Uncertainty analysis of data collected using embedded magnetic particle velocity gauges

The uncertainty in particle velocity data collected using embedded magnetic gauges is presented, as is a discussion on the uncertainties in the position and rise time of each element within the gauge package. When embedded within an explosive gas gun target, magnetic particle velocity gauges can be used to record the shock propagation through the explosive and the point of turnover to detonation, as well as the shock particle velocity and subsequent reactive growth history at discrete points throughout the target. An attempt was made at an analysis of the uncertainty for each of these data types using experimental data for embedded gauges within PCTFE and CompB targets. The significant sources of uncertainty affecting the rise time, positional error and particle velocity are identified and initial thoughts on how to consider these uncertainties when analysing data are presented.

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