Lab Manual. Experiment FREQUENCY SWEEP. Created by Hong-Van Tran

Transcription

1 Lab Manual Experiment FREQUENCY SWEEP Created by Hong-Van Tran Lab of Electromechanical Energy Department of Precision Engineering. National Chung Hsing University April 19, 2018

2 CONTENTS DESCRIBE... pape 1 PURPOSE... 1 MAIN FLOW CHART... 1 A. Materials... 1 B. Setup... 5 a. Connect Shaker Power amplifier... 5 b. Connect Power amplifier Function generator... 6 c. Connect Function generator Computer... 6 d. Connect Sensor Head Spot (LK-H150) Main controller (LK-G5001V)... 6 e. Connect Sensor Head Spot (LK-H020) Main controller (LK-G5001V)... 7 f. Connect Main controller (LK-G5001V) Computer... 7 g. Setup Your model Shaker7 C. Experiment... 8 Sub flowchart... 8 a. Adjust 02 sensor head spot... 9 b. Turn on Function generator... 9 c. Open software... 9 d. Turn on Amplifier e. Adjust parameters LabVIEW f. Enable signal CH1 (Function generator) g. Measure vibration Shaker h. Amplitude (amp.) i. Amp. Amp(refer) j. Record Amp. Into Table k. Change Vp-p LabVIEW l. freq = freq + step... 13

3 m. freq >= freq_max n. Unable signal CH1 (Function generator) o. Set value Table into LabVIEW p. Enable signal CH1 (Function generator) q. Change to run automatic LabVIEW r. Measure vibration your model D. Results... 15

4 1 1 5 F r e q u e n c y s w e e p DESCRIBE During the frequency sweep the frequency is varied while the amplitude of the deformation - or alternatively the amplitude of the shear stress - is kept constant. For the analysis the storage and loss modulus are plotted against the frequency. The data at low frequencies describe the behavior of the samples at slow changes of stress. PURPOSE - Understanding the control parameters of software LabVIEW (Function generator (OK)). - How to setup to measure vibration Frequency sweep MAIN FLOW CHART BEGIN Materials A Setup B Experiment C Results D END A. Materials No. Instrument Model Qty. Notes 1 Shaker APS Power Amplifier APS Power supply 24VDC KV-U Main controller LK-G5001V 01 Laser displacement sensor 5 Sensor Head Spot LK-H Laser displacement sensor 6 Sensor Head Spot LK-H Laser displacement sensor 7 Function generator WW WW5062 No. Software Notes 1 LK-Navigator 2 Configuration Software for the LK-G5000 Series 2 LabVIEW Control Function generator (WW5062)

5 2 1 5 F r e q u e n c y s w e e p Equipments 1. Shaker (APS113) Power Amplifier (APS125) Power supply KV-U2 24V

6 3 1 5 F r e q u e n c y s w e e p Laser displacement sensor 4. LK-G5001V (Main controller) Sensor Head Spot Type 5. LK-H LK-H Function generator (WW5062)

7 4 1 5 F r e q u e n c y s w e e p Software 1. LK-Navigator 2 2. LabVIEW

8 5 1 5 F r e q u e n c y s w e e p B. Setup Shaker (APS113) g Your model Sensor Head Spot (LK-H150) d a Power amplifier (APS125) Power supply (110 VAC) Sensor Head Spot (LK-H020) e b Function generator (WW5062) Power supply (KV-U2-24VDC) Main controller (LK-G5001V) USB c f USB a. Connect Shaker Power amplifier Shaker Power amplifier

9 6 1 5 F r e q u e n c y s w e e p b. Connect Power amplifier Function generator CH1 Power amplifier Function generator c. Connect Function generator Computer Use cable USB to connect Function generator and Computer d. Connect Sensor Head Spot (LK-H150) Main controller (LK-G5001V) 1 HEAD Main controller (LK-G5001V) Sensor Head Spot type LK-H150

10 7 1 5 F r e q u e n c y s w e e p e. Connect Sensor Head Spot (LK-H020) Main controller (LK-G5001V) Main controller (LK-G5001V) Sensor Head Spot type LK-H020 f. Connect Main controller (LK-G5001V) Computer Use cable USB to connect Main controller (LK-G5001V) and Computer g. Setup Your model Shaker Shaker Your model

11 8 15 F r e q u e n c y s w e e p C. Experiment Sub flowchart BEGIN Adjust 02 sensor head spot a 1 C Amp. Amp(refer) No Turn on Function generator b i Yes Open Software c Record Amp. into Table j Change Vp-p LabVIEW k Turn on Amplifier d freq = freq + step l 2 C Adjust parameters LabVIEW e freq >= freq_max m Yes No 2 C 2 C Enable signal CH1 - generator Measure vibration Shaker f g Unable signal CH1 - generator Set value Table into LabVIEW n o Change to run Auto LabVIEW Measure vibration Your model r q Amplitude (amp.) h Enable signal CH1 - generator p data Your model s 1 C END

12 9 1 5 F r e q u e n c y s w e e p a. Adjust 02 sensor head spot Step 1 Led blue Step 2 Led blue Step1: Adjust Sensor Head spot type LK-H020 - LK-H020 measure Shaker - Adjust position of LK-H020 until the led change yellow to blue Step 2: Adjust Sensor Head spot type LK-H150 - LK-H150 measure your model - Adjust position of LK-H150 until the led change yellow to blue b. Turn on Function generator Here c. Open software Step 1: Open software LK-Navigator 2 - Double click the LK-Navigator 2 icon to launch LK-Navigator 2.

13 F r e q u e n c y s w e e p Step 2: Open software LabVIEW - Double click the LabVIEW icon to launch LabVIEW - Double click the project Function generator (OK) icon to launch function d. Turn on Amplifier Current Limit Gain Power Led current Step 1: Unable signal (CH1 Function generator) Step 2: Adjust volume (Current Limit) to min Step 3: Adjust volume (Gain) to Reset (0) Step 4: Turn on power Step 5: Adjust volume (Current Limit) (slowly) Step 6: Adjust volume (Gain) (slowly) - The value is no more than a half maximum Attention: During experiment the Led current turn on (red color) Step 1: Turn of power Amplifier Step 2: Unable signal (CH1 Function generator) Step 3: Adjust volume (Current Limit) to min Step 4: Adjust volume (Gain) to Reset (0) Step 5: Turn on power Step 6: Adjust volume (Current Limit) (slowly) - The position more than position before Step 7: Adjust volume (Gain) (slowly) - The value is the same a value before

14 F r e q u e n c y s w e e p e. Adjust parameters LabVIEW Step 1: UP/DOWN - Experiment up sweep or down sweep Step 2: Minimum (Hz) - The minimum frequency Step 3: Maximum (Hz) - The maximum frequency Step 4: Step (Hz) - Each Time(ms) the frequency signal increase 1 step Step 5: Time(ms) - The time change the frequency signal 6 7 Step 6: Frequency signal - The minimum frequency Step 7: Amplitude signal - The minimum amplitude signal f. Enable signal CH1 (Function generator) Here

15 F r e q u e n c y s w e e p g. Measure vibration Shaker Step 1: Data Storage setting - Choose amount of Data stored - Choose Sampling cycle x - Selected OUT01 - Click Send to Controller(S) 2 3 Step 2: Record data - Click Start Storage

16 F r e q u e n c y s w e e p Step 3: Load data - Click Storage Data Readout (L) h. Amplitude (amp.) - Measure maximum signal - Measure minimum signal - Amp. = Max Min (signal) i. Amp. Amp(refer) - Compare measure amplitude with desired amplitude j. Record Amp. Into Table - If measure amplitude is equal desired amplitude, then record data into Table No. Frequency (Hz) Vp-p (amplitude signal) k. Change Vp-p LabVIEW - If measure amplitude is no equal desired amplitude, then increase the amplitude signal. Here l. freq = freq + step - Change frequency only 1 step Here m. freq >= freq_max - If current frequency signal is more than maximum frequency signal, then completed to get the range amplitude signal each frequency. n. Unable signal CH1 (Function generator) - Turn off the signal CH1

17 F r e q u e n c y s w e e p o. Set value Table into LabVIEW No. Frequency (Hz) Vp-p (amplitude signal) p. Enable signal CH1 (Function generator) Here q. Change to run automatic LabVIEW Here r. Measure vibration your model 1 2 Step 1: Record data - Click Start Storage

18 F r e q u e n c y s w e e p Step 2: Load data - Click Storage Data Readout (L) Attention: Choose Data Storage setting before step q (Change to run automatic LabVIEW) - Choose amount of Data stored - Choose Sampling cycle x - Selected OUT03 - Click Send to Controller(S) D. Results Step1: Get data Step 2: Turn off Function generator Step 3: Turn off Amplifier Step 3.1: Adjust volume (Gain) to Reset (0) Step 3.2: Adjust volume (Current Limit) to min Step 3.3: Turn off power Step 4: Unplug all off power instruments Attention: - Clean area your experiment - Return the equipment to original locations