Multimode fiber optic rotation sensor with low-cost digital signal processing

Dean R. Johnson; Ronald J. Fredricks; S. C. Vuong; David T. Dembinski; Sehbaz H. Sabri

doi:10.1117/12.24737

1 February 1991 Multimode fiber optic rotation sensor with low-cost digital signal processing

Dean R. Johnson, Ronald J. Fredricks, S. C. Vuong, David T. Dembinski, Sehbaz H. Sabri

Proceedings Volume 1367, Fiber Optic and Laser Sensors VIII; (1991) https://doi.org/10.1117/12.24737
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

Digital signal processing schemes which provide amplitude and phase tracking of PZT modulation harmonics in a fiber optic rotation rate sensor are presented. The estimation algorithm implementations are designed to be extremely low cost, yet sufficiently accurate and responsive to be compatible with a multimode fiber optic rotation rate sensor (FORS). A digital detector board, featuring a digital signal processor and simple 13-bit data conversion circuitry is utilized, along with an electronic FORS simulator and an external PC to provide the data acquisition and digital signal processing for the detection schemes. It is also demonstrated how false rate signals induced by PZT amplitude modulation instabilities in the multimode FORS may be eliminated in the signal processing.

Citation Download Citation

Dean R. Johnson, Ronald J. Fredricks, S. C. Vuong, David T. Dembinski, and Sehbaz H. Sabri "Multimode fiber optic rotation sensor with low-cost digital signal processing", Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); https://doi.org/10.1117/12.24737

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available