ELECTROMAGNETIC ANGULAR ROTATION SENSING.
Abstract
Ring-laser biasing studies were conducted using a solid, as well as a liquid and gaseous, Fizeau effect. Primary emphasis was devoted to the Faraday technique using quartz retardation plates coupled with a solid and liquid medium. Fresnel losses are minimized by MDL coatings and liquid-immersion techniques. The 4-meter and 80-cm ring lasers (1.153 microns) are still in operation, with the former primarily used for the biasing studies and the latter for stability measurements. Based on the successful 3- and 4-meter visible ring lasers, an 8-meter visible ring was built and is operating. This ring is designed to be tilted (rather than having its support rotate) so as to vary the component of the earth's rotation rate. It will be employed for mode interaction studies and for further study of back-scatter and the nonlinear region of oscillation. The optical quality of the ringlaser designs were reviewed. A new technique for sensing rotation direction without recourse to biasing was demonstrated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1963
- Accession Number
- AD0426349
Entities
People
- Dustin Davis
- R. Kroeger
- R. Schneider
- Rebecca J. Salamon
- W. Macek
Organizations
- Sperry Corporation