蘋果彈性模數衰退模式之研究
Other Title
A Study on the Modulus of Elasticity Decaying Model for Apples
Journal
中華農業研究
Journal Volume
42
Journal Issue
3
Pages
327-335
Date Issued
1993-09-10
Date
1993-09-10
Author(s)
黃禮棟
陳必超
Li-Duhng Huarng
pictiaw Chen
Abstract
本試驗利用諧振頻率、質量及密度等參數計算出蘋果之彈性模數，並將紅蘋果(Red Delicious Apple)儲藏於溫度維持20℃，相對濕度維持90%之控制環境室中，以每三天測量聲波反應並利用FFT分析以求得諧振頻率後再予轉換成彈性模數之方式研究彈性模數隨時間變化之模式。Resonant frequencies as well as mass, density and Poisson's ratio have been used as parameters to obtain the modulus of elasticity of Red Delicious Apples in this study. The apples were immediately stored in a controlled atmosphere room with temperature maintained at 20℃and relative humidity at 90% right afetr being picked from trees.
Subjects
蘋果
諧振頻率
彈性模數
頻譜
Apple
Resonant frequency
Modulus of elasticity
Frequency spectrum
Publisher
農業試驗所
Type
journal article
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