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arXiv · 1502.03488

Electromagnetic prompt response in an elastic wave cavity

A. M. Martínez-Argüello·M. Martínez-Mares·M. Cobián-Suárez·G. Báez·R. A. Méndez-Sánchez
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Abstract

A rapid, or prompt response, of an electromagnetic nature, is found in an elastic wave scattering experiment. The experiment is performed with torsional elastic waves in a quasi-one-dimensional cavity with one port, formed by a notch grooved at a certain distance from the free end of a beam. The stationary patterns are diminished using a passive vibration isolation system at the other end of the beam. The measurement of the resonances is performed with non-contact electromagnetic-acoustic transducers outside the cavity. In the Argand plane, each resonance describes a circle over a base impedance curve which comes from the electromagnetic components of the equipment. A model, based on a variation of Poisson's kernel is developed. Excellent agreement between theory and experiment is obtained.

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A. M. Martínez-Argüello, M. Martínez-Mares, M. Cobián-Suárez, G. Báez, R. A. Méndez-Sánchez. 2015-02-11. Electromagnetic prompt response in an elastic wave cavity. https://doi.org/10.1209/0295-5075/110/54003

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