. 2012 Jul 18;101(3):032902. doi: 10.1063/1.4737651

TABLE I.

Electromechanical properties of acceptor modified BNLKBT and PZT longitudinal bars. Frequency constant, N₃₃ was determined under short-circuit condition (measured at 1V_rms).

	N₃₃ (Hz m)	K₃₃^T	tanδ	k₃₃	d₃₃ (pC/N)	Q_m	E_c/E_i (kV/cm)
BNLKBT	2180	600	0.007	0.46	110	800	35/3
PZT4	1520	1300	0.004	0.70	370	470	14/3
PZT8	1640	1000	0.002	0.63	240	1050	19/7
PZT5A	1500	2000	0.017	0.70	500	80	15/-