Application Cases

【Overview】
In 2025, a research team from Xi'an Jiaotong University published a paper titled "High-Performance Mn-Doped BiScO₃–PbTiO₃ Piezoelectric Ceramics: Enhanced Thermal Stability and Electric Field Resistance". In their study, the Aigtek ATA-7030 high-voltage amplifier was used to build high-temperature and high-electric-field experimental systems. To meet the application requirements of piezoelectric materials under extreme conditions, this research systematically evaluated the performance of hard-type Mn-doped 34BiScO₃-66PbTiO₃ (BS-66PT-1Mn), soft-type Nb-doped 36BiScO₃-64PbTiO₃ (BS-64PT-0.125Nb), and commercial PZT-5A ceramics under high-temperature and high-electric-field conditions. The dielectric performance characterization results showed that BS-66PT-1Mn exhibited良好的 (良好的, good) dielectric performance under the coupled conditions of high temperature (300 °C) and high electric field (100 V/mm).

Experiment Name: Vibration Velocity Testing of High-Temperature Piezoelectric Ceramics Under Multi-Field Coupling

Research Direction: High-field testing of high-temperature piezoelectric ceramics and their application in high-temperature transducers

Experimental Content:
Vibration velocity testing of high-temperature piezoelectric ceramics under high temperature and high electric field. The excitation signal was generated by a PSM3750 frequency response analyzer, amplified by the ATA-7030 high-voltage amplifier, and applied to the sample. Constant-voltage frequency sweep signals were output using the frequency response analyzer's software, while vibration velocity was measured and signals were acquired using a laser vibrometer.

Testing Equipment:
Impedance analyzer, computer, ATA-7030 high-voltage amplifier, laser vibrometer, high-temperature furnace, fixture, and piezoelectric ceramic samples.

Experimental Procedure:
The test system mainly consisted of an impedance analyzer (with a built-in signal source), a high-voltage amplifier, a laser Doppler vibrometer, a high-temperature furnace, and a computer control system with software. The sample was placed in a high-temperature furnace, and the temperature was controlled programmatically with a thermocouple placed close to the sample to ensure accurate temperature measurement. During testing, the computer control software sent a command, triggering the impedance analyzer to generate a frequency-swept sinusoidal signal. The signal was amplified by the high-voltage amplifier and applied to the sample, causing it to vibrate. During vibration, the laser Doppler vibrometer monitored the vibration velocity. The test results were acquired by the impedance analyzer's software and fed back to the computer for final processing using the vibrometer software. The test system is shown in the figure below.

Figure: Schematic Diagram of the Experimental Test System

Experimental Results:

Figure: Experimental Results

BS-66PT-1Mn exhibited high vibration velocity and low frequency  shift, maintaining a high vibration velocity even at 300°C. Under conditions of 200°C and 20 V/mm, the performance of BS-66PT-1Mn was significantly better than that of the traditional commercial PZT-5A piezoelectric material and the BS-PT-0.125Nb piezoelectric material. These experimental results provide effective theoretical support and guidance for the selection of piezoelectric materials and the design of devices for high-temperature piezoelectric transducers.

Advantages of Aigtek Amplifiers in This Application:

1. 6 kVp-p ultra-high voltage output – Generates the high-strength electric field necessary to drive piezoelectric materials.

2. Precise low-frequency sweep response the resonance characteristic testing of piezoelectric materials.

3. High stability and four-quadrant drive capability – Ensures data reliability under multi-field coupling extreme environments.

Recommended Product: ATA-7030 High-Voltage Amplifier

Figure: ATA-7030 High-Voltage Amplifier Specifications and Parameters