Inductance type water pressure sensor

Abstract

The invention belongs to the technical field of sensors, and particularly relates to an inductance type water pressure sensor which comprises a base, a base body, a coil and a magnetic core. A first hole is formed in the center of the base, an annular first groove is formed in the bottom of the base with the first hole as the circle center, and a set of arc-shaped T-shaped grooves are evenly formed in the first groove; sliding blocks are arranged in the T-shaped grooves in a sleeving manner; and by arranging the protruding blocks, the base body continuously enters the mounting hole through the arc-shaped plate, the surface of the pipeline rubs with the protruding blocks to make the protruding blocks move, the protruding blocks move to drive the rotating shaft to move till the rotating shaft makes contact with the pipeline, the protruding blocks are located on the two sides of the pipeline at the moment, the base body is mounted at the top of the base through bolts, and the first block slides into the second hole till the first block makes contact with the protruding blocks, so that the first blocks are arranged to limit the convex blocks, so that the pipeline is locked between the adjacent convex blocks, the stability of the base after installation is improved, and the accuracy of pressure detection is further improved.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to an inductive water pressure sensor. Background technique [0002] A sensor is a device that receives a signal or stimulus and reacts, and can convert the physical or chemical quantity to be measured into another corresponding output device. Among them, the inductive sensor is a device that uses the change of coil self-inductance or mutual inductance to realize non-electrical measurement. Using inductive sensors, parameters such as displacement, pressure, vibration, strain, and flow can be measured. In most applications like water pumps, such as household booster pumps, the water pump causes the pipeline to vibrate, which reduces the stability of the sensor on the pipeline and reduces the reliability of the sensor. [0003] There is also a patent in the prior art about a technical solution for an inductive water pressure sensor. For example, a Chinese patent with application num...

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Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology, the vibration generated by the water pump in the pipeline will drive the sensor to shake on the pipeline, resulting in a large error in the detection data of the sensor due to the influence of the shaking during the detection process, thereby reducing the reliability of the sensor. problem, the present invention proposes an inductive water pressure sensor

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