多功能线纹尺自动测量装置研制  

Develop auto test instrument for multi-function line scales

作　　者：张勇[1] 潘嘉声[1] 黄稣[1] 卫作之[1] 陈伟琪[1] 

机构地区：[1]广东省计量科学研究院,广东广州510405

出　　处：《中国测试》2010年第5期48-51,共4页China Measurement & Test

基　　金：国家质检总局项目(2007KQ236)

摘　　要：针对目前标准钢卷尺、铟瓦水准标尺、数字水准仪条码尺测量过程中遇到的问题,基于激光干涉测长和图像处理技术对线纹间隔进行测量的原理,研制开发出了多功能线纹尺自动测量装置。探讨了数字水准仪条码尺的解码机理,分析了条码尺的编码图,对各公司生产的条码尺给出了校准方法,评估了整套装置的测量不确定度。实践证明,该装置能对多种高准确度的线纹计量器具进行有效检测。At present,there are many difficulties in calibrating standard steel tapes,invar level rods,and digital level bar code rods.On the basis of length measurement by laser interference and image process technology,the auto test instrument has been developed for multi-function line scales through measuring the scale interval.The decode mechanism for digital level bar code rods and its coding chart were analyzed.The calibration method was established for all types of bar code rods calibrated with this instrument,and the measurement uncertainty was also evaluated.As well,the high class line scale can also be tested reliably with this instrument.

关 键 词：线纹尺 图像处理 数字水准仪 条码尺 自动测量 

分 类 号：TH821[机械工程—仪器科学与技术]