The principle of a sensor is that the sensitive element and the conversion element convert a specific measured signal into a usable signal. The role is to meet the needs of information transmission, processing, storage, display, recording and control.
1, sensor introduction
Sensors (transducer/sensor) is a detection device, can feel the measured information, and according to the law of the perceived information into electrical signals or other required forms of information output. They provide the object with senses such as touch, taste, smell, etc., so that the object has the ability to perceive and keenly capture the subtle changes in the outside world.
2, sensor definition
Sensors are a kind of physical equipment or biological organs that can sense and detect external signals, physical conditions or chemical composition. They are able to sense the measured properties or environmental changes through a combination of sensitive and conversion elements and convert the perceived information into usable signal outputs, usually electrical or other forms of signals, according to certain laws.
3. Main Features
With the advancement of microelectromechanical systems (MEMS) technology, the size and dimensions of sensors have been significantly reduced, and they can be fabricated into micro- or nanoscale devices.25 This technological development is mainly due to the wide application of microelectromechanical systems (MEMS) and silicon photonic integration processes.
The development trend
1. Intelligent and adaptive
Sensors will develop in the direction of more intelligent and adaptive. With the help of artificial intelligence and machine learning technology, sensors can realize autonomous learning and adapt to environmental changes, so as to more accurately sense and interpret data.
2, micro-nano technology
Sensors will become increasingly miniaturized, the development of micro-nano technology will make the sensor smaller, lower power consumption, applicable to more areas, such as wearable devices, medical equipment, etc., in particular, the temperature sensor micro-nano is the industry trend.
3, multi-mode sensors
Future sensors will be integrated into a variety of sensing modes, able to simultaneously sense multiple physical quantities or environmental parameters to improve the comprehensiveness and accuracy of information collection. For example, in the food field by exploring multi-mode sensors, can be realized to improve the reliability and stability of detection.