Accession Number:

ADA133343

Title:

Optical Fiber Lightguide Sensing for Gimbal Pickoffs.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY MISSILE COMMAND REDSTONE ARSENAL AL GUIDANCE AND CONTROL DIRECTORATE

Personal Author(s):

Report Date:

1983-06-01

Pagination or Media Count:

14.0

Abstract:

The application of optical fiber lightguides in gimbal pickoffs is under study by the U.S. Army Missile Command. Laser diodes or light-emitting diodes, optical fibers, and solid-state light detectors can save space and weight in inertial-guidance systems for missiles and projectiles. Because they are non-contacting and have no moving parts, optical components are free of friction, gimbal-wiring, slip ring torques, potentiometer-wiper lift-off during flight, and noise. The sensors and optical fibers may also reduce manufacturing costs. The study recommends that the concept use the pulse-duration-modulation design as an inner-gimbal wide-angle position sensor, described in the authors earlier report, T-79-81, AD-A076 372. For the outer gimbal, the light intensity concept, as described in this report, is proposed as a wide-angle position sensor. This concept provides a linear range of or - 35 degrees with a nonlinear repeatable range up to or - 90 degrees. Author

Subject Categories:

  • Machinery and Tools
  • Optical Detection and Detectors
  • Air Navigation and Guidance
  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE