Introduction to the packaging steel strip rolling pressure measuring instrument function

Packaging steel strip rolling pressure measuring instrument function introduction pressure sensor ( Also known as the pressure head) With piezomagnetic type, resistance strain type, capacitive and inductive several, sometimes by testing the hydraulic oil pressure in cylinder to indirectly measure the rolling force. Piezomagnetic head is used in the silicon steel sheet strength, the phenomenon of magnetic line of force distribution will change and make force - Power converter. It has a rectangular, circular, annular three series to choose from, its key components are composed of many overlapping silicon steel sheet and stick together, similar to the transformer core. Piezomagnetic type pressure head has good anti-interference, reusable, large output signal, overload good performance and high measurement precision, but is expensive, only used where necessary, more domestic application is made in Sweden ASEA electric pressure magnetic head. Resistance strain type pressure head is the use of elastic element subjected to pressure elastic deformation occurs, cause to the strain gauge on the surface ( Internal wire) Deformation ( Lengthening or shortening) Resistance when made corresponding change happens, it is generally used in the rolling force detection accuracy is not very high rack. Head generally have three installation location: pressure between screw and the roller bearing, roller bearing seat and frame between the beams and the nut. Head of the specific installation position according to the mill.