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Flowing water optical power meter design, operation, and uncertainty for multi-kilowatt laser power measurements

Published

Author(s)

Paul A. Williams, Joshua A. Hadler, Christopher L. Cromer, Xiaoyu X. Li, John H. Lehman

Abstract

A flowing water optical power meter for measuring multi-kilowatt laser emission has been built and operated. The design and operational details of this primary standard are described, and a full uncertainty analysis is provided covering the measurement range from 1 kW to 10 kW with an expanded uncertainty of 1.2 %. Validating measurements at 5 kW and 10 kW show agreement with other measurement techniques to within the measurement uncertainty.
Citation
Metrologia
Volume
55
Issue
3

Keywords

Radiometry, laser, flowing water optical power meter, heat balance calorimetry

Citation

Williams, P. , Hadler, J. , Cromer, C. , Li, X. and Lehman, J. (2018), Flowing water optical power meter design, operation, and uncertainty for multi-kilowatt laser power measurements, Metrologia, [online], https://doi.org/10.1088/1681-7575/aaae78 (Accessed June 18, 2021)
Created May 9, 2018, Updated November 10, 2018