Three-CCD temperature field measuring apparatus and method

Abstract

The invention relates to a three-CCD temperature field measuring device, comprising an optical lens, a beam splitting prism group, three CCD area array sensors and a data acquisition and analysis unit; wherein the optical lens is used for optically imaging and focusing radiations of objects to be measured on an incident plane of the beam splitting prism group; the beam splitting prism group equally divides the projected radiations into three waveband radiations in distinct directions, and the three waveband radiations exit from three exit planes respectively; the three CCD area array sensors are arranged at the three exit planes of the beam splitting prism group respectively, thus imaging the three exit radiations that pass through light filters of different spectrum transmittance distribution and obtaining three spectrum-irrelative CCD images; and the data acquisition analysis unit acquires the data of the three CCD images and utilizes a multispectral temperature measurement method for the temperature field calculation. The invention also relates to a corresponding temperature field measurement method. The inventive technical proposal can achieve the temperature field measurement and can be widely applied; in addition, the technical proposal is simple and feasible, and easy for popularization and application in the field of industrial production, such as high-temperature detection, etc.

Description

technical field [0001] The invention relates to optical temperature measurement technology, in particular to a temperature field measurement device and method based on spectral fusion of three CCD (Charge Coupled Device, Charge Coupled Device) area array sensors. Background technique [0002] In the field of high temperature detection in petrochemical, metallurgy, steel, cement, glass and other industrial production industries, radiation temperature measuring instruments have huge market demand and broad application space. For example, the temperature measurement and control inside the high-temperature furnace in the metallurgical industry plays an important role in the production process. In these typical application fields, the traditional thermocouple contact temperature measurement method is gradually being used by the non-contact optical measurement method with lower price, stable performance and low consumption due to measurement limitations and high cost of material c...

AI Technical Summary

Problems solved by technology

When this method is applied, although the required wavelength can be selected more flexibly, it needs to meet the condition that the temperature field of the object remains stable during the time period of the alternate measurement of the two monochromatic filters. For the measurement of the transient temperature field, this Requirements are often difficult to meet, resulting in application limitations

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