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〔本刊訉〕三米激光测长机鉴定会议于今年2月8—15日在贵阳召开.贵州省机械局受一机部委托主持了这次会议.新添光学仪器研究所研制成功的这种激光测长机是光学、机械和电子技术相结合的现代化精密计量仪器;是国内激光技术应用方面的一个新发展.由于采用了双频激光干涉系统,该测长机适于在现场和实验室条件下作相应的高精度精密测量.光学系统除了采用光学移相法以获得较之移相电路更为稳定可靠的位相差为90°的两路信号外,光路中考虑了偏振光在反射过程中偏振特性的改变,以提高光学信号的质量.
〔〕 本 〔〕 three-meter laser length measuring machine identification meeting February 8-15 this year held in Guiyang.Guizhou Province Bureau of Machinery by a commissioned by the Ministry of Machinery presided over the meeting.New Institute of Optical Instrument developed this Laser length measuring machine is a combination of optical, mechanical and electronic technology of modern precision measuring instruments; It is a new development of the domestic laser technology. Due to the dual-frequency laser interferometry system, the length measuring machine is suitable for on-site and experimental Room conditions for the corresponding high-precision precision measurement.In addition to the optical system optical phase shift method to get more stable and reliable than the phase shift circuit phase difference of 90 ° two signals, the optical path of the polarized light in the reflection Polarization characteristics of the process change, in order to improve the optical signal quality.