Application Cases

Experiment Name: Large-Signal Radial Resonance Response Testing of Ferroelectric Ceramics

Experiment Objective: To study the effect of large-signal AC electric field drive on Sm-PMN-PT

Testing Equipment: Signal generator, ATA-2022H high-voltage amplifier, host computer, environmental test chamber, digital multimeter, XDR diffractometer, temperature controller, etc.

Figure 1-1: Schematic Diagram of the Testing System

Experimental Procedure: A sinusoidal signal is fed into the ATA-2021H high-voltage amplifier for voltage amplification. The ATA-2021H signal amplifier has a working frequency range from DC to 1 MHz, a maximum output voltage of 200 Vpp, a maximum output current of 500 mA, and a slew rate of ≥445 V/μs. The amplified excitation signal passes through a digital multimeter to measure the current. The GZ-ESPEC MC-710P environmental test chamber provides the required ambient temperature. The sample, clamped in a fixture, is placed in the MC-710P high-low temperature chamber. The sample fixture adopts the Kelvin four-probe method, and the environmental test chamber operates within a temperature range of -55°C to 145°C. The temperature control of the high-low temperature chamber is manual. Due to the lag between the actual sample temperature and the displayed temperature of the chamber, which does not accurately reflect real-time temperature changes, a PT100 temperature sensor is placed close to the sample and connected to an AI-8080P temperature controller to obtain precise temperature values. The temperature data is then recorded by a computer.

Recommended Voltage Amplifier: ATA-2021B

Figure: ATA-2021B High-Voltage Amplifier Specifications

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