differential thermometer definition

  • adjective:
    • a thermometer generally with a U-shaped tube terminating in two air bulbs, and containing a colored fluid, employed for showing the essential difference between the temperatures that the 2 bulbs are revealed, by the change of position associated with coloured liquid, in result of different expansions associated with air into the light bulbs. A graduated scale is mounted on one leg regarding the tube.
    • a thermometer usually with a U-shaped pipe terminating in 2 air bulbs, and containing a colored liquid, useful for suggesting the essential difference between the temperatures that the two bulbs tend to be subjected, by the modification of position of the coloured liquid, in result of the various expansions for the environment inside light bulbs. A graduated scale is attached to one leg associated with the tube.
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