Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition

4.19. Plane circular piston in infinite baffle

The specific impedance in N·s/m³ of the air load on one side of a plane piston mounted in an infinite baffle (see Fig. 13.3) and vibrating sinusoidally is given by Eqs. (13.116)–(13.118). Plots of the real and imaginary parts of

Z s ρ 0 c = R s + j X s ρ 0 c

(4.145)

are shown in Fig. 4.35 as a function of ka. Similar graphs of the real and imaginary parts of the specific admittance

Y s ρ 0 c = ρ 0 c ( G s + j B s ) = ρ 0 c ( R s R s 2 + X X s − j X s R s 2 + X s 2 )

(4.146)

are shown in Fig. 4.36