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基于聲學(xué)特性的禽蛋裂紋實時在線檢測系統(tǒng)
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“十一五”國家科技支撐計劃資助項目（2006BAD11A12）


On-line Detection of Cracked Shell Eggs Based on Acoustic Resonance Analysis
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    摘要:

    設(shè)計了一套基于數(shù)字信號處理器DSP(TMS320F2812)的禽蛋裂紋在線檢測系統(tǒng),，系統(tǒng)以禽蛋聲學(xué)特性為基礎(chǔ),，通過采集并分析敲擊禽蛋產(chǎn)生的響應(yīng)信號，可實現(xiàn)禽蛋裂紋的在線,、實時檢測,。根據(jù)大量完好和裂紋禽蛋敲擊響應(yīng)信號特征的差異,，提取了5個特征參數(shù),，建立相應(yīng)判別模型,，快速檢測裂紋禽蛋,。系統(tǒng)對75個完好和95個裂紋雞蛋進(jìn)行了在線檢測試驗,，判對率分別為92.0%和90.5%，檢測速率為5個/s,，滿足在線檢測的要求,。

    Abstract:

    An on-line system based on acoustic resonance combined digital signal processing (DSP) system was developed for eggshell crack detection. It was achieved by analysis of measured frequency response of eggshell excited with a light mechanical force. Based on previous experiments, differences between the signals of intact eggs and cracked eggs were analyzed. Five excitation resonant frequency characteristics of eggs were used as input vectors of identification model to discriminate intact and crack eggs. The identification results were transmitted to host computer. The system was employed for on-line detection of cracked eggs, identification rates of intact eggs and cracked eggs were 92.0% and 90.5%, respectively. This system can detect 5 eggs within one second. It completely meets the need of on-line detection. 

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孫力,蔡健榮,林顥,趙杰文,方根根.基于聲學(xué)特性的禽蛋裂紋實時在線檢測系統(tǒng)[J].農(nóng)業(yè)機(jī)械學(xué)報,2011,42(5):183-186. Sun Li, Cai Jianrong, Lin Hao, Zhao Jiewen,Fang Gengen. On-line Detection of Cracked Shell Eggs Based on Acoustic Resonance Analysis[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(5):183-186.

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