Introduction to the characteristics of vibration sensors

vibrationspeed sensorIt is a detection device that can perceive the measured information, and convert the measured information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control. Require.

The vibration speed sensor has the characteristics of miniaturization, digitization, intelligence, multi-function, systematization, networking and so on. It is the first link to realize automatic detection and automatic control. The existence and development of sensors make objects have senses such as touch, taste and smell , making the object slowly become alive. According to its basic sensing function, it is usually divided into ten categories: thermal element, photosensitive element, gas element, force element, magnetic element, humidity element, sound element, radiation element, color elements and taste elements.

The national standard gb7665-87 defines a sensor as "a device or device that can perceive a specified measurement value and convert it into a usable signal according to a certain law (mathematical function law), usually consisting of a sensitive element and a conversion element".

The China Internet of Things School-Enterprise Alliance believes that the existence and development of sensors make objects have senses such as touch, taste and smell, and make objects gradually become alive.

A "sensor" is defined as "a device that receives power from one system and sends power, usually in another form, to a second system".

Sensors have the characteristics of miniaturization, digitization, intelligence, multi-function, systematization, and networking. It can not only promote the transformation and upgrading of traditional industries, but also establish new industries and become a new economic growth point in the 21st century. Miniaturization Based on microelectromechanical system (MEMS) technology. It has been successfully applied to silicon devices for making silicon pressure sensors.

Technical performance:

1. Under normal temperature and pressure, the leakage rate is less than or equal to 110-9Pa.m3\/S (he);

2. Insulation resistance greater than 1000mΩ\/500VDC (500V, 1000 megohm);

3. The compressive strength between the glass insulator and the base should be greater than 300mpa

4. Good welding performance.