Acoustic Emission in Alarm Applications
(2011) EEM820 20112Department 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:
http://lup.lub.lu.se/student-papers/record/2275161
- author
- Olsson, Niclas LU and Isaksson, Niklas LU
- supervisor
- organization
- course
- EEM820 20112
- year
- 2011
- 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}}, }