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Metrology

News and Updates

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World Metrology Day 2014: Measurements and the Global Energy Challenge

May 19, 2014

The theme of this year's World Metrology Day, " Measurements and the Global Energy Challenge," speaks to one of the defining issues of our time. One that is as...

PML Leadership Prominent Throughout Newly Released ITRS

April 24, 2014

When the semiconductor industry received the eagerly awaited annual update of the International Technology Roadmap for Semiconductors (ITRS) [1] at the end of...

Now You See It: Electromagnetically Induced Transparency in a Silicon Nitride Optomechanical Crystal

April 9, 2014

Researchers from the NIST Center for Nanoscale Science and Technology (CNST) have observed electromagnetically induced transparency at room temperature and...

Developing a 'Gold Standard' for Hall Resistance

April 7, 2014

PML researchers have developed a novel method of fabricating graphene-based microdevices that may hasten the arrival of a new generation of standards for...

Essay: How to Weigh Everything from Atoms to Apples Using the Revised SI

March 26, 2014

Very soon, the International System of Units (SI) may be revised to define the unit of mass in terms of a fixed value of the Planck constant, h. That move would...

NIST Gives Astronomers a Better Ruler in the Search for Extrasolar Planets

March 26, 2014

Researchers at the National Institute of Standards and Technology (NIST) have rejuvenated a technique for finding planets near distant stars.* New measurements...

PML Scientists Develop 3D SEM Metrology for 10 nm Structures

March 21, 2014

PML researchers have devised an idea for determining the three-dimensional shape of features as small as 10 nanometers wide. The model-based method compares...

Portable Frequency Comb Rolls Out of the Lab

March 20, 2014

A PML team is hitting the road with a fine-tooth comb. Scientists in the Quantum Electronics and Photonics Division have devised a portable optical frequency...

Perspective: Weights and Measures Week 2014 — Making Sure the Marketplace Measures Up

February 25, 2014

Commentary by Mark Esser. Every year, we hear scattered stories of inaccurate measures. Gas pumps, grocery scales, grocery scanners, incorrectly labeled...

Toward New Precision in Measuring the Neutron Lifetime

February 3, 2014

A team of PML scientists and collaborators* has achieved a five-fold reduction in the dominant uncertainty in an experiment that measured the mean lifetime of...

double-paddle oscillator in its mounting, seen from below

Surface Detail: Oscillator to Explore Secrets of Mass Variation

January 30, 2014

It might seem that when the world agrees on a new definition of the kilogram based on a fixed value of a physical constant, as is expected soon, no one will...

NIST March Meeting Showcases Advanced Technologies to Help Manage the Nation's Infrastructure

January 29, 2014

Tiny, self-powered sensors that can be embedded in bridge structures and networked wirelessly to continuously monitor the structure's health. Little fly-by-wire...

Nearly Everyone Uses Piezoelectrics. Be Nice to Know How They Work.

January 29, 2014

Piezoelectrics—materials that can change mechanical stress to electricity and back again—are everywhere in modern life. Computer hard drives. Loud speakers...

PML Measurements Drive Development of New Length Artifact

January 17, 2014

Laser trackers are state-of-the-art measuring machines that are capable of measuring the dimensions of large objects (up to approximately 120 meters in length)...

New Value for the Planck Constant May Hasten Electronic Kilogram

January 14, 2014

After two years of difficult and meticulous work examining, refurbishing, and testing the aging workhorse watt balance called NIST-3, PML researchers have used...

NIST Analysis Helps the U.S. Chemical Safety Board Pinpoint Root Cause of Pressure Vessel Failure

January 7, 2014

In 2009, a violent rupture of a 50-foot pressure vessel used to produce synthetic crystals at the NDK Crystal facility in Belvidere, Illinois fatally injured a...

Val Miller demonstrates volume instrument.

OWM Sees Progress in Proficiency Testing

December 23, 2013

Americans rely on many measurements of mass and volume in their daily lives, from weighing broccoli at the grocery store to putting gas in the family car. In...

NIST Programs for Undergraduates, Teachers, Precision Measurements Announced

December 17, 2013

The National Institute of Standards and Technology (NIST) is advertising available grants in a pair of programs aimed at undergraduate students and middle...

Controllable Mode Competition in a Phonon Laser

November 19, 2013

Using a novel realization of a "phonon laser," scientists at PML and the Joint Quantum Institute (JQI) have observed and learned to control a process called...

SIM Metrology School at NIST

November 4, 2013

They spanned 140 degrees of latitude – from Canada to Chile – and varied widely in age and experience. But their goal was the same: To improve their...

Force to be Reckoned With: NIST Measures Laser Power with Portable Scale

October 22, 2013

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a novel method for measuring laser power by reflecting the light off...

NIST Carbon Nanotube Chips Go Ballooning for Climate Science

October 22, 2013

A huge plastic balloon floated high in the skies over New Mexico on Sept. 29, 2013, carrying instruments to collect climate-related test data with the help of...

Quantum Voltage Standard Delivered to BIPM

October 17, 2013

A PML team has delivered a state-of-the-art 10 V voltage standard to the International Bureau of Weights and Measures (BIPM), where it will serve as the...

NIST Unveils Prototype Video Imaging System for Remote Detection of Hidden Threats

September 30, 2013

By adapting superconducting technology used in advanced telescope cameras, researchers at the National Institute of Standards and Technology (NIST) have built a...

NIST Awards $7.4 Million in Grants for Additive Manufacturing Research

September 19, 2013

The National Institute of Standards and Technology (NIST) today announced the award of two grants totaling $7.4 million to fund research projects aimed at...

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