Method of generating temperature pulse signal

The method of generating a temperature pulse signal is disclosed. A closed container filled with low prandtl number liquid is included. The left wall surface of the closed container is attached to a high temperature device. The right wall surface of the closed container is in a low temperature environment, and other wall surfaces are insulated. Several thermocouples used for detecting the averagetemperature of the liquid are arranged in the closed container. The thermocouples and a frequency counting and display unit are connected through a transmission line. The frequency counting and display unit is used for measuring and displaying an output heat pulse signal so that the pulse signal can be conveniently used. The large amount of heat generated by an electronic device can be taken awaythrough convection and heat conduction from the closed container filled with the low prandtl number liquid so that the electronic device can be kept in a normal work junction temperature. Due to the instability of the low pran