Where are light intensity measuring instruments mainly used?
The illuminance meter is mainly used in those areas. The illuminance meter is an automatic printing optical fiber and an optical test instrument for measuring the intensity of artificial light and natural light. It solves the problem of continuous measurement of light intensity and automatic recording. It is composed of a photodetector, an automatic gear shifting amplifier circuit, a curve recording device, a digital printing device and an instantaneous digital display device. Photocell composition, so that the visible spectrum response curve conforms to the human visual spectrum curve stipulated by the Commission on Illumination (CIE).
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 Very strong astigmatism cut-off
The test principle of the illuminance meter: the illuminance is the area 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.
The structural principle of the illuminance meter: The illuminance meter consists of two parts: a photometric head (also known as a light receiving probe, including a receiver, a V(λ) pair filter, and a cosine corrector) and a reading display.
