Voice-Coils As Reciprocal Transducers in Structural Health Monitoring Applications

Abstract : The feasibility of using voice-coils as reciprocal transducers of mechanical waves is investigated. It is speculated that these transducers could be used in a seismic network for structural health monitoring purposes, transmitting relatively un-damped low frequency waveforms such as surface waves. This would permit long distances between transducers. The force generation capacity and vibration sensitivity of five types of voice-coil transducers are compared in the lower sonic spectrum. As a verification of the concept, the transducer type evaluated to be the most practical is used to measure the natural bending mode frequencies of a small concrete beam.
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Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
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Patrik Fröjd, Peter Ulriksen. Voice-Coils As Reciprocal Transducers in Structural Health Monitoring Applications. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01020381〉

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