Active damping of ultrasonic receiving sensors through engineered pressure waves

Transducers for ultrasonic sensing and measurement are often operated with a short burst signal, example few cycles at specific excitation voltage frequency on the generating transducer. The vibration response of narrowband transducer in detection is usually dominated by resonant ringing, severely affecting its ability to detect two or more signals arriving receiver similar times. Prior researchers have focused strategies damp ringing transmission, create temporally output pressure wave. However, if receiving narrowband, incident waves can significant this transducer, irrespective how This reduce accuracy common processes, as long multiple wave arrivals be difficult distinguish from each other. In research, method damping transducers reception demonstrated using flexural operate effectively transmitter ultrasound, due use automotive applications, most existence. An existing mathematical analog used guide design an engineered actively Experimental measurements show that reduced 80%, without significantly compromising sensitivity only suitable driving waveform