Accession Number:

ADA064395

Title:

Gyroscope Error Model Investigation for the Sperry SLIC-15 Ring Laser Gyroscope.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

73.0

Abstract:

Power spectral density measurements from .001 to 8.33 Hz are made of the output noise of the SLG-15 laser gyroscope used in the SLIC-15 IMU manufactured by Sperry Gyroscope Company. A detailed discussion of the operation of the SLG-15 laser gyro is presented along with a description of its optical dither mechanism. The digital output of the gyroscope is analyzed using correlation techniques to characterize the noise. A description of the analysis technique and the test station used for the measurements is given along with representative samples of the output noise. Particular attention is paid to the effect of the dither mechanism on the output power density spectrum. The tests show that the low frequency noise due to dither is a characteristic of the dither mechanism and not a characteristic of a particular SLG-15 laser gyro. Based on the test data a linear low frequency model is constructed for both the dithered and undithered case. Author

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE