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Metrology

News and Updates

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The UK to recognize CE-marked weighing and measuring instruments

May 1, 2024

Before Brexit when the United Kingdom (UK) was still part of the European Union (EU), products placed on the UK market were required to comply with the EU...

Moonlight Measurement on a Hawaiian Volcano

April 22, 2024

For several years, a team of researchers from the National Institute of Standards and Technology (NIST) has been building a robotically operated moonlight...

Scientist working at scientific equipment

Spotlight: The Real-World Applications of Quantum With Julia Scherschligt

April 15, 2024

For NIST physicist Julia Scherschligt, the most exciting thing about quantum is seeing the real-world applications of this science. Julia leads a group that is...

Illustration shows tiny columns of light in different colors standing vertically along circuits on a chip.

Spotlight: Chip-Scale Frequency Combs Can Be Integrated With Other Sensors

April 2, 2024

Frequency combs — specialized lasers that act like rulers to measure light — are now being brought down to a low-power, chip-scale form. NIST researchers David...

NIST Researchers Use Cellphone Compass to Measure Tiny Concentrations of Compounds Important for Human Health

April 1, 2024

Nearly every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth’s magnetic field, providing critical information for...

NIST Special Publication on WIM Systems Used in Law Enforcement Applications

April 1, 2024

Introduction According to the 2021 Fact Sheet: The Bipartisan Infrastructure Deal, one in five miles of U.S. highways and major roads and over 45,000 bridges...

Witness Testing in Official Weights and Measures Inspections

April 1, 2024

Weights and measures inspections provide a legally required, independent validation of the accuracy of commercial weighing and measuring devices; provide a...

Fun and Games: Teach and Learn Measurement System Basics with the SI Units Card Deck

April 1, 2024

It’s easy to learn the metric system with the SI Units Card Deck (NIST SP 1297), an interactive educational activity that helps learners build their skills...

Researchers develop a new type of frequency comb that promises to further boost the accuracy of time keeping

March 14, 2024

Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized time keeping, the...

Artist’s rendering of an organ-on-a-chip device

NIST-Led Working Group Developing Standards for Organ-on-a-Chip Research

February 22, 2024

When testing a new medicine, researchers must do more than assess how well that drug works. They also have to determine whether the medicine has some negative...

Microwave Detectors and Multiplexing: NIST Researchers Help Astronomers Examine the Early Universe

January 24, 2024

Perched atop a high plateau in Chile’s Atacama Desert, a long-awaited observatory is beginning to take shape: the largest suite of ground-based telescopes...

OWM Recognizes Contributions of Proficiency Testing Coordinators at RMAPs

January 3, 2024

The OWM Laboratory Metrology group operates an ISO 17043 compliant Proficiency Testing (PT) program that assesses the effectiveness of the metrology training...

People checking out in a grocery store with person seated scanning items

2024 National Price Verification Survey

January 3, 2024

NIST Office of Weights and Measures (OWM) is collaborating with the National Conference on Weights and Measures (NCWM), together with 28 state and 38 local...

Do the Bump: NIST Scientists Perfect Miniaturized Technique to Generate Precise Wavelengths of Visible Laser Light

November 28, 2023

In research, sometimes the bumpy path proves to be the best one. By creating tiny, periodic bumps in a miniature racetrack for light, researchers at the...

NIST Researchers Develop a Breakthrough COVID-19 Detection Technology

October 2, 2023

“Only connect” is the most famous line in the British novelist E. M. Forster’s writings. Forster was urging the readers of his book Howard’s End to make...

Measuring Up: NIST’s Missile Defense Transfer Radiometer

September 29, 2023

If you’re undergoing a missile attack and that missile is above the atmosphere, the best place to destroy it is while it’s still in space. To do that, you need...

NIST SP2200-03: An Evolving Regulatory Landscape for Commercial Electric Vehicle Fueling

September 28, 2023

As part of NIST OWM's Special Publication 2200 series on Legal Metrology, NIST SP 2200-03 An Evolving Regulatory Landscape for Commercial Electric Vehicle...

2023 NIST Internship Reflections

September 28, 2023

During the summer of 2023, the NIST Physical Measurement Laboratory’s ( PML) Office of Weights and Measures ( OWM) hosted four undergraduate students who were...

What is the true meaning of a “scale division” (d) versus a “verification scale division” (e)

September 28, 2023

Introduction If you are a state weights and measures official, scale manufacturer, or any other stakeholder dealing with scales used for commercial transactions...

Working Their Thermal MagIC: Digging Into the Details of an Ambitious New ‘Thermometry Camera’

September 26, 2023

Thermometers can do a lot of things: measure the temperature at the center of your perfectly braised chicken or tell you whether to keep your child home from...

Metric Week 2023: Seven Days of SI Fun

September 20, 2023

National Metric Week (October 8 to 14, 2023) is an opportunity to underscore the usefulness of metric system measurements, formally known as the International...

NIST chip containing a single-photon detector made of superconducting nanowires. Four chips like this were used in the experiment that entangled three photons.

Unity in the Photon Community

September 12, 2023

The creation and detection of single photons (the smallest units of light) has grown in a few decades from an experimental laboratory pursuit to an important...

Detangling Light-based Thermometers with Combs

August 29, 2023

Photonic thermometers, which measure temperature using light, have the potential to revolutionize temperature measurement by being faster, smaller, and more...

Four researchers pose standing in a lab, smiling and wearing safety glasses, surrouded by wires and other electronics.

NIST Demonstrates a New ‘Primary Standard’ for Measuring Ultralow Pressures

August 10, 2023

Chip manufacturing, gravitational wave detectors and quantum computers could all benefit from better ways to measure a vacuum.

Big Improvements in New Probe Design for Smokestack Emission Monitoring

July 31, 2023

Each year, to meet requirements set by the Environmental Protection Agency (EPA), coal-fired power plants must have their smokestack emissions audited by an...

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