https://doi.org/10.1351/goldbook.T06336
A technique in which an optical characteristic of a substance (and/or its reaction product(s)) is measured as a function of temperature whilst the substance is subjected to a controlled temperature @P04869@. Measurements of total light, light of specific @W06659@(s), @R05240@ and @L03641@ lead to thermophotometry, thermospectrometry, thermorefractometry and @T06325@, respectively; observation under the microscope leads to thermomicroscopy.