Boots – shoes – and leggings
Patent
1995-06-05
1997-09-02
Voeltz, Emanuel T.
Boots, shoes, and leggings
236 15BB, 374179, G01K 714
Patent
active
056638990
ABSTRACT:
A temperature sensing system contains a plurality of thermocouple pairs which are connected to an interface. The interface contains a microprocessor and a memory and provides for fault tolerance within the system by comparing measurements from each thermocouple within a thermocouple pair to a predetermined threshold value. If the difference between the thermocouple readings is greater than the threshold value, a malfunction is identified and corrective action is taken. The system determines which thermocouple has malfunctioned by comparing the readings of each of the thermocouples to a projected value based on historical data contained in the memory. The thermocouple whose reading varies to the greatest degree from its associated projected value is identified as the malfunctioning thermocouple. The reading from the properly functioning thermocouple is then used to produce an output signal. A likely cause of the malfunction can also be identified by specifying a short when the malfunctioning thermocouple provides a temperature reading substantially below its projected value, and specifying an open when the malfunctioning thermocouple provides a temperature reading substantially greater than its projected value.
REFERENCES:
patent: 4588308 (1986-05-01), Saito
patent: 5325678 (1994-07-01), Borah et al.
patent: 5496450 (1996-03-01), Blumenthal et al.
Taylor James
Zvonar John G.
Advanced Micro Devices
Kemper M.
Voeltz Emanuel T.
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