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Introduction and application of light sensor

User:JXCTUpload time:Nov 01 2021
INGENUITY
Introduction and application of light sensor

Light sensor is a kind of optical detection equipment which is commonly used. There are related applications in many industries. Just like some light-controlled switches and light-controlled components in our daily life. For example, light sensors exist in street lamps, various weather stations and modern intelligent greenhouses. But while we know it’s a light sensor, most of us don’t know much about it.

This light sensor is based on the hot spot effect principle. Is the use of low light has a more sensitive response to the detection element. These sensors are the photographic matrix of a camera, with a wound electroplated multi-contact thermopile and a black coating with high absorption. The hot contact is on the induction surface, and the cold node is located in the body, and the hot and cold contact produces the thermoelectric potential. In the linear range, the output signal is proportional to the solar radiation. The visible light of the filter irradiates to the imported photodiode, and the photodiode is converted into an electrical signal according to the size of the visible illumination. The electrical signal then enters the light sensor’s processor system to output the desired binary signal.

Illuminance sensor
Illuminance sensor 
Introduction to light sensor

There are many different types of light sensors, some of which have even been optimized to reduce the impact of temperature. TheIlluminance sensor also uses a temperature compensation circuit, which can greatly improve the sensitivity of the light sensor and its detection ability. When installing the illuminance sensor, be sure to ensure that the surface is clean and placed on the measured surface. When using the Illuminance sensor, avoid touching the sensor diaphragm, so as not to cause damage to the light sensor.With the development of smart agriculture, all kinds of sensors have attracted people’s attention. It is an important part of smart agriculture, which can better meet the diverse needs of different customers.