An air-filled standing wave tube is terminated with an unknown specific acoustic impedance Z. At a...
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An air-filled standing wave tube is terminated with an unknown specific acoustic impedance Z. At a frequency of 1143HZ the SWR is 1.4. As the distance d from the terminated is increased, the pressure amplitude increases monotonically until it reaches a maximum at d=0.05m. Find the following. (a) Wavelength (b) Reflection coefficient R (in polar form R=pe) (c) Impedance Z, (Real and imaginary parts) An air-filled standing wave tube is terminated with an unknown specific acoustic impedance Z. At a frequency of 1143HZ the SWR is 1.4. As the distance d from the terminated is increased, the pressure amplitude increases monotonically until it reaches a maximum at d=0.05m. Find the following. (a) Wavelength (b) Reflection coefficient R (in polar form R=pe) (c) Impedance Z, (Real and imaginary parts)
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