Faraday Effect Sensors: The State Of The Art

G. W. Day; A H. Rose

doi:10.1117/12.948837

1 February 1989 Faraday Effect Sensors: The State Of The Art

G. W. Day, A H. Rose

Proceedings Volume 0985, Fiber Optic and Laser Sensors VI; (1989) https://doi.org/10.1117/12.948837
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

The Faraday effect is becoming widely used as an optical method of measuring electric cur-rent or magnetic field. It is particularly advantageous where the measurements must be made at high voltage or in the presence of electromagnetic interference, and where, speed or stability are considerations. In this paper we review the development of the technology over the last twenty years, with an emphasis on the basic principles, design considerations, and performance capabilities of sensors that represent the latest achievements. Faraday effect current sensors are now used routinely in the measurement of large current pulses, and are starting to become available for ac current measurements in the power industry. Recent developments include their extension to the measurement of currents in the milliampere range and substantial reductions in size. Similar devices, in slightly different configurations, can be used for magnetic field measurements. Further improvements, based on new fiber types and new materials, are projected.

Citation Download Citation

G. W. Day and A H. Rose "Faraday Effect Sensors: The State Of The Art", Proc. SPIE 0985, Fiber Optic and Laser Sensors VI, (1 February 1989); https://doi.org/10.1117/12.948837

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