Title:
ELECTRIC FIELD SENSOR
Document Type and Number:
WIPO Patent Application WO/1995/002194
Kind Code:
A1
Abstract:
An electric field sensor comprising a sensor head (100) that varies the intensity of light transmitted therethrough depending upon the strength of the applied electric field; an optical fiber (8) which leads light from a light source (1) to the head (100); an optical fiber (9) which leads the light transmitted through the head (100) to a photoelectric converter (10); and a measuring instrument (11) which measures and displays electric signals from the converter (10). This sensor detects electromagnetic noise or electromagnetic leakage through changes in intensity of light without bringing the head (100) into contact with a source of electromagnetic noise or leakage, but by positioning the head (10) near the source.
More Like This:
| JPH02134576 | HIGH SPEED VOLTAGE MEASURING APPARATUS |
| JPH03285189 | MAGNETIC FIELD SENSOR |
| JPS595967 | VOLTMETER HAVING ELECTROOPTICAL EFFECT APPLIED THERETO |
Inventors:
KONDO MICHIKAZU (JP)
Application Number:
PCT/JP1994/001113
Publication Date:
January 19, 1995
Filing Date:
July 07, 1994
Export Citation:
Assignee:
TOKIN CORP (JP)
KONDO MICHIKAZU (JP)
KONDO MICHIKAZU (JP)
International Classes:
G01R15/24; G01R29/08; (IPC1-7): G01R15/24
Foreign References:
| JPS5724863A | 1982-02-09 | |||
| JPS57171271A | 1982-10-21 | |||
| JPS5848863A | 1983-03-22 | |||
| JPS56157866A | 1981-12-05 | |||
| JPH0277656A | 1990-03-16 |
Other References:
See also references of EP 0664460A4
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