Metrology Related – Page 12

JILA Atomic Clocks Measure Einstein’s General Relativity at Millimeter Scale | NIST News

February 16, 2022 Office

JILA physicists have measured Albert Einstein’s theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, separated by just a millimeter or […]

New record for comparison of distant ultrastable lasers | NPL News

January 11, 2022 Office

Using cutting-edge optical frequency standards developed at PTB and NPL, the team has been able to demonstrate that their measurement precision is preserved even when transmitted across thousands of kilometers of optical fibre. Source: New […]

UCF Develops the World’s First Optical Oscilloscope | University of Central Florida News

December 15, 2021 Office

A team from UCF has developed the world’s first optical oscilloscope, an instrument that is able to measure the electric field of light. The device converts light oscillations into electrical signals, much like hospital monitors […]

PT100 Calculator | Fluke Calibration

November 24, 2021 Office

Use this PT100 Calculator to calculate temperature and resistance values from the standard PT100 curves. The online calculator will produce a temperature value from an entered resistance or calculate resistance and thermometer sensitivity values from […]

Parliament backs metrology partnership within Horizon Europe | News | European Parliament

November 24, 2021 Office

The partnership on metrology – the science of measurement – also aims to support sales of new innovative products and services through the use and adoption of new metrology capabilities in emerging technologies and to […]

Uncertainty Calculator | SandiaPSL.github.io

November 17, 2021 Office

The PSL Uncertainty Calculator is developed by the Primary Standards Lab at Sandia National Laboratories to calculate the combined uncertainty of a system of multiple input parameters. In general, a measurement value is calculated from […]

Diode lasers for optical metrology | PTB.de

November 4, 2021 Office

PTBnews 03.2021 — In collaboration with an industrial partner, PTB has developed and assessed a very compact wavelength standard. This standard is based on a diode laser whose frequency is stabilized to transitions of the […]

On the path to a “nanometer standard” | PTB.de

November 4, 2021 Office

PTBnews 3.2021 — At PTB, absolute length measurements on a single-crystal silicon gauge block have been performed using imaging interferometry. These measurements have a smaller measurement uncertainty than all previous measurements. They provide more accurate […]