Application of Aigtek High Voltage Amplifier in Piezoelectric Ceramic High Power Test System

The test system mainly includes signal generator, high voltage amplifier, digital oscilloscope, voltage/current probe, laser Doppler speedometer, computer control system and software, etc. In the test, the computer control software sends out instructions, and the signal generator triggers an initial sinusoidal signal after obtaining the instructions, which is amplified by a high-voltage amplifier and applied to the sample to be tested, causing the sample to vibrate. During the vibration of the sample, the laser Doppler vibration velocimeter monitors its vibration speed, and the probe collects the voltage across the sample or the current passing through the sample.

I believe that the small partners who usually pay attention to power amplifiers must be very interested in the content of the related cases. Today, the editor of Aigtek will share with you a pure dry goods case: the application of high-voltage amplifiers in piezoelectric ceramic high-power test systems. Say more, let’s continue to look down with the editor!

Experiment name:The application of high-voltage amplifier in piezoelectric ceramic high-power test system

Purpose: Test to obtain high-power mechanical quality factor under high vibration speed, which objectively reflects the performance of piezoelectric components when applied.

experiment apparatus: Signal generator, voltage/current probe, computer, ATA-4052 high voltage amplifier, digital oscilloscope, laser vibrometer, fixture and piezoelectric ceramic samples, etc.

experiment procedure: The test system mainly includes signal generators, high-voltage amplifiers, digital oscilloscopes, voltage/current probes, laser Doppler velocimeters, computer control systems and software. In the test, the computer control software sends out instructions, and the signal generator triggers an initial sinusoidal signal after obtaining the instructions, which is amplified by a high-voltage amplifier and applied to the sample to be tested, causing the sample to vibrate. During the vibration of the sample, the laser Doppler vibration velocimeter monitors its vibration speed, and the probe collects the voltage across the sample or the current passing through the sample. The two test results are collected by the oscilloscope and fed back to the computer terminal for final processing through self-developed software. The flow chart of the test system is shown below.

Application of Aigtek High Voltage Amplifier in Piezoelectric Ceramic High Power Test System

Experimental result:

The change of the mechanical energy density and the change of the mechanical factor with the vibration speed.

Application of Aigtek High Voltage Amplifier in Piezoelectric Ceramic High Power Test System

Application of Aigtek High Voltage Amplifier in Piezoelectric Ceramic High Power Test System

Experimental results:

The high-power characteristics of piezoelectric ceramics and the change curve of the mechanical quality factor of piezoelectric ceramics with vibration speed are studied. The research results show that the Qm value decreases with the increase of the vibration speed; the change trend of the curve is different when the vibration mode or vibration state is different; at low vibration speed (

Application of Aigtek High Voltage Amplifier in Piezoelectric Ceramic High Power Test System

The Links:   LM24P20 PM50RSA120

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