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parametric arrays造句

例句與造句

  1. Such a projector has advantages of broad bandwidth, narrow beamwidth, and when fully developed and carefully measured it has no obvious sidelobes : see Parametric array.
  2. The phenomenon of the parametric array, seen first experimentally by Westervelt in the 1950s, was later explained theoretically in 1960, at a meeting of the Acoustical Society of America.
  3. This formalism has been applied not only to parametric arrays [ 15 ], but also to other nonlinear acoustic effects, such as the absorption of sound by sound and to the equilibrium distribution of sound intensity spectra in cavities [ 18 ].
  4. He is especially renowned for his application of the theory of Sir Michael James Lighthill, for his important contributions to the understanding of nonlinear scattering of sound by sound, and for his discoveries of the parametric array and the laser-excited thermoacoustic array.
  5. According to Muir [ 16, p . 554 ] and Albers [ 17 ], the concept for the parametric array occurred to Dr . Westervelt while he was stationed at the London, England, branch office of the Office of Naval Research in 1951.
  6. It's difficult to find parametric arrays in a sentence. 用parametric arrays造句挺難的
  7. According to Albers [ 17 ], he ( Westervelt ) there first observed an accidental generation of low frequency sound " in air " by Captain H . J . Round ( British pioneer of the superheterodyne receiver ) via the parametric array mechanism.
  8. A very directional, but low-efficiency, type of sonar ( used by fisheries, military, and for port security ) makes use of a complex nonlinear feature of water known as non-linear sonar, the virtual transducer being known as a " parametric array ".
  9. The speed of sound is also slightly sensitive, being subject to a second-order anharmonic effect, to the sound amplitude, which means that there are non-linear propagation effects, such as the production of harmonics and mixed tones not present in the original sound ( see parametric array ).
  10. His lifetime of physics research spans other aspects of acoustics as well, include the contributions to the understanding of acoustic radiation pressure, which has applications to Acoustic levitation and other devices which exploit macrosonic phenomena and acoustic streaming, as well as to several other fields of Physics ( with example references shown here ), including General Relativity, ( primarily in the area of gravitational waves ), including Gravitational phenomena analogous to the parametric array, Cosmology, low temperature physics the Physics of Sound in Liquid Helium, and High Energy Particle Physics ( primarily in the area of cosmic ray particle detectors.

相鄰詞匯

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  5. "parametric array"造句
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  10. "parametric component"造句
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