Classification of sensors: digital sensors, biosensors, physical type sensors, analog type sensors, chemical type sensors.
1, digital sensors
Digital sensors are sensors that convert measured non-electrical quantities into digital output signals, which can be used to measure physical quantities such as temperature, pressure, water level, etc., and convert these data into electrical output signals, digital sensors by converting non-electrical quantities into digital signals, which can be easily processed and analyzed.
2, biosensors
Biosensors are sensors that utilize the characteristics of various organisms or biomaterials to detect and identify the chemical composition of the organism, biosensors play an important role in organisms, and can be used for the monitoring and diagnosis of vital signs and can also be used for environmental monitoring and food safety.
3, physical type sensor
Physical type sensor is a kind of sensor using physical effects for measurement, it is through the measurement of material subjected to force, heat, light, electricity, magnetism and acoustic and other physical properties of the changes to measure the corresponding physical quantities, the physical type sensor has a solid-state devices, containing semiconductor, dielectric, ferroelectric and other sensitive materials.
4, analog sensors
Analog sensors are sensors whose output signals are converted into continuously changing voltages or currents, for example, if you need to work with digital displays or digital computers, you need to be equipped with an analog/digital converter, analog sensors are mainly used for non-electrical quantities are converted into analog electrical signals, such as the measured temperature, pressure and so on.
5, chemical-type sensors
Chemical-type sensors is a chemical reaction using the principle of sensors, mainly used to measure the composition and concentration of chemical substances. It has the advantages of high sensitivity, high precision, good stability, etc., widely used in industrial production, environmental monitoring, medical diagnosis and other fields.