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You searched on: Author: gregory strouse

Displaying records 41 to 50 of 63 records.
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41. Standard Reference Material 1750: Standard Platinum Resistance Thermometers, 13.8033 K to 429.7485 K
Series: Special Publication (NIST SP)
Report Number: 260-139
Published: 11/1/2001
Authors: Weston Leo Tew, Gregory F Strouse
Abstract: The Standard Platinum Resistance Thermometer (SPRT) is defined by the International Temperature Scale of 1990 (ITS-90) as the interpolating instrument for temperatures between 13.8033 K and 1234.93 K. This SRM concerns the calibration properties of a ...

42. The Role of High-purity Noble Metals in Precision Thermometry
Published: 11/1/2001
Authors: Dean C Ripple, Gregory F Strouse, Weston Leo Tew
Abstract: A variety of alternate calibration schemes which approximate the ITS-90 are possible when using high-purity noble metals. The high purity of the sensor materials allows the use of correlations that exist between the measured properties at fixed point ...

43. Investigation of the Non-Uniqueness of the ITS-90 in the Range 660 C to 962 C
Published: 6/1/2001
Authors: G T. Furukawa, Gregory F Strouse
Abstract: Preliminary results are reported on the non-uniqueness of the ITS-90 using high temperature SPRTs (HTSPRTs) in the range 660 C to 962 C. To achieve temperature stability and uniformity of the test HTSPRTs, the method employs the thermal isolation ...

44. New NIST Mercury Triple-Point Cells
Published: 6/1/2001
Authors: Gregory F Strouse, J Lippiatt
Abstract: Six new Hg triple-point (TP) cells (234.3156 K) were manufactured in the NIST PRT Laboratory for use in the realization of the International Temperature Scale of 1990 (ITS90). The fixed-point cells consisted of both glass and stainless steel designs ...

45. Small Fixed-Point Cells for Use in Dry Well Block Calibrators
Published: 6/1/2001
Author: Gregory F Strouse
Abstract: As part of a research project for the Combined Calibration Group (CCG) of the U.S. Armed Forces, three rugged fixed-point cells were developed for use in dry well block calibrators (DWBCs). The small fixed-point cells of the water triple point (0.01 ...

46. Standard Reference Material 1745: Indium Freezing-Point Standard and Standard Reference Material 2232: Indium DSC Melting-Point Standard
Series: Special Publication (NIST SP)
Report Number: 260-132
Published: 6/1/2001
Author: Gregory F Strouse
Abstract: The freezing point of indium (156.5985 degrees C) is a defining fixed point of the International Temperature Scale of 1990 (ITS-90). Realization of this freezing point is performed using a fixed-point cell containing high-purity (greater than or equa ...

47. The NIST Industrial Thermometer Calibration Laboratory
Published: 6/1/2001
Authors: C D Vaughn, Gregory F Strouse
Abstract: The NIST Industrial Thermometer Calibration (ITC) Laboratory provides calibrations of industrial thermometers over the range from 196 C to 550 C. The different types of thermometers include liquid-in-glass (LiG), thermistors, thermocouples (<300 ...

48. The Kelvin and Temperature Measurements
Series: Journal of Research (NIST JRES)
Published: 1/1/2001
Authors: Billy Wilson Mangum, G T. Furukawa, Kenneth Gruber Kreider, Christopher W Meyer, Dean C Ripple, Gregory F Strouse, Weston Leo Tew, Robert D. Saunders, Bettye C Johnson, Howard W Yoon, Michael R Moldover, Charles E Gibson
Abstract: 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 descr ...

49. NIST Realization of the Gallium Triple Point
Published: 11/1/1999
Author: Gregory F Strouse
Abstract: The gallium trip point (302.9166 K) instead of the gallium melting point (302.9146 K) is used at NIST in the realization of the International Temperature Scale of 1990 (ITS-90). Four different sources of gallium with purities of at least 99.999 995% ...

50. Thermal Characteristics of the NIST Fixed-Point Cells, Furnaces, and Maintenance Baths Over the Temperature Range From 83.8058 K to 1234.93 K
Published: 11/1/1999
Authors: Gregory F Strouse, G T. Furukawa
Abstract: The optimal realization of an International Temperature Scale of 1990 (ITS-90) defining fixed-point temperature, for accurate calibration of the (high-temperature) standard platinum resistance thermometer [(HT) SPRT], critically depends on the therma ...

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  • SP 250-XX: Calibration Services
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  • SP 400-XX: Semiconductor Measurement Technology
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