Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1981-12-09
1984-08-07
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
34087004, 34087016, 34087018, 34087021, 340632, 73 23, 324464, 422 94, 422 98, G08B 2300, G08C 1916
Patent
active
044646534
ABSTRACT:
A combustible gas detection system in which remotely located combustible gas sensors of the analog type are monitored by a central controller. The sensor analog data is converted to digital data and transmitted to the controller. The controller tests the integrity and validity of data received from the sensor, identifies the nature of any faults therein and vocally signals the cause of such faults. The controller computes the concentration of combustible gas at the sensor and automatically determines sensor calibration constants from received sensor data.
REFERENCES:
patent: 3852730 (1974-12-01), Commins
patent: 3964018 (1976-06-01), Strait et al.
patent: 4231249 (1980-11-01), Zuckerman
patent: 4311895 (1982-01-01), Tanabe
patent: 4328494 (1982-05-01), Goodall
Christoforo W. G.
Crosland Donnie L.
Lamb Bruce L.
The Bendix Corporation
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