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Analysis for Dynamic Metrology



Andrew M. Dienstfrey, Paul D. Hale


Diverse measurement contexts require estimates of time varying quantities. Ideally the measurement device responds to signal variations significantly more rapidly than the modulation of the signal itself. If so, then well-developed techniques may be used for the calibration and analysis of the measurement system. By contrast, as the characteristic timescales for signal modulation and measurement response become commensurate, the situation becomes more complicated; directly measured quantities may require correction for the finite bandwidth of the measurement system response. Toward this goal heuristic estimation rules have evolved over time and are now widely used. We rederive these common rules of thumb, and present sufficient conditions for their validity. Furthermore we investigate their quantitative accuracy in cases for which these conditions are violated. The poor performance of this heuristic analysis comes as a surprise. As an alternative, we demonstrate that regularized deconvolution analysis exhibits broader quantitative utility at the expense of increased measurement burden and analytical complexity.
Measurement Science & Technology


deconvolution, dynamic metrology, waveform metrology, waveform parameters


Dienstfrey, A. and Hale, P. (2014), Analysis for Dynamic Metrology, Measurement Science & Technology (Accessed July 14, 2024)


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Created January 30, 2014, Updated February 19, 2017