LMEC-23 Design of Electronic Balance Experiment

Short Description:

This is an application-oriented experiment. The instrument uses the cantilever force sensor commonly used in industry, combined with the full bridge measuring circuit, and guided by the physical principles, an application-oriented electronic scale design experiment is designed.

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Experiments
1. Test the bridge impedance and insulation impedance;
2. Test the zero point output of the sensor;
3. The output of the sensor is tested and the sensitivity of the sensor is calculated;
4. Application experiment: design, calibration and measurement of electronic scale.

Main technical parameters
1. It includes strain beam with four strain gauges, weight and tray, differential amplifier, zero potentiometer, calibration potentiometer (gain adjustment), digital voltmeter, special adjustable power supply, etc.
2. Cantilever pressure sensor: 0-1kg, tray: 120mm;
3. Measuring instrument: voltage 1.5 ~ 5V, 3-bit half digital display, adjustable sensitivity; It can be adjusted to zero;
4. Standard weight group: 1kg;
5. Tested solid: alloy, aluminum, iron, wood, etc;
6. Option: four and a half digit multimeter. 200mV voltage range and 200m Ω resistance range are required.

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Electronic Balance