Loss compensation using digital-signal processing in fiber-optic fluorescence sensors
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United States of America Patent
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Mar 27, 2001
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N/A
app pub date -
Oct 15, 1997
filing date -
Oct 15, 1996
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Expired
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Abstract
An optical fiber fluorescence sensor system capable of compensating fiber bending loss is provided. The system uses a modulated light-emitting diode and digital-signal processing chips to enhance the measurement of fluorescence signals. A fiber-optic oxygen sensor system suitable for measuring oxygen levels in gas and in aqueous media is provided. The system alleviates fiber bending loss. Detection of the signal-to-noise ratio of the system which exceeds 30 dB is done by using inexpensive components.
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