Title :
Lamb wave graphic tablet
Author :
Dieulesaint, E. ; Royer, D. ; Chaabi, Abdelhafid ; Formery, B.
Author_Institution :
Université Pierre et Marie Curie, Laboratoire d´Acoustoélectricité, Paris, France
Abstract :
A graphic sensor based on the measurement of the propagation time of an acoustic wave train is described. Lamb waves are launched in a plate of ordinary glass by piezoelectric bars bonded to the edges of the plate. They are detected at their arrival under the tip of the drawing pencil by a small piezoelectric disc placed in the pencil body. The useful area of the tablet is 19×27 cm2; the resolution is about 0.2 mm.
Keywords :
computer graphic equipment; piezoelectric devices; position measurement; surface acoustic wave devices; 27 cm; Lamb wave graphic tablet; Lamb waves; acoustic wave propagation time measurement; bonded piezoelectric bars; computer graphics; drawing pencil; graphic sensor; plate of ordinary glass; resolution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870690
