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VIRTUAL BLACKBODY RADIATION SYSTEM AND RADIATION TEMPERATURE MEASURING SYSTEM
VIRTUAL BLACKBODY RADIATION SYSTEM AND RADIATION TEMPERATURE MEASURING SYSTEM
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机译:虚拟黑体辐射系统和辐射温度测量系统
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摘要
A virtual blackbody radiation system (10) includes a light-emitting unit (1) including an LED driven by a fixed current, a light-receiving unit (2) including a sapphire rod, and an optical unit (3) including lenses (31, 32) for converging light emitted by the light-emitting unit in a convergent light. A cylindrical member (41)included in the optical unit (3)can be moved along the optical axis by a servomotor (42) included in a focus adjusting unit (4) for positional adjustment. The focus of convergent light relative to the light-receiving unit (2) can be adjusted by moving the lens (32) disposed in the cylindrical member (41) along the optical axis relative to the light-receiving unit (2). The intensity of the convergent light on the light-receiving unit (2) can be adjusted to the intensity of predetermined blackbody radiation. Thus, the virtual blackbody radiation system (10) is able to obtain light of a desired intensity without changing the driving current for driving a light source; consequently, the life time of the light source can be extended and the stability of radiation can be improved.
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