I. Definition
Sensor is a detection device, which can sense the measured information and convert it into electrical signals and 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. The first step is to realize automatic detection and automatic control.
Second, the function of the sensor mainly includes the following aspects.
1. conversion: the sensor can convert the sensed non-electric quantity into electrical signals and other analyzable forms.
2. Detection: Sensors can detect various parameters, such as temperature, humidity, light and pressure.
3. Conversion: The sensor can convert the detected parameters into readable and analyzable signals.
4. Control: The sensor can be used as a part of the control system to control and adjust the system.
Application of sensor
1, industrial production
In industrial production, sensors are widely used in temperature control, pressure detection and material transportation to improve production efficiency and product quality. In steel production, sensors can detect the temperature and pressure in the furnace to ensure the quality and output of steel.
2. Health care
Sensors are widely used in medical and health fields, such as blood pressure monitoring, heart rate monitoring, blood sugar monitoring and so on. These sensors can monitor the patient's physiological parameters in real time, help doctors know the patient's condition in time, and provide better treatment for patients.
3. Environmental monitoring
The application of sensors in environmental monitoring is becoming more and more important, such as air quality monitoring and water quality monitoring. These sensors can monitor environmental parameters in real time, help countries and enterprises understand environmental conditions and provide data support for environmental protection.
4. Smart home
In the field of smart home, sensors are widely used in temperature control, lighting control and safety monitoring to improve the intelligence and comfort of home. In the aspect of temperature control, the sensor can detect the indoor temperature, automatically adjust the working state of air conditioning and heating, and maintain the comfort of indoor temperature.