Fluorescence emissions detector

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United States of America Patent

PATENT NO 9052287
APP PUB NO 20130277576A1
SERIAL NO

13921677

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Abstract

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A light source is gated ON and OFF in response to a pulsed signal. Photo emissions from the light source are coupled to a material under test. Resonant fluorescent emissions from the material are coupled to a photodiode. Current from the photodiode is coupled into an amplifier system comprising a first and second amplifier stages. The first amplifier stage is gated to a low gain when the light source is turned ON and the gain is increased when the light source goes from ON to OFF. The second amplifier stage has digitally programmable offset and gain settings in response to control signals. The output of the second amplifier stage is digitized by an analog to digital converter. A controller generates the pulse control signal and the control signals.

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Patent Owner(s)

Patent OwnerAddress
AUTHENTIX INC4355 EXCEL PARKWAY SUITE 100 ADDISON TX 75001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tinsley, Kenneth E Frisco, US 8 191

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