Apparatus for sensing of chlorine dioxide
AssigneeTBS Technologies, LLC
InventorsWilliam W. Carson, Paul Sabin, Thomas J. Dee
Life of this patent
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Abstract
The instant invention provides apparatuses for measuring the level or concentration of chlorine dioxide gas in a sample and methods of using the same. One aspect of the invention provides an apparatus for measuring a concentration of a chlorine dioxide gas in a sample. The apparatus includes a light emitting diode (LED), a light sensor, and a flow path between the LED and the light sensor, and a filter configured to remove chlorine dioxide from a reference stream. The flow path is capable of containing a sample. The sensor is capable of measuring the level of chlorine dioxide in the sample and the reference stream.
Claims20
An apparatus for measuring a concentration of a chlorine dioxide gas in a sample, the apparatus comprising:
- a light emitting diode (LED);
- a light sensor;
- a flow path between the LED and the light sensor, the flow path capable of containing a sample;
- a filter configured to remove chlorine dioxide from a reference stream;
- and
- a valve positioned between and in fluid communication with the filter and the flow path;
- wherein the valve is configured for repeated actuation to alternate between (i) introducing the sample into the flow path and (ii) introducing the reference stream drawn through the filter into the flow path;
- and
- wherein the sensor is capable of measuring the level of chlorine dioxide in the sample and the reference stream.
An apparatus for measuring a concentration of a chlorine dioxide gas in a sample, the apparatus comprising:
- a light emitting diode (LED);
- a light sensor;
- a flow path between the LED and the light sensor, the flow path capable of containing a sample;
- a fluid moving device;
- and
- a filter configured to remove chlorine dioxide from a reference stream;
- wherein the sensor is capable of measuring the level of chlorine dioxide in the sample and the reference stream;
- wherein the filter is located on an outlet of the apparatus and wherein the fluid moving device is configured for actuation to alternate between (i) moving fluid from an ambient atmosphere through an inlet of the apparatus, through the flow path, and through the outlet in order to measure a sample, and (ii) moving fluid through the filter from the outlet, through the flow path, and through the inlet in order to measure a reference stream.
Dependencies are inferred from the claim text.