Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1992-08-27
1995-03-07
Nguyen, Vinh
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
25022714, H01J 4014
Patent
active
053961668
ABSTRACT:
A fiber optic interferometer sensor system utilizing a fiber optic interferometer with an elecrostrictive transducer bonded to one of first and second optical fiber arms of the interferometer for obtaining excellent low frequency voltage detectors and electric field sensors. The non-linear characteristics of the electrostrictive transducer allows for detecting low frequency or dc signals at sidebands of a high frequency carrier, resolving extremely small voltages at low frequencies, or sensing low frequency electric fields. Examples of electrostrictive material include Ba:PZT, PLZT, PMN+PT, and other doped ferroelectric relaxors.
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Bucholtz Frank
Kersey Alan D.
Vohra Sandeep T.
Jameson George
McDonnell Thomas E.
Nguyen Vinh
The United States of America as represented by the Secretary of
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