关键词: 直线超声波电动机, STM32微处理器, AD7606, LabVIEW, 速度测试

Abstract: Aiming at the problems of high development cost, low test accuracy and difficult expansion of the existing linear ultrasonic motor speed test system, a low-cost linear ultrasonic motor speed test system was developed. The test system was mainly composed of acquisition module and data processing module. The acquisition module mainly included displacement sensor and AD7606 analog-to-digital conversion module, and the data processing module is composed of upper computer and lower computer. The lower computer used STM32 microprocessor to control the analog-to-digital conversion chip to complete the acquisition of displacement sensor signals, and sended them to the upper computer through serial port. The upper computer used LabVIEW software to complete the data processing. The system was used to test the columnar linear motor, and the results show that the system runs stably and has high measurement accuracy. Compared with the traditional linear ultrasonic motor test speed system, the test system has the characteristics of low cost and easy expansion.

Key words: linear ultrasonic motor, STM32 microprocessor, AD7606, LabVIEW, speed test