Gas pressure thermometer, and apparatus for application in a gas pressure thermometer
AssigneeStiko B.V.
InventorsAlbertus van der Kolk, Johannes-Gerhardus Stiller
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Abstract
A thermometer comprising an indicator, recording or control section and a measuring section coupled therewith comprising a closed system comprising a gas container, a Bourdon tube and a capillary, said measuring portion comprising a gas under increased pressure, whereby the increased initial pressure has a value above which, upon isothermical pressure increase, the gas is subjected to a reduction in compressibility. The Bourdon tube is made of a hardened chromium-molybdenum alloyed steel.
Claims4
A gas pressure thermometer, comprising an indicator, recording or control section, and a measuring section coupled therewith and comprising a closed system containing a gas having an increased initial pressure, which measuring section comprises a container for gas, a Bourdon tube and a capillary which connects the gas container to the Bourdon tube, characterized in that increased initial pressure has a value above which, upon isothermal pressure increase, the gas undergoes a compressibility reduction.
Dependencies are inferred from the claim text.