| 摘要: |
| 以无损判定西瓜成熟度和内部品质为目的，制作了单摆式打击装置，测定了西瓜果实的打击音波曲线。利用FFT法分析打击音波的功率谱密度；对打击音波特性值和感官评价值及基础特性之间的相关性进行了分析。 |
| 关键词: 西瓜，成熟度，品质鉴别，音波特性 |
| DOI： |
| 分类号:S651 |
| 基金项目: |
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| On the Characteristics of Sound Wave Forms of Watermelons |
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He Dongjian Li Zengwu Wang Hougqun,He Dongjian Li Zengwu Wang Hougqun,He Dongjian Li Zengwu Wang Hougqun
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| Abstract: |
| With the purpose to judge watermelon maturity and internal quality without damaging them,a simple pendulum hitting device was developed to determine the feature curves of sound wave forms of watermelons.The FFT method was used to analyse the power spectral density of sound wave forms of watermelons.Also the correlation relations among the characteristic values of the sound wave forms,sensory judgement values and some values of physical properties were analysed. |
| Key words: watermelon,maturity, quality discernment, sound wave characteristics |
