Guiding characteristics of an acoustic standing wave in a piezoelectric tube
- University of Texas at Austin, Department of Physics, Austin, Texas 78712 (United States)
Propagation of an He{endash}Ne laser beam through a gas filled piezoelectric tube is used to characterize the guiding properties of a radially driven acoustic standing wave. Impedance matched driving at 1 MHz of the 5-cm-long piezotube yields radial density perturbations of 0.005 at 40 V driving voltage. The frequency spectrum of the cavity resonances is used to measure the damping of the standing wave due to shear viscosity in Ar. {copyright} {ital 1998 American Institute of Physics.}
- OSTI ID:
- 664651
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 20 Vol. 73; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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