Electrical analysis of a bolt-clamped Langevin type transducer under one-shot hitting drive

This paper investigates characteristics of electrical transient responses, including short-circuit currents and open circuit voltages, at input terminals of a bolt-clamped Langevin type (BLT) transducer under different one-shot hitting drive conditions by theoretical and experimental results. The characteristics contain maximum short-circuit currents, maximum open-circuit voltages, oscillation frequencies, time constants and dissipation energies. In doing so, an equivalent circuit model of the BLT transducer for deriving the transient responses and their characteristics is proposed first. Then, a driving and measuring system, including an one-shot force generator, an oscilloscope and a current sensor, for getting experimental results of the characteristics is constructed. The experimental results are compared with the theoretical results. Finally, effects of magnitudes of one-shot hitting forces on the characteristics of the transient responses for the BLT transducer under different drive conditions are discussed.