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Metrology

Thermometry metrology

News and Updates

Blog Posts

Stephen Eckel wears dark safety glasses as he peers into the complex CAVS apparatus in a darkened lab.

How Low Can Temperature Go? Lord Kelvin and the Science of Absolute Zero

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A burning workcart. There are sensors set up all around it, and the clock on the floor reads 13:59.

The New NIST Fire Calorimetry Database Is Available to Answer Your Burning Questions

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Zach Levine in his kitchen wearing an orange and white striped apron and chef's hat

Minding your Peas and Carrots: Please Try This at Home

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Events

Projects and Programs

cold atom thermometer (CAT) experiment

Atomic Thermometers

Ongoing
Approach 1 Compact Blackbody Radiation Atomic Sensor (CoBRAS) The Compact Blackbody Radiation Atomic Sensor (CoBRAS) uses a thermal vapor of atoms excited by a single laser to detect BBR. From the optically excited state, atomic population is transferred to other, nearby excited states by a
thin-film payload

Cryogenics

Ongoing
Almost all the devices developed by the Quantum Sensors Group work at temperatures below liquid helium. Sometimes, it is necessary to develop specialized cryogenics to test the devices, or to facilitate their dissemination to outside users. The cryogenics team also aims to make refrigerators more
Illustration of Doppler thermometry

Deployable Doppler Thermometry

Ongoing
Accurate temperature measurements are essential to many industrial processes, including petrochemical or pharmaceutical production and nuclear power generation. Typical process control thermometers, such as resistance temperature detectors, are known to drift over time and degrade when subject to
prototype system

Fixed Point Development: Non-Metals

Ongoing
A fixed point is a reproducible reference temperature, usually either melting of freezing of a pure substance, that allows a standardized interpolation scheme for the purposes of temperature scale dissemination. Most SPRTs are long-stem designs that require immersion-type fixed points incorporating

Publications

Tools and Instruments

Awards

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