Interferometric fiber-optic gyroscopes: a summary of progress

Author

Liu, R.Y. ; Adams, G.W.

Author_Institution

Honeywell Syst. & Center, Phoenix, AZ, USA

fYear

1990

fDate

20-23 Mar 1990

Firstpage

31

Lastpage

35

Abstract

An overview of both open-loop and closed-loop IFOG (interferometric fiber-optic gyroscope) technologies is presented. Error sources associated with short-term random noise and long-term bias stability have been identified and properly controlled. Current research activities are focused on improving both the dynamic range and the scale factor performance for inertial navigation applications. For low- and medium-performance requirements, IFOG technology is close to the production stage. Cost and packing issues are being addressed to bring the IFOG from a laboratory instrument to a product. Progress on an attitude and heading reference system (AHRS) open-loop IFOG and an inertial-grade, closed-loop IFOG is presented, and the prospects and applications of these newly emerging technologies are discussed

Keywords

closed loop systems; fibre optic sensors; gyroscopes; inertial navigation; light interferometry; stability; Sagnac effect; aircraft instrumentation; attitude control; closed-loop; heading reference system; inertial navigation; interferometric fiber-optic gyroscope; long-term bias stability; open-loop; short-term random noise; Costs; Dynamic range; Error correction; Gyroscopes; Inertial navigation; Instruments; Laboratories; Open loop systems; Production; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE

Conference_Location

Las Vegas, NV

Type

conf

DOI

10.1109/PLANS.1990.66153

Filename

66153