THERMOMETRIC COMPOSITION Russian patent published in 2010 - IPC C01B25/45 G01K11/12 

FIELD: measurement equipment.

SUBSTANCE: invention relates to methods for temperature measurement and relates to thermal indicators. Substance of invention consists in the fact that NH₄CoPO₄ (94-61%) and Na_0,7Ni_0,7Cr_1,3(MoO₄)₃ (6-39%) are mixed and homogenised while triturated for 40 minutes. Thermometric composition has 17 colour transitions in temperature range of 160-995°C. Colour transitions are contrast, adhesion of thermometric composition to surface of steel St 3 - strong. Invention may be used to measure temperature on rotary parts, current-conducting parts of large electric machines in process of reconstruction and further operation, to determine temperatures of rotary parts in turbogenerators and synchronous compensators, to measure temperature fields in boilers, pipes and electric lines of thermal power plants, to detect sections with highest gradient of temperature.

EFFECT: higher accuracy of measurement.

1 cl, 3 ex