A Treatise on Acoustic Radiation: Acoustic transducersNaval Research Laboratory, 1981 - Acoustic radiation pressure |
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Common terms and phrases
1-junction acoustic impedance acoustic pressure admittance analysis antiresonant applied beam bond graph branch C₁ capacitance causality cavity coefficient compliance component connected constant constructed coordinates cotree cutset diaphragm displacement drive e-driver e₁ elastic electric field electrical impedance electrodes electromechanical electromechanical coupling elements energy equations equivalent circuit F₁ fiber filter flow force F formula function Helmholtz resonator hydrophone inductance input laser linear load loop M₁ magnetic field magnetostrictive mass matrix measured mechanical impedance mechanical resonance motion noise optical output parallel parameters phase photodetector piezoactive piezoceramic piezoelectric plane wave polarized polymer PVDF R₁ radiation ratio relation representation resonant frequency secondary Sect sensor series position shown in Fig shunt position signal stress surface terminals transducer transformer units V₁ variables vector vibrator voltage volume velocity Young's modulus
Popular passages
Page i - Entered) REPORT DOCUMENTATION PAGE READ INSTRUCTIONS BEFORE COMPLETING FORM I. REPORT NUMBER 2. GOVT ACCESSION NO TP 81-3 3.
Page 308 - Lumped Parameter Models of Acoustic Filters Using Normal Modes and Bond Graphs," Journal of Sound and Vibration, Vol. 42, No. 4, pp. 437-446. LaMasters, GD, 1972, "Fuel Injection— Another Tool for Emission Control," SAE Paper No. 720679. Margolis, DL, 1979a, "Bond Graphs for Distributed System Models Admitting Mixed Causal Inputs,
Page 72 - Curves showing variation of primary and secondary current with frequency for different coefficients of coupling when the primary and secondary are separately tuned to the same frequency.
Page 341 - Cross sections of cylindrical piezoelectric polymer receivers, (a) membrane microphone formed by fixing a taut film over an air-filled cylindrical chamber. (b) membrane hydrophone with an oil-filled chamber containing plastic compliant tubes to provide compliance while withstanding hydrostatic pressure, (c) Flexural disk hydrophone backed by air.
Page 396 - Signal to Noise Ratios in Photoelectric Mixing," Proc. IRE 49, 1960 (1961). [3] Ref. [1] p. VI-9. [4] R. Urick, "Principles of Underwater Sound for Engineers,
Page 76 - Curves illustrating the effect produced on the shape of the response curve by detuning primary and secondary circuits when the primary and secondary ciruits do not have identical Q\ [17].
Page 388 - The symbols (x. >, +) are data points obtained from the two scattering instruments at the Visibility Laboratory. The solid curves are computer plots of 0(0), calculated from the raw data [Petzold, 1972]. Ref. "Suspended Solids In Water," RJ Gibbs, ed., Plenum Press, p.
Page 239 - Z0 then the mechanical equations can be represented by an equivalent circuit in the form of a T-network, Fig. 2.21.3. This network equivalent is valid for all frequency ranges provided the vibrator is "shortenough" (generally a fraction of a wavelength) . Several cases of Fig.
Page 14 - Ji(ka) ka 2(ka)2 in which /, is a Bessel function of the first kind, and K\ is a special function defined by Raleigh [18].
Page 365 - Double cavity configuration. L, light source coupled to the fiber; R; reflectors; D, photodetector S servo-control electronics [after Ref.