Application Cases

Experimental Name: Gravity-Assisted Z-Axis Piezoelectric Inertial Bidirectional Smooth Actuation Research

Research Direction: Precision Actuation and Positioning

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

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

Experimental Equipment:
ATA-3080C power amplifier, signal generator, oscilloscope, laser sensor, etc.

Experimental Procedure:

Figure: Photograph of the Experimental System

An experimental system was set up to study the output characteristics, as shown in the figure above. The waveform was generated by a signal generator and amplified by a power amplifier (Aigtek, ATA-3080) before being applied to the actuator. The laser sensor measured speed and displacement, and the experimental data were transmitted to a computer. Optical microscopes (OM) typically have a travel range of several 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 figure on the right. The microscope was adhered to the mover using adhesive. The 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. Meanwhile, data were transmitted to electronic devices.

Experimental Results:

Figure: Experimental Results

Even when the self-weight of the moving object represented a load thrust equivalent to 1.35 N (exceeding 3.3 times the current work), the bidirectional displacement linear fitting correlation coefficient R² reached 0.9999 with gravity assistance. The maximum forward speed and resolution achieved were 304.73 mm/s and 5.3 nm, respectively. This novel design concept is particularly suitable for Z-axis actuation and has been successfully applied in microscopic imaging.

Recommended Power Amplifier: ATA-3080C Power Amplifier

Figure: ATA-3080C Power Amplifier Specifications and Parameters