Ionic liquid temperature sensor
OwnerBanqiu Wu, John D. Holbrey +2inventors
InventorsBanqiu Wu, John D. Holbrey, Ramana G. Reddy, Robin D. Rogers
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Abstract
A temperature sensor having a capillary tube or stem, sealed at both ends, with a thin bore defined therein is applied to the measurement of temperatures having a range of about −100° to +400° Centigrade. A bulb comprising a liquid reservoir, is provided at one end of the capillary tube, in liquid communication with the bore, and is generally filled with an ionic thermometric liquid. In the operation of the temperature sensor, temperature is measured by the height of the liquid in the bore.
Claims31
A temperature sensor using a liquid, the sensor comprising:
- a thermometer, having an elongated vessel and a reservoir for liquid;
- the thermometer further comprising a bore, within the elongated vessel, the bore being in liquid communication with the reservoir;
- at least one graduation, associated with the elongated vessel;
- wherein the liquid is a thermometric ionic liquid which rises or falls, within the bore, depending on the temperature ambient to the thermometer.
A temperature sensor using a liquid, the sensor comprising:
- a thermometer, having an elongated vessel and a reservoir for liquid;
- the thermometer further comprising a bore, within the elongated vessel, the bore being in liquid communication with the reservoir;
- a plurality of graduations associated with the elongated vessel, said graduations expressing a range of temperatures equivalent to about −100° to about +400° Centigrade;
- wherein the liquid is a thermometric ionic liquid, which rises or falls within the bore depending on the temperature ambient to the thermometer and including a contrast medium such that the level of the liquid in the bore can be more easily seen;
- and
- wherein the thermometer measures temperatures in a range of about −100° to about +400° Centigrade.
A temperature sensor comprising a holder containing 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide.
A temperature sensor comprising a holder containing 1-ethyl-3-methylimidazolium tetrafluoroborate.
Dependencies are inferred from the claim text.