Study on the Equivalent Circuit of Uniform Cross Section Acoustic Waveguide
Shiqing Liu, Shuyu Lin · Journal of Southwest China Normal University · 2005
Based on the theory of electric transmission line and the electroacoustic analogy method, the T-type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis. Also, the relationship between the input impedance and load impedance of the waveguide is discussed. It is proposed a new method for analyzing the impedance of the waveguide, which makes the engineering design of acoustic waveguide more easy and simple as well as convenient.