System and method for conditioned based monitoring using acoustic diagnosis

• US 20020194915A1
• Filed: 05/30/2002
• Published: 12/26/2002
• Est. Priority Date: 05/30/2001
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Daniel, Cecil M., Abdel-Malek, Aiman Albert, Hedeen, Robert A., Cryer, Robert D., Handler, Larry R.
• Application Number:
  US10/158,750
• Publication Number:
  US 20020194915A1
• Time in Patent Office: Days
• US Class Current: 73/587
• CPC Class Codes: G01N 2291/014 Resonance or resonant frequency
• CPC Class Codes: G01N 29/14 using acoustic emission techniques echo of particles G01N29/046; measuring mechanical vibrations or acoustic waves in solids in general G01H1/00
• CPC Class Codes: G01N 29/40 by amplitude filtering, e.g. by applying a threshold or by gain control
• CPC Class Codes: G01N 29/42 by frequency filtering or by tuning to resonant frequency
• CPC Class Codes: G01N 29/4427 with stored values, e.g. threshold values
• CPC Class Codes: G01N 29/46 by spectral analysis, e.g. Fourier analysis or wavelet analysis spectral signal processing per se G06F17/14

Abstract

The present invention is for a system (11) or method for conditioned based monitoring of an assembly (12). The system (11) comprises a sensor (13) placed in proximity to an assembly (12). The sensor (13) generates a signal indicative of the amplitude and frequency of the ultrasonic output of the assembly (12). A processor (14) in communication with the sensor (13) receives the signal from the sensor (13) and generates spectral data representative of the ultrasound emanating from the assembly. A database (15) comprises data representative of operating parameters of the assembly (12). The processor (15) compares the spectral data to the operating parameters and generates a signal indication of the condition of the assembly (12).

Claims