Node in three-section waveguides driven by Terfenol-D

Charles B. Bright

doi:10.1117/12.388182

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12 June 2000 Node in three-section waveguides driven by Terfenol-D

Charles B. Bright

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Proceedings Volume 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies; (2000) https://doi.org/10.1117/12.388182
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

For given displacement amplification ratios, resonant 3- section waveguides are geometrically more compact than simpler taper-only displacement-amplifying waveguides. For resonant 3-section exponential waveguides, an explicit solution is derived for finding the node and the maximum dynamic stress in each section. The node serves as the mounting location for waveguides driven by quarter- wavelength magnetostrictive TERFENOL-D transducers with reaction mass. The waveguide tip is loaded by water begin atomized and propelled for industrial purposes. The relatively broad bandwidth of TERFENOL-D can be exploited to reduce overall sensitivity to impedance mismatches between the waveguide tip and the load.

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Charles B. Bright "Node in three-section waveguides driven by Terfenol-D", Proc. SPIE 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies, (12 June 2000); https://doi.org/10.1117/12.388182

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