High-precision non-contact temperature measurement device

    公开(公告)号:US11885690B2

    公开(公告)日:2024-01-30

    申请号:US17124523

    申请日:2020-12-17

    CPC classification number: G01J5/068 G01J5/80 G01J2005/0077

    Abstract: A high-precision non-contact temperature measurement device includes: a thermal insulation box made of a thermal insulation material and having therein a receiving space; a dynamic constant-temperature feedback control module for controlling temperature of the receiving space; and a non-temperature-sensing thermal imager disposed in the receiving space. The device achieves system thermal insulation within a non-contact temperature measurement gauge, maintains the overall closed system dynamically at constant temperature, compensates for effects of internal chip self-heating effect and visual field background temperature variation, and finally calculates average temperature of surfaces of a target precisely with an imaging, non-contact temperature measurement gauge and a temperature calibration algorithm widely used in thermal-imaging non-contact temperature measurement.

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