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Title:
Realization and dissemination of linear acceleration unit at UME
Authors:
Sadikoglu, Enver; Bilgic, Eyup; Karaboece, Baki
Affiliation:
AA(TUBITAK Ulusal Metroloji Enstitusu)
Publication:
Proc. SPIE Vol. 4827, p. 288-292, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, Enrico P. Tomasini; Ed. (SPIE Homepage)
Publication Date:
05/2002
Origin:
SPIE
Abstract Copyright:
(c) 2002 SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Bibliographic Code:
2002SPIE.4827..288S

Abstract

At Turkish National Metrology Institute (UME), linear acceleration unit has been realized based on laser interferometry with different signal processing techniques. Absolute calibrations of reference accelerometers are performed by using fringe-counting and minimum point method in the frequency range from 20 to 10000 Hz. Dissemination of the linear acceleration unit to the secondary levels is carried out through a comparison calibration of vibration pick-ups by 'back-to-back' method. Traceability chain for calibrations of the vibration calibrations and measurements performed at UME has been descrbed in this paper.
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