Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1984-02-01
1986-12-23
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
324 96, G01D 534
Patent
active
046314024
ABSTRACT:
An apparatus for measuring electric field by making use of electrooptic effect includes an electrooptical crystal having a crystallographically eulytite structure such as Bi.sub.4 Ge.sub.3 O.sub.12, Bi.sub.4 Si.sub.3 O.sub.12 or Bi.sub.4 (Ge, Si).sub.3 O.sub.12 as a material with electrooptic effect. The optical electric-field measuring apparatus has an increased measuring sensitivity and a stabilized temperature characteristic and scarcely disturbs the distribution of electric field to be measured.
Matsumura Hiroyoshi
Nagatsuma Kazuyuki
Takagi Kazumasa
Allen Stephone
Hitachi , Ltd.
Hitachi Cable Ltd.
Nelms David C.
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