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Metrology

News and Updates

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PML to Help Automated Precision Incorporated Improve Laser Tracker Measurement Testing

February 25, 2015

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)

integrating sphere for light measurements

Following a New MAP for Solid-State Lighting

February 19, 2015

LED lights are notably cool. But as an industry sector, solid-state lighting (SSL) keeps heating up, with demand growing rapidly in residential, commercial, and

New Accelerometer Calibration Service to Start Soon

February 19, 2015

In a few weeks, NIST will begin offering a new, state-of-the-art calibration service for accelerometers. Based on a technique called laser interferometry, the

NIST Group Drafts Plug-and-Pay Standards

February 12, 2015

Plug-in electric vehicles make up a growing share of the nation's rolling stock and are prompting increased demand for the electrical equivalent of the corner

New Best Practices Guide Shows Unit Pricing Is a Great Deal

February 3, 2015

In an effort to help shoppers everywhere get the best value for their money, researchers at the National Institute of Standards and Technology (NIST) have

Hidden Uncertainties Uncovered in Nuclear Forensic Measurement

February 2, 2015

A little detective work by nuclear physicists has uncovered hidden uncertainties in a popular method for precisely measuring radioactive nuclides, often used to

Restoration Begins on NIST's Million-Pound Deadweight Machine

January 27, 2015

For the first time in half a century, NIST's 4.45-million newton (equivalent to one million pounds-force) deadweight machine – the largest in the world – is

Weighing Gas with Sound and Microwaves

January 23, 2015

Scientists at the National Institute of Standards and Technology (NIST) have developed a novel method to rapidly and accurately calibrate gas flow meters, such

Supercomputer Simulations Yield Method for Predicting Behavior of New Concrete Formulas

January 21, 2015

Just because concrete is the most widely used building material in human history doesn't mean it can't be improved. A recent study conducted by researchers from

NIST Sensor Could Improve One of Nano Research's Most Useful Microscopes

December 16, 2014

Spotting molecule-sized features—common in computer circuits and nanoscale devices—may become both easier and more accurate with a sensor developed at the

Ultrasonic Thermometers for Medical Dosimetry

December 16, 2014

PML researchers are exploring whether ultrasound can be used as a faster, more efficient way to take three-dimensional images of radiation dose profiles in

Lighting the Path to Smaller, Tougher Thermometers

December 15, 2014

Two new prototypes for tiny chip-based thermometers are illuminating light's potential to revolutionize the way temperature is gauged. With further development

Low Error-Rate Detector System for Telecommunications

December 2, 2014

NIST scientists have devised an experimental photon-detection system for communications with error rates far below even the most ideal conventional designs

Thin, Strong Bond for Vacuum Seal

December 2, 2014

An ultra-stable, ultra-thin bonding technology has been adapted by researchers in PML's Semiconductor and Dimensional Metrology Division for use as a super

Better Cargo Inspection Standards at Border Crossings

December 2, 2014

As part of an Interagency Agreement between NIST and the Department of Homeland Security (DHS), PML's Radiation Physics Division recently completed a series of

Taking the Wraps off NISTAR

December 2, 2014

The NIST Advanced Radiometer (NISTAR), mothballed for more than a decade, is slated to make its space debut very soon about 1.5 million kilometers sunward of

NIST Fires Up Extended Calibration Service for Laser Welding and More

December 2, 2014

NIST PML's Sources and Detectors Group has launched a new multikilowatt laser power measurement service capability for high-power lasers of the sort used by

Tiny Magnetic Sensor Deemed Attractive

November 24, 2014

Ultra-sensitive magnetic sensor technology pioneered at PML may soon be commercialized for a host of applications from detection of unexploded bombs and

Earth Science: Seeing the Surface Clearly

November 24, 2014

Satellite observation has revolutionized our understanding of terrestrial conditions and climate dynamics. But the measurement science is extremely demanding

Gauging the Hue of the Sea

November 24, 2014

The world's oceans face multiple threats, and fisheries, marine biologists, and environmental scientists need accurate and timely data about changing conditions

Protecting Vacuum Gauges: Patent Pending

November 21, 2014

PML researchers have applied for a provisional patent on a device to protect expensive "spinning-rotor" high-vacuum gauges – used as transfer standards and

World's First Photonic Pressure Sensor Outshines Traditional Mercury Standard

October 29, 2014

For almost 400 years, mercury gauges have prevailed as the most accurate way to measure pressure. Now, within weeks of seeing "first light," a novel pressure

Paul Williams and Joshua Hadler operating the NIST calibration service for high-power lasers.

NIST Launches New Calibration Service for High-Power Lasers

October 29, 2014

The National Institute of Standards and Technology (NIST) has launched a new calibration service for high-power lasers of the sort used by manufacturers for

Trouble with a Capital 'G'

October 27, 2014

NIST has taken part in a new push to address a persistent and growing problem in physics: the value of G. The Newtonian constant of gravitation, used to

Better Diagnostic Imaging for Traumatic Brain Injuries

October 23, 2014

Image-calibration technology designed and developed by scientists at the National Institute of Standards and Technology (NIST) in collaboration with the

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