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Physical Measurement Laboratory / Sensor Science Division

Fluid Metrology Group

Projects/Programs

Displaying 1 - 8 of 8
The NIST wind tunnel

Air Speed Metrology

NIST's versatile wind tunnel is used to calibrate customers' air speed sensors and to conduct research on the design of novel anemometers, the responses of
shaded quasi sphere

Atomic Standard for Pressure

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
two-capillary viscometer

Gas properties for flow metering

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
Diagram of NIST's Smoke Stack Simulator test bed

Smoke Stack Simulator

Today, inconsistencies between measured CO2 emissions and emissions calculated from coal consumption are on the order of 10% to 20%. The objective of this
Transient flow facility for vehicle refueling

Transient Flow Facility

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

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