FIELD: thermometry; measuring technique.
SUBSTANCE: fiber-optic device can be used for remote measurement of sea medium temperature. Two fiber coils of interferometer are disposed in tested medium. One fiber coil is fixed with tension at bimetal temperature sensitive element in form of spiral. When temperature changes, spiral rolls up or out to tension or to extend sensitive fiber.
EFFECT: registration of light wave's phase depending on temperature of liquid medium.
2 cl, 1 dwg
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