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Standards

Calibration services

News and Updates

worker wearing hearing protection

Exactly how loud is that jackhammer?

When a jackhammer starts pounding outside your window at 7 o’clock on a Monday morning, you might find it annoying. For the worker who is running that

Industry Impacts

A man in a hardhat standing on top of the million-pound weight stack with a person standing at the bottom.

Massive Forces for Heavy Industry

Measuring large forces, such as the thrust of a rocket engine or the deflection of an aircraft wing, requires well-calibrated force sensors. NIST’s unique

Projects and Programs

Publications

Dual Josephson Impedance Bridge: Universal bridge for impedance metrology

Author(s)
Frederic Overney, Nathan E. Flowers-Jacobs, Blaise Jeanneret, Alain Rufenacht, Anna E. Fox, Paul D. Dresselhaus, Samuel P. Benz
This paper describes the results of the calibration of a 100 pF capacitance standard performed at 1233 Hz. Two calibration chains were used. The classical

Ultrafast waveform metrology: A first international comparison

Author(s)
Mark Bieler, Paul Struszewski, Ari D. Feldman, Jeffrey A. Jargon, Paul D. Hale, Pengwei Gong, Wen Xie, Chuntao Yang, Zhigang Feng, Kejia Zhao, Zhijun Yang
We report on the first international comparison in ultrafast waveform metrology. To this end, the frequency and time responses of a photodiode with a nominal

Advanced Temperature-Control Chamber for Resistance Standards

Author(s)
Shamith U. Payagala, Alireza R. Panna, Albert F. Rigosi, Dean G. Jarrett
Calibration services for resistance metrology have continued to advance their capabilities and establish new and improved methods for maintaining standard

Tools and Instruments

Plot of Si photodiode typical responsivity in EUV

Si EUV Photodiode Transfer Standard

Silicon (Si) photodiodes are issued by NIST as transfer standard detectors throughout the extreme ultraviolet spectral region (5 nm to 254 nm). Each device is

Spectral comparator facilities

Visible to near-infrared spectral comparator facility (Vis/NIR SCF)The Vis/NIR SCF is a monochromator-based system that typically measures the spectral power
SIRCUS setup

SIRCUS facility and uncertainties

The basic SIRCUS calibration setup is shown at the right. The output from a tunable laser is sent through an intensity stabilizer, then through a 'speckle

Awards