| 摘要 |
Accordingly, the present invention provides a thermometer comprising a capillary tube having a bore extending along the length of the tube, a bulb disposed at an end of the tube and in fluid communication with the said bore, and a thermometric liquid provided in the bulb, the said thermometric liquid being an aqueous solution of one or more electrolytes, said thermometric liquid having a surface tension greater than that of water and being substantially free of dissolved gases, at least the inner surface of the bore of the capillary tubing being a low surface energy material, the surface energy of the said low surface energy material being lower than the surface tension of the thermometric liquid by a factor which is at least two.
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