Evaluation of SRD1000 Superconductive Reference Devices |
| |
| Authors: | Stephan Schöttl Richard Rusby Henri Godfrin Matthias Meschke Valérie Goudon Sebastien Triqueneaux Andrea Peruzzi Martin J. de Groot Reyer Jochemsen Wim Bosch Yves Hermier Laurent Pitre Céline Rives Bernd Fellmuth Jost Engert |
| |
| Affiliation: | (1) National Physical Laboratory, Teddington, TW11 0LW, UK;(2) CNRS-CRTBT, 38042 Grenoble Cedex 9, France;(3) Advanced Technology Department, Air Liquide, 38360 Sassenage, France;(4) Van Swinden Laboratorium, NMi, 2600 AR Delft, The Netherlands;(5) Kamerlingh Onnes Laboratorium, Leiden Univ., 2300 RA Leiden, Netherlands;(6) HDL Hightech Development Leiden, 2318 MP Leiden, The Netherlands;(7) BNM-INM CNAM, 75141 Paris Cedex 03, France;(8) Physikalisch-Technische Bundesanstalt, 10587 Berlin, Germany |
| |
| Abstract: | No Heading Recently, a superconductive reference device, SRD1000, with ten reference materials has been developed to enable simplified in situ calibration of interpolating thermometers. We report on the evaluation of SRD1000 prototypes at various laboratories. The devices were built and tested by HDL and KOL, calibrated at NMi-VSL and then distributed to other partners where they were re-calibrated against the local realisations of the PLTS-2000 or laboratory scales. As a result, we obtained data on the superconductive transition temperatures, widths and shapes for four different devices. Reproducibility, sharpness of the transitions, supercooling and sensitivity to magnetic fields are evaluated. This leads to estimates of the uncertainty in determination of the transition midpoint and temperature.PACS numbers: 07.20.Dt, 07.20.Mc, 74.62.–c, 74.70.Ad |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
