Table 2.

Theoretical formula of sensors.

	BCS	ACM	Type 8001
Acceleration Response Model	$\frac{Z_r}{Z_M+Z_r}\left(1\right)$	$-$	$\frac{Z_r}{Z_M+Z_r}\left(2\right)$
Pressure Response Model	$\frac{Z_r}{Z_M+Z_r}{A}_0\left(\omega \right)\frac{m}{S}\left(3\right)$	$\frac{Z_r}{(Z_m+Z_M)+Z_r}{A}_0\left(\omega \right)\left(4\right)$	$-$