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Metrology

News and Updates

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Laser Radiometry: Powering Up

June 11, 2012

"If you made a long distance phone call or sent an email today, or if you're wearing clothes, then you are benefiting directly from our laser services," says

Looking At and Into the Ultra-Small

June 8, 2012

NIST is taking a huge step into the ultra-small with the Precision Imaging Facility (PIF) now being outfitted in new Precision Measurement Laboratory on the

Picture of the results of the Standard Test Method for Measuring the Ignition Strength of Cigarettes (ASTM E2187)

Nationwide Adoption of NIST-Developed Test Predicted to Cut Death Toll Due to Cigarette-Caused Fires

May 29, 2012

In 2003, New York became the first state requiring cigarettes sold within its borders to pass a fire safety standard based on a test developed by the National

NIST engineer Kate Remley holds two Personal Alert Safety System (PASS) devices with wireless alarm capability.

Improving Safety Measures and Measures of Safety for World Metrology Day 2012

May 17, 2012

World Metrology Day celebrates the signing of the Treaty of the Meter on May 20, 1875.* By signing the treaty, representatives from 17 nations, including the

New Point for Dew Point

May 10, 2012

Peter Huang of the Sensor Science Division's Temperature and Humidity group has devised a new humidity generator that enables dew-point measurements up to 98 °C

New Vacuum Calibration System: Better, Faster, and Cheaper

May 8, 2012

In the vacuum business, less is more—except when it comes to accuracy. Industries that depend on high-quality, carefully monitored vacuum for sensitive

Beaming Up on the Way to Space

May 7, 2012

Space may be the final frontier. But often a few trips to PML are necessary before things can get off the ground. One recent case in point is the test of an

Teaching the Next Generation of Scientists: PML Reaches out at USA Science and Engineering Festival

May 7, 2012

For the second consecutive year, PML played a major role in NIST's contributions to the Science and Engineering Festival in Washington DC. The annual event

Petroleum Volume: Getting Calibrations in the Can

May 7, 2012

The volume of oil and oil products moving through America's pipelines, waterways, roads, and rails borders on the unimaginable. "Look at it this way," says John

NIST Mini-sensor Measures Magnetic Activity in Human Brain

April 19, 2012

A miniature atom-based magnetic sensor developed by the National Institute of Standards and Technology (NIST) has passed an important research milestone by

Hyperspectral Imaging: Shedding New Light on Wound Healing

April 9, 2012

Clinicians who treat severe wounds may soon have powerful new diagnostic tools in the form of hyperspectral imaging (HSI) devices, calibrated to new NIST

Micromechanical Mirror Performs Under Pressure...Of Light

April 6, 2012

A team of scientists from PML's Quantum Measurement Division has designed and tested a novel device [1] that may lead to substantial progress in the new and

Schematic diagram of the fast light experiment.

First, Fast, and Faster

April 6, 2012

Scientists in PML's Quantum Measurement Division have produced the first superluminal light pulses made by using a technique called four-wave mixing, creating

This colorized photo shows trap cleaning in progress.

Argon Cleaning Helps Trapped Ions Chill Out

February 27, 2012

The reliability of trapped-ion quantum information systems – a promising candidate technology for an eventual quantum computer – can be dramatically improved by

Celebrating Another Golden Year in Legal Metrology with Weights and Measures Week 2012

February 21, 2012

Weights and measures are indispensable. From the grocery store to the gas pump, all kinds of consumer products are sold by some measurable quantity, whether it

Shopper's Special: NIST Seeking Consumer, Industry Input on Unit Pricing Labels

February 21, 2012

The Office of Weights and Measures (OWM) of the National Institute of Standards and Technology (NIST) is seeking volunteers to participate in a workgroup that

Laying the Groundwork for 3D Stacked Integrated Circuits

February 17, 2012

Could three-dimensional stacked integrated circuits (3DS-ICs) be the next big innovation in technology development? Imagine layer upon layer of integrated

PML's Pernstich Develops Open-Source Software to Automate Test Equipment

February 6, 2012

A free, easily customizable software program for automating test equipment via GPIB or RS232 bus may sound too good to be true, especially for smaller companies

Toward a Global Microwave Standard

February 6, 2012

Much of what is known about decadal climate change – and much of what appears on the evening weather forecast as well – comes from satellite-based remote

Colorized micrograph of multi-walled carbon nanotubes

Prototype NIST Device Measures Absolute Optical Power in Fiber at Nanowatt Levels

December 20, 2011

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a prototype device capable of absolute measurements of optical power

UV Lithography: Taking Extreme Measures

December 9, 2011

Sometime soon, microchip fabricators will take the next major step in the relentless reduction of feature size, from the current minimum of 22 nm down to 10 nm

Powerful NIST Detectors on Hawaiian Telescope to Probe Origins of Stars, Planets and Galaxies

December 6, 2011

The world's largest submillimeter camera—based on superconducting technology designed by the National Institute of Standards and Technology (NIST)—is now ready

Optically pumped GaN nanowire laser shown glowing orange.

Bright Future for GaN Nanowires

November 25, 2011

The gallium nitride nanowires grown by PML scientists may only be a few tenths of a micrometer in diameter, but they promise a very wide range of applications

Adding Up Photons with a TES

November 14, 2011

Scientists have demonstrated that a superconducting detector called a transition edge sensor (TES) is capable of counting the number of as many as 1,000 photons

Redefining the SI Base Units

November 2, 2011

Note: Much more recent information is available about redefinition of the SI units. For a comprehensive general overview, see How to Weigh Everything from

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