这样，安装在红外光焦点运动轨迹上的热释电敏感元件被红外光焦点不断扫描而产生自主采样的热释电信号。

So, the pyroelectric sensor that is located on the moving track of the infrared focus is scanned by the infrared focus signal continuously and generates the autonomous sampling pyroelectric signal.

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所以辐射敏感元件对波长为10um左右的红外辐射必须敏感。

So right wavelength radiation sensitive components for 10um about to be sensitive to infrared radiation.

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