Measuring and recording cutaneous temperature - involves using probe containing thermal resistors for measurement and controlling probe body temperature

摘要

The temperatures of discrete cutaneous points are taken and recorded in order to determine the instant in time where the temperature taken by the temperature probe passes through a minimum value. A temperature probe (10) contains negative temperature coefficient thermal resistors (4, 5) one (4) of which contacts the front face while the other (5) contacts the body. A heating resistor (3) is also included. The thermal resistors are connected into bridge circuits and unbalanced outputs are applied to amplifiers. A switch permits difference in unbalance to be obtained. The output of one amplifier is used to determine the minimum temperature and the reference temperature for application to an X-Y plotting table.