ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

雞蛋敲擊響應(yīng)的奇異性特征與蛋殼裂紋多層檢測(cè)
CSTR:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號(hào):

基金項(xiàng)目:


Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    通過(guò)微型話筒和聲卡采集敲擊雞蛋后的脈沖時(shí)域信號(hào),，利用信號(hào)的小波變換模極大值建立了反映信號(hào)奇異性強(qiáng)度和頻帶位置的奇異性指標(biāo)。分析表明，裂紋蛋的奇異性指標(biāo)主要位于低頻帶,、指標(biāo)值較大,；好殼蛋的奇異性指標(biāo)分布相對(duì)分散,、指標(biāo)值較小,，二者有明顯的區(qū)別,?；谄娈愔笜?biāo)的多層分布特征和奇異性強(qiáng)度,，定義一個(gè)以加權(quán)平均值為奇異指標(biāo)的標(biāo)準(zhǔn)值，提出了蛋殼裂紋的多層檢測(cè)方法,。通過(guò)實(shí)際檢驗(yàn)檢測(cè)精度達(dá)

    Abstract:

    96%,。 A singularity indicator of time-domain pulse response signal, related with the singular intensity and frequency band, was presented by using wavelet transform modulus maxima, in which the response signal has been detected by a mini-microphone and sound adapter when egg-shell was excited with a mechanical impact. The analysis showed that the most singularity indicators of the cracked eggs only located in the low-frequency bands with big indicator values, meanwhile those of the intact eggs were found in the more frequency bands with small indicator values. A standard value, as singular indicator was defined with weighted average value, and a multi-level scheme for egg-shell crack detection has been proposed. Test results with 96% recognition ratio showed the efficiency of the proposed multi-level detection method.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

王巧華,鄧小炎,文友先.雞蛋敲擊響應(yīng)的奇異性特征與蛋殼裂紋多層檢測(cè)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(12):127-131.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(12):127-131.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期:
文章二維碼