Title :
Flexi-distortional piezoelectric sensor results
Author :
Carlson, W.B. ; Pilgrim, S.M. ; Schulze, W.A. ; Kato, Y.S. ; Frommelt, J.M.
Author_Institution :
New York State Coll. of Ceramics, Alfred Univ., NY, USA
Abstract :
A longitudinal (“RIBBIE”) form of a shear amplification sensor has been tested for amplified d15 response. The mechanically amplified flexi-distortional system may improve the dhgh figure of merit by transferring the compressional stress on the device to a lateral shear on the electroceramic element. This type of amplified system is mechanically classified as distortional and, therefore, without volume change By transforming the hydrostatic stress to transverse strain, the transverse forces can be used to develop shear strain and activate the d15 coefficient. Electrodes are placed along the sides of the sensing element. Flexi-distortional devices are tested in order to check for the limits of sensitivity in their performance
Keywords :
amplification; electric sensing devices; piezoceramics; piezoelectric transducers; compressional stress; electroceramic element; figure of merit; flexi-distortional piezoelectric sensor; lateral shear; performance sensitivity; shear amplification sensor; Capacitive sensors; Ceramics; Counting circuits; Electrodes; Force sensors; Geometry; Internal stresses; Polarization; Sensor systems; System testing;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522485