Sensor arrangement for optically measuring gas components
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United States of America Patent
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Mar 3, 1992
Grant Date -
N/A
app pub date -
Jun 6, 1990
filing date -
Jun 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is directed to a sensor arrangement for optically measuring the components of a gas. The sensor arrangement includes a housing containing a transmitter, a receiver device, a heatable holder for a measuring cuvette and optical devices for establishing the beam path. The sensor arrangement is improved by limiting the heating of the cuvette walls to those areas which lie in the beam path without the pass-through area of the optical devices being narrowed by the heating device. Also, the cuvette walls are heated in the manner described above without electrical contacts being disposed on the cuvette or on the sensor. The heatable cuvette holder includes one window disposed in the beam path which is transmissive for the measuring radiation. When the cuvette is seated in the cuvette holder, this window lies in virtual contact engagement with the cuvette and has a surface facing away from the cuvette. The heating device is applied to this surface of the window and is configured to allow the beam to pass therethrough.
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