Optics: measuring and testing – Refraction testing
Patent
1988-03-04
1989-11-28
Rosenberger, Richard A.
Optics: measuring and testing
Refraction testing
356 72, 374131, G01N 2151, G01K 1120
Patent
active
048833541
ABSTRACT:
Several specific types of optical sensors capable of measuring temperature, pressure, force, acceleration, radiation and electrical fields, fluid level, vapor pressure, and the like, are disclosed, along with an electro-optical system for detecting the optical signal developed by the sensor. One such probe utilizes a convex shaped structure consisting of an elastomeric material attached to an end of an optical fiber, the elastomeric material being coated with a luminescent material, a combination that is capable of measuring both temperature and pressure. Such a probe is also specifically adapted for measuring surface temperature by making a good physical contact with the surface being measured. Another such probe utilizes a similar structure but of a non-elastomeric material for the purpose of detecting both temperature and either index of refraction or vapor pressure changes. Improvements in other existing sensors of a wide variety of physical parameters other than temperature are also described wherein temperature is simultaneously measured for correcting such physical parameter measurements that are affected by temperature variations.
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Heinemann Stanley O.
Sun Mei H.
Wickersheim Kenneth A.
Luxtron Corporation
Rosenberger Richard A.
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