Metrology

News Metrology

• Quantum sensors: Measuring even more precisely
  

  Two teams of physicists led by Peter Zoller and Thomas Monz at the University of Innsbruck, Austria, have designed the first programmable quantum sensor, and tested it in the laboratory. To do so they applied techniques from quantum information processing to a measurement problem. The innovative met more

• Groundbreaking method to map the interaction between atomically thin layers
  

  When two atomically thin layers of a material are stacked and twisted slightly on top of one another, they can develop radically different properties. They may become superconducting or even develop magnetic or electronic properties due to the interaction of their two layers. The challenge for scien more

• Original kilogram replaced
  

  In addition to Ampere, Kelvin, Mol and Co., the kilogram also is now defined by a natural constant. In concrete terms, this means that the original kilogram, which has been the measure of all things for 130 years, has now served its purpose in Paris. This is made possible by the single crystals grow more

Videos Metrology

Everything different, Nothing changes

During the last several years, Mettler-Toledo has been privileged to participate in several strategic partnerships that have contributed to the newly established and highly stable kilogram definition. This video explains the background of the 1 kg redefinition and the effect this change will hav ... more

White papers Metrology

• 1 kg Redefinition: Everything different, nothing changes
  

  A new definition of the kilogram was necessary, in order to ensure the measurement unit is independent from a physical object. more

Publications Metrology

• Entropy, Vol. 20, Pages 494: SIP-Based Single Neuron Stochastic Predictive Control for Non-Gaussian Networked Control Systems with Uncertain Metrology Delays

  Entropy, Vol. 20, Pages 494: SIP-Based Single Neuron Stochastic Predictive Control for Non-Gaussian Networked Control Systems with Uncertain Metrology Delays Entropy doi: 10.3390/e20070494 Authors: Xinying Xu Yalan Zhao Mifeng Ren Lan Cheng Mingyue Gong In this paper, a novel more

• Orientation-dependent stereo Wigner time delay and electron localization in a small molecule

  Attosecond metrology of atoms has accessed the time scale of the most fundamental processes in quantum mechanics. Transferring the time-resolved photoelectric effect from atoms to molecules considerably increases experimental and theoretical challenges. Here we show that orientation- and energy-res more

• Sensors, Vol. 18, Pages 1734: Reader Architectures for Wireless Surface Acoustic Wave Sensors

  Sensors, Vol. 18, Pages 1734: Reader Architectures for Wireless Surface Acoustic Wave Sensors Sensors doi: 10.3390/s18061734 Authors: Fabian Lurz Thomas Ostertag Benedict Scheiner Robert Weigel Alexander Koelpin Wireless surface acoustic wave (SAW) sensors have some unique fea more

q&more articles Metrology

• The importance of traceability in laboratory medicine
  

  World Metrology Day is celebrated annually on the 20th of May and this year’s focus on health provides an opportunity to emphasize the importance of comparable and reliable measurement results in laboratory medicine. more

• Natural constants take center stage
  

  The 20th of May 2019 is a special day. From that day on, the old definitions of what a kilogram, a mole, an ampere and a kelvin represent, are history. The future of the International System of Units will see natural constants play the star roles. more

• The traceability of measurement results
  

  Metrological traceability is necessary for consistent, comparable and valid measurement values. As a fundamental concept of modern-day metrology, it allows measurement results to be internationally recognized and is required by norms and accreditation standards all over the world. The traceability of measurement results also carries significance for business and liability issues. more

Authors Metrology

• Prof. Dr. Joachim H. Ullrich
  

  Joachim Ullrich, born in 1956, studied geophysics and physics at the University of Frankfurt where, after graduating in 1983, he also completed his doctorate in 1987 and qualified as a professor in 1994. From 1989 to 1997 he worked as a research assistant at the Gesellschaft für Schwerionenforschung more

• Christian Müller-Schöll
  

  Christian Müller-Schöll, born in 1966, studied mechanical engineering at the University of Stuttgart, Germany, and graduated as Diploma-Engineer. At the ZHAW Zurich University of Applied Sciences he obtained a certificate for Integrated Risk Management. He headed the primary mass calibration laborat more

• Dr. Klaus Fritsch
  

  Klaus Fritsch is Manager Compliance of the Global Business Area “Laboratory Weighing” within Mettler-Toledo. He has been with Mettler-Toledo since 2005, acting as senior metrologist and consulting the industry to achieve compliance with applicable regulations when using weighing instruments. He rece more