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Projects/Programs

Displaying 1 - 15 of 15

Acoustic Techniques in Fluid Metrology

Ongoing
The Fluid Metrology Group leads the world in designing and using gas-filled acoustic resonators for measuring the thermodynamic temperature T, the Boltzmann

Atomic Standard for Pressure

Ongoing
NIST scientists are developing a highly accurate primary standard for pressure in the range 2 MPa to 7 MPa based on fundamental physical properties of helium

Dynamic Nanoflow Metrology

Ongoing
Current work, within the NIST on a Chip Program, includes developing microfluidic systems that improve the accuracy of flow measurements, which are fundamental

Gas properties for flow metering

Ongoing
Flow meters that rely on measuring the pressure drop across a laminar flow element can be accurately calibrated using a benign surrogate gas (such as helium or

AM Machine and Process Qualification

Ongoing
Machines and processes used to produce critical components for defense, aerospace, and medical applications must first be formally qualified. While

Material Qualification

Ongoing
The lack of repeatable process outcomes from additive manufacturing (AM) has been broadly acknowledged as an impediment to widespread implementation. While most

Optofluidic Cytometry

Ongoing
This NIST-wide collaborative project aims to improve biotechnology and medical diagnostics by increasing the resolution and precision of measurements of cells

Polymer Formulations

Completed
Our goal is to develop combinatorial and high-throughput measurement approaches for rapid characterization of the structure and phase behavior of multicomponent

Precursor Material Qualification

The lack of repeatable process outcomes from additive manufacturing (AM) has been broadly acknowledged as an impediment to widespread implementation. While most

Smoke Stack Flow Measurement

Ongoing
Presently used methods to measure CO2 and other emissions from smoke stacks have errors of 20 % or more depending on the level of swirl in the flow. The

Transient Flow Facility

Completed
Today, demonstration vehicles are refueled with hydrogen from dispensers within 3 to 5 minutes using sequential gas releases from a bank of pressurized

Understanding Flow Meters

Ongoing
Accurate flow measurements are needed for test fluids, temperatures, pressures, flows, and installation conditions that differ from those used during NIST's