Pressure-sensor assembly, and corresponding device and insert

Abstract

A pressure-sensor assembly () for detecting the pressure of a fluid comprises: —a pressure-sensitive component (), having a generally cup-shaped sensor body (), which includes a bottom portion () and a peripheral portion () that define an axial cavity (C, C), the bottom portion () including an elastically deformable membrane part, which closes the axial cavity (C, C) at one end of the sensor body (), and the peripheral portion () having a distal edge opposite to the bottom portion (), which delimits an inlet of the axial cavity (C, C), the bottom portion () having associated thereto at least one element for detecting deformation of the membrane part; and —a compensation element (), configured for compensating possible variations of volume of the fluid, comprising at least one compensation body (), made of a first elastically deformable or compressible material, and a core () fixed on which is the at least one compensation body (), the core () being made of a second material stiffer than the first material. The sensor body () and the compensation element () are configured as distinct parts, and at least one first portion () of the compensation element () is configured for coupling with elastic interference on the sensor body (), in such a way that the pressure-sensitive component () and the compensation element () can be handled as a single unit.