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Organization
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Fluid Metrology Group (836.02) | |
| The
Fluid Metrology Group provides calibration services for fluid flow,
airspeed, liquid density and volume measurements. The Group develops
models, reference data, and novel techniques for improved measurements
of flow, temperature, and pressure. The Group uses acoustic techniques
to determine the thermodynamic and transport properties of process
gases. |
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Process Sensing Group (836.04) | |
| The
Process Sensing Group studies, develops, and applies state-of-the-art
measurement techniques and sensors for a wide range of applications
including industrial process control, homeland security, and health
care. Specific project areas include: Development/study of application-tunable,
low cost, micromachined gas sensor arrays for hazardous gas detection,
industrial process monitoring, and biomedical diagnostics · Development/study
of electrical and optical measurement methods and sensor for process
control of plasma reactors used in semiconductor manufacturing · Study
of self-assembling organic and biological films for biomedical assays
· Study of nanoparticle, nanorod, and nanotube materials for chemical
and biological sensing. |
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Thermometry Group (836.05) | |
| The
NIST Thermometry Group is responsible for the U.S. national standards
in temperature (over the range 0.65 K to 1235 K) and in humidity.
In support of this effort, we provide calibration and testing services;
improve sensors and standards; provide reference standards and data;
and support users through educational courses, papers, and consultations. |
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Pressure and Vacuum Group (836.06) | |
| The
Pressure and Vacuum Group realizes the derived SI unit of pressure,
the pascal, for the United States by developing and maintaining primary
standards for pressure and vacuum in the range from 10-7 to 108 Pa.
The Group also develops and maintains low gas flow standards in the
range of 10-13 to 10-6 mol/s. Present techniques include orifice flow
methods for 10-7 to 10 Pa, liquid manometry for 10-3 to 105 Pa, and
piston gauges from 104 to 108 Pa. It disseminates standards for pressure,
vacuum, and low gas-flow through calibration services, measurement
comparisons, and other means. The Group conducts research to develop
new measurement techniques in pressure, vacuum, and flow metrology.
We offer calibration services for ionization gauges, spinning rotor
gauges, helium leak artifacts, low gas-flow devices, piston gauges,
and pressure transducers. |
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Nanoscale and Optical Metrology Group (836.07) | |
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Develops, models,
and applies laser and scanned-probe methods to advance measurement
sciences in emerging areas of nanoscale molecular technologies,
spectroscopic monitoring, and characterization of industrial processes
and products. Develops experimental methods, theoretical and numerical
models, and reference standards pertaining to the use of scattering
and absorption spectroscopies in electronic device and sensor fabrication,
chemical manufacturing processes, and analytic services; develops
spectroscopic methods and disseminates reference data for measuring
trace gas concentration in manufacturing processes and in telluric
environments; performs experimental and numerical studies to elucidate
the mechanisms of thermal reactive processes and aerosol growth
and formation, and performs experiments to link electronic and structural
properties of molecular aggregates and films to device and sensor
performance. |