New method for the measurement of the power consumption of a guarded hot plate
B.V. Holcombe · Review of Scientific Instruments · 1984
A method has been developed, to modify the way power is applied to the test plate of a guarded hot plate, which enables continuous and accurate measurement of the power consumption of the test plate. It is very simple to produce and offers significant advantages in cost and flexibility over methods used in existing systems. The output of the temperature controller is converted into bursts of precisely regulated pulses of power, and these are counted against a time base. This enables digital manipulation of the power consumption data and interfacing of the guarded hot plate to a data processor.