Instrument and method for testing fluid characteristics
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United States of America Patent
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-
Dec 28, 2004
Grant Date -
Mar 27, 2003
app pub date -
Sep 25, 2001
filing date -
Sep 25, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An instrument for testing fluid characteristics has a vial and a housing. The vial defines a chamber for receiving a sample of the fluid and has a cap for sealing the fluid therein. The housing defines a recess for receiving the vial. Multiple light emitting diodes and photovoltaic detectors are arranged on multiple meridional planes within the housing. The meridional planes each intersect approximately at a central axis of the chamber when the vial is placed within the recess. Modulation of the light emitting diodes and tuned processing electronics allow for simultaneous evaluation of sample characteristics such as spectral transmittance, turbidity and fluorescence. The user selects particular tests via a keypad and a display indicates the results of the chosen analysis.
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