发明名称 INTERFEROMETER SYSTEMS
摘要 PCT No. PCT/GB79/00006 Sec. 371 Date Sep. 13, 1979 Sec. 102(e) Date Aug. 9, 1979 PCT Filed Jan. 11, 1979 PCT Pub. No. WO79/00506 PCT Pub. Date Aug. 9, 1979.In a Michelson interferometer system arranged to give four output interferograms, two at each orthogonal direction of polarization, the reflection and transmission coefficients of the interferometer beam splitter (10) at the two polarization directions are chosen so that the ratios of the a.c. component to the d.c. component are equal in three of the interferograms. Difference signals derived from the three interferograms are suitable for use with an automatic, reversible, fringe counting system.
申请公布号 DE2963043(D1) 申请公布日期 1982.07.29
申请号 DE19792963043 申请日期 1979.01.11
申请人 NATIONAL RESEARCH DEVELOPMENT CORPORATION 发明人 DOWNS, MICHAEL, JOHN;RAINE, KENNETH, WILLIAM
分类号 G01B9/02;(IPC1-7):G01B9/02;G02B27/10 主分类号 G01B9/02
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