Chlorine dioxide sensor

Details Chlorine dioxide sensor Chlorine dioxide sensor

2009-02-18

2011-12-13

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

For light transmission or absorption

Of fluent material

C356S437000

Reexamination Certificate

active

08077316

ABSTRACT:
A chemical sensor is disclosed. The sensor has a test chamber for receiving chemicals in a gaseous state, the test chamber having two substantially transparent windows at first and second ends of the test chamber. The sensor uses a pulse operated ultraviolet light emitting diode at the first end of the test chamber emitting at a wavelength close to a maximum in the absorption band of a test chemical, and an electromagnetic sensor at a second end of the test chamber, the sensor being sensitive to the light emitted by the light emitting diode.

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“Data Sheet for 9187sc Amperometric Chlorine Dioxide Sensor”, published 2005 by Hach Company.
“Technical Information regarding Chlorine/Chlorine Dioxide Measurement OCM223”, Technical Information No. TI 214e00 No. 51503822, published by Hobeco Sudamericana Ltda, Rio de Janeiro, Brazil.
Australian Patent Office PCT International Search Report, International Application PCT/US2009/043594, mailed Sep. 10, 2009.
Australian Patent Office PCT Written Opinion of the ISA, International Application PCT/US2009/043594, Mailed Sep. 10, 2009.

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