What are the main applications of light intensity measuring instruments-illuminance meter
A portable illuminance meter belongs to the technical field of illuminance measurement and is suitable for measuring illuminance during agricultural production, daily life, and outdoor travel. It uses a photoresistor as a photoelectric conversion device, which contains a DC power supply, and is sequentially connected in series with a voltage conversion circuit, a switch, a photoresistor, a test circuit, an A/D converter, a decoder, a display driver and a display at the output end of the DC power supply. . The SO 200K light intensity measuring instrument avoids the use of photometric heads, and the DC power supply only uses 9VBlock batteries. The decoder, display driver and display are integrated on an integrated circuit card, making it simple in structure, small in size, easy to move, and It has the advantages of responsiveness and so on. The utility model relates to an ultraviolet radiation illuminance meter, which belongs to optical testing instruments. It is characterized by two one-way cut-off optical filters and two identical photoelectric receivers to form a dual optical path detector. The circuit part adopts dual path amplification, so that the radiation value of the required test band can be accurately measured, and the miscellaneous The test principle of the illuminance meter with strong astigmatism cut-off: illuminance is the surface density of the luminous flux received on the illuminated plane. The illuminance meter is an instrument used to measure the illuminance on the illuminated surface, and it is one of the most widely used instruments in illuminance measurement.
