| 摘要 |
Electro-optically inspecting a longitudinally moving rod of material ( 12 ). Guiding rod ( 12 ) along its longitudinal axis by rod guiding unit ( 14 ), along optical path ( 20 ) within transparent passageway ( 22 ). Optical path ( 20 ) and transparent passageway ( 22 ) coaxially extend along longitudinal axis of rod ( 12 ) and pass through an electro-optical transmission module ( 24 ). Focused beam ( 28 ) from illumination unit ( 26 ) is transmitted through first side ( 30 ) of transparent passageway ( 22 ) and incident upon rod ( 12 ) within transparent passageway ( 22 ). Illuminating volumetric segment ( 34 ) of rod ( 12 ) by incident beam ( 32 ), such that incident beam ( 32 ) is affected by and transmitted through volumetric segment ( 34 ) and transmitted through second side ( 36 ) of transparent passageway ( 22 ), for forming rod material transmitted beam ( 38 ). Detecting transmitted beam ( 38 ) by detection unit ( 40 ), for forming rod material volumetric segment transmitted beam useable for determining internal properties and characteristics of rod of material ( 12 ).
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