| 摘要 |
A heater control system for use with a radiant heater of an infant warme r. The system utilizes a patient skin temperature and a set temperature inputte d by a user and initially subtracts the patient temperature from the set point temperature to arrive at a differential signal identified as the Patient Temperature Gradient (PTG). That PTG is the used to directly control the power to the radiant heater by modifying the power to the heater depending upon the sign and the magnitude of the PTG. Thus, the method of the present invention is not a proportional control system but seeks and finds its own level of power that is not governed by an y specific temperature difference and will adjust the heater power where the resulting heater power adjustment may be different for a variety of conditions.</SDOAB >
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