Knock sensor e.g. for automobile engineering

摘要

A knock sensor comprising of a carrier (1), a vibration detector (2) positioned on the carrier, a seismic mass (3) which is mounted on the vibration detector (2). A nut (4) with a completely rotationally symmetrical outer surface holds the vibration detector (2) and the seismic mass (3) on the carrier (1), and a moulding material (5) with fully rotationally symmetrical outer surface, encloses the seismic mass (3) and the nut (4). The vibration detector (2) is specifically a piezo-element.