Optical sensor and rotating machine

This optical sensor includes an illuminating optical fiber, a first light receiving optical fiber, a second light receiving optical fiber, and a measuring unit. An intersection of a reflected light entering the first light receiving optical fiber and the reflected light entering the second light rec...

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Bibliographic Details
Main Authors Kondou, Akio, Onishi, Tomoyuki, Miyamoto, Takahiro
Format Patent
LanguageEnglish
Published 22.02.2022
Subjects
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ENGINE PLANTS IN GENERAL
GAS-TURBINE PLANTS
GENERATION
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PHYSICS
STEAM ENGINES
TESTING
WEAPONS
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Summary:This optical sensor includes an illuminating optical fiber, a first light receiving optical fiber, a second light receiving optical fiber, and a measuring unit. An intersection of a reflected light entering the first light receiving optical fiber and the reflected light entering the second light receiving optical fiber is located on a front end surface of a sensor head or is closer to the peripheral surface of a moving body (a rotating body) than the front end surface of the sensor head is. This can compensate for effects of thermal expansion and accurately measure a clearance.
Bibliography:Application Number: US201716088656