S.A.W. co-ordinate sensor

S.A.W. co-ordinate sensor

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The co-ordinates of the tip of a pencil lightly pressed on a piezoelectric crystal are deduced from measurements of the time necessary for surface acoustic waves (s.a.w.) to propagate from interdigital transducers to the pencil. Graphs drawn by the pencil moving on the crystal can be stored in a computer at a fast rate. Examples of data acquisition are given.


    1. 1)
      • Davis, M.R., Ellis, T.O.: `The Rand tablet: a manmachine graphical communication device', Fall joint computer conference, 1964, Spartan Books, , p. 325.
    2. 2)
      • Teixeira, J.F., Sallen, R.P.: `The Sylvania tablet: a new approach to graphic data input', Spring joint computer conference, 1968, Thompson Books, , p. 315.
    3. 3)
      • A.E. Brenner , P. De Bruyne . A sonic pen: a digital stylus system. IEEE Trans.
    4. 4)
      • P.W. Woo . A proposal for input of hand-drawn information to a digital system. IEEE Trans. , 609 - 611
    5. 5)
      • Siemens, A.G.: n.P 21 15 367.3, 30 March 1971.
    6. 6)
      • B.A. Richardson , G.S. Kino . Probing of elastic surface waves in piezoelectric media. Appl. Phys. Lett. , 82 - 84
    7. 7)
      • A.J. Slobodnik , E.D. Conway . New high-frequency high-coupling low-beam-steering cut for acoustic surface waves on LiNbO3. Electron. Lett. , 171 - 172

Related content

This is a required field
Please enter a valid email address