Title :
Comment on chirp excitation of ultrasonic probes and algorithm for filtering transit times
Author :
Dooley, John W. ; Nolan, Michael J.
Author_Institution :
Dept. of Phys., Millersville Univ., PA, USA
fDate :
7/1/1995 12:00:00 AM
Abstract :
Folkestad and Mylvaganam use a chirp technique to resolve an ambiguity in time-of-flight measurements. An alternative is to trigger an oscilloscope on one cycle of the initial tone burst, then vary the frequency. In the delayed burst, the correct cycle for time-of-flight measurements remains stationary.<>
Keywords :
acoustic signal processing; chirp modulation; filtering theory; probes; ultrasonic measurement; algorithm; chirp excitation; delayed burst; filtering; oscilloscope; time-of-flight measurements; tone burst; transit times; trigger cycle; ultrasonic probes; Chirp; Delay effects; Displays; Distortion measurement; Filtering algorithms; Frequency; Oscilloscopes; Physics; Probes; Time measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
