转轴角加速度测量及其USB数据采集

Angular Acceleration Measurement System and Its USB Data Acquisition

转轴角加速度是旋转机构转动时的一项重要参数,旋转体的角加速度在实践中有着广泛和重要的应用。对角加速度的测量原理、方法进行了研究,寻求一种高精度连续测量角加速度可行的方法。设计了基于AT09S8515单片机和PDIUSBD12接口控制器件的USB数据采集设备。利用的单片机AT09S8515具有自动捕获信号上升或下降沿的功能,为转速信号的周期测量提供了方便。

The angular acceleration of a rotary shaft is one of the most important parameters for revolution which is widely employed in practical applications. The principles and approaches for measuring angular mechanism, acceleration were studied to find a feasible way to obtain the accurate and successive value of angular acceleration. A new type of data acquisition device with USB module was developed based on microcontroller AT09S8515 and USB interface controlling IC PDIUSBD12. It was convenient to test the width of rotary speed signal by using the unique function of the microcon-troller for automatically capturing the rising or falling edge of a square wave.