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The Group performs the research and development needed to provide traceability, measurement solutions, and calibration services to the US industry, government, and academia in the areas of mass, force, and the dynamic mechanical quantities of acoustics, force, and vibration.
The group also
Represents the interests of the US in the national, regional, and international metrology communities, through participation and/or leadership in consultative committees, working groups, and standards organizations to guarantee US competitiveness and the equivalence of standards worldwide.
Carries out research and development and provides technical support in legal metrology, measurement science, instrumentation design, development, and testing to develop new physical measurement services, new realization of the units, new transfer standards, new methods and data, and custom tests to improve NIST capabilities in providing traceability and leadership to meet the needs and demands of U.S. industry, government, and the scientific community.
The Pilot Study — read 2016 article details — was completed in late 2016 and the Final Report was published on the BIPM website (PDF) in June of 2017. The main
Measuring large forces, such as the thrust of a rocket engine or the deflection of an aircraft wing, requires well-calibrated force sensors. NIST’s unique
Physical disassembly of the 4.45 MN (1,000,000 lbf) deadweight machine (DWM) began in FY15 in order to address material galling that developed in key structural
The small mass and force metrology project at NIST leverages the redefinition of the International System of Units (SI) to scale mass and force with electrical
As part of a revised SI system of units adopted in 2019, the kilogram was redefined to be realized in terms of Planck's constant. By experimental necessity
We provide experimental results showing that the calibration of tri-axis accelerometers based on the device's intrinsic properties alleviates the uncertainty
Michael Gaitan, Jon C. Geist, Benjamin J. Reschovsky, Akobuije Chijioke
We report on a new approach to characterize the performance of a laser Doppler vibrometer (LDV). The method uses two acousto-optic modulators (AOMs) to
Lautaro D. Cilenti, Akobuije Chijioke, Balakumar Balachandran
Characterization and quantification of dynamic measurements is an ongoing area of research in the metrological community as new calibration methods are being
Alireza R. Panna, Mattias Kruskopf, Albert F. Rigosi, Martina Marzano, Dinesh K. Patel, Shamith U. Payagala, Dean G. Jarrett, David B. Newell, Randolph E. Elmquist