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透光率仪测量原理Softing Messen&Testen LTW-1
阅读：916 发布时间：2021-3-4Softing Messen & Testen GmbH测量原理LTW-1 empfohlenes Messgerat 激光焊接测量仪
测量原理
LED发出的光通过直径为1.5 mm的点形光圈到达待检样品。在样品的另一侧，透射光被内径<1.2 mm的不锈钢管的开口捕捉。
管中的光纤以约60°的立体角接收光，并将其引导至光电二极管。光电二极管电流与透射光量成正比。
这种测量方法特别适用于含有玻璃纤维成分的材料。
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