Application Cases

【Overview】
In this study, the Aigtek ATA-2161 high-voltage amplifier was used to build a flexible piezoelectric robot testing system. In recent years, with the advancement of smart materials and flexible electronics technology, piezoelectric materials have been widely applied in self-powered sensors, actuators, acoustic devices, vibration control, and other fields due to their unique electromechanical coupling characteristics. In particular, flexible piezoelectric materials, with their advantages of light weight, flexibility, and fast response, can be used to fabricate soft robots. These robots typically have simple structures and can generate large deformations. Their soft bodies provide excellent environmental adaptability, enabling them to cope with various complex terrains.

Experiment Name: Fabrication and Driving Performance Evaluation Experiment of an Octopus-Inspired Biomimetic Photoresponsive Piezoelectric Robot

Experiment Principle:
The structural design of the biomimetic flexible piezoelectric robot requires finite element analysis to examine its resonance modes and resonant responses. Based on the analysis results, the robot's structure is optimized to enhance its driving performance. However, due to fabrication processes, manufacturing errors, and environmental factors, the actual driving performance of the fabricated robot may deviate from the simulation results. Therefore, experimental testing is essential to validate the simulation results and ensure the stability and reliability of the robot in practical applications.

Experimental Block Diagram:

Experimental Setup Photos:

Experimental Procedure:
First, a robot performance testing platform was built. The biomimetic flexible piezoelectric robot prototype was placed on test substrates with different friction coefficients. A waveform generator was used to output excitation signals with varying frequencies, voltages, and waveforms. After amplification by the high-voltage amplifier, the signals drove the robot's motion. To characterize the robot's high-frequency (200 Hz) and small-amplitude motion characteristics, a high-speed camera paired with a flicker-free light source was used to capture its motion trajectories and gait details. Computer image processing software was then used to analyze the acquired image sequences, quantifying the robot's vibration amplitude and motion speed under different driving conditions. The robot's motion capabilities in complex scenarios such as slopes and under load were also tested. Finally, the driving performance and motion mechanisms were validated by comparing with simulation data.

Application Fields:
Wearable medical monitoring, flexible electronics and smart sensing, soft robotics, aerospace

Application Scenarios:
Flexible piezoelectric materials, PVDF composite films, piezoelectric sensors, photodetectors, piezotronic effect, biomimetic robotics, flexible piezoelectric robots, octopus-inspired biomimetics, soft actuation, self-powered sensing, environment-adaptive robots

Advantages of Aigtek Amplifiers in This Application:

1. Wide bandwidth and high-frequency response – Precisely drives high-frequency, small-amplitude motion, matching the robot's resonance modes.

2. High voltage output capability – Generates a sufficiently strong electric field to drive the piezoelectric material to produce significant deformation.

3. Low distortion and high output stability – Ensures the pure reproduction of different driving waveforms (sine, square, triangular waves).

Recommended Product: ATA-2000 Series High-Voltage Amplifier

ATA-2000 Series High-Voltage Amplifier Specifications
Figure: Specifications of the ATA-2000 Series High-Voltage Amplifier