Product category:
Condition monitoring and vibration analysis
News Release from: aesensors.co.uk | Subject: Acoustic Emission Technology
Edited by the Processingtalk Editorial
Team on 23 September 2004
'Listening' sensors on the web
Stockport based AV Technology (AVT) have recently launched their new acoustic emission (AE) sensor web site, which provides details on their range of AE sensors and instrumentation
Stockport based AV Technology (AVT) have recently launched their new acoustic emission (AE) sensor web site, which provides details on their range of AE sensors and instrumentation AVT have been producing high quality acoustic emission sensors and instrumentation for over 20 years and have extensive experience in their design, manufacture and application
This article was originally published on Processingtalk on 19 Feb 2003 at 8.00am (UK)
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AVT report that Acoustic Emission Technology is rapidly finding increased applications across a broad spectrum of industries and the company sensors meet the most stringent demands, including use in hazardous areas where ATEX certification is mandatory.
Where necessary, AVT can supply sensors and electronics in custom designed packages to suit specific customer applications.
Acoustic emission is a stress wave produced by sudden structure changes in stressed materials.
The classic sources are defect-related deformation processes, including plastic deformation and crack growth.
AE sensors are highly sensitive listening devices that form the vital link between the structure or material under test and the analysis instrumentation.
The sensors 'listen' for the sound of failure occurring in materials and structures.
Pressure vessels, storage tanks, offshore rigs, heat exchangers, piping, reactors, lift devices and nuclear power plants are just some of the structures that can be monitored.
Crack growth due to fatigue, stress corrosion, hydrogen embrittlement and creep can be detected and located using this technology.
AE technology is also highly effective in detecting and locating high pressure leaks, monitoring product flow in pipes, and detecting the presence of contaminants - such as sand in crude oil - or warning of blocked filters.
In addition it is increasingly being used as an effective method of non-destructive testing (NDT) for the integrity of composite materials and structures.
Matrix cracking, delamination and fibre breakage are all mechanisms that can produce AE signals when stress is applied.
More bizarre applications include the detection and monitoring of insect infestations including woodworm and termites in buildings and vine weevils in plant nurseries.
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