Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-11-28
1990-09-11
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25023117, 250239, G01D 530, H01J 502
Patent
active
049565516
ABSTRACT:
A sensor (1) for consumption measurements in a household consumption measuring system, in which the household consumption measuring system exhibits, as consumption measuring devices, in particular, a standard electricity meter, a standard gas meter and/or a standard water meter having a display element (2) of the consumption measuring device placed behind a transparent cover plate (4). The sensor (1) has a housing (6) with an outlet side (7) and, in the housing (6), a reflex photoelectric barrier emitter (8) and a reflex photoelectric barrier receiver (9) are placed next to each other at the outlet side (7). The sensor (1) is connected to an evaluation unit, can be produced especially economically and, in particular, can be installed on a consumption measuring device also simply and economically by setting housing (6) of the sensor with its outlet side (7) on cover plate (4) of the consumption measuring device and fastening it thereto. The position of reflex photoelectric barrier emitter (8) and reflex photoelectric barrier receiver (9) is adjustable in the housing (6) both mutually and with respect to outlet side (7) of housing (6). The reflex photoelectric barrier emitter (8) and reflex photoelectric barrier receiver (9) are aligned operatively with display element (2) of the consumption measuring device.
REFERENCES:
patent: 4204115 (1980-05-01), Boldridge, Jr.
patent: 4282430 (1981-08-01), Hatten et al.
Eigenschaften und Anwendungen von Reflexlichtschranken, Von Dipl.-Ing. R. H. Dollwetzel, Muenchen-Feinwerktechnik & Messtechnik 93 (1985).
Repschlager Horst
Riemer Heinz
Infas Institut Fur Angewandte Sozialwissenscheft GmbH
Westin Edward P.
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