THE METHODS FOR THE CALIBRATION OF VIBRATION PICKUPS BY LASER INTERFEROMETRY - PART III - PHASE-LAG EVALUATION

Authors
USUDA T DOBOSZ M KUROSAWA T
Citation
T. Usuda et al., THE METHODS FOR THE CALIBRATION OF VIBRATION PICKUPS BY LASER INTERFEROMETRY - PART III - PHASE-LAG EVALUATION, Measurement science & technology (Print), 9(10), 1998, pp. 1672-1677
Citations number
8
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology (Print) → ACNP
ISSN journal
09570233
Volume
9
Issue
10
Year of publication
1998
Pages
1672 - 1677
Database
ISI
SICI code
0957-0233(1998)9:10<1672:TMFTCO>2.0.ZU;2-G
Abstract
The calibration of vibration pick-ups by the sine-approximation method has been examined. This method which uses a modified Michelson-type l aser interferometer has been proposed as an ISO draft standard. The ev aluation procedure, the experimental set-up and calculation of the unc ertainty in the phase lag are reported. A piezoelectric-type vibration pick-up has been evaluated experimentally. Expanded uncertainties of less than +/-5 x 10(-3) rad in phase-lag evaluation have been obtained in the experiment.