Gaseous detection system

Details Gaseous detection system Gaseous detection system

1994-01-24

1994-12-06

Warden, Robert J.

Measuring and testing

Gas analysis

Gas chromatography

73 2336, 73 2341, 422 83, 422 84, G01N 3108

Patent

active

053699777

ABSTRACT:
A gaseous detection system for detecting the existence of a certain gas and further detecting a certain level or percentage of that certain gas within a prescribed environment. An example is the use of the gas detection system in a motor vehicle or elsewhere to determine when the driver of the motor vehicle may be driving under the influence of alcohol, and alternatively, for providing signals that may be used for evidentiary purposes of the alcohol content in the breath of the driver. The system includes a sensor unit for sensing ethanol in the atmospheric contents of the test person's breath and utilizing fresh air and a reference gas to determine the amount, if any, of blood-alcohol content of a person for evidentiary or other purposes.

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