Method and device for detecting a pulse-type mechanical effect on a system part

US6907368B2 · kind B2 · utility

Assignee

• Framatome ANP · DE

Inventors

• Bela Bechtold · Steinfeld (Oldenburg), DE
• Peter Jax · Hannover, DE
• Dieter Wiemerslage · Untermembach, DE

Key dates

• Filing date: Aug 23, 2004
• Grant date: Jun 14, 2005
• Expiry date: Aug 23, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G01H1/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and device for detection of a pulsed mechanical effect on a plant component includes continuously recording an operating noise in the plant component with a sensor disposed on the plant component and converting the recorded noise into a measured signal with the sensor. Then, the measured signal is subjected to a Fourier transformation. An evaluation function is derived from a number of value spectra determined in the above manner, which gives the onset of a pulsed mechanical effect on the plant component.