Study on the effect of inductance for power transmission over long single-core coaxial cable

For active sonar operations, particularly airborne sonar, it is essential to transmit high power signals through a single-core coaxial cable. A projector is connected at the remote side for transmission of acoustic signal. Power loss in a coaxial cable varies logarithmically with the length. Single core coaxial cable introduces power losses due to its resistance, capacitance and inductance. If the cable is in wound condition, the inductance increases and majority of power lose is due to inductance. In order to deliver maximum power through the projector, proper tuning is required. In this paper, equivalent circuit model is implemented to analyse the effect of long cable on the performance of the acoustic transmitting system. Impedance, voltage transfer function and power across the effective resistive load of the transducer have been calculated and compared with simulation results.