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Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have proposed a novel method for finding dark matter, the cosmos’s
It images single atoms. It maps atomic-scale hills and valleys on metal and insulating surfaces. And it records the flow of current across atom-thin materials
Just as a journey of 1,000 miles begins with a single step, the deformations and fractures that cause catastrophic failure in materials begin with a few
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
The Dynamic Mechanical Metrology Project develops new methods to provide accuracy in, and provides calibration services for, acoustic, vibration, acceleration
The application of atomic force microscopy to go beyond topographic imaging and accurately measure nanomechanical properties of materials often depends on being
Mingkang Wang, Rui Zhang, Bojan R. Ilic, Vladimir A. Aksyuk, Yuxiang Liu
Microfabricated mechanical resonators enable precision measurement and transduction techniques from atomic force microscopy and inertial sensing to magnetometry
Instrumented impact testing allows the applicability of conventional Charpy tests to be extended toward assessing mechanical properties such as dynamic fracture
John H. Lehman, Paul A. Williams, Daniel W. Rahn, Kyle A. Rogers
We present a measurement scheme and instrumentation for quantifying laser power by means of photon momentum. The optical design is optimized such that the
Ivan Ryger, Alexandra B. Artusio-Glimpse, Paul A. Williams, Gordon A. Shaw, Matthew T. Simons, Christopher L. Holloway, John H. Lehman
We demonstrate a compact electromagnetic power sensor based on force effects of electromagnetic radiation onto a highly reflective mirror surface. Unlike the