A Generalized Method for Flat Plates Impact Detection and Location

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In the last years, many analyses from acoustic signal processing have been used for different applications. In most cases, these sensor systems are based on the determination of times of flight for signals from every transducer. This paper presents a flat plate generalization method for impact detection and location over linear links or bars-based structures. The use of three piezoelectric sensors allow to achieve the position and impact time while the use of additional sensors lets cover a larger area of detection and avoid wrong timing difference measurements. An experimental setup and some experimental results are briefly presented.

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171-175

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March 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Checka N. A system for tracking and characterising acoustic impacts on large interactive surfaces,. MS Thesis, MIT, (2001).

Google Scholar

[2] Knapp CH and Carter GC. The generalized correlation method for estimation of time delay,. IEEE Trans. Acoustic, Speech and Signal processing, Vol. 24, 1976, pp.320-327.

DOI: 10.1109/tassp.1976.1162830

Google Scholar

[3] Ding Y, Reuben RL and Steel JA. A new method for waveform analysis for estimating AE wave arrival times using wavelet decomposition,. NDT & E International, Vol. 37, 2004, pp.279-290.

DOI: 10.1016/j.ndteint.2003.10.006

Google Scholar

[4] D. Cortázar, V. Feliu y J.A. Somolinos Acoustic Impact Detector for Mechanical Structures,. Patent ES 2. 273. 536 B1. (2008).

Google Scholar

[5] J.A. Somolinos, R. Morales. A. Garcia and C. Moron. Piezoelectric Sensors System for Impact Detecting. 8th European Conference on Magnetic Sensors and Actuators. EMSA 2010. Bodrum, (Turkey) July (2010).

Google Scholar

[6] Somolinos, J.A., Morales, R., Moron, C. and Garcia, A. Amorphous piezoresistive and piezoelectric sensors for robotics applications, Physica Status Solidi. Vol. 8. Issue 11-12, pp.3175-3178. March (2011).

DOI: 10.1002/pssc.201000711

Google Scholar

[7] León, C. Electronic System for Impact Detection and Location, (In Spanish). Master Thesis. E.T.S. Ingenieros Industriales UCLM 03-09-103735.

Google Scholar

[8] Díaz, J. Tuning and Application of a New System for Impact Detection And Location, (In Spanish). Master Thesis. E.T.S. Ingenieros Industriales UCLM 05-09-200512.

Google Scholar