An improved technique for measuring SAW velocity using parallel comb filters is reported. The measured velocity on the free surface of 36 degrees ST-cut quartz is 3151.9 m/s. The relative standard deviation of +or-57 p.p.m. means that this is currently the most precise technique to measure SAW velocity.
Published in:
Electronics Letters
(Volume:25
,
Issue:
20
)
Date of Publication: 28 Sept. 1989