VIATT:一种用于角度传感器智能测试的虚拟仪器

VIATT:A Virtual Instrument for the Intelligent Testing of Angular Transducer

基于虚拟仪器的概念,利用单片机、步进电机及VB语言等技术将传感器测试平台、传感器输出信号采集及传感器静态特性分析相融合,改进并提出了基于Sigmond型函数的升降速特性曲线用于步进电机的驱动,以提高系统运行的平稳性。设计并制作了角度传感器智能测试虚拟仪器(VIATT)以对角度传感器的静态特征进行自动检测,实验测试结果表明,该VIATT能够对角度传感器特性进行自动化测试,可自动保存并输出线性度、迟滞和重复性等特性曲线,验证了本文设计的VIATT用于角度传感器性能测试的可行性,具有重要的工程实际应用价值。

Based on the concept of virtual instruments, this paper integrates the testing platform, output data acquisition and static character analysis of sensors by using the technologies of MCU, stepper motor and VB language and presents the method for improving the driving of a Sigmond function-based acceleration and deceleration curve to improve system running stability. It designs and makes the virtual instrument for intelligent testing of angular transducer （V1ATF） to automatically detect the static character. The experiment results indicate that VIATI＂ can automatically test the performances of angular sensors, and can also automatically output and save the characteristic curves such as the linearity, hyster~;sis and repeatability of the output, which verifies the feasibility of VIATF in testing performances of angular sensors, and it has significant values for engineering applications.