July 14, 2020

Working principle of UV dosimeter

The working principle of the UV dosimeter: First of all, we must first understand what is the light intensity. The light intensity refers to the degree of the object being illuminated, that is, the ratio of the light flux on the surface of the object to the area being illuminated. Ultraviolet UV illuminance meter, also known as ultraviolet radiometer, ultraviolet irradiance meter, ultraviolet intensity meter, etc., is an instrument specially used to measure light intensity and brightness. The instrument is mainly used to measure ultraviolet rays, used in photochemistry, polymer material aging, flaw detection , Health, medical, chemical, health, food, electronics, plant cultivation, large-scale integrated circuit lithography and other fields of ultraviolet radiation measurement work.
The UV dosimeter uses 35 different probes to measure UVA, UVB, UVC, visible light and infrared light. The measurement wavelength is divided into UVA (320nm-380nm), UVB (280nm-320nm), UVC (200nm-280nm), and some high-end products can detect a wide range of bands. Humanized operation, small and flexible, easy to carry.
Photovoltaic cells are photovoltaic elements that can directly convert light energy into electrical energy. Therefore, when the light hits the surface of the selenium photovoltaic cell, the incident light passes through the metal thin film and reaches the interface between the semiconductor selenium layer and the metal thin film, and a photoelectric effect is generated when passing through the interface. Then there is a potential difference, and the magnitude of this difference has a certain proportional relationship with the intensity of the illuminance on the photovoltaic cell surface. If an external circuit is connected at this time, a current will flow through, and the current value can be displayed on the microamp meter. The magnitude of photocurrent is the intensity of light and the magnitude of resistance in the loop. The illuminance meter has a shift device, so it can measure high illuminance and low illuminance.
Shenzhen Linshang Technology, as a manufacturer of ultraviolet radiation illuminance meter, provides you with a series of ultraviolet radiation illuminance meters, covering germicidal lamp ultraviolet intensity detector, multi-probe ultraviolet illuminance meter, digital intelligent ultraviolet power meter that can be monitored online, etc. Can provide you with UVA, UVB, UVC and other wavelengths of ultraviolet intensity detection, you can freely choose a host with a probe or a host with multiple probes. The operation of the instrument is simple and fast, and the measurement data is accurate, which can be tested by the national authoritative measurement agency.