Dans quels domaines les mesureurs d'intensité lumineuse sont-ils principalement utilisés ?
Light intensity measuring instruments are mainly used in various aspects. Illuminometer is an optical testing instrument that automatically prints optical fibers and measures the intensity of artificial and natural light. It solves the problem of continuous measurement of light intensity and automatic recording. It is composed of a photodetector, an automatic shift amplifier circuit, a curve recording device, a digital printing device, and an instantaneous digital display device. The curve recording device adopts a fiber optic frictionless recording method, and the photodetector is composed of a filter and a blue silicon photovoltaic cell, making the visible spectrum response curve conform to the human visual spectrum curve specified by the Commission on Illumination (CIE). Portable illuminance meter belongs to the field of illuminance measurement technology, suitable for measuring illuminance in agricultural production, daily life, and outdoor travel. It uses a photoresistor as a photoelectric conversion device, which contains a DC power supply. The voltage conversion circuit, switch, photoresistor, testing circuit, A/D converter, decoder, display driver, and display are sequentially connected in series at the output terminal of the DC power supply. The SO 200K light intensity measuring instrument avoids the use of a photometric head, and only requires a 9VBlock battery for the DC power supply. The decoder, display driver, and display are integrated on one integrated circuit card, making it simple in structure, small in size, easy to move, and has the advantages of sensitive response. A UV radiometer, belonging to optical testing instruments. Its feature is a dual path detector composed of two unidirectional cut-off optical filters and two identical photoelectric receivers. The circuit part uses dual amplification to accurately measure the radiation value of the required test band. The principle of the illuminance meter with strong stray light cut-off is that illuminance is the surface density of the received light flux on the illuminated plane. Illuminometer is an instrument used to measure the illuminance on the illuminated surface, and is one of the most commonly used instruments in illuminance measurement. The structural principle of an 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.
