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Acoustic Emission in Alarm Applications

Olsson, Niclas LU and Isaksson, Niklas LU (2011) EEM820 20112
Department of Biomedical Engineering
Abstract
This thesis, issued by Securitas Direct, investigates the possibility of using acoustic emission as a basis for an intrusion alarm application. Piezoelectric elements were used to detect and characterize fractures in glass, metal and wooden materials. As a comparative study, the functionality and possibilities of using an existing glass break detector, GlassAlertTM, on wooden materials were investigated. The work was performed on selected specimens of wood and glass in a laboratory environment. The results conclude that, possibly with some software modfications, GlassAlertTMcould be used as a reliable glass break detector but even with hardware changes it could prove difficult detecting fractures in wood. It is on the other hand most... (More)
This thesis, issued by Securitas Direct, investigates the possibility of using acoustic emission as a basis for an intrusion alarm application. Piezoelectric elements were used to detect and characterize fractures in glass, metal and wooden materials. As a comparative study, the functionality and possibilities of using an existing glass break detector, GlassAlertTM, on wooden materials were investigated. The work was performed on selected specimens of wood and glass in a laboratory environment. The results conclude that, possibly with some software modfications, GlassAlertTMcould be used as a reliable glass break detector but even with hardware changes it could prove difficult detecting fractures in wood. It is on the other hand most possible to use the piezoelectric element on different materials by implementing different software in the detector structure. However, the work with piezoelectric element should be further examined before concluding that it can really be a product suited for the market. (Less)
Please use this url to cite or link to this publication:
author
Olsson, Niclas LU and Isaksson, Niklas LU
supervisor
organization
course
EEM820 20112
year
type
H2 - Master's Degree (Two Years)
subject
language
English
additional info
2011-10
id
2275161
date added to LUP
2012-01-02 13:02:39
date last changed
2014-10-08 14:47:00
@misc{2275161,
  abstract     = {This thesis, issued by Securitas Direct, investigates the possibility of using acoustic emission as a basis for an intrusion alarm application. Piezoelectric elements were used to detect and characterize fractures in glass, metal and wooden materials. As a comparative study, the functionality and possibilities of using an existing glass break detector, GlassAlertTM, on wooden materials were investigated. The work was performed on selected specimens of wood and glass in a laboratory environment. The results conclude that, possibly with some software modfications, GlassAlertTMcould be used as a reliable glass break detector but even with hardware changes it could prove difficult detecting fractures in wood. It is on the other hand most possible to use the piezoelectric element on different materials by implementing different software in the detector structure. However, the work with piezoelectric element should be further examined before concluding that it can really be a product suited for the market.},
  author       = {Olsson, Niclas and Isaksson, Niklas},
  language     = {eng},
  note         = {Student Paper},
  title        = {Acoustic Emission in Alarm Applications},
  year         = {2011},
}