Application Cases

Experiment Name: Application of High-Voltage Amplifier in Electric Field Sensor Testing

Research Direction: Non-Contact Electric Field Sensors

Experiment Objective: To test the performance metrics of the electric field sensor prototype, such as linearity, resolution, sensitivity, and detection range, thereby demonstrating the sensor's performance parameters.

Experiment Content: The tests are conducted at room temperature maintained at 25°C, with a humidity of 50±10%, and under standard atmospheric pressure of 101 kPa. A high-voltage amplifier with a gain of 0-2000 (ATA-7050, Aigtek, China) is used to amplify the voltage signal generated by the signal generator. The amplified signal is connected to two parallel copper plates via wires, creating a uniform electric field between the plates. By adjusting the gain of the signal generator and the high-voltage amplifier, the electric field strength and frequency range are adjusted. The sensor's output signal is detected, collected, and the relevant performance parameters are calculated.

Testing Equipment: Signal generator, ATA-7050 high-voltage amplifier, probe, power supply, data acquisition card, PC, etc.

Experiment Process: The signal generator is connected to the high-voltage amplifier to amplify the signal and output it to the parallel copper plates, creating a uniform electric field between them. The sensor prototype is placed within the field to detect the electric field signal. The sensor's output signal is collected by the data acquisition system and analyzed in real-time using a program.

Test Results: The results show that the electric field sensor has excellent performance, capable of detecting electric fields in the range of DC-1kHz and 0-150 kV/m. Its linearity is less than 1%, and its resolution reaches 50 V/m.

High-Voltage Amplifier Recommendation: ATA-7050 High-Voltage Amplifier

Figure: Specifications of the ATA-7050 High-Voltage Amplifier