Quick search Find article
Quick search
Find article

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

P P M Steur and R Dematteis

Show affiliations


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.


PACS

07.20.Dt Thermometers

06.20.fb Standards and calibration

06.30.Bp Spatial dimensions (e.g., position, lengths, volume, angles, and displacements)

Subjects

Instrumentation and measurement

Dates

Issue 5 (October 2008)

Received 18 January 2008

Published 17 September 2008



Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. High-temperature bulk acoustic wave sensors

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.