Application Cases

Experiment Name: Deformation Control Experiment of Self-Sensing Actuation System

Test Purpose: This paper presents a theoretical analysis of a self-sensing piezoelectric cantilever beam system, hysteresis compensation, modeling of a self-sensing actuation system, and controller design. It addresses the inherent nonlinear hysteresis problem of the cantilever beam system, establishes a self-sensing piezoelectric cantilever beam system, designs a PID deformation controller based on the C-PSO algorithm, and conducts a series of comparative experiments and simulation analyses in MATLAB software. This chapter introduces the experimental system and the hardware platform built to further verify the control effect of the self-sensing cantilever beam system.

Testing Equipment: Voltage amplifier, NI data acquisition card, laser displacement sensor, driver and sensor of the cantilever beam system, etc.

Figure 1: Block Diagram of the Experimental System

Experiment Process:

Design a self-sensing piezoelectric cantilever beam control system, build a hardware platform for the system, and then build a software platform by combining MATLAB and LabVIEW software. MATLAB has powerful data computing capabilities and integrates data processing toolkits from various fields, providing a variety of control algorithm functions, and plays a crucial role in data processing and system simulation. LabVIEW uses the graphical programming language G and has advantages in graphical interface development, signal measurement, loop processing, and software and hardware communication. In this experiment, LabVIEW serves as a data acquisition platform and a human-computer interaction platform, which can collect experimental data to provide for system identification, data analysis, and optimization of controller parameters in MATLAB, and design controllers suitable for this system. Therefore, the joint programming technology of MATLAB and LabVIEW is used to achieve complementary advantages of the two.

Experimental Results:

The experiment includes two parts: experimental system design and experimental result verification. The experimental design includes the design of hardware and software systems. Select experimental hardware equipment and build a hardware platform; on the software side, use LabVIEW software to implement the panel and block diagram design of the acquisition module, hysteresis compensation module, and self-sensing deformation controller module; use MATLAB software for PID controller parameter optimization and design the part of PID parameters optimized by the C-PSO algorithm. The collaboration between LabVIEW and MATLAB designs a self-sensing deformation control system with fast response, short adjustment time, and no overshoot.

Voltage Amplifier Recommendation: ATA-2081

Figure: Specification Parameters of the ATA-2081 High-Voltage Amplifier

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