Title :
A Spatial Encoding Method for Improving the Resolution and Reliability of Laser Interferometers
Author :
Hagiwara, N. ; Nishitani, Y. ; Yanase, M. ; Saegusa, T.
Author_Institution :
The National Defense Academy
Abstract :
A method of improving the resolution and reliability of a laser interferometer which is used for measuring displacement is proposed. By giving code numbers to the divided segments of the interference fringe interval, the theoretical resolution is improved up to 1/170 of the light wave length. As the error caused by environmental noise is not integrated, the reliability is improved.
Conference_Titel :
Precision Electromagnetic Measurements, 1988. CPEM 88 Digest. 1988 Conference on
Conference_Location :
Ibaraki, Japan
DOI :
10.1109/CPEM.1988.671273