Vibration pickup with a pressure sleeve

US6220078A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hartmut Brammer · Leinfelden, DE
• Wolfgang Schmidt
• Holger Krebs · Erdmannhausen, DE

Key dates

• Filing date: Jun 2, 1999
• Grant date: Apr 24, 2001
• Expiry date: Jun 2, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L23/222
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A vibration pickup has a pressure sleeve mountable directly or indirectly on a component causing vibrations, a spring, a sensor element which is held radially outwardly on the pressure sleeve with an axial tensioning by the spring and is electrically contactable, a wedge element provided between an inner periphery of the spring and an outer wall of the pressure sleeve, the wedge element being introduced axially with its wedge-shaped tipped side and radially clamps the spring in an end position and also holds components with the sensor element under an axial tensioning.