Accession Number : ADA115477

Title :   Design Considerations for an Incoherent Fiber Optic Gyroscope.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Ice,Richard L

PDF Url : ADA115477

Report Date : Dec 1981

Pagination or Media Count : 148

Abstract : The components required for the construction of an incoherent fiber optic gyroscope are tested. The instrument uses an incoherent light source such as an LED or diode laser operating below threshold. Five LED's and one laser diode were tested. An acousto-optic modulator is investigated as a signal processing element. Equations are developed showing the effects of incoherence on the minimum expected rotation rate that can be observed. A review of optical rotation sensing in general, and the related technology is presented. The polarization properties of the source and fiber are discussed as they relate to gyro stability and minimum rotation rate. Two possible signal processing techniques are presented which promise to further reduce minimum rotation rate and improve system stability. The requirements on components for the fabrication of an inertial grade gyro are summarized along with a discussion of component contributions to gyro error. (Author)

Descriptors :   *Fiber optics, Gyroscopes, Acoustooptics, Signal processing, Incoherent scattering, Laser beams, Light emitting diodes, Rotation, Theses

Subject Categories : Lasers and Masers
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE