Sensor for gases or ions

Details Sensor for gases or ions Sensor for gases or ions

1988-07-07

1989-10-10

Scott, Jr., Leon

Optics: measuring and testing

For light transmission or absorption

G01N 2100

Patent

active

048727598

ABSTRACT:
A sensor for gases or ions with a light source, a detector and a sensor layer all of which are attached to a carrier. A thin sensor film, the absorptivity of which changes through the action of the measurement medium, is arranged on a light waveguide, the one flat side of which covers a flat end face of the light source, the end face of the carrier and a plane receiving surface of the detector. Thus, a sensitive sensor, especially for gases, is obtained in which the sensor layer, the light source and the detector form an integrated structural unit.

REFERENCES:
patent: 3754867 (1973-08-01), Guenther
patent: 4448524 (1984-05-01), Brus et al.
patent: 4600310 (1986-07-01), Cramp et al.
patent: 4661320 (1987-04-01), Ito et al.

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