METHOD FOR REMOTE DETERMINATION OF THERMODYNAMIC TEMPERATURE OF FAST-FLOWING PROCESS DEVELOPING IN RADIOTRANSPARENT OBJECT, DEVICE FOR ITS IMPLEMENTATION, METHODS OF CALIBRATING DEVICE AND NOISE GENERATOR AS PART OF THIS DEVICE Russian patent published in 2019 - IPC G01K11/00 G01K13/02 G01K15/00 G01R29/08 G01R29/26 G01R35/00 G01J5/00 

FIELD: physics.

SUBSTANCE: invention relates to the technique of radiophysical measurements and can be used to measure in the millimeter section of the spectrum of intrinsic thermal radiation of various high-speed gas-dynamic processes developing in radio-transparent objects. Disclosed is a method for remote determination of thermodynamic temperature of a fast-flowing process developing in a radio-transparent object, a device for its implementation, methods of calibrating a device and a noise generator in this device. In method involving synchronous measurement of average power of thermal electromagnetic radiation of analyzed object and electromagnetic radiation of illumination generator reflected from surface of object, thermodynamic temperature value is calculated from obtained results of said measurements using predetermined calibration constants. Radio transparent substance is prepared by applying an antireflection dielectric layer on the front end face, and a reflecting surface on the rear end face. In a device consisting of a microwave radio receiver of a superheterodyne type, the backlight signal generator is configured to generate a narrowband signal. To the second arm of the secondary line of the directional coupler, a broadband noise generator is connected with a noise temperature value, which is known to be connected to the antenna input, noise signal of which is transmitted to input of radio receiving device, and outputs of generator synchronously controlling parameters of their signals are connected to control inputs of electrically controlled attenuator and noise generator.

EFFECT: technical result is possibility of remote determination of thermodynamic temperature of fast processes developing in radio-transparent objects with maximum possible time resolution.

4 cl, 4 dwg