Temperature control system for cutaneous gas monitor

Details Temperature control system for cutaneous gas monitor Temperature control system for cutaneous gas monitor

1983-07-05

1986-04-29

Krass, Errol A.

Boots, shoes, and leggings

128635, 128736, 364184, 374163, 374164, G01K 1500

Patent

active

045861498

ABSTRACT:
A temperature control system for an electrically heated cutaneous gas sensor. A heating element is provided with heating current by a closed loop temperature control system. The system includes a plurality of temperature monitoring and control circuits which are arranged to turn off a switch that controls the flow of current through the heating element if the temperature of the sensor varies outside of acceptable limits. The system also includes latching circuitry for maintaining the off state of the switch after the occurrence of an out of limits condition, and circuitry for preventing the latching circuitry from being actuated during normal temperature transients.

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"Cutaneous Blood Flow and Its Relationship to Transcutaneous O.sub.2 /CO.sub.2 Measurements", A. V. Beran, et al., Critical Care Medicine, vol. 9, No. 10, pp. 736-741 (1981).

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