Electrically heated optoelectronic device for detecting moisture

Details Electrically heated optoelectronic device for detecting moisture Electrically heated optoelectronic device for detecting moisture

1994-12-12

1997-06-17

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

318483, 340602, H05B 100, G08B 2100

Patent

active

056393938

ABSTRACT:
An optoelectronic sensor device which has a beam transmitter/beam receiver arrangement associated with a beam guide element. The arrangement is disposed together with a heating device in a common housing. In order to install the heating device in a convenient manner in the surrounding area of the sensor device, the heating device consists of at least one heat conducting plate fixed to a support part, which is allocated with its substantial main areas to the beam guide element and is connected by at least one connection arm to the electrical printed circuit board. The heating device includes at least one heating element, which is disposed in the proximity of a connection arm directly on the electrical printed circuit board. For communicating the necessary heat into the heat conducting plate, the printed circuit board is connected at least in a material-locking manner to an associated connection arm.

REFERENCES:
patent: 4355271 (1982-10-01), Noack
patent: 4481450 (1984-11-01), Watanabe et al.
patent: 4701613 (1987-10-01), Watanabe et al.
patent: 4960996 (1990-10-01), Hochstein
patent: 5391891 (1995-02-01), Wiegleb et al.
patent: 5543923 (1996-08-01), Levers et al.

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