Array-type emissivity reference object

Abstract

The present invention relates to an array-type emissivity reference object. The array-type emissivity reference object comprises a cuboid metal substrate, rectangular grooves, rectangular wings and asymmetric line. The upper surface of the cuboid metal substrate is provided with a series of rectangular grooves and rectangular wings, and the surface of the cuboid metal substrate is provided with the symmetric line. The array-type emissivity reference object can be taken as a reference object to provide a wide emissivity interval in the infrared temperature measurement technology and provide continuous selectable surface units, the selectable surface units have a continuous and stable emissivity in a working temperature interval, and the symmetrical structure can make a temperature field tobe more stable; and moreover, the array-type emissivity reference object can be taken as an emissivity reference sample after calibration, is small and simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of infrared temperature measurement, in particular to an array emissivity reference object. Background technique [0002] Infrared temperature measurement technology has been widely used in civil and industrial fields. To measure the temperature of an object with an infrared temperature measuring device, it is necessary to know the surface emissivity of the object to be measured. However, it is difficult to determine the surface emissivity of an object, because the surface emissivity depends not only on the type of object material, but also on factors such as the surface condition of the object. In the process of temperature measurement, in order to first determine the surface emissivity, a common auxiliary method is to use an object with known emissivity as a reference. However, currently used reference objects such as black tape have different specifications, cannot be reused, have a short lifespan, and ...

AI Technical Summary

Problems solved by technology

However, the reference materials currently used, such as black tape, have different specifications, cannot be reused, have a short lifespan, and are easily damaged after heating. As emissivity reference materials, their emissivity is unstable.

[0003] At this stage, there are not many reference objects with known emissivity for array emissivity reference objects. The current technology has three shortcomings. One is that the temperature measurement range is not wide enough; the other is that within the working temperature range, the emissivity of the reference object is a fixed value. or area value, which cannot be adjusted continuously; third, most reference objects are asymmetric structures, and their own temperature field is unstable, which affects the accuracy of emissivity measurement

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