Optically coupled gas meter

Details Optically coupled gas meter Optically coupled gas meter

1998-05-26

2000-07-11

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

25023114, 25023111, 34087028, 377 21, 7386177, G08B 2300

Patent

active

060879599

ABSTRACT:
A gas meter using optical communication. The meter includes a shaft that is rotated by a flow of gas, a first sensor for sensing a first rotational angle of the shaft, a second sensor for sensing a second rotational angle of the shaft, a first light source operated by the first sensor for issuing a first light signal, and a second light source operated by the second sensor for issuing a second light signal. One or more fiber optic cables carries the light signals to an external meter interface having an optical receiver. A rotation of the shaft is recognizable by the external receiver when first one then the other of the light signals is detected.

REFERENCES:
patent: 2182717 (1939-12-01), Chance
patent: 3351767 (1967-11-01), Suiter
patent: 4061901 (1977-12-01), Saunders
patent: 4124839 (1978-11-01), Cohen
patent: 4489615 (1984-12-01), Ward
patent: 4609817 (1986-09-01), Mumzhiu
patent: 5004913 (1991-04-01), Kleinerman
patent: 5259251 (1993-11-01), Brinster

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