公开(公告)号：US06946648B2

公开(公告)日：2005-09-20

申请号：US10403990

申请日：2003-03-31

申请人： Surjit Singh Ahluwalia

发明人： Surjit Singh Ahluwalia

IPC分类号： G01D5/245 ,  G01D5/247 ,  G01D5/34

CPC分类号： G01D5/247

摘要： A system for accurately sensing/determining the position of an uniformly rotating shaft characterized in using a single marker in tandem with a high frequency signal, said system comprising a shaft mounted with a disc having a single marker, an opto-electronic device placed in front of the disc for generating a “marker signal” for every rotation of the disc, a means for producing a high frequency signal for sampling/slicing/slotting the time period between two consecutive marker signals, input terminals of a gating mechanism being connected to the opto-electronic device and the high frequency signal generator and an output terminal being connected to a counter such that the gating mechanism allows the high frequency signal to pass to the counter and said counter being configured for counting the number of pulses in the high frequency signal, a D/A converter connected to an output of the counter for converting the number of pulses counted into an analog signal and optionally, a display mechanism for displaying the analog signal in terms of the angle through which the shaft has rotated.

摘要翻译： 一种用于精确地感测/确定均匀旋转轴的位置的系统，其特征在于使用与高频信号串联的单个标记，所述系统包括安装有具有单个标记的盘的轴，放置在前面的光电装置 ，用于产生用于盘的每次旋转的“标记信号”的装置，用于产生用于对两个连续标记信号之间的时间段进行采样/分片/切换的高频信号的装置，门控机构的输入端连接到 光电器件和高频信号发生器以及输出端子连接到计数器，使得门控机构允许高频信号传递到计数器，并且所述计数器被配置为对高频信号中的脉冲数进行计数 连接到计数器的输出的D / A转换器，用于将计数的脉冲数转换为模拟信号，以及可选地，显示 根据轴旋转的角度显示模拟信号的机构。