Title :
Digital time of flight measurement for ultrasonic sensors
Author :
Marioli, D. ; Narduzzi, C. ; Offelli, C. ; Petri, D. ; Sardini, E. ; Taroni, A.
Author_Institution :
Dipartimento di Autom. Ind., Brescia Univ., Italy
Abstract :
Ultrasonic sensor measurements are mostly based on the determination of the time of flight (TOF). The authors present the development of a digital algorithm for pulse-echo measurement applications, based on the use of a cross-correlation function to determine the TOF. Some experimental results are presented, and the possibility of realizing a low-cost real-time measurement system is considered
Keywords :
correlation methods; detectors; digital instrumentation; ultrasonic transducers; cross-correlation function; digital algorithm; digital measurement; pulse-echo measurement; time of flight measurement; ultrasonic sensors; Costs; Delay effects; Delay estimation; Phase measurement; Pulse measurements; Pulse modulation; Time measurement; Transmitters; Ultrasonic variables measurement; Wavelength measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1991. IMTC-91. Conference Record., 8th IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-87942-579-2
DOI :
10.1109/IMTC.1991.161575
