【摘要】 介绍由CCD摄象机和微机图象自动处理系统组成的指针式压力表自动判读系统的构成、计算原理及其处理软件。该系统曾对6台压力表进行表盘自动判读,系统误差不超过±0.12％,对于其它指针式仪表的示值判断具有参考价值。更多还原

【Abstract】 The composition of an automatic reading judgement system for pressure gauge with pointer is described. This system is composed of a CCD camera and a microcomputer-based automatic image processing system. The calculation principle and the processing software are also presented. The system has been tested on automatic panel reading judgement for six sets of pressure gauges, the systematical error is within +/-0.12%. It is also valuable on reference for indication judgement of other pointing instruments.更多还原