轮胎动态实验台往复运动位移自动测控系统

往复运动位移的自动测控系统是轮胎动态实验台的核心部分，它直接影响实验台的性能。本文提出一种由磁致伸缩线性位移传感器、MAX195A/D转换器和AT89C52单片机组成的往复位移自动测控系统。现场使用和实验表明，该系统的测量误差小于1mm，具有测量精高、可靠性好和环境适应性强等优点。  The Automatic Measurement and Control System of Dynamic Tire Laboratory Bench Reciprocating motion Displacement

Li Xiantao1,2 Zhao Jiyin1 Gai Shuang1 Li Xilin1

(1.Jilin University, Communication Engineer School, Changchun, 130025;2.Dongfeng Design Institute, Wuhan,430056）

Abstract: The automatic measurement and control system of reciprocating motion displacement is the key part of the dynamic tire test laboratory bench. It influences the test performance of the laboratory bench directly. The paper proposes an automatic measurement and control system of reciprocating motion composed by the magnetostrictive linear displacement sensor,、MAX195 A/D converter and the MCU AT89C52. Through experiment and several months spot application, the measuring error of this system is smaller than 1mm, and the system showed its advantage of high precision, good reliability and good dependability.

Key words: Dynamic Tire Laboratory Bench; Reciprocating Motion Displacement; Magnetostrictive Displacement Sensor; Automatic Measuring System