双缝光幕靶的靶距精确测量方法和装置

为了解决小靶距双缝光幕靶靶距精确测量问题,提出了一种利用螺纹测长原理及光电转换方式相结合的测距新方案.文中详细介绍了双缝光幕靶及靶距测量装置的结构以及测量靶距的方法.随后对双缝光幕靶靶距进行了测试并进行了测速精度分析.结果表明双缝光幕靶的相对测速精度达到0.1%,该测量精度满足测速要求.

Method and Device of Accurate Measuring Distance Between Bi-slit Light Screens

In order to measure the distance of light screens with bi-slit accurately,a method based on the measuring distance with screw thread combined with opto-electronic device circuit is proposed.The structure and circuits associated with light screen of bi-slit are discussed in details such as the set-up of distance between two light screen,the opto-electronic converter circuit and the principle of measurement.The experiment results show that the accuracy of velocity is 0.1% with the method and the set-up of bi-slit light screen can be used in the measurement of in velocity.