无接触式高温物体红外测量双色热图像成像方法研究及软件实现

The Non-contact Imaging Method Study and Software Realization of the Infrared-double-color-image of the Object with High Temperature

用双色滤波光学成像系统可获取同一物体两种不同波长(λ1,λ2)的量子辐射强度的灰度成像,若波长1λ和λ2选择恰当,可利用普朗克的灰体辐射通量密度公式求出物体的不含平均黑度ελ(0<ελ<1)的辐射通量密度比R(T);利用R(T)可高精度地计算出高温物体温度,并能根据光谱给出物体细致的具有真实感的高温图像。文中最后给出了该系统处理高温物体实验的结果图。使用该方法研制出的非接触式热图像分析仪已商品化。

This article introduces the two-color optics system which can obtain the grey scale images of an object with dissimilar wave length quanta radiant intensity, and the two-color method that utilizes the formula concerning black-body radiation flux density put forward by Planck can work out the radiation flux density ratio R （T） between λ1 and λ2 without average black degree ελ （0 〈 ελ 〈 1 ）with appropriate selection of λ1 and λ2. In this way the temperature distribution of a high temperature object can be accurately calculated, the infrared image can be obtained and the realistic temperature-color image of the object whole particularity can be described based on the optic spectrum. An experimental result is rendered based on the method at last. And Non-contactthermograph using this method has already become merchandise in the year of 2003.