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您當(dāng)前的位置:首頁   <   新聞中心   <   超聲波流量計在管道泄漏監(jiān)測系統(tǒng)中的應(yīng)用
超聲波流量計在管道泄漏監(jiān)測系統(tǒng)中的應(yīng)用

發(fā)布時間:2012-3-6 8:12:11

金湖捷特儀表今天和你談?wù)?a href="http://www.stepuptechacademy.com/">超聲波流量計在管道泄漏監(jiān)測系統(tǒng)中的應(yīng)用:鑒于本課題將首先應(yīng)用于微弱超聲信號的測量,而由于不同實驗可能采用的超聲發(fā)射頻率不同,所以定義表征超聲發(fā)射信號頻率全局變參量float Pre_Proc。又因發(fā)射信號頻率已知性,故而很容易經(jīng)過判斷頻率進(jìn)行壓縮?;煦缯褡?img border="0" alt="" src="/up_files/image/Article/2012/03/06/29812393.gif" />實現(xiàn)包括單個振子實現(xiàn)和時間尺度變換算法實現(xiàn)。 在信號預(yù)制過程是指信號進(jìn)入混沌振子陣列其頻率壓縮至1~10范圍過程。

  用四階龍格庫塔法求解,計算公式(h算法步長):

 

 

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時間尺度變換簡單,就是將龍格庫塔法積分步長始值1/ω即。軟們定義RungKutta(float Pace,float w)函數(shù)完成步長Pace、參考頻率wDuffing方程數(shù)值積分。信號頻率確定,信號相位值由鎖相確定,而幅值則根據(jù)混沌周期段最幅值應(yīng)矢量合成峰值減去該混沌振子參考信號幅值確定。混沌算法準(zhǔn)確地提壓力信號所包含壓波信息,定位精度1%以,滿足工程應(yīng)求。

  結(jié)合管道輸送的實際情況,針原油管道泄漏監(jiān)測技術(shù)及其運行監(jiān)測系統(tǒng)進(jìn)行深入研究,利超聲波流量計,依據(jù)流體流量超聲波流量計傳播速度關(guān)系,管道流量進(jìn)行實時連續(xù)監(jiān)測。充分發(fā)揮計算機(jī)網(wǎng)絡(luò)優(yōu)勢,建立管道泄漏監(jiān)測系統(tǒng),以達(dá)到及時發(fā)現(xiàn)泄漏,并準(zhǔn)確地確定其位置的目的。

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