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The Application of the ATA-3080C Power Amplifier in High-Power Piezoelectric Material Systems

Author:Aigtek Number:0 Date:2025-08-28

Experiment Name: Testing the Performance Metrics of Piezoelectric Materials Under High-Power Excitation

Research Direction: Characterization of High-Power Performance Parameters of Piezoelectric Materials

Experiment Objective: This experiment aims to investigate the performance changes of PMN-PT single crystals with different PT contents under high-power excitation scenarios and assess their potential applications in high-power sensors and transducers. By using a constant voltage testing system, key performance data of the materials are obtained to guide the optimization of piezoelectric material design.

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. The experiment targets PMN-PT single crystals with Pt contents of 26%, 29%, and 33%, examining the changes in piezoelectric coefficient, electromechanical coupling coefficient, mechanical quality factor, and compliance coefficient under high-power excitation. The impact of PT content on material performance is analyzed.

Testing Equipment: Signal generator: Tektronix AFG-1022, Power amplifier: Aigtek ATA-3080, Impedance analyzer: Keysight-4294A, Data acquisition card, PC, Voltage probe, and Current probe, etc.

Experiment Process: A frequency-sweeping signal is generated by the signal generator. The signal is amplified by the ATA-3080 power amplifier and applied to the PMN-PT single crystal samples. The current and voltage of the samples under different power excitations are recorded to generate impedance curves. Characteristic frequencies are extracted, and key material parameters, including piezoelectric coefficient, electromechanical coupling coefficient, and mechanical quality factor, are calculated. Differences in performance between single crystals with different Pt contents are compared.

Application of the ATA-3080C Power Amplifier in High-Power Piezoelectric Material Systems

Test Results: The results show that for 26% PT content: the piezoelectric coefficient increases by 25%, the compliance coefficient increases by 12%, the electromechanical coupling coefficient increases by 17%, and the mechanical quality factor decreases by 73%. For 29% PT content: the piezoelectric coefficient increases by 33%, the compliance coefficient increases by 20%, the electromechanical coupling coefficient increases by 21%, and the mechanical quality factor decreases by 78%. For 33% PT content: the piezoelectric coefficient increases by 20%, the compliance coefficient increases by 30%, the electromechanical coupling coefficient increases by 20%, and the mechanical quality factor decreases by 55%. The results indicate that an increase in PT content significantly affects material performance, showing marked temperature sensitivity and depolarization under high-power excitation.

Test Results

Role of Aigtek Power Amplifier in the Experiment:

The Aigtek power amplifier (ATA-3080) amplifies the low-power signal from the signal generator to high power, ensuring that the PMN-PT single crystals can operate under the high electric field strength required for the experiment. The amplifier provides high-precision output signals, ensuring the reliability and repeatability of the test data. It supports a wide frequency range of input and amplification, meeting the experimental needs from low to high frequencies. Built-in overload and overheat protection functions safeguard the safety of the experimental equipment.

Power Amplifier Recommendation: ATA-3080C Power Amplifier

Specifications of the ATA-3080C Power Amplifier

Figure: Specifications of the ATA-3080C Power Amplifier

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