Design Considerations for an Incoherent Fiber Optic Gyroscope.

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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 LEDs 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

Author(s):
Ice, Richard L.
Author Organization(s):
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
Descriptive Note:
Master's thesis,
Pagination:
0148

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFIT/GE/EE/81D-29
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.3.3_Develop Strategy; JCA_1.3.2_Personnel Management; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned; JCA_5.5.2_Task; JCA_5.5_Direct
Modernization Areas:
Quantum Science and Computing; Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*Fiber optics, Gyroscopes, Acoustooptics, Signal processing, Incoherent scattering, Laser beams, Light emitting diodes, Rotation, Theses
Field(s)/Group(s):
Lasers and Masers, Fiber Optics and Integrated Optics
Keyword(s):
*Fiber optic gyroscope
Report Date:
1981 Dec 01