Evaluation of internal log quality using X-ray and ultrasound

机译：使用X射线和超声评估内部测井质量

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Several technologies are developed to get knowledge of internal log quality before sawing. In this study X-ray and ultrasound technology are tested with 225 spruce logs from southern Germany. Both systems were capable of grading logs according to their Year ring width (threshold grading, at least 80% correct). Furthermore a prediction of strength of the sawn timber (DIN 4074) was possible with 60% correct and 20% over- and underestimations each. Advantages and limitations are shown.

机译：已开发了多种技术来在锯之前获得内部测井质量的知识。在这项研究中，X射线和超声技术已经用来自德国南部的225种云杉原木进行了测试。两种系统都能够根据年环宽度对原木进行分级（阈值分级，至少80％正确）。此外，通过60％的正确和20％的高估和低估，可以预测锯材的强度（DIN 4074）。显示了优点和限制。

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来源
《International Symposium on Nondestructive Testing of Wood; 20000913-20000915; Sopron; HU》|2000年|P.259-263|共5页
会议地点 Sopron(HU)
作者
Hauffe; Philipp; Mahler; Gerold;
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Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Postfach 708, D-79007 Freiburg;

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正文语种 eng
中图分类木材产品标准与检验;
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5. Nondestructive evaluation of fresh chestnut internal quality using x-ray computed tomography (CT). [D] . Donis-Gonzalez, Irwin R. 2013

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6. X-ray imaging methods for internal quality evaluation of agricultural produce [O] . Nachiket Kotwaliwale, Karan Singh, Abhimannyu Kalne, 2014

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7. Non-destructive evaluation of internal quality of radish tubers using specific gravity, X-ray analysis and near infrared spectroscopy [O] . Marcelis L.F.M., Burg W.J. van der, Frankhuizen R., 1995

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机译：用X射线摇摆曲线和双晶X射线形貌评价蓝宝石的质量。

Evaluation of internal log quality using X-ray and ultrasound

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