Laser Sensing Of Electric And Magnetic Fields For Power Transmission Applications

G. A. Massey; J. C. Johnson; D. C. Erickson

doi:10.1117/12.955019

22 October 1976 Laser Sensing Of Electric And Magnetic Fields For Power Transmission Applications

G. A. Massey, J. C. Johnson, D. C. Erickson

Proceedings Volume 0088, Polarized Light: Instruments, Devices, Applications; (1976) https://doi.org/10.1117/12.955019
Event: 20th Annual Technical Symposium, 1976, San Diego, United States

Abstract

Polarization modulation of light from a 633 nm He-Ne laser, using the Pockels and Faraday effects in appropriate materials, can serve as an electrometer and magnetometer with sensitivities to 0.06 volt/cm and 0.03 gauss or better. With the sensor material placed in the field and the laser illuminator and receiver mounted remotely, this technique can be used for precise, wideband measurement of transient effects and power flow in substation environments where high fields prohibit direct measurements. This paper describes the performance of these devices used in prototype systems for voltage transient monitoring and also for precise voltage and current metering. The latter system requires thermal sensing as well, with an accuracy of 0.1°C; optical methods for accomplishing this will be described.

Citation Download Citation

G. A. Massey, J. C. Johnson, and D. C. Erickson "Laser Sensing Of Electric And Magnetic Fields For Power Transmission Applications", Proc. SPIE 0088, Polarized Light: Instruments, Devices, Applications, (22 October 1976); https://doi.org/10.1117/12.955019

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