Optics: measuring and testing – For light transmission or absorption – Of fluent material
Patent
1993-03-05
1996-04-23
Hille, Rolf
Optics: measuring and testing
For light transmission or absorption
Of fluent material
356 72, 128667, 128665, 73715, A61B 500, H01J 4014, G01L 708
Patent
active
055108954
ABSTRACT:
A probe for monitoring a fluid medium employing at least one electromagnetic wave reflector and at least one fiber optic for analysis of the fluid medium. The probe includes a base having a hole, a window covering the hole of the base, wherein the window transmits electromagnetic waves and a electromagnetic reflector, spaced apart from the window, disposed to reflect at least part of the electromagnetic waves toward the window. The probe collects the reflected waves through one or more fiber optics placed behind a window to a fluid medium and transmits the waves to a spectrometer connected to a computer which analyzes the fluid medium on a real time on-line basis. Piezoresistive and temperature sensing elements are deposited on the window which also may function as a force collector diaphragm of thin refractory or a semiconductor materials. The piezoresistive elements are on the unsupported part of the diaphragm and at least part of the diaphragm is transparent to electromagnetic waves.
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Pierre Desgoutte et al., Les capteurs en instrumentation industrielle (no translation provided).
Cross, Practical Infra-Red Spectroscopy at 36 (1964) copy not readily available!.
Hardy David B.
Hille Rolf
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