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激光干涉测长仪是通过记录干涉条纹数转化为长度量,并打印出测量结果的。通常用专用计算机来解决,这里阐述我们用微型计算打印机(VOESA 1871PD)经简单改装,附加一中间接口,解决激光干涉测长技术中的有理化工作,造价低,并且能达到与专用机同样的效果。一、概述该测长仪是用He-Ne激光波长为标准进行长度计量的。He-Ne激光(λ=633nm)扩速后,经分光镜分为透射及反射两束光:其
Laser interferometer length measuring instrument is to record the number of interference fringes into a long amount, and print out the measurement results. Usually using a dedicated computer to solve, here we describe the use of micro-computing printer (VOESA 1871PD) by simple conversion, add an intermediate interface to solve the laser interferometry length measurement of rationalization work, low cost, and can reach the same with the special machine effect. I. Overview The length measuring instrument uses He-Ne laser wavelength as the standard length measurement. After He-Ne laser (λ = 633nm) is expanded, it is divided into two beams transmitted and reflected by the beam splitter: its