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Introduction to the application principle of hydraulic pressure sensor

Hydraulic pressure sensor is a kind of pressure sensor commonly used in industrial practice. It is widely used in various industrial self-control environments, involving oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, Power, ship, machine tool, pipeline air supply, boiler negative pressure and many other industries.
The working principle of the hydraulic pressure sensor is that the pressure acts directly on the diaphragm of the sensor, so that the diaphragm generates a micro-displacement proportional to the pressure of the medium, the resistance of the sensor changes, and the change is detected by an electronic circuit, and the output is converted. A standard signal corresponding to this pressure. The closed loop control of the force is usually done by a pressure sensor. But not every pressure sensor in a particular hydraulic system can do the job. When the control spool suddenly moves, a spike of several times the system operating pressure is formed in a very short period of time. In typical mobile machinery and industrial hydraulics, any pressure sensor will be destroyed quickly if it is not designed with such extreme conditions in mind. In addition, the pressure sensor is also subjected to uninterrupted pressure pulsations from the hydraulic pump. Although it is not as severe as a pressure spike, long-term work can cause damage to the sensor.
1. Sensor: A device or device that can be measured and converted into an available output signal according to a certain rule. It usually consists of sensitive components and conversion components.
1 Sensitive component refers to the part of the sensor that can be directly (or responsively) measured.
The 2 conversion element refers to a more sensitive response in the sensor and converts the measurement into an electrical signal portion that is transmitted and/or measured.
3 When the output is the specified standard signal, it is called the transmitter.

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