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Understand the principle of pressure sensors in one second

  • Categories:Industry News
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  • Time of issue:2020-04-03 09:29
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(Summary description)In the human social environment, pressure is everywhere, so pressure sensors have naturally become a kind of sensor commonly used in industrial practice. It is commonly used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production self-control, Aerospace, military, petrochemical, oil well, power, ship, machine tool, pipeline and many other industries.

Understand the principle of pressure sensors in one second

(Summary description)In the human social environment, pressure is everywhere, so pressure sensors have naturally become a kind of sensor commonly used in industrial practice. It is commonly used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production self-control, Aerospace, military, petrochemical, oil well, power, ship, machine tool, pipeline and many other industries.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-04-03 09:29
  • Views:
Information
In the human social environment, pressure is everywhere, so pressure sensors have naturally become a kind of sensor commonly used in industrial practice. It is commonly used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production self-control, Aerospace, military, petrochemical, oil well, power, ship, machine tool, pipeline and many other industries.
 
A pressure sensor is a sensor that converts pressure into an electrical signal output. While describing the pressure sensor, we must derive the concept of a pressure transmitter. The constant sensor consists of two parts, namely the sensitive element and the conversion element. Among them, the sensitive element refers to the part in the sensor that can directly sense or respond to the measurement; the conversion element refers to the part in the sensor that converts the measured strain felt or responded by the sensitive element into an electrical signal suitable for transmission or measurement.
 
Because the output signal of the sensor is generally weak, it needs to be modulated and amplified. With the development of integrated technology, people also install this part of the circuit and power circuits inside the sensor together. This way, the sensor can
The output is easy to process and the available signals are transmitted. When the previous technology is relatively backward, the so-called sensor refers to the above-mentioned sensitive element, and the transmitter is the above-mentioned conversion element.    
 
A pressure sensor generally refers to a sensitive element that converts a changed pressure signal into a correspondingly changed resistance signal or capacitance signal, such as a piezoresistive element, a piezocapacitive element, and the like. The pressure transmitter generally refers to the pressure sensitive element and conditioning
The entire set of circuit units for measuring pressure, which are composed of circuits, can directly output standard voltage signals or current signals that have a linear relationship with pressure for direct acquisition by instruments, PLCs, acquisition cards and other equipment.
 
There are many types of pressure sensors, such as resistance strain gauge pressure sensors, semiconductor strain gauge pressure sensors, piezoresistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, resonant pressure sensors, and so on.
At present, pressure sensors that are more commonly used are: diffused silicon piezoresistive pressure sensors, ceramic piezoresistive pressure sensors, sputtered film pressure sensors, capacitive pressure sensors, and high temperature resistant sapphire pressure sensors.
 
But the more common application is the piezoresistive pressure sensor, which has a very low price and high accuracy and good linearity.

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