What are the output modes of the sensor?

Sensor is a kind of detection device that can sense the measured information, and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. This is the first step to realize automatic detection and automatic control. Sensors can be classified in many ways according to different principles:

1, according to measured physical quantities such as force, pressure, displacement, temperature, angle sensor, etc. ;

2. According to the working principle of sensors, they are divided into strain sensors, piezoelectric sensors, piezoresistive sensors, inductive sensors, capacitive sensors, photoelectric sensors and so on.

3, according to the way of sensor energy conversion points:

(1) energy conversion type: such as piezoelectric type, thermocouple, photoelectric transducer, etc.

(2) Energy control type: sensors such as resistance type, inductance type and Hall type, as well as thermistors, photoresistors and humidity-sensitive resistors;

4. According to the working mechanism of the sensor:

(1) structural type: such as inductive and capacitive sensors;

(2) Physical properties: such as piezoelectric, photoelectric and various semiconductor sensors;

5, according to the form of sensor output signal points:

(1) simulation formula: the sensor output is an analog voltage;

(2) Digital: The output of the sensor is digital, such as encoder sensor.

6, according to the principle of energy conversion can be divided into:

(1) active sensor: active sensor converts non-electric quantity into electric energy, such as electromotive force and charge sensor;

(2) Passive sensors: Passive program sensors have no energy conversion function, but only convert measured non-electric quantities into electric parameters, such as resistive, inductive and luminous sensors.