Accession Number : AD0922191

Title :   AN/MSG-3A Optical Slip Ring Assembly.

Descriptive Note : Final rept. Aug 73-Jan 74,

Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA

Personal Author(s) : Iverson, Myren L.

Report Date : AUG 1974

Pagination or Media Count : 20

Abstract : An optical slip ring assembly was developed to transfer data, but not power, on any gimballed mount, such as radars, launches, or guns. The data, analog or digital, modulates the light from light-emitting diodes. The resulting optical signal is transferred across an air gap between the stationary and rotating portions of the mount. Such a system eliminates ground loop and RF noise, and, because there are no mechanical contacts, the problems inherent in mechanical slip rings. A two-cahnnel system was demonstrated on an AN/MSG-3A radar, and an analog channel capable of a video transmission of 10 megahertz was also demonstrated. Two alternate schemes for optical coupling are also discussed. (Author)

Descriptors :   (*SLIP RINGS, OPTICAL EQUIPMENT), (*GIMBALS, LIGHT TRANSMISSION), (*PERISCOPES, DATA LINKS), (*COUPLERS, OPTICAL DATA), BROADBAND, RADAR EQUIPMENT, TELEVISION CAMERAS, SIGNALS, TELEVISION SYSTEMS, ROTATION, FIBER OPTICS TRANSMISSION LINES, COUPLINGS, EFFICIENCY, ISOLATION, CROSSTALK.

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE