Modeling and Simulation of Ultrasonic System

The Numerical simulations- i.e. the computers solved the problems by simulating theoretical models- is part of new technology has emerged long side pure theory and experiment during the last few decades. Computer simulations can bridge the gap between analysis and experiment. This paper provides modeling and simulation of ultrasonic system for material characterization. The system includes the transmitter, transmitting transducer, receiver, receiving transducer, material for characterization. This paper also provides the analogy between transducer and lossy transmission line. The use of PSPICE provides facility for simulation of complex set of excitation electronics, the ultrasonic transducer, the material under investigation, and the receiving electronics. Initially the analogy between transducer and lossy transmission line is discussed. The properties for lossy transmission lines were calculated for 5MHz transducer. Thus the velocity and attenuation for different materials is obtained. The experiment was successfully done and satisfactory results were obtained.