SCALE FOR INTERNAL ENERGY OF THERMOMETRE WORKING MEDIUM Russian patent published in 2010 - IPC G01K1/04 

FIELD: physics.

SUBSTANCE: scale for internal energy of the working medium of a thermometre is designed based on the first law of thermodynamics Q=U+W by joining two scales of inversely proportional numerical values of internal energy U of the working medium of a thermometre into a single scale. Both scales take measurements from a common origin in opposite directions. The scale over the measurement origin of the thermometre measures numerical values U₃ for which internal energy U₃=n₃U₀ in the working medium of the thermometre and its heating H₃=n₃H₀ exceeds its content of U₀ and its heating H₀ at the triple point of water. The scale below the measurement origin of the thermometre measures numerical values n₄ for which internal energy U₄=U₀/n₄ in the working medium of the thermometre is lower than its content of U₀ at the triple point of water, and its cooling X₄=n₄X₀ for the same numerical values n₄ higher than its cooling X₀ at the triple point of water.

EFFECT: determination of values of internal energy of the working medium of a thermometre at different temperature values.

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