MULTI-TEMPERATURE IRREVERSIBLE THERMAL INDICATOR WITH THERMAL INDICATOR SCALE AND ADDITIONAL LARGE TEMPERATURE-SENSITIVE ELEMENT Russian patent published in 2025 - IPC G01K11/18 G01K11/16 G01K11/06 G09F3/02 

FIELD: measuring.

SUBSTANCE: invention relates to the field of thermal indicator devices, which are multi-temperature irreversible thermal indicators with a thermal indicator scale, which includes small heat-sensitive elements, and an additional large heat-sensitive element. Irreversible thermal indicator includes a base on which thermosensitive elements (TE) are located, made with possibility of irreversible change of appearance when corresponding threshold temperatures are reached, among which at least two small thermosensitive elements (STE₁ and STE₂) can be distinguished, having different response temperatures; at least one large thermosensitive element (LTE). Area of the LTE is at least twice as large as the area of both the STE₁ and the STE₂.

EFFECT: invention provides higher safety of operation of equipment equipped with thermal indicators according to the invention, due to provision of simplicity of interpretation of results of thermal indicator control, without loss of its information value.

18 cl, 9 dwg