Sensor esp. for mechanical vibrations, with pressure sheath, esp. for knock detector in combustion engine - comprises support device located at pressure sheath, which holds spring producing axial tension, consisting of stationary clamped support device, which is placed after insertion of detectors

摘要

The sensor includes an indirect or direct mounting, which is led through a central extrusion (12) in the pressure sheath (2), and which spans the pressure sheath with a supporting surface (3) on a component which forms an oscillator. Piezoceramic disk detector devices (6) are held radially at the outside of the pressure sheath under application of an axial tension. A support located at the pressure sheath holds a spring which produces the axial tension. The support consists of a stationary clamped support device (20), which is placed after insertion of the detector devices.