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As mechanical objects, gears have been around for so long that people may take them for granted. But gears are sophisticated parts that play a vital role in
Sneezes, rain clouds, and ink jet printers: They all produce or contain liquid droplets so tiny it would take several billion of them to fill a liter bottle
Researchers at the National Institute of Standards and Technology (NIST) have developed a dramatically improved laser-based instrument that measures the
The Dimensional Measurement Services project promotes manufacturing innovation and U.S. industrial competitiveness by providing critical technology-enabling high accuracy dimensional measurements within an internationally accepted quality system. These measurements span the dimensional metrology
Objective
To develop, utilize, and analyze methods of characterizing the precursor materials in additive manufacturing in both virgin and recycled states with the goal of advancing measurement science to benefit the AM community. The components of principal interest will include the rheological
To develop, utilize, and analyze methods of characterizing the precursor materials in additive manufacturing in both virgin and recycled states with the goal of advancing measurement science to benefit the AM community. The components of principal interest will include the rheological, size
New dimensional measurement technologies provide significant benefits to industry such as increasing measurement throughput, enabling new manufacturing process (such as additive manufacturing) and providing more detailed part information for manufacturing process improvement. However, before
Craig Shakarji, Kexin Yin, Qunfen Qi, Edward Morse, Vijay Srinivasan
This paper explores a novel role for median curves and surfaces in coordinate metrology, and the techniques to compute these curves and surfaces. The role
Patrick Egan, Eric S. Stanfield, John R. Stoup, Christopher W. Meyer
Recent developments in diameter metrology at NIST have improved the dimensional characterization of piston–cylinder assemblies (PCAs) to unprecedented precision
A method is described to measure the thermal expansion coefficient of fused quartz glass. The measurement principle is to monitor the change in resonance
Since 2006, the Nanomechanical Properties Group has pioneered the use of Laser Doppler Vibrometry (LDV) to calibrate the stiffness of AFM cantilevers using the