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The Group provides traceability for the SI units of mass and force, measurement services, and research in support of the U.S. industry, government, and scientific community.
The group also
Provides appropriate leadership and input to embody strong representation of U.S. interests and technology at national, regional, and international standards organizations in the fields of mass and force metrology.
Carries out research and development and provides technical support in 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, custom tests, and consulting for mass and force metrology to improve NIST capabilities for accomplishing the first two items above to meet the needs and demands of U.S. industry, government, and the scientific community and to improve public health and welfare.
Provides technical support for legal metrology and to assist industry with the characterization of force transducers used in discrete parts manufacturing. deadweight machine images
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
NIST provides calibration services for force-measuring instruments by applying known forces, compression, tension or both, to the elastic transducer and
NIST maintains the national standard for mass in the form of the prototype kilograms (K4, K20, K79, K92, and K102) and provides services to support the parts of
The Dynamic Mechanical Metrology Project develops new methods to provide accuracy in, and provides calibration services for, acoustic, vibration, acceleration
Michael Gaitan, Jon C. Geist, Benjamin J. Reschovsky, Akobuije D. 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
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
Nicholas A. Vlajic, Akobuije D. Chijioke, Enrico Lucon
Instrumented impact testing allows the applicability of conventional Charpy tests to be extended toward assessing mechanical properties such as dynamic fracture
Corey A. Stambaugh, Hamza Shakeel, Maritoni A. Litorja, Joshua M. Pomeroy
The quartz crystal microbalance has been deployed across industry and academy for the monitoring of the film thickness during depositions. Over a half-a-century