ACOUSTIC SENSING DEVICE, SYSTEM AND METHOD FOR MONITORING EMISSIONS FROM MACHINERY

• US 20090095082A1
• Filed: 10/30/2008
• Published: 04/16/2009
• Est. Priority Date: 09/16/2002
• Status: Active Grant

• Current Assignee: Radiaulics, Inc.
• Original Assignee: Radiaulics, Inc.
• Inventors: Komninos, Nikolaos I.
• Granted Patent: US 8,245,576 B2
• Time in Patent Office: Days
• US Class Current: 73/587
• CPC Class Codes: G01H 1/00 Measuring characteristics of vibrations in solids by using direct conduction to the detector G01H9/00, G01H11/00 take precedence
• CPC Class Codes: G01N 2291/101 one transducer
• 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 29/4427 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

Acoustic sensing devices, systems and methods are provided for monitoring emissions from machinery. Representative is an acoustic sensing device for transmitting to a measuring instrumentation detection signals indicative of sound wave levels from the machinery. A housing assembly is constructed for removable attachment between a surface mounting region of the machinery and the measuring instrument to define a coupled state. An acoustic emissions (AE) sensor is located in the housing assembly'"'"'s interior and detects sound waves propagating through the surface mounting region to produce detection signals for processing. A mounting adapter may be employed to interface the housing assembly to the machinery'"'"'s surface mounting region.

Claims

1. A method for monitoring emissions from machinery, comprising:

(a) mounting a plurality of sensing devices each to a respective surface mounting region of the machinery, wherein at least one of said sensing devices is an acoustic sensing device operative in response to sound waves propagating through its respective surface mounting region to produce corresponding acoustic detection signals;

(b) selectively interfacing each of said sensing devices with measuring instrumentation;

(c) selectively receiving from each of said sensing devices, during a plurality of associated reading intervals, corresponding sets of readings, whereby the sets of readings from said acoustic sensing device corresponds to sound wave levels propagating through its respective surface mounting region during its associated reading intervals; and

(d) displaying perceptible output on said measuring instrumentation corresponding to the associated sets of readings received by the measuring instrumentation from each of said sensing devices.