Fluid flow sensing apparatus for in vivo and industrial applications employing novel differential optical fiber pressure sensors
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United States of America Patent
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Jan 12, 1993
Issued Date -
N/A
app pub date -
Sep 13, 1985
filing date -
Mar 8, 1984
priority date (Note) -
Expired
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Abstract
An optical fiber fluid flow device is provided for in vivo determination of blood flow in arteries. The device includes a fiber optical fluid pressure measuring device having at least first and second optical fiber sensors which optical fiber sensors are positioned in the blood passage and in a restricted flow area in the blood passage and the two fiber optical pressure fluid sensors are connected to an interferometer associated with an opto-electronic demodulator which has an output signal representing the differential pressure between the two sensed area. The device also has utility in industrial applications.
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