SU486226A1 - Method for quantitative registration of infrared microwave radiation - Google Patents

Description

one

The invention relates to methods for detecting electron-thrombin radiation and can be used to "measure the structure of the radiation fields of an IR laser."

There is a known method of recording infrared microwave radiation by photometry, not a photo film showing the luminescence field of a thin screen from a microwave screen irradiated with infrared microwave radiation from a flame quenched, uniformly irradiated with ultraviolet radiation.

The purpose of the invention is to reduce the process and increase the accuracy of determining the power distribution of IR-microwave radiation.

This is achieved by using the proposed method, infrared radiation from a reference source, which is used as a photodiode, is scanned across the screen, simultaneously changing the voltage on the vectortod until the luashophornic screen and reference photodiode coincide, and the radiation under study is recorded voltage on the reference infrared LED.

The introduction of an additional recording device makes it possible to calibrate the luminescent screen and to obtain information on the determination of the radiation power in the process of reproduction.

The method differs from the known in that

The radiation of a reference infrared LED is scanned on a luminescent screen, while the brightness of this luminescence is compared with the brightness of an alized comparison LED (visible radiation). At the same time, the ultraviolet radiation that causes the luminescence of the translucent screen to be controlled is adjusted so that at the maximum operating voltage on the reference infrared LED, the screen luminescence brightness and the brightness of the LED are the same. Next, the IR infrared microwave radiation is applied to the screen and, successively, at each given point on the screen, the screen brightness and comparison LED brightness coincide by changing the direction of the infrared light at the specified point on the LED. .

Napravija on infrared LED is recorded on the instrument, calibrated in the logarithm: ical scale of the radiation power.

The method allows to obtain data on the distribution of intensity in a few seconds instead of several hours for IR-microwave fields rather simple cIIM1meter AI (iKpypoe spot, interference band, etc.). At the same time

scan I choose r in accordance with

The gray pattern of the distribution of sex is, in a single, visually observed a-ia luminescence screen.

It allows you to increase the accuracy of measurements, instead of the radiation power of the film blackening (When registering the heat extinguishing of luminophore, a comparison of luminescence with a stable source HKOtM (€ BE TODI ODO M) is obtained.

Subject invention

The method of quantitative registration of ICS of the radiation using a screen made of a phosphor with thermal fatigue in the thermostat, which is simultaneously Irradiated with a constant ultraviolet and the IR-microwave radiation being studied, is so that, in order to accelerate the process and increase the accuracy of determining the distribution the power of infrared microwave radiation in a given direction, corresponding to the s1mmetry of the problem, infrared radiation from the reference source, as the “OTOpoi-o use an LED, scan the screen, simultaneously changing The voltages on the light diode to the coincidence of the brightness of the phosphor screen and the reference LED emitting in the visible region of the spectrum, and the radiation traced is recorded by the voltage on the reference infrared LED.