Solid optical current sensor

Details Solid optical current sensor Solid optical current sensor

1994-12-07

1996-12-10

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Using radiant energy

3242441, 359281, 359834, G01R 3100, G02B 504

Patent

active

055834280

ABSTRACT:
To increase the measuring sensitivity of a simple-to-manufacture, multi-faced solid optical current sensor, at least one of the light-reflecting lateral faces is displaced radially inward with respect to the remaining light-reflecting lateral faces and has a lesser minimum distance from a center of the solid optical current sensor than the other lateral faces. Because of this displacement, the incident light beam does not move through a closed polygonal progression in the course of a single circuit around a recess for a current conductor, whose current intensity is to be measured by means of the Faraday effect. Helically overlapping displacements of the light circuit paths are created, which cause an increase in light sensitivity. The lateral face or another lateral face can also be displaced outwardly instead of inwardly.

REFERENCES:
patent: 3424516 (1969-01-01), Snyder, III
patent: 4564754 (1986-01-01), Sato et al.
patent: 4608535 (1986-08-01), Tada et al.
patent: 4745357 (1988-05-01), Miller
patent: 4894608 (1990-01-01), Ulmer, Jr.
"Faraday effect optical current clamp using a bulk-glass sensing element", Y. N. Ning et al., Optics Letters, May 15, 1993, vol. 18, No. 10, pp. 835-837.
"Faseroptische Sensoren", Roland Stierlin, Optoelektronik, Bulletin SEV.VSE 82, (1991) 1.9. Jan., pp. 21-29.
"Miniature Faraday current sensor based on multiple critical angle reflections in a bulk-optical ring", Y. N. Ning et al, Optical Letters, vol. 16, No. 24, Dec. 15, 1991, pp. 1996-1998.
"Accurate Faraday effect current sensor", T. T. Yoshino et al., Advances in Optical Fiber Sensors, pp. 208-217, Oct., 1991.
"Magneto-optical current sensors constructed with ZF glass", S. T. Pai et al., Sensors and Actuators A.35 pp. 107-112, Jun., 1992.

Affiliated with

Also associated with

Rating

Solid optical current sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid optical current sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid optical current sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-426144