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木材非破壞檢測技術公式及單位之正確用法淺論

Simple Viewpoints on the Method of Timber Non-destructive Testing and the Correct Use of Formula and Unit

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摘要


非破壞或微破壞的技術被廣泛運用在檢測木質材料的密度、強度、音速及動彈性係數等,但由目前國內外所發表的文獻中,得知有許多研究者有誤用公式與單位的情況。因此,本文就縱振動、橫振動及扭曲振動的測試方法及計算公式作簡要介紹,並以實例來說明木材非破壞檢測計算公式及單位之正確使用。透過本文釐清與討論誤用與混淆的發生案例,使學界日後能正確使用相關的公式,也避免繼續誤用錯誤公式。

關鍵字

木材 非破壞檢測 公式 單位

並列摘要


Non-destructive or micro-destructive techniques are widely used to detect the density, strength, sound speed and dynamic elasticity of woody materials. In this paper, the methods and equations of measuring the longitudinal, transverse and torsional vibration modulus of wood are briefly illustrated. Many authors have misused formulas and units from the published literature survey. Therefore, the purpose of this paper is to illustrate the correct use of wood non-destructive testing formulas and units. By clarifying and discussing the cases of misuse and substitution here, the academic community can use the relevant formulas correctly in the future, and can also avoid continuing to misuse the wrong formulas.

並列關鍵字

Wood Non-destructive techniques Formula Unit

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