Multichannel fluorosensor

Details Multichannel fluorosensor Multichannel fluorosensor

2007-04-03

2007-04-03

Sines, Brian (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C422S050000, C422S052000, C422S051000, C422S051000, C422S051000, C422S051000, C422S068100, C422S082050, C422S082060, C422S082070, C422S082090, C436S043000, C436S164000, C436S171000, C436S172000

Reexamination Certificate

active

10241451

ABSTRACT:
A multichannel fluorosensor includes an optical module and an electronic module combined in a watertight housing with an underwater connector. The fluorosensor has an integral calibrator for periodical sensitivity validation of the fluorosensor. The optical module has one or several excitation channels and one or several emission channels that use a mutual focusing system. To increase efficiency, the excitation and emission channels each have a micro-collimator made with one or more ball lenses. Each excitation channel has a light emitting diode and an optical filter. Each emission channel has a photodiode with a preamplifier and an optical filter. The electronic module connects directly to the optical module and includes a lock-in amplifier, a power supply and a controller with an A/D converter and a connector. The calibrator provides a response proportional to the excitation intensity, and matches with spectral parameter of fluorescence for the analyzed fluorescent substance.

REFERENCES:
patent: 4394573 (1983-07-01), Correa et al.
patent: 4804849 (1989-02-01), Booth et al.
patent: 5059790 (1991-10-01), Klainer et al.

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