Once the pressure sensor has poor anti-interference, it is easy to be interfered by the outside world, then its value is discounted, and its application range is greatly limited. Pressure sensor is one of the most widely used sensors, and it is widely used in industry, agriculture and service industry.
The pressure sensor directly contacts or approaches the measured object to obtain information. The pressure sensor and the measured object are both in the disturbed environment at the same time, and are inevitably interfered by the outside world.
Especially piezoelectric pressure sensors and capacitive pressure sensors are easily disturbed. Pressure sensor anti-interference measures generally start with the structure. Intelligent pressure sensors can also be resolved from the software.
Improving the structure of the pressure sensor can avoid the introduction of interference to a certain extent. The following methods are available: the signal processing circuit and the sensor's sensitive elements are integrated into one, that is, integrated. In this way, the signal to be transmitted is enhanced, and the anti-interference ability is improved. At the same time, because it is integrated, the introduction of interference is reduced; integrated sensors have the characteristics of compact structure and strong functions, which is conducive to improving anti-interference ability; intelligent sensors can take anti-interference measures in software from many aspects, Such as digital filtering, timing self-calibration, characteristic compensation and other measures.
Once the pressure sensor has poor anti-interference, it is easy to be interfered by the outside world, then its value is discounted, and its application range is greatly limited. Pressure sensor is one of the most widely used sensors, and it is widely used in industry, agriculture and service industry. It has applications in various environments, so anti-interference must be quite reliable. At present, the pressure sensor can be used in many environments, but in some environments, the anti-interference performance of the pressure sensor is not good enough. We must combine high-tech technology from multiple perspectives to further improve the anti-interference performance of the pressure sensor.
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