Application Cases

Experiment Name: Application of Power Amplifiers in Gravity-Assisted Z-Degree-of-Freedom Piezoelectric Inertial Bidirectional Smooth Drive Research

Research Direction: Precision Drive and Positioning

Experimental Content:
Tested its frequency characteristics, horizontal load characteristics, displacement curves, voltage characteristics, resolution, and its application in microscopic imaging.

Test Objectives:
To investigate whether the output characteristics of the developed prototype can achieve the expected results, and to explore its application effectiveness in metallographic and biological microscopic imaging.

Test Equipment:
Aigtek ATA-3080 Power Amplifier

Experimental Procedure:
An experimental system was set up to study the output characteristics, as shown in the left figure. The waveform was generated by a signal generator (RIGOL, DG4162) and amplified by a power amplifier (Aigtek, ATA-3080), which then excited the driver. A laser sensor (KEYENCE, LKH020) measured speed and displacement, and the experimental data was transmitted to a computer. The travel range of optical microscopes (OM) is generally on the order of tens of millimeters. The developed prototype offers advantages such as long travel range, high resolution, and self-locking, making it a promising solution for automated optical microscope imaging.

The configured optical microscope system is shown in the right figure. The microscope was adhered to the mover using adhesive. A laser sensor was mounted on a three-dimensional precision stage and focused on the end of the microscope to measure its motion. The optical microscope system was used for biological and metallographic microscopic imaging. Simultaneously, data was transmitted to electronic equipment.

Test Results:
Even under a load thrust equivalent to the self-weight of the moving object (1.35 N, exceeding 3.3 times the current workload), the bidirectional displacement linear fitting correlation coefficient R² reached 0.9999 with gravity assistance. The maximum forward speed and resolution reached 304.73 mm/s and 5.3 nm, respectively. This novel design concept is particularly suitable for Z-degree-of-freedom drive and has been successfully applied to microscopic imaging.

Recommended Power Amplifier:ATA-3080C

Figure: ATA-3080C Power Amplifier Specifications