Moisture activated wiper sensor

Details Moisture activated wiper sensor Moisture activated wiper sensor

1994-07-29

1996-10-01

Chilcot, Richard

Measuring and testing

Gas analysis

Moisture content or vapor pressure

G01N 2100

Patent

active

055602452

ABSTRACT:
A moisture activated wiper sensor has all necessary electronic and optical components for detecting moisture and performing signal processing in a single module which mounts to a vehicle windshield. The packaging of the optical components and associated electronic circuitry in an acceptably small housing is achieved by use of insert-molded lenses and infrared emitters and detectors mounted on separate printed circuit boards called wing boards. Wing board supports molded into the housing assure proper orientation of the wing boards relative to the lenses. Flexible cables connect the wing boards to a main circuit board.

REFERENCES:
patent: 4701613 (1987-10-01), Watanabe et al.
patent: 4798956 (1989-01-01), Hochstein
patent: 4859867 (1989-08-01), Larson et al.
patent: 4871917 (1989-10-01), O'Farrell et al.
patent: 4960996 (1990-10-01), Hochstein
patent: 4973844 (1990-11-01), O'Farrell et al.

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