Hamstad, M.
(1995),
Development of Practical Wideband High-Fidelity Acoustic Emission Sensors, International Conference on Trends in Optical Nondestructive Testing
(Accessed April 18, 2024)
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Development of Practical Wideband High-Fidelity Acoustic Emission Sensors
Published
Author(s)
Abstract
The development of a series of wideband acoustic emission (AE) sensor/preamplifier systems is described. Key design factors are discussed along with the actual design and characterization of the sensors. These new sensors with integral amplification are out-of-plane, displacement response sensors nearly independent of frequency over a range from as low as 30 to 50 kHz up to 1.2 MHz. The sensor design includes electromagnetic shielding and mechanical protection of the sensitive elements. More importantly, these practical sensors have signal-to-noise sensitivity that is equivalent to typical commercial resonant sensor/preamplifier systems operating from 100 kHz to 300 kHz. A mounting fixture for the sensors has also been developed.Citation
International Conference on Trends in Optical Nondestructive Testing
Volume
2456
Pub Type
Journals
Keywords
acoustic emission sensor, displacement sensors, low noise transducer, wideband transducer
Citation
Created June 1, 1995, Updated February 17, 2017