基于同面電容成像的航天隔熱復(fù)合材料粘接缺陷檢測方法
發(fā)布時(shí)間:2018-11-19 12:03
【摘要】:為了實(shí)現(xiàn)對(duì)航天隔熱復(fù)合材料粘接缺陷的可視化檢測,在分析同面電容成像(CPCI)系統(tǒng)模型及圖像重建原理的基礎(chǔ)上,提出了一種基于Kalman濾波的CPCI算法,并通過對(duì)估計(jì)電容值和測量電容值依賴程度的不斷調(diào)整來實(shí)現(xiàn)最優(yōu)估計(jì)。構(gòu)建了仿真實(shí)驗(yàn),驗(yàn)證了采用基于Kalman濾波的CPCI算法在缺陷檢測中的可行性和有效性。與采用常規(guī)CPCI算法的檢測實(shí)驗(yàn)結(jié)果進(jìn)行了對(duì)比,結(jié)果表明,所提圖像重建算法獲得的粘接缺陷圖像精度具有較大的提升。
[Abstract]:In order to detect the adhesion defects of spaceflight insulating composites visually, a CPCI algorithm based on Kalman filter is proposed based on the analysis of the model of coplanar capacitive imaging (CPCI) system and the principle of image reconstruction. The optimal estimation is realized by adjusting the dependence of the estimated capacitance value and the measured capacitance value. The simulation results show that the CPCI algorithm based on Kalman filter is feasible and effective in defect detection. The experimental results are compared with those of the conventional CPCI algorithm. The results show that the proposed image reconstruction algorithm can improve the precision of the adhesive defect image.
【作者單位】: 燕山大學(xué)電氣工程學(xué)院;燕山大學(xué)國防科學(xué)技術(shù)學(xué)院;
【基金】:國家自然科學(xué)基金項(xiàng)目(61573302) 河北省自然科學(xué)基金項(xiàng)目(E2017203240)
【分類號(hào)】:TP391.41;V250.2
本文編號(hào):2342248
[Abstract]:In order to detect the adhesion defects of spaceflight insulating composites visually, a CPCI algorithm based on Kalman filter is proposed based on the analysis of the model of coplanar capacitive imaging (CPCI) system and the principle of image reconstruction. The optimal estimation is realized by adjusting the dependence of the estimated capacitance value and the measured capacitance value. The simulation results show that the CPCI algorithm based on Kalman filter is feasible and effective in defect detection. The experimental results are compared with those of the conventional CPCI algorithm. The results show that the proposed image reconstruction algorithm can improve the precision of the adhesive defect image.
【作者單位】: 燕山大學(xué)電氣工程學(xué)院;燕山大學(xué)國防科學(xué)技術(shù)學(xué)院;
【基金】:國家自然科學(xué)基金項(xiàng)目(61573302) 河北省自然科學(xué)基金項(xiàng)目(E2017203240)
【分類號(hào)】:TP391.41;V250.2
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1 金鈺;同面電極電容在復(fù)合材料結(jié)構(gòu)粘接缺陷檢測中的應(yīng)用研究[D];燕山大學(xué);2016年
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,本文編號(hào):2342248
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