Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1996-10-25
1999-09-14
Ballato, Josie
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
G01R 3100
Patent
active
059528184
ABSTRACT:
Apparatus and methods for characterizing free-space electromagnetic energy, and in particular, apparatus/method suitable for real-time two-dimensional far-infrared imaging applications are presented. The sensing technique is based on a non-linear coupling between a low-frequency electric field and a laser beam in an electro-optic crystal. In addition to a pratical counter-propagating sensing technique, a co-linear approach is described which provides longer radiated field--optical beam interaction length, thereby making imaging applications practical.
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Libelo Louis Francis
Wu Qi
Zhang Xi-Cheng
Ballato Josie
Kobert Russell M.
Rensselaer Polytechnic Institute
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