What are the ways to classify sensors?
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This post was last edited by shrien on 2015-9-19 20:40. A sensor is a detection device that can sense the information being measured, and it can convert the detected information into electrical signals or other forms of information as required, in order to meet the needs for information transmission, processing, storage, display, recording, and control. It is the primary step in achieving automatic detection and automatic control. There are many ways to classify sensors, based on different principles: 1. By the physical quantity being measured: such as force, pressure, displacement, temperature, angle sensors, etc ； 2. Classified by the working principle of sensors: such as strain gauges, piezoelectric sensors, piezoresistive sensors, inductive sensors, capacitive sensors, photoelectric sensors, etc ； 3. Classified by the way in which sensors convert energy: (1) Energy conversion type: such as piezoelectric, thermocouple, photoelectric sensors, etc ； (2) Energy-control type: such as resistive, inductive, Hall effect sensors, as well as thermistors, photosensors, humidity sensors, etc ； 4. Classified by the working principle of sensors: (1) Structural types: such as inductive and capacitive sensors, etc ； (2) Physical property type: such as piezoelectric, photoelectric, various semiconductor sensors, etc ； 5. Classified by the form of the sensor’s output signal: (1) Analog: The sensor outputs an analog voltage value ； (2) Digital: The sensor outputs a digital value, such as encoder-type sensors. 6. Based on the principle of energy conversion, they can be classified as: (1) Active sensors: Active sensors convert non-electrical quantities into electrical energy, such as electromotive force sensors and charge-type sensors ； (2) Passive sensors: Passive sensor devices do not perform any energy conversion; they simply convert the non-electrical quantities being measured into electrical parameters, such as resistive, inductive, and capacitive sensors.
I’ll give you a score; thanks for the information.
Not bad. In the past, I would just do whatever came up without any detailed planning
I’ve learned it, thank you! Pretty good learning* materials :):)
“1. Classified by the physical quantity being measured: such as force, pressure, displacement, temperature, angle sensors, etc； …… 5. Classified by the form of the sensor’s output signal: (1) Analog: The sensor outputs an analog voltage value ； (2) Digital: The sensor outputs a digital value, such as encoder-type sensors. 6. Based on the principle of energy conversion, they can be classified as: (1) Active sensors: Active sensors convert non-electrical quantities into electrical energy, such as electromotive force sensors and charge-type sensors ； (2) Passive sensors: Passive sensor devices do not perform any energy conversion; they simply convert the non-electrical quantities being measured into electrical parameters, such as resistive, inductive, and capacitive sensors. ” 1, 5, and 6 are meaningful classifications for engineering purposes, while 2, 3, and 4 are academic classifications that are only relevant to the design of the instrument itself.