It consists of main control bench, heating/vibration/rotation devices, experimental circuits and data

acquisition.

1.Main control bench

Signal generator: 1k~10kHz audio signal, 1~30Hz low-frequency signal

Four DC stabilized power supply: ±15V, +5V, ±2~±10V overlapping in five ranges, 2~24V variable, with

power-off protection.

Digital voltmeter: 0~20V overlapping in three ranges: 200mV, 2V, 20V, with high input impedance and high

accuracy.

Frequency/rotation speed meter: measurement range of frequency: 1~9999Hz, measurement range of rotation

speed: 1~9999rpm

Timer: 0~9999s, with resolution of 0.1s

Temperature adjuster: multi inputs/outputs, artificial intelligence adjust and parameter self-setting, the

accuracy is ±0.50^oC with advanced control algorithm.

2.Heating/vibration/rotation devices

Heating device: AC 0~220V power supply for heating, and the temperature range is ambient temperature~

1200^oC

Rotation device: DC 2~24V power for driving and the rotation speed is in range of 0~3000rpm

Vibration device: the vibration frequency is 1Hz~30Hz (variable) and the resonant frequency is about at

12Hz.

3.Experimental circuits

Consists of tem modules such as bridge, voltage amplifier, differential amplifier, charge amplifier,

capacitor amplifier, LPF, eddy converter, phase-sensitive detector, phase shifter, temperature

measurement and adjust, pressure measurement and adjust and so on.

4. Data acquisition

USB data acquisition card and microprocessor are adopted in this data acquisition system (including the

data acquisition software), 14-way A/D conversion and the A/D conversion speed is up to 400kHz. with this

data acquisition software, it is available to get real-time data acquisition, dynamic or static analysis,

cross calibration curve generating and data sheet, average value calculation, list, curve plotting and

functions of data analysis, save and print, with friendly human-machine interface.

LAB EXERCISES:

1.Metal foil strain gauge-Quarter bridge

2.Metal foil strain gauge-Half bridge

3.Metal foil strain gauge-Full bridge

4.Application of DC full bridge-Electronic balance

5.Application of AC full bridge-Vibration measurement

6.Uncompensated silicon pizeoresistive sensor

7.Appearance of differential transformer

8.characteristic of differential transformer changed by frequency of excitation voltage

9.Compensation for residual voltage at null

10.Application of differential transformer-vibration measurement

11.Capacitive sensor for displacement measurement

12.Capacitive sensor for dynamic measurement

13.Hall sensor in DC excitation for displacement measurement

14.Hall sensor in AC excitation for displacement measurement

15.Hall sensor for rotation speed measurement

16.Hall sensor for vibration measurement

17.Magnetoelectric sensor for rotation speed measurement

18.Piezoelectric sensor for vibration measurement

19.Eddy current sensor for displacement measurement

20.Different appearances of eddy-current sensor when measuring different material

21.Eddy-current sensor for vibration measurement

22.Fiber optic sensor for displacement measurement

23.Fiber optic sensor for rotation speed measurement

24.Fiber optic sensor for vibration measurement

25.Photoelectic sensor for rotation speed measurement

26.PT100 for temperature control

27.Characteristics of temperature sensor

28.Temperature characteristic of platinum resistor

29.thermocouple for temperature measurement

30.Type E thermocouple for temperature measurement

31.Cold junction compensation of thermocouple

32.Gas sensor

33.Humidity sensor

34.Rotation speed control

Computer

C3.06/256M/80G/DVD/17 pure flat

3 and 1/2 digital

multimeter

1. DC voltage: 200mV/2V/20V/200V/1000V ±(0.5%+3)

2. AC voltage: 2V/20V/200V/750V ±(0.8%+5)

3. DC current:20uA/2mA/200mA/20A ±(1.5%+3)

4. AC current: 2mA/20mA/20A ±(1.5%+5)

5. resistance: 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ ±(0.8%+5)

6. conductance: (0.1-100)nS ±(1.0%+30)

7. capacitance: 20nF/200nF/20uF/200uF ±(4.0%+10)

8. frequency: 20kHz ±(1.5%+25) temperature: -40^oC-1000^oC ±(0.75%+3)

9. Special function: diode test, triode test, on/off alarm, low-voltage display,

data hold, self-turning off, functional protection, self-recovery insurance,

shakeproof, 10MΩ input impedance, 3 times/s sample rate, 40-400Hz AC frequency

response, manual operation and the maximum display is 1999.