Ultrasonic transducers are generally piezoelectric transducer which works on the principle of piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. While transmitting, the ultrasonic transducer converts the electrical input signal to mechanical vibrations which results in generation of ultrasound, and while receiving, the ultrasonic transducer converts the mechanical vibrations cause by ultrasound hitting the transducer’s active element back into electrical energy