Temperature Characteristics of Platinum–Cobalt Resistance Thermometers Based on the ITS-90 Above 14 K

Nakano, Tohru; Takasu, Sachiko; Tamura, Osamu; Kobayashi, Takichi; Tanaka, Yoshitada

doi:10.1007/s10765-014-1640-2

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…The characteristics and stability of Pt-Co thermometers have been studied by the National Metrology Institute of Japan [16,34,35]. They showed the performance of Pt-Co thermometers is comparable to that of rhodium-iron (Rh-Fe) resistance thermometers.…”

Section: Pt-co Thermometermentioning

confidence: 99%

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

et al. 2021

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We used absolute primary acoustic gas thermometry (AGT) to calibrate a Pt–Co resistance thermometer on the thermodynamic temperature scale by measuring the speed of sound in helium at a temperature T* chosen to be near the temperature of the triple point of neon, T Ne. Prior to the present AGT, the Pt–Co thermometer was used with a neon triple-point cell as part of an interlaboratory comparison. Taken together, the results of the interlaboratory comparison and the present AGT redetermined the thermodynamic temperature T Ne = (24.555 15 ± 0.000 24) K. This new value of T Ne is consistent with other recent determinations obtained with various primary methods. After completing the AGT thermodynamic calibration, we used the Pt–Co thermometer to link T* to the temperature ratios measured by single-pressure refractive-index gas thermometry (SPRIGT) in a different laboratory. (Gao et al 2020 Metrologia 57 065006) Now, the T*-linked SPRIGT system can calibrate other thermometers on the thermodynamic temperature scale T in the range 5 K ⩽ T ⩽ T Ne without using the international temperature scale ITS-90. At most temperatures in this range, the uncertainties of the T*-linked SPRIGT system are smaller than those of the ITS-90 systems used by National Metrology Institutes to calibrate resistance thermometers.

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Section: Pt-co Thermometermentioning

confidence: 99%

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

et al. 2021

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Characteristics of Standard Capsule-Type PtCo Resistance Thermometers Between 0.65 K and 25 K

Shimazaki¹,

Nakano²,

Takasu³

2017

Int J Thermophys

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Okaji

2016

TEION KOGAKU

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Temperature Characteristics of Platinum–Cobalt Resistance Thermometers Based on the ITS-90 Above 14 K

Cited by 3 publications

References 8 publications

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

Characteristics of Standard Capsule-Type PtCo Resistance Thermometers Between 0.65 K and 25 K

My Research History

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Temperature Characteristics of Platinum–Cobalt Resistance Thermometers Based on the ITS-90 Above 14 K

Cited by 3 publications

References 8 publications

Acoustic measurement of the triple point of neon T Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

Acoustic measurement of the triple point of neon T Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

Characteristics of Standard Capsule-Type PtCo Resistance Thermometers Between 0.65 K and 25 K

My Research History

Contact Info

Product

Resources

About

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

Acoustic measurement of the triple point of neon T _Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry