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Description

one

The invention relates to the field of dosing of UV radiation affecting the body.

Indicators of the intensity of UV radiation are known, which contain a radiation receiver with a relaxation generator, an energy conversion circuit and a signaling device.

The purpose of the invention is to increase accuracy and reliability with an individual approach and differential selection of the radiation dose.

This is achieved by the fact that an integrating element is turned on at the output of the relaxation generator, the output of which is connected to the input of the detector.

The drawing shows a block diagram of the proposed indicator.

The indicator consists of a radiation receiver I, a relaxation generator 2, an energy conversion circuit 3, an integrator 4, and a detector 5.

The incident energy of the sun's rays from the ultraviolet range of the quartz lamp, falling on the radiation receiver, causes a photocurrent in it that is proportional to the energy of the ultraviolet rays. The signal from receiver 1 controls the frequency of the relaxation generator 2.

A radiation receiver is mounted on a following system, which expands the plane of the sensitive element of the radiation receiver perpendicular to the incident beam. The oscillations of the relaxation generator 2 arrive at the input of the energy conversion circuit 3. The transducer forms a sawtooth signal of the relaxation generator 2 into a periodic sequence of rectangular pulses, the pulse duration being continuously controlled, due to which

quick setup is provided. The generated pulses go to an integrating device 4, which summarizes the pulses and generates a pulse, which triggers the signaling device 5. The pulse frequency corresponds to the amount of energy perceived by the sensitive elements of the radiation receiver 1.

An electronic meter with digital indication, an informant indicator, a sound indication device, etc. are used as a signaling device 5. At the same time, an electronic counter, an informant indicator and sound indication device are calibrated in terms of the biological dose corresponding unit area of skin.

The proposed indicator allows individual dosing of the duration of sunbathing.

The subject of invention

A UV intensity indicator comprising a radiation receiver by a relaxation generator, an energy conversion circuit and a detector, characterized in that

In order to achieve accuracy and reliability with an individual approach and differential radiation dose, the integrating element is connected to the output of the relaxation generator, the output of which is connected to the input of the detector.

I.