Water Level Sensing in a Steel Vessel Using A₀ and Quasi-Scholte Waves

Figure 2

Theoretical dispersion curves: (a) and (b) are group and phase velocities for a 1.2 mm thick steel plate; (c) and (d) are group and phase velocities for a 1.2 mm thick steel plate with one side in water.

(a)

(b)

(c)

(d)