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Search Publications by: Christopher W. Meyer (Fed)

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Displaying 76 - 100 of 107

The Kelvin and Temperature Measurements

January 1, 2001
Author(s)
Billy W. Mangum, G T. Furukawa, Kenneth G. Kreider, Christopher W. Meyer, Dean C. Ripple, Gregory F. Strouse, Weston L. Tew, Robert D. Saunders, Bettye C. Johnson, Howard W. Yoon, Michael R. Moldover, Charles E. Gibson
The International Temperature Scale of 1990 (ITS90) is defined from 0.65 K upwards to the highest temperature measurable by spectral radiation thermometry, the radiation thermometry being based on the Planck radiation law. Part I of this paper describes

Characterization of Lightpipe Radiation Thermometers for the NIST Test Bed

September 1, 2000
Author(s)
Benjamin K. Tsai, Christopher W. Meyer, Francis J. Lovas
For the past decade, lightpipe radiation theromoeters (LPRTs) have become the sensors of choice in rapid thermal processing (RTP) applications because of their non-intrusiveness and ease of use. In this paper, we discuss the importance of proper LPRT

Calibration of Lightpipe Radiation Thermometers in a RTP Tool at 1000 C

April 1, 2000
Author(s)
Kenneth G. Kreider, D P. DeWitt, Christopher W. Meyer, Vincent P. Scheuerman
We are developing an instrumented calibration wafer for radiometric temperature measurements in rapid thermal processing (RTP) that uses Pt/Pd wire and noble metal thin-film thermocouples that are welded to thin-film pads of Pt. The Pt/Pd wire

Non-Uniquenes of the ITS-90 From 13.8033 K to 24.5561 K

June 1, 1999
Author(s)
Christopher W. Meyer, Gregory F. Strouse, Weston L. Tew
The International Temperature Scale of 1990 (ITS-90) is defined in the region 3.0 K to 24.5561 K by an interpolating constant volume gas thermometer (ICVGT) that is calibrated at three specified fixed points. From 13.8033 K to 1234.93 K the ITS-90 is

Primary Acoustic Thermometry From 217 K to 303 K

April 1, 1999
Author(s)
Michael R. Moldover, S J. Boyes, A R. Goodwin, Christopher W. Meyer
We report new values for the difference (T T 90) between Kelvin thermodynamic temperatures T and ITS-90, the International Temperature Scale of 1990. The new data span the range 217 K {less then or equal to} T 303 K with standard uncertainties of 0.6 mK. A