ZERO RADIOMETER Russian patent published in 2017 - IPC G01R29/08 G01K11/00 G01K13/00 

FIELD: measuring equipment.

SUBSTANCE: declared zero radiometer comprising an antenna, the first and the second high-frequency switches, a series-connected pulse amplifier, a high pass filter, a synchronous low pass filter, a comparator, a control unit, the first, the second and the third outputs of which are connected respectively to the control inputs of the synchronous low pass filter, the first and the second high-frequency switches, and the fourth output is an output bus of the radiometer, a common bus of which is connected to the second input of the comparator, a thermostated board, on which the first high-frequency switch is mounted and stored therewith in a thermal contact. The radiometer is additionally equipped with an agreed load mounted on the thermostated board and stored therewith in a thermal contact, connected to the first input of the first high-frequency switch, the second and the third inputs of which are connected respectively to the high-frequency short-circuit and the antenna, and the output is connected through the first high-frequency amplifier to the input of the second high-frequency switch, the first and the second outputs of which are connected through the first and the second pass-band filters respectively to the first and the second inputs of the third high-frequency switch, the output of which is connected to the input of the pulse amplifier through the series-connected second high-frequency amplifier and the quadratic detector, wherein the control inputs of the second and the third high-frequency switches are combined together.

EFFECT: simplifying the input measuring part of the zero radiometer while preserving the advantages of the zero measurement method, simplifying the design, reducing the weight and dimension parameters and increasing the reliability.

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