ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The magnitude versus frequency performance for a vibration acceleration sensor based onmetal-ceramic piezocomposite transducer (cymbal) was studied in this paper. The results showed that thevoltage sensitivity of this new sensor is as a function of not only the effective piezoelectric coefficient,d33e, elastic coefficient, ky, and the resonance frequency, f0, of the cymbal transducer, but also the relativedamping coefficient, ξ, of this new sensor. The relative damping coefficient, ξ, is also as a function of thecapacitance, C0, of the cymbal transducer and a function of the mass, m, of the sensor, which is used as aprestressing force. The magnitude versus frequency plot for this vibration acceleration sensor wasconstructed. The results showed that the magnitude versus frequency performance of this new sensorchanges as the relative damping coefficient, ξ, varies. The magnitude versus frequency performance is notdependent on the relative damping coefficient, ξ, when the ratio of operation frequency to the naturefrequency, ω /ω0, is less than 0.2
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.226.pdf
Permalink