Sensor is a device that can sense and respond to changes in the external environment, temperature, humidity, light, pressure, and convert them into readable and analyzable signals. Sensors are widely used in a variety of fields, industrial production, medical and health, environmental monitoring, smart home.
A, definition
Sensor is a detection device, can feel the measured information, and in accordance with certain laws transformed into electrical signals and other required forms of information output to meet the transmission, processing, storage, display, recording and control of information requirements. The realization of automatic detection and automatic control of the first link.
Two, the function of the sensor mainly includes the following aspects
1, transformation: the sensor can feel the non-electricity is converted into electrical signals and other forms can be analyzed.
2, detection: sensors can detect a variety of parameters, temperature, humidity, light, pressure.
3, conversion: the sensor can convert the detected parameters into readable and analyzable signals.
4, control: the sensor can be used as part of the control system to realize the control and regulation of the system.
Applications of sensors
1, industrial production
In industrial production, sensors are widely used in temperature control, pressure detection, material transportation of a number of links to improve production efficiency and product quality. In steel production, sensors can detect the temperature and pressure inside the furnace to ensure the quality and yield of steel.
2, medical and health
Sensors in the field of medical and health applications are also becoming more and more widespread, blood pressure monitoring, heart rate monitoring, blood glucose monitoring. These sensors can monitor the patient's physiological parameters in real time, to help doctors understand the patient's condition in a timely manner, to provide patients with better treatment programs.
3, environmental monitoring
Sensors in the field of environmental monitoring applications are also increasingly important, air quality monitoring, water quality monitoring. These sensors can monitor environmental parameters in real time, to help the state and enterprises to understand the environmental situation, to provide data support for environmental protection.
4, smart home
In the field of smart home, sensors are widely used in temperature control, lighting control, security monitoring in a number of aspects, to improve the degree of intelligence and comfort of the home. In terms of temperature control, the sensor can detect the indoor temperature, automatically adjust the working status of air conditioning and heating, to maintain the comfort of the indoor temperature.