DEVICE FOR MEASUREMENT OF FREQUENCY ERROR OF THERMOELECTRIC CONVERTERS Russian patent published in 2018 - IPC G01R35/00 H01L35/00 G01K15/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring technology and can be used for the frequency error of non-contact thermoelectric converters used for measuring high-frequency current, induced in the circuits of electrical activation of pyrotechnic and explosive devices of the object when tested for the influence of a high-frequency electromagnetic field. Device contains sources of direct and alternating current that can be connected to the input of a heater of a thermoelectric transducer whose thermocouple is connected to a thermo-emf measurement device, and a constant and alternating voltage meter connected to the heater output. Device is a matched high-frequency path, including a waveguide, in which a thermoelectric converter is mounted. In this case, the heater of the thermoelectric transducer is connected between the input and the output of the waveguide. Input of the waveguide is connected by a high-frequency matched cable with a source of direct or alternating current, and its output is connected to the coordinated input of a constant-voltage and alternating-voltage meter. Thermocouple leads through the holes in the waveguide housing are connected to the inputs of the filters entering the waveguide structure, the outputs of which are connected to the thermo-emf thermosteam of thermoelectric device. Dimensions of the internal cavity of the waveguide are identical to the dimensions of the cavity in which the circuits of the electrical activation of the pyrotechnic (explosive) device are placed.

EFFECT: improvement of the measurement accuracy.

1 cl, 2 dwg