Electrical / electromagnetic metrology

News and Updates

View through a circular opening into a dark interior. A red dot floats in the darkness.

New Atom-Based Thermometer Measures Temperature More Accurately

January 23, 2025

This atomic thermometer provides accurate measurements “out of the box” because it relies on the basic principles of quantum physics.

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

NIST Scientists Develop Novel CT Scan Device for Integrated Circuits

April 14, 2023

Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have developed a novel tabletop device that takes three

Events

NIST Time and Frequency July 29-31, 2025 NIST Boulder

2025 NIST Time and Frequency Seminar

Tue, Jul 29 - Thu, Jul 31 2025

NIST Time and Frequency Division's annual seminar covers precision clocks and oscillators, atomic frequency standards

Projects and Programs

Electric Vehicle Supply Equipment (EVSE) Program: Standards, Services, and Training

Ongoing

Weights and measures authorities in each U.S. state and local jurisdiction are responsible for the testing and official inspection of electric vehicle (EV) chargers, specifically the measurement devices that deliver electricity as fuel within commercial EV chargers. These devices are commonly

Measuring Intermolecular Interactions with Electro-Acoustic Spectroscopy

Ongoing

We have a number of opportunities to collaborate with us. See below for details. What does this project aim to do for the chemical industry? Many industrial processes depend on the intermolecular environment- the solvents and ions that surround a molecule. These interactions impact separations

Small array of transistors designed for single device integration.

Integrated CMOS Testbeds for Nanoelectronics and Machine Learning

Ongoing

The increasingly complex device requirements for next-generation computing architectures such as neuromorphic computing or nanoelectronic machine learning accelerators present challenges for researchers across the spectrum of institutions, from small businesses and universities to government

10 V programmable Josephson voltage standard (PJVS) and (right) PJVS cryopackaged chip, which are disseminated by the NIST standard reference instrument (SRI) program.

Quantum Voltage Project

Ongoing

Researchers in the Quantum Voltage Project develop and disseminate highly accurate instruments that exploit the quantum mechanical properties of superconductive devices known as Josephson junctions (JJs), as well as measurement techniques and best-practices for using these instruments. When a JJ is

Publications

Glass microwave microfluidic devices for broadband characterization of diverse fluids

November 15, 2024

Author(s)

Jacob Pawlik, Tomasz Karpisz, Yasaman Kazemipour, Nicholas Derimow, Sarah Evans, Bryan Bosworth, Christian Long, Nathan Orloff, James Booth, Angela Stelson

We demonstrate a glass microwave microfluidic device for determining the permittivity of a wide range of liquid chemicals from 100 MHz to 10 GHz with relatively

Compact Homodyne Extrapolation System (CHEXS)

October 27, 2024

Author(s)

Joshua Gordon, Benjamin Moser

We present on a novel gain extrapolation antenna range, the Compact Homodyne Extrapolation System (CHEXS), that can achieve absolute antenna gain measurements

Enhanced Gain Extrapolation Technique: a third-order scattering approach for high-accuracy antenna gain, sparse sampling, at Fresnel distances

October 17, 2024

Author(s)

Joshua Gordon, Benjamin Moser

In this paper we describe an enhanced three-antenna gain extrapolation technique that allows one to determine antenna gain with significantly fewer data points

VHF Josephson Arbitrary Waveform Synthesizer

October 1, 2024

Author(s)

Jeremy Thomas, Nathan Flowers-Jacobs, Anna Fox, Akim Babenko, Samuel Benz, Paul Dresselhaus

We report on the design, fabrication, and measurement of a Very High Frequency band Josephson Arbitrary Waveform Synthesizer (VHF-JAWS) at frequencies up to 50

Tools and Instruments

hotograph of the custom high temperature (>300 K) scanning instrument that measures electrical resistivity and Seebeck coefficient

High Throughput (Combinatorial) Screening Tool for Characterization of Thin Film Thermoelectrics as a Function Temperature

Description High-throughput (combinatorial) metrologies have evolved as a useful approach to rapidly determine the composition-structure-property relationships

Apparatus for the Measurement of High Temperature Thermoelectric Transport Properties

Description The Seebeck coefficient is a widely measured transport property that provides fundamental information on charge carrier transport and the electronic

Molecular Beam Epitaxy (MBE) Facility

The Applied Physics Division utilizes a fully automated, dual-chamber molecular beam epitaxy (MBE) system for the growth of advanced, compound semiconductor