Microwave measurements for gas thermometry up to the copper point
XiaoJuan Feng, Keith A. Gillis, Michael R. Moldover, James B. Mehl
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.
, Gillis, K.
, Moldover, M.
and Mehl, J.
Microwave measurements for gas thermometry up to the copper point, Metrologia, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=913447
(Accessed August 10, 2022)