Apparatus for performance testing acceleration sensors

US5373722A · kind A · utility

Assignee

• Temic Telefunken Microelectronik · DE

Inventors

• Hans Spies · Brackenheim, DE
• Horst Laucht · Bruckmühl, DE
• Peter Hora · Schrobenhausen, DE
• Alfons Woehrl · Schrobenhausen, DE

Key dates

• Filing date: Oct 6, 1992
• Grant date: Dec 20, 1994
• Expiry date: Oct 6, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P21/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Acceleration sensors in a vehicular safety system with at least two acceleration sensors are stimulated by an electrical or sound excitation so that one of the sensors functions as a body sound transmitter, while the other(s) receive(s) these signals and vice versa. The performance which includes a calibration check, and the coupling to the housing structure are evaluated through a signal processing circuit. The safety system including its output trigger stage, remains switched-on during testing.