Communications: electrical – Systems – Timer control
Patent
1984-03-09
1988-01-26
Yasich, Daniel M.
Communications: electrical
Systems
Timer control
324 74, 340588, 340653, 368114, 374104, G08B 2100, G04F 1010, G01R 3504
Patent
active
047219424
ABSTRACT:
A circuit for indicating when recalibration of an electrical sensor is necessary includes an analog driving circuit adapted to be coupled to the sensor, and an analog indicating device coupled to the analog driving circuit for indicating when the sensor should be recalibrated. The analog driving circuit provides a signal proportional to the current received from the electrical circuit. The indicating device is responsive to the output from the analog driving circuit and provides an output which is a function of both the sensor output and the elapsed time that the sensor has been operated.
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RS Components Catalog; Mar.-Jun. 1985; "Semiconductors 279"; (Quarndon El.); 6 pages.
Benedek Robin A.
Hollister Ralph G.
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