Table 1 Matrix array datasheet

Geometry (y-axis)

3 inactive rows between each block of 256 elements

Pitch

δu = 0.5 mm ( ≈ λ at c = 1540 m/s)

Aperture

\({{\Delta }}{{{{{{{\bf{u}}}}}}}}=\left(\begin{array}{r}{{\Delta }}{u}_{x}\\ {{\Delta }}{u}_{y}\end{array}\right)=\left(\begin{array}{r}16\,{{\mbox{mm}}}\,\\ 17.5\,{{\mbox{mm}}}\,\end{array}\right)\)

Central frequency

f_c = 3 MHz

Bandwidth (at −6 dB)

80% → Δf = [1.8−4.2] MHz

Transducer directivity

θ_max = 28° at c = 1400 m/s