Recent developments in fiber optic magnetostrictive sensors

Frank Bucholtz; Dominique M. Dagenais; Kee Pun Koo; Sandeep T. Vohra

doi:10.1117/12.24751

1 February 1991 Recent developments in fiber optic magnetostrictive sensors

Frank Bucholtz, Dominique M. Dagenais, Kee Pun Koo, Sandeep T. Vohra

Proceedings Volume 1367, Fiber Optic and Laser Sensors VIII; (1991) https://doi.org/10.1117/12.24751
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

We review developments over the past five years in fiber optic magnetometry based on magnetostriction. Recent work has demonstrated detection of magnetic fields from dc to over 1 MHz with resolution of 10 pT P1Hz at 1 .0 Hz and 0.07 pTpIHz at35 kHz in laboratory devices. We present the basic device operating principles and discuss factors which limit the resolution of fiber optic interferometric magnetic sensors. Results are presented for a number of configurations including a ruggedized, compact, three-axis magnetometer for dc and low-frequency measurements, a single-axis gradiometer, a single-axis heterodyne configuration for narrowband detection of fields in the frequency range 0.01 Hz to 1 MHz, and a magnetostrictive oscillator which exhibits period doubling bifurcations and chaos.

Citation Download Citation

Frank Bucholtz, Dominique M. Dagenais, Kee Pun Koo, and Sandeep T. Vohra "Recent developments in fiber optic magnetostrictive sensors", Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); https://doi.org/10.1117/12.24751

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