Boots – shoes – and leggings
Patent
1996-11-07
1998-10-27
Ruggiero, Joseph
Boots, shoes, and leggings
395 61, 702182, G06F 1900
Patent
active
058285679
ABSTRACT:
Transmitter in a process control system includes a resistance sensor sensing a process variable and providing a sensor output. Sensor monitoring circuitry coupled to the sensor provides a secondary signal related to the sensor. Analog-to-digital conversion circuitry coupled to the sensor output and the sensor monitoring circuitry provides a digitized sensor output and a digitized secondary signal. Output circuitry coupled to a process control loop transmits a residual life estimate related to residual life of the sensor. A memory stores a set of expected results related to the secondary signal and to the sensor. Diagnostic circuitry provides the residual life estimate as a function of the expected results stored in the memory, the digitized sensor output and the digitized secondary signal.
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Eryurek Evren
Lenz Gary
Rosemount Inc.
Ruggiero Joseph
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