What started out as an ordinary instrument calibration task using silver turned into research gold for scientists at Pacific Northwest National Laboratory. Contradicting nearly 40 years of measurement history, the team observed ...
Condensed Matter
Dec 20, 2010
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Every full moon, Landsat 8 turns its back on Earth. As the satellite's orbit takes it to the nighttime side of the planet, Landsat 8 pivots to point at the moon. It scans the distant lunar surface multiple times, then flips ...
Space Exploration
Jul 12, 2014
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2
Recently, researchers from the Optical Remote Sensing Center of the Anhui Institute of Optics and Fine Mechanics (AIOFM), Hefei Institutes of Physical Science (HFIPS) have successfully improved the accuracy of directional ...
Optics & Photonics
Dec 30, 2020
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137
The International Commission on Illumination (CIE) has published Technical Report CIE 251:2023 LED Reference Spectrum for Photometer Calibration, related to laboratory measurements of LED lighting.
Optics & Photonics
Feb 17, 2023
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66
A new publication from Opto-Electronic Advances discusses low-loss chip-scale programmable silicon photonic processors.
Optics & Photonics
Nov 7, 2022
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15
(Phys.org)—NASA's Mars rover Curiosity stepped through activities on Sept. 7, 8 and 9 designed to check and characterize precision movements by the rover's robotic arm and use of tools on the arm.
Space Exploration
Sep 11, 2012
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Beginning March 1, 2011, the National Institute of Standards and Technology will no longer provide calibration services for mercury thermometers. The cessation of the mercury thermometer calibration program marks the end ...
General Physics
Feb 2, 2011
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When used at high temperatures (above 1100 °C) thermocouples are prone to substantial calibration drift. To gauge the extent of the drift, for example, in an industrial setting, it is highly desirable for the thermocouple ...
General Physics
Oct 2, 2009
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The National Institute of Standards and Technology has unveiled a method for calibrating entire waveforms -- graphical shapes showing how electrical signals vary over time -- rather than just parts of waveforms as is current ...
General Physics
Oct 7, 2009
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A scientist from the National Physical Laboratory (NPL) has helped Fluke Precision Measurement to prove the effectiveness of a unique new tool for calibrating radio frequency (RF) devices.
Engineering
Jun 22, 2009
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