Lam, K.H. , Lin, D.M. and Chan, H.L.W. (2007) Lead-free acoustic emission sensors. Review of Scientific Instruments, 78(11), 115109. (doi: 10.1063/1.2814024) (PMID:18052506)
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Abstract
Acoustic emission (AE) sensors have been fabricated using both soft- and hard-type lead-free (Na0.5K0.5)NbO3-based ceramics. The acoustic and electromechanical properties of the ceramics have been determined using the resonance technique. The lead-free AE sensors were calibrated using a laser source and compared to a commercial sensor. A lead zirconate titanate (PZT) 5H ceramics AE sensor has also been fabricated and calibrated for comparison. It was found that the sensitivity of lead-free AE sensors is comparable to that of the lead-based PZT sensor. To evaluate the sensors for potential application, they have been used in the detection of AE in an impact test. The lead-free sensors can reproduce AE signals accurately without giving artifacts and have potential use in commercial AE systems.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Lam, Dr Koko |
| Authors: | Lam, K.H., Lin, D.M., and Chan, H.L.W. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Review of Scientific Instruments |
| Publisher: | American Institute of Physics |
| ISSN: | 0034-6748 |
| ISSN (Online): | 1089-7623 |
| Related URLs: |
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