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Conferences

New Approach for Thermoacoustic Refrigeration

Author(s)
J Xiao, Ray Radebaugh
We suggest a new design configuration for thermoacoustic refrigeration that optimises the refrigeration effect caused by both the standing wave and the...

Polarimetric Calibration for Monostatic Radar Systems

Author(s)
Lorant A. Muth, Paul D. Domich, B. M. Welsh, A. L. Buterbaugh, B. M. Kent
Calibration standards for radar systems are being developed cooperatively at NIST and DoD measurement facilities. Our goals are to develop standard procedures...

Extension of Voltage Range for Power and Energy Calibrations

Author(s)
O. Petersons, Thomas L. Nelson, Nile M. Oldham, Gerald FitzPatrick
A special purpose ac voltage divider system having voltage ratios of 600 V, 480 V, 360 V, and 240 V to 120 V has been developed to extend the voltage range of...

Experimental Noise Sources in the NIST Watt Balance

Author(s)
Richard L. Steiner, David B. Newell, Edwin R. Williams
The present NIST Watt Balance has a relative combined standard uncertainty of about 145 nW/W. The final results of this phase of the experiment are presented...

Fabrication of High-Value Standard Resistors

Author(s)
Ronald F. Dziuba, Dean G. Jarrett, L. L. Scott, Andrew J. Secula
The National Institute of Standards and Technology (NIST) has fabricated stable, transportable 10 MΩ} and 1 GΩ} standard resistors for use in an international...

Charge Offset and Noise in SET Transistors

Author(s)
Neil M. Zimmerman, J. L. Cobb
We report on several previous and ongoing investigations into the source of, and the amelioration of, the charge offset noise in SET (single-electron tunneling)...

A System to Measure Current Transducer Performance

Author(s)
Bryan C. Waltrip, Thomas L. Nelson
A special purpose ac current transducer measurement system capable of intercomparing transducers with ac output voltage ratios from 1:1 to 50:1 has been...

Calibration of Dissipation Factor Standards

Author(s)
Eric D. Simmon, Gerald FitzPatrick, O. Petersons
Dissipation factor (D) standards obtained by connecting a shielded three-terminal capacitor in series with a shielded resistor have been developed for...

Resistance Measurement Assurance Program at NIST

Author(s)
Ronald F. Dziuba, June E. Sims
The National Institute of Standards and Technology (NIST) offers resistance Measurement Assurance Program (MAP) transfers at the 1 ohm} and 10 kohm} levels, to...
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