Investigation on the Noise Separation in Watt Balance Experiments

Research output: Contribution to journalArticle

Abstract

The detection of stationary and non-stationary noise in environmental vibration data is an important issue when considering the precision of the Watt balance, an electromechanical apparatus for the new definition of the kilogram in the international system of Units (SI). In this paper, the authors propose a frequency histogram method to find the structure of the stationary noise from large amount of datasets. For the non-stationary noise, the authors propose a wavelet based denoising methods to distinguish the transient events from the background "noise", to find their duration and content and to identify their location in time.

Original languageEnglish
Pages (from-to)619-622
Number of pages4
JournalKey Engineering Materials
Volume381-382
Publication statusPublished - 17 Jul 2008

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