... , ultrasonic cleaning, ultrasonic motors and so on. Impedance Analyzer is characterized by easy of use, combine indicators with graphics ... by the impedance analyzer, including the resonant frequency Fs, the anti-resonant frequency Fp, half-power point of F1 ... L1, free capacitor CT, the free dielectric constant, mechanical quality factor Qm, electromechanical coupling coefficient Keff , Kp, K31, K33 ...