Diaphragm is a circular membrane-shaped elastic sensor. Its material is composed of a layer of special fabric and a thin layer of elastomer attached to it. The thickness is usually 0.2 ~ 1.1mm. The life of the diaphragm is usually Over millions of times, when the two sides of the diaphragm are subjected to different pressures (or forces), the diaphragm moves to the side with a lower pressure, causing the center of the diaphragm to have a certain relationship with the pressure difference.
Product classification of diaphragm:
There are three types of diaphragms: flat diaphragm, vertical chain diaphragm and corrugated diaphragm.
1. The flat diaphragm can be divided into various forms according to whether the periphery is fixed and supported, whether the center is open or not, and the distribution of the force in the diaphragm area. Among them, the flat diaphragm is usually composed of a circular fixed plate of constant cross section Diaphragm.
2. The vertical diaphragm is composed of a circular plate slotted near the edge, and its elastic strain mainly occurs at the edge annular groove. This type of diaphragm is usually used to compress a strain tube or column to achieve pressure measurement.
3. The corrugated diaphragm is pressed with annular concentric ripples. In order to increase the displacement of the diaphragm center, two diaphragms can be welded together to form a diaphragm box, or a plurality of diaphragm boxes can be connected in series to form a diaphragm box group.