Sensor (English name: transducer/sensor) is a detection device that can sense the measured information, and can transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the Requirements for the transmission, processing, storage, display, recording and control of information. It is the first link to realize automatic detection and automatic control.

An encoder is a device that compiles and converts a signal (such as a bit stream) or data into a signal form that can be used for communication, transmission and storage. The encoder converts angular displacement or linear displacement into electrical signals, the former is called a code wheel, and the latter is called a code ruler.

An encoder is a rotary sensor that converts the rotational displacement into a series of digital pulse signals. These pulses can be used to control angular displacement. If the encoder is combined with a rack or screw, it can also be used to measure linear displacement.

Sensitivity: The ratio of the output increment to the applied load increment. Typically mV of rated output per 1V of input. When our company's products are matched with other companies' products, their sensitivity coefficients must be the same.

Nonlinearity: This is a parameter that characterizes how precise the correspondence between the voltage signal output by this sensor and the load is.

Repeatability: Repeatability indicates whether the output value of the sensor can be repeated and consistent when the same load is applied repeatedly under the same conditions. This feature is more important and can better reflect the quality of the sensor. The description of the repeatability error in the national standard: the repeatability error can be measured simultaneously with the nonlinearity. The repeatability error (R) of the sensor is calculated as follows: R=ΔθR/θn×100%. ΔθR--the maximum difference (mv) between the actual output signal values measured 3 times on the same test point

A sensor is a detection device that can sense the measured information, and can transform the sensed 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 and display. , recording and control requirements. Common are temperature sensor, humidity sensor, pressure sensor, displacement sensor, flow sensor, liquid level sensor, force sensor, acceleration sensor, torque sensor, electrical sensor, magnetic sensor, photoelectric sensor, potential sensor, electric charge sensors, semiconductor sensors, etc.