled to the same value with "Scale curves". Fig. 8: Voltage response of the different coils vs. current in the field generating coil for fixed frequency of 800 Hz P PHYWE Systeme GmbH & Co. KG All rights reserved 7
8 Magnetic induction with Cobra3 Use the function "Regression" of "measure" to evaluate the slopes of the recorded measurement data yielding the response voltage of the induction coils per current strength in the field coil in V/A. Plot the response voltage per ma for induction coils with the same diameter but different number of turns vs. the number of turns and plot the response voltage per ma for induction coils with the same number of turns but different diameters vs. the cross-section area corresponding to the diameter. Use "Measurement" > "Enter data manually " to do so. Fig. 9 and Fig. 10 show possible results. Fig. 9: Voltage response vs. number of turns at constant crosssection area 8 PHYWE Systeme GmbH & Co. KG All rights reserved P
9 Fig. 10: Voltage response vs. cross-section area with constant number of turns Fig. 11 shows the voltage response of the induction coil in dependency of the frequency of the field. With the data of Fig. 11 an analogous evaluation is possible. Fig. 11: Voltage response vs. frequency P PHYWE Systeme GmbH & Co. KG All rights reserved 9
10 Magnetic induction with Cobra3 For the comparison of the experimental data with theory two quantities must be determined in relation to the experimental parameters: 1. The inducted voltage in the induction coil in dependence of the number of turns and the cross sectional area of the induction coil and for a given field. 2. The magnetic field generated by the field coil in dependence of the length and the number of turns of the field coil and in dependence of the current flowing through the field coil. The generated magnetic field by the field coil is the given field for the induction coil in this experiment. Both relations follows from Maxwell s laws and the experimental conditions. Induction coil: According to Maxwell's second law, the induced electric potential by a changing magnetic flux ϕ(t) is the voltage U along a closed line C with U = C E d s = dφ d t φ(t) = A B d A (1) (2) A is the area enclosed by the line C. Inside the long field coil the magnetic field (given field for the induction coil) is spatial homogenous and only the amount of the field can change in time. Furthermore the cross sectional area A of the induction coil is in a plane perpendicular to B. Relation (2) can therefore be written as φ(t) = B (t) A (3) Inserting (3) in (1) and taking into account that the induction coil consists out of n parallel conductor loops yields U (t) = n A d B dt (4) 10 PHYWE Systeme GmbH & Co. KG All rights reserved P
11 Fig. 12: Bilogarithmic plot induced voltage vs. field producing current Fig. 13: Bilogarithmic plot induced voltage vs. field frequency P PHYWE Systeme GmbH & Co. KG All rights reserved 11
12 Magnetic induction with Cobra3 Field coil: Maxwell s first law μ 0 A B d s = j d A together with Maxwell's fourth law and A B d A = 0 I = A j d A results in B (t) = μ 0 m l I(t) (5) for the magnetic field generated by the field coil. µ 0 = Vs/Am is the magnetic field constant, m is the number of turns and l the lengths of the field coil. The current that flows through the field coil is denoted by I(t). Finally combination of the result for the induction coil (4), the result for the field coil (5) and I(t) = I 0 sin (ωt) yields U (t) = μ 0 n A m l I 0 cos(ω t) (6) or for the effective values U eff = μ 0 ω n A m l I eff So the voltage U eff on the induction coils should be proportional to the number of turns n of the induction coil the cross-sectional area A of the induction coil the number of turns m of the field coil the length l of the field coil the frequency ω of the current through the field coil the amount I eff of the current through the field coil. (7) The figures 8 to 11 display these proportionalities. The linear dependencies can be proved with help of bilogarithmic plots. For the dependencies of the induced voltage on the frequency and amount of the current through the field coil this is shown in Fig. 12 and PHYWE Systeme GmbH & Co. KG All rights reserved P
13 From equation (7) follows μ 0 = U I eff n ω A n for the magnetic field constant. With ω = 2 π f = 5027 Hz, m l = m yields Fig. 9 for the area 1320 mm 2 = m 2 the slope mv/(a n), thus 6 Vs μ 0 = Am for the area 531 mm 2 = m 2 the slope mv/(a n), thus μ 0 = Vs Am and Fig 10 yields for 300 turns the slope mv/(a mm 2 ), thus μ 0 = Vs Am These values fit quite well with the literature value of field constant. 6 Vs μ 0 = Am for the magnetic P PHYWE Systeme GmbH & Co. KG All rights reserved 13
Magnetic induction with Cobra3
Magnetic induction with Cobra3 LEP Related Topics Maxwell s equations, electrical eddy field, magnetic field of coils, coil, magnetic flux, induced voltage. Principle A magnetic field of variable frequency
More informationInductance of solenoids with Cobra3
Inductance of solenoids with Cobra3 TEP Related topics Law of inductance, Lenz s law, self-inductance, solenoids, transformer, oscillatory circuit, resonance, damped oscillation, logarithmic decrement,
More informationCoil in the AC circuit with Cobra3
Coil in the AC circuit with Cobra3 TEP Related topics Inductance, Kirchhoff s laws, Maxwell s equations, a.c. impedance, phase displacement. Principle and task The coil is connected in a circuit with a
More informationTEP. RLC Circuit with Cobra3
RLC Circuit with Cobra3 TEP Related topics Tuned circuit, series-tuned circuit, parallel-tuned circuit, resistance, capacitance, inductance, capacitor, coil, phase displacement, Q-factor, band-width,impedance,
More informationRLC Circuit with Cobra3
RLC Circuit with Cobra3 LEP Related topics Tuned circuit, series-tuned circuit, parallel-tuned circuit, resistance, capacitance, inductance, capacitor, coil, phase displacement, Q-factor, band-width,impedance,
More informationElectricity. Coil in the AC circuit /11. Electrodynamics. What you need:
Electrodynamics Electricity Coil in the AC circuit -01/11 What you can learn about Inductance Kirchhoff s laws Maxwell s equations AC impedance Phase displacement Principle: The coil is connected in a
More informationInductance of solenoids
Inductance of solenoids LEP -01 Related topics Law of inductance, Lenz s law, self-inductance, solenoids, transformer, oscillatory circuit, resonance, damped oscillation, logarithmic decrement, Q factor.
More informationRLC-circuits with Cobra4 Xpert-Link TEP. 1 2 π L C. f res=
Related topics Damped and forced oscillations, Kirchhoff s laws, series and parallel tuned circuit, resistance, capacitance, inductance, reactance, impedance, phase displacement, Q-factor, band-width Principle
More informationMASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2005 Experiment 10: LR and Undriven LRC Circuits
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.0 Spring 005 Experiment 10: LR and Undriven LRC Circuits OBJECTIVES 1. To determine the inductance L and internal resistance R L of a coil,
More informationCoil in the AC circuit
Coil in the AC circuit LEP Related topics Inductance, Kirchhoff s laws, parallel connection, series connection, a. c. impedance, phase displacement, vector diagram Principle The impedance and phase displacement
More informationKirchhoff s laws, induction law, Maxwell equations, current, voltage, resistance, parallel connection, series connection, potentiometer
Kirchhoff s laws with Cobra4 TEP Related Topics Kirchhoff s laws, induction law, Maxwell equations, current, voltage, resistance, parallel connection, series connection, potentiometer Principle First Kirchhoff
More informationRLC-circuits TEP. f res. = 1 2 π L C.
RLC-circuits TEP Keywords Damped and forced oscillations, Kirchhoff s laws, series and parallel tuned circuit, resistance, capacitance, inductance, reactance, impedance, phase displacement, Q-factor, band-width
More informationMagnetic field inside a conductor
Magnetic field inside a conductor TEP Principle A current is passed through an electrolyte producing a magnetic field. This magnetic field inside the conductor is measured as function of position and current
More informationRLC-circuits with Cobra4 Xpert-Link
Student's Sheet RLC-circuits with Cobra4 Xpert-Link (Item No.: P2440664) Curricular Relevance Area of Expertise: Physics Subtopic: Inductance, Electromagnetic Oscillations, AC Circuits Topic: Electricity
More information29 th International Physics Olympiad
29 th International Physics Olympiad Reykjavik, Iceland Experimental competition Monday, July 6th, 1998 Time available: 5 hours Read this first: Use only the pen provided. 1. Use only the front side of
More informationCH 1. Large coil. Small coil. red. Function generator GND CH 2. black GND
Experiment 6 Electromagnetic Induction "Concepts without factual content are empty; sense data without concepts are blind... The understanding cannot see. The senses cannot think. By their union only can
More informationLEP RLC Circuit
RLC Circuit LEP Related topics Kirchhoff s laws, series and parallel tuned circuit, resistance, capacitance, inductance, phase displacement, Q-factor, band-width, loss resistance, damping Principle The
More information13 th Asian Physics Olympiad India Experimental Competition Wednesday, 2 nd May 2012
13 th Asian Physics Olympiad India Experimental Competition Wednesday, nd May 01 Please first read the following instructions carefully: 1. The time available is ½ hours for each of the two experimental
More informationElectromagnetic Induction - A
Electromagnetic Induction - A APPARATUS 1. Two 225-turn coils 2. Table Galvanometer 3. Rheostat 4. Iron and aluminum rods 5. Large circular loop mounted on board 6. AC ammeter 7. Variac 8. Search coil
More informationPHYS 1444 Section 003 Lecture #19
PHYS 1444 Section 003 Lecture #19 Monday, Nov. 14, 2005 Electric Generators DC Generator Eddy Currents Transformer Mutual Inductance Today s homework is homework #10, due noon, next Tuesday!! 1 Announcements
More informationFaraday s Law PHYS 296 Your name Lab section
Faraday s Law PHYS 296 Your name Lab section PRE-LAB QUIZZES 1. What will we investigate in this lab? 2. State and briefly explain Faraday s Law. 3. For the setup in Figure 1, when you move the bar magnet
More informationName: Lab Partner: Section: The purpose of this lab is to study induction. Faraday s law of induction and Lenz s law will be explored. B = B A (8.
Chapter 8 Induction - Faraday s Law Name: Lab Partner: Section: 8.1 Purpose The purpose of this lab is to study induction. Faraday s law of induction and Lenz s law will be explored. 8.2 Introduction It
More informationLab E2: B-field of a Solenoid. In the case that the B-field is uniform and perpendicular to the area, (1) reduces to
E2.1 Lab E2: B-field of a Solenoid In this lab, we will explore the magnetic field created by a solenoid. First, we must review some basic electromagnetic theory. The magnetic flux over some area A is
More informationExperiment 9: AC circuits
Experiment 9: AC circuits Nate Saffold nas2173@columbia.edu Office Hour: Mondays, 5:30PM-6:30PM @ Pupin 1216 INTRO TO EXPERIMENTAL PHYS-LAB 1493/1494/2699 Introduction Last week (RC circuit): This week:
More informationPHYSICS WORKSHEET CLASS : XII. Topic: Alternating current
PHYSICS WORKSHEET CLASS : XII Topic: Alternating current 1. What is mean by root mean square value of alternating current? 2. Distinguish between the terms effective value and peak value of an alternating
More informationDC and AC Circuits. Objective. Theory. 1. Direct Current (DC) R-C Circuit
[International Campus Lab] Objective Determine the behavior of resistors, capacitors, and inductors in DC and AC circuits. Theory ----------------------------- Reference -------------------------- Young
More informationFigure 4.1 Vector representation of magnetic field.
Chapter 4 Design of Vector Magnetic Field Sensor System 4.1 3-Dimensional Vector Field Representation The vector magnetic field is represented as a combination of three components along the Cartesian coordinate
More informationPHYS 1442 Section 004 Lecture #15
PHYS 1442 Section 004 Lecture #15 Monday March 17, 2014 Dr. Andrew Brandt Chapter 21 Generator Transformer Inductance 3/17/2014 1 PHYS 1442-004, Dr. Andrew Brandt Announcements HW8 on Ch 21-22 will be
More informationPHYS 1444 Section 501 Lecture #20
PHYS 1444 Section 501 Lecture #0 Monday, Apr. 17, 006 Transformer Generalized Faraday s Law Inductance Mutual Inductance Self Inductance Inductor Energy Stored in the Magnetic Field 1 Announcements Quiz
More informationAcoustic Doppler Effect
Acoustic Doppler Effect TEP Related Topics Wave propagation, Doppler shift of frequency Principle If an emitter of sound or a detector is set into motion relative to the medium of propagation, the frequency
More informationThe solar cell as a diode
The solar cell as a diode ENT Keywords Solar energy, photovoltaics, solar cell, diode, and dark characteristic Principle A solar cell consists of a p-doped layer and of an n-doped layer. Under the influence
More informationRC and RL Circuits Prelab
RC and RL Circuits Prelab by Dr. Christine P. Cheney, Department of Physics and Astronomy, 401 Nielsen Physics Building, The University of Tennessee, Knoxville, Tennessee 37996-1200 2018 by Christine P.
More informationAttenuation and velocity of ultrasound in solid state materials (transmission)
Attenuation and velocity of ultrasound in solid 5.1.6.08 Related Topics Propagation of ultrasonic waves, time of flight, sound velocity, damping of ultrasonic waves (scattering, reflection, absorption),
More informationPHYS 1441 Section 001 Lecture #22 Wednesday, Nov. 29, 2017
PHYS 1441 Section 001 Lecture #22 Chapter 29:EM Induction & Faraday s Law Transformer Electric Field Due to Changing Magnetic Flux Chapter 30: Inductance Mutual and Self Inductance Energy Stored in Magnetic
More informationOhm s Law. Equipment. Setup
rev 05/2018 Ohm s Law Equipment Qty Item Part Number 1 AC/DC Electronics Laboratory EM-8656 1 Current Sensor CI-6556 1 Multimeter 4 Patch Cords 2 Banana Clips 1 100Ω Resistor Purpose The purpose of this
More informationStanding Waves. Equipment
rev 12/2016 Standing Waves Equipment Qty Items Parts Number 1 String Vibrator WA-9857 1 Mass and Hanger Set ME-8967 1 Pulley ME-9448B 1 Universal Table Clamp ME-9376B 1 Small Rod ME-8988 2 Patch Cords
More informationWheatstone bridge (Item No.: P )
Wheatstone bridge (Item No.: P2410200) Curricular Relevance Area of Expertise: Physics Education Level: University Topic: Electricity and Magnetism Subtopic: Electric Current and Resistance Experiment:
More informationUltrasonic. Advantages
Ultrasonic Advantages Non-Contact: Nothing touches the target object Measures Distance: The distance to the target is measured, not just its presence Long and Short Range: Objects can be sensed from 2
More informationLecture 38: MON 24 NOV Ch.33 Electromagnetic Waves
Physics 2113 Jonathan Dowling Heinrich Hertz (1857 1894) Lecture 38: MON 24 NOV Ch.33 Electromagnetic Waves Maxwell Equations in Empty Space: E da = 0 S B da = 0 S C C B ds = µ ε 0 0 E ds = d dt d dt S
More informationEquipment for Attenuation and velocity of ultrasound in solid state materials (transmission), experimental set-up
Attenuation and velocity of ultrasound in solid TEAS Related Topics Propagation of ultrasonic waves, time of flight, sound velocity, damping of ultrasonic waves (scattering, reflection, absorption), transmission
More information1. If the flux associated with a coil varies at the rate of 1 weber/min,the induced emf is
1. f the flux associated with a coil varies at the rate of 1 weber/min,the induced emf is 1 1. 1V 2. V 60 3. 60V 4. Zero 2. Lenz s law is the consequence of the law of conservation of 1. Charge 2. Mass
More informationtotal j = BA, [1] = j [2] total
Name: S.N.: Experiment 2 INDUCTANCE AND LR CIRCUITS SECTION: PARTNER: DATE: Objectives Estimate the inductance of the solenoid used for this experiment from the formula for a very long, thin, tightly wound
More information15. the power factor of an a.c circuit is.5 what will be the phase difference between voltage and current in this
1 1. In a series LCR circuit the voltage across inductor, a capacitor and a resistor are 30 V, 30 V and 60 V respectively. What is the phase difference between applied voltage and current in the circuit?
More informationR. W. Erickson. Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder
R. W. Erickson Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder 13.2.3 Leakage inductances + v 1 (t) i 1 (t) Φ l1 Φ M Φ l2 i 2 (t) + v 2 (t) Φ l1 Φ l2 i 1 (t)
More informationAlternating current circuits- Series RLC circuits
FISI30 Física Universitaria II Professor J.. ersosimo hapter 8 Alternating current circuits- Series circuits 8- Introduction A loop rotated in a magnetic field produces a sinusoidal voltage and current.
More informationCore Technology Group Application Note 1 AN-1
Measuring the Impedance of Inductors and Transformers. John F. Iannuzzi Introduction In many cases it is necessary to characterize the impedance of inductors and transformers. For instance, power supply
More informationInductive Conductivity Measurement of Seawater
Inductive Conductivity Measurement of Seawater Roger W. Pryor, Ph.D. Pryor Knowledge Systems *Corresponding author: 498 Malibu Drive, Bloomfield Hills, MI, 48302-223, rwpryor@pksez.com Abstract: Approximately
More informationDigital Function Generator
Digital Function Generator 13654-99 PHYWE Systeme GmbH & Co. KG Robert-Bosch-Breite 10 37079 Göttingen Germany Tel. +49 (0) 551 604-0 Fax +49 (0) 551 604-107 E-mail info@phywe.de Operating Instructions
More information1. The induced current in the closed loop is largest in which one of these diagrams?
PSI AP Physics C Electromagnetic Induction Multiple Choice Questions 1. The induced current in the closed loop is largest in which one of these diagrams? (A) (B) (C) (D) (E) 2. A loop of wire is placed
More informationLFR: flexible, clip-around current probe for use in power measurements
LFR: flexible, clip-around current probe for use in power measurements These technical notes should be read in conjunction with the LFR short-form datasheet. Power Electronic Measurements Ltd Nottingham
More informationTransformers. Department of Physics & Astronomy Texas Christian University, Fort Worth, TX. April 23, 2013
Transformers Department of Physics & Astronomy Texas Christian University, Fort Worth, TX April 23, 2013 1 Introduction In the early nineteenth century, Hans Christian Øersted discovered that a magnetic
More informationDEEP FLAW DETECTION WITH GIANT MAGNETORESISTIVE (GMR) BASED SELF-NULLING PROBE
DEEP FLAW DETECTION WITH GIANT MAGNETORESISTIVE (GMR) BASED SELF-NULLING PROBE Buzz Wincheski and Min Namkung NASA Langley Research Center Hampton, VA 23681 INTRODUCTION The use of giant magnetoresistive
More informationReal Time Rotor Bar Current Measurements Using a Rogowski Coil Transmitted Using Wireless Technology
Real Time Rotor Bar Current Measurements Using a Rogowski Coil Transmitted Using Wireless Technology Ehsan Abdi Jalebi, Paul Roberts and Richard McMahon ea257@cam.ac.uk, pcr2@cam.ac.uk, ram1@cam.ac.uk
More informationActivity P51: LR Circuit (Power Output, Voltage Sensor)
Activity P51: LR Circuit (Power Output, Voltage Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win) Circuits P51 LR Circuit.DS (See end of activity) (See end of activity) Equipment Needed
More informationTHE SINUSOIDAL WAVEFORM
Chapter 11 THE SINUSOIDAL WAVEFORM The sinusoidal waveform or sine wave is the fundamental type of alternating current (ac) and alternating voltage. It is also referred to as a sinusoidal wave or, simply,
More information10 Electromagnetic Interactions
Lab 10 Electromagnetic Interactions What You Need To Know: The Physics Electricity and magnetism are intrinsically linked and not separate phenomena. A changing magnetic field can create an electric field
More informationInductor and Transformer Design
Inductor and Transformer Design 1 Introduction The conditioning of power flow in Power Electronic Systems (PES) is done through the use of electromagnetic elements (inductors and transformers). In this
More informationExperiment P42: Transformer (Power Amplifier, Voltage Sensor)
PASCO scientific Vol. 2 Physics Lab Manual: P42-1 Experiment P42: (Power Amplifier, Voltage Sensor) Concept Time SW Interface Macintosh File Windows File basic electricity 30 m 700 P42 P42_XTRN.SWS EQUIPMENT
More informationEC-5 MAGNETIC INDUCTION
EC-5 MAGNETIC INDUCTION If an object is placed in a changing magnetic field, or if an object is moving in a non-uniform magnetic field in such a way that it experiences a changing magnetic field, a voltage
More informationElectromagnetic Induction
Chapter 16 Electromagnetic Induction In This Chapter: Electromagnetic Induction Faraday s Law Lenz s Law The Transformer Self-Inductance Inductors in Combination Energy of a Current-Carrying Inductor Electromagnetic
More informationMagnetism and Induction
Magnetism and Induction Before the Lab Read the following sections of Giancoli to prepare for this lab: 27-2: Electric Currents Produce Magnetism 28-6: Biot-Savart Law EXAMPLE 28-10: Current Loop 29-1:
More informationLab E5: Filters and Complex Impedance
E5.1 Lab E5: Filters and Complex Impedance Note: It is strongly recommended that you complete lab E4: Capacitors and the RC Circuit before performing this experiment. Introduction Ohm s law, a well known
More informationElectromagnetic Oscillations and Currents. March 23, 2014 Chapter 30 1
Electromagnetic Oscillations and Currents March 23, 2014 Chapter 30 1 Driven LC Circuit! The voltage V can be thought of as the projection of the vertical axis of the phasor V m representing the time-varying
More informationMASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring Experiment 11: Driven RLC Circuit
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.2 Spring 24 Experiment 11: Driven LC Circuit OBJECTIVES 1. To measure the resonance frequency and the quality factor of a driven LC circuit.
More informationTeacher s Guide - Activity P51: LR Circuit (Power Output, Voltage Sensor)
Teacher s Guide - Activity P51: LR Circuit (Power Output, Voltage Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win) Circuits P51 LR Circuit.DS (See end of activity) (See end of activity)
More informationExperiment P-10 Ohm's Law
1 Experiment P-10 Ohm's Law Objectives To study the relationship between the voltage applied to a given resistor and the intensity of the current running through it. Modules and Sensors PC + NeuLog application
More informationAc fundamentals and AC CIRCUITS. Q1. Explain and derive an expression for generation of AC quantity.
Ac fundamentals and AC CIRCUITS Q1. Explain and derive an expression for generation of AC quantity. According to Faradays law of electromagnetic induction when a conductor is moving within a magnetic field,
More informationR. W. Erickson. Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder
R. W. Erickson Department of Electrical, Computer, and Energy Engineering University of Colorado, Boulder 13.3.2 Low-frequency copper loss DC resistance of wire R = ρ l b A w where A w is the wire bare
More informationIntermediate and Advanced Labs PHY3802L/PHY4822L
Intermediate and Advanced Labs PHY3802L/PHY4822L Torsional Oscillator and Torque Magnetometry Lab manual and related literature The torsional oscillator and torque magnetometry 1. Purpose Study the torsional
More informationET1210: Module 5 Inductance and Resonance
Part 1 Inductors Theory: When current flows through a coil of wire, a magnetic field is created around the wire. This electromagnetic field accompanies any moving electric charge and is proportional to
More informationRC_Circuits RC Circuits Lab Q1 Open the Logger Pro program RC_RL_Circuits via the Logger Launcher icon on your desktop. RC Circuits Lab Part1 Part 1: Measuring Voltage and Current in an RC Circuit 1. 2.
More informationVienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria, 2
Dominik Perchtold 1, Manfred Kaltenbacher 1, Hendrik Husstedt 2 1 Vienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria, dominik.perchtold@tuwien.ac.at 2 Deutsches Hörgeräte Institut GmbH,
More informationUNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering
UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering EXPERIMENT 2 BASIC CIRCUIT ELEMENTS OBJECTIVES The purpose of this experiment is to familiarize the student with
More informationGoals. Introduction. To understand the use of root mean square (rms) voltages and currents.
Lab 10. AC Circuits Goals To show that AC voltages cannot generally be added without accounting for their phase relationships. That is, one must account for how they vary in time with respect to one another.
More informationExperiment 13: LR Circuit
012-05892A AC/DC Electronics Laboratory Experiment 13: LR Circuit Purpose Theory EQUIPMENT NEEDED: Computer and Science Workshop Interface Power Amplifier (CI-6552A) (2) Voltage Sensor (CI-6503) AC/DC
More informationExperiment 18: Driven RLC Circuit
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8. Spring 3 Experiment 8: Driven LC Circuit OBJECTIVES To measure the resonance frequency and the quality factor of a driven LC circuit INTODUCTION
More informationElectromagnetic Can Crusher Victoria Meadows and Matthew Kundrock Advisor: Dr. Gore. Introduction
Electromagnetic Can Crusher Victoria Meadows and Matthew Kundrock Advisor: Dr. Gore Introduction Our Capstone Project was to build an Electromagnetic Can Crusher, a device that will crush an aluminum can
More informationBakiss Hiyana binti Abu Bakar JKE, POLISAS BHAB
1 Bakiss Hiyana binti Abu Bakar JKE, POLISAS 1. Explain AC circuit concept and their analysis using AC circuit law. 2. Apply the knowledge of AC circuit in solving problem related to AC electrical circuit.
More informationInductors & Resonance
Inductors & Resonance The Inductor This figure shows a conductor carrying a current. A magnetic field is set up around the conductor as concentric circles. If a coil of wire has a current flowing through
More informationPESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Electronics & Communication Engineering
CONTINUOUS INTERNAL EVALUATION TEST -1 Date : 27/2/2018 Marks:60 Subject & Code : Basic Electrical Engineering, 17ELE25 Section: A,B,C,D,E Time : 8:30 am 11:30 a.m Name of faculty: Mrs. Dhanashree Bhate,
More informationD102. Damped Mechanical Oscillator
D10. Damped Mechanical Oscillator Aim: design and writing an application for investigation of a damped mechanical oscillator Measurements of free oscillations of a damped oscillator Measurements of forced
More information11. AC-resistances of capacitor and inductors: Reactances.
11. AC-resistances of capacitor and inductors: Reactances. Purpose: To study the behavior of the AC voltage signals across elements in a simple series connection of a resistor with an inductor and with
More informationElectricity. Interference of microwaves Electromagnetic Oscillations and Waves. What you need:
Electromagnetic Oscillations and Waves Electricity What you can learn about Wavelength Standing wave Reflection Transmission Michelson interferometer Principle: A microwave beam, after reflection from
More informationRadio Frequency Electronics
Radio Frequency Electronics Preliminaries II Guglielmo Giovanni Maria Marconi Thought off by many people as the inventor of radio Pioneer in long-distance radio communications Shared Nobel Prize in 1909
More informationElectric Transformer. Specifically, for each coil: Since the rate of change in flux through single loop of each coil are approximately the same,
Electric Transformer Safety and Equipment Computer with PASCO 850 Universal Interface and PASCO Capstone Coils Set 3 Double Banana Cables PASCO Voltage Sensor (DIN to Banana cable with slip-on Alligator
More informationCharacterization of Magnet Noise in Superconducting Magnets When Charging the Magnetic Field in Unidirectional Steps
Overview MPMS Service Note 11- Characterization of Magnet Noise in Superconducting Magnets When Charging the Magnetic Field in Unidirectional Steps This service note outlines the effects of magnet noise
More informationSingle-turn and multi-turn coil domains in 3D COMSOL. All rights reserved.
Single-turn and multi-turn coil domains in 3D 2012 COMSOL. All rights reserved. Introduction This tutorial shows how to use the Single-Turn Coil Domain and Multi-Turn Coil Domain features in COMSOL s Magnetic
More informationExperiment 4: Grounding and Shielding
4-1 Experiment 4: Grounding and Shielding Power System Hot (ed) Neutral (White) Hot (Black) 115V 115V 230V Ground (Green) Service Entrance Load Enclosure Figure 1 Typical residential or commercial AC power
More informationThe 34th International Physics Olympiad
The 34th International Physics Olympiad Taipei, Taiwan Experimental Competition Wednesday, August 6, 2003 Time Available : 5 hours Please Read This First: 1. Use only the pen provided. 2. Use only the
More informationInvestigate in magnetic micro and nano structures by Magnetic Force Microscopy (MFM)
Investigate in magnetic micro and nano 5.3.85- Related Topics Magnetic Forces, Magnetic Force Microscopy (MFM), phase contrast imaging, vibration amplitude, resonance shift, force Principle Caution! -
More informationCurrent Sensor: ACS750xCA-100
5 Pin 1: V CC Pin 2: Gnd Pin 3: Output 4 1 2 3 Terminal 4: I p+ Terminal 5: I p- ABSOLUTE MAXIMUM RATINGS Operating Temperature S... 2 to +85ºC E... 4 to +85ºC Supply Voltage, Vcc...16 V Output Voltage...16
More informationExercise 9: inductor-resistor-capacitor (LRC) circuits
Exercise 9: inductor-resistor-capacitor (LRC) circuits Purpose: to study the relationship of the phase and resonance on capacitor and inductor reactance in a circuit driven by an AC signal. Introduction
More information12/6/2011. Electromagnetic Induction. Electromagnetic Induction and Electromagnetic Waves. Checking Understanding. Magnetic Flux. Lenz s Law.
Electromagnetic Induction and Electromagnetic Waves Topics: Electromagnetic induction Lenz s law Faraday s law The nature of electromagnetic waves The spectrum of electromagnetic waves Electromagnetic
More informationLRC Circuit PHYS 296 Your name Lab section
LRC Circuit PHYS 296 Your name Lab section PRE-LAB QUIZZES 1. What will we investigate in this lab? 2. Figure 1 on the following page shows an LRC circuit with the resistor of 1 Ω, the capacitor of 33
More informationCONTROLLING THE OSCILLATIONS OF A SWINGING BELL BY USING THE DRIVING INDUCTION MOTOR AS A SENSOR
Proceedings, XVII IMEKO World Congress, June 7,, Dubrovnik, Croatia Proceedings, XVII IMEKO World Congress, June 7,, Dubrovnik, Croatia XVII IMEKO World Congress Metrology in the rd Millennium June 7,,
More informationFERRITE CORE INDUCTOR VALUE VARIATION WITH NUMBER OF TURNS AND DIAMETER OF COPPER WIRE,LENGTH AND DIAMETER OF CORE
FERRITE CORE INDUCTOR VALUE VARIATION WITH NUMBER OF TURNS AND DIAMETER OF COPPER WIRE,LENGTH AND DIAMETER OF CORE PRJ. NO. 073 PRESENTED BY: OMWENGA EDWIN NYAKUNDI F17/8280/2004 SUPERVISOR : MR. OGABA
More informationEE 210: CIRCUITS AND DEVICES
EE 210: CIRCUITS AND DEVICES LAB #3: VOLTAGE AND CURRENT MEASUREMENTS This lab features a tutorial on the instrumentation that you will be using throughout the semester. More specifically, you will see
More informationSignal and Noise Measurement Techniques Using Magnetic Field Probes
Signal and Noise Measurement Techniques Using Magnetic Field Probes Abstract: Magnetic loops have long been used by EMC personnel to sniff out sources of emissions in circuits and equipment. Additional
More informationPWM P108. Programming Instructions v 3.2 PWM Controller Software
PWM P108 Programming Instructions v 3.2 PWM Controller Software PWM P108 Programming Instructions v 3.2 for PWM Controller Software Download / Install & Run Driver (Must be installed for software to work)
More informationElectron Spin Resonance v2.0
Electron Spin Resonance v2.0 Background. This experiment measures the dimensionless g-factor (g s ) of an unpaired electron using the technique of Electron Spin Resonance, also known as Electron Paramagnetic
More information