The use of bushings with triple point of water cells: towards breaking the 50 µK barrier

The use of bushings with triple point of water cells: towards breaking the 50 µK barrier
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使用带有水三相点池的套管：突破 50 µK 屏障

DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
R. Dematteis
R. Dematteis
中科院分区：
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文献类型：
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作者：
P. Steur;R. Dematteis

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在INRIM的Euromet.T-K7比较框架内的测量期间，在温度计直径为12 mm至13.6 mm的水三点池中观察到了50 µK或更高数量级的不稳定性。在长达一年多的跟踪测量过程中，对这些异常进行了调查，并尝试和验证了解决方案。已经尝试使用石英衬套，导致不同尺寸的水三点电池之间的一致性比迄今为止达到的更接近。此外，还给出了不使用衬套时对实现的三相点温度的影响。
Instabilities of the order of 50 µK or higher have been observed in water triple point cells with a thermometer well of 12 mm to 13.6 mm diameter during measurements at the INRiM in the framework of the Euromet.T-K7 comparison. In the course of many follow-up measurements, extending over more than one year, these anomalies have been investigated and a solution has been tried and verified. The use of quartz bushings has been tried, leading to a much closer agreement between water triple point cells of different dimensions than was hitherto achieved. Furthermore, the effect on the realized triple point temperature is shown, when no bushing is used.