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NIST Authors in Bold
|Author(s):||XiaoJuan Feng; Keith A. Gillis; Michael R. Moldover; James B. Mehl;|
|Title:||Microwave measurements for gas thermometry up to the copper point|
|Published:||May 13, 2013|
|Abstract:||We measured 5 microwave resonance frequencies fN of an argon-filled cylindrical cavity at temperatures up to 1349 K. The repeatability of both the measured frequencies u(fN) and the scaled half-widths u(gN)/ fN was better than 10-6fN. The measurement techniques are compatible with highly accurate acoustic gas thermometry up to the copper point at 1358 K and might be adaptable to refractive index gas thermometry.|
|Pages:||pp. 219 - 226|
|Keywords:||acoustic thermometry, primary thermometry, temperature scale, high temperatures, coaxial cables, acoustic resonator, microwave cavity resonator, speed of sound|
|Research Areas:||Thermometry, Thermophysics, Materials Properties, SI (Thermodynamics Units)|
|PDF version:||Click here to retrieve PDF version of paper (2MB)|