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電阻層析成像模塊

　基于電導(dǎo)率層析成像的304不銹鋼熔覆層電導(dǎo)率檢測研究

　　Research on conductivity detection of 304 stainless steel cladding layer based on conductivity tomography

　　背景介紹

　　Background

　　本案例用于快速呈現(xiàn)激光熔覆層（以304不銹鋼為例）的電導(dǎo)率分布，從而分析其結(jié)構(gòu)變化。通過對(duì)比分析了在不同電極數(shù)量、激勵(lì)測量模式及溫度變化下的檢測情況，驗(yàn)證了這種檢測方法的可行性。測試結(jié)果表明，使用16電極及間隔激勵(lì)測量模式能得到穩(wěn)定的測量電壓數(shù)據(jù)，且超分辨率圖像重建算法能準(zhǔn)確識(shí)別不同形狀的熔覆層。同時(shí)，還發(fā)現(xiàn)，在加熱區(qū)域，304不銹鋼熔覆層的導(dǎo)電性與常溫區(qū)域有顯著差異，說明電子運(yùn)動(dòng)速度和電導(dǎo)率分布隨溫度變化明顯。

　　This case is used to quickly present the conductivity distribution of the laser cladding layer (taking 304 stainless steel as an example) to analyze its structural changes. The feasibility of this detection method was verified by comparative analysis of detection conditions under different electrode numbers, excitation measurement modes, and temperature changes. The test results show that using 16 electrodes and spaced excitation measurement mode can obtain stable measurement voltage data, and the super-resolution image reconstruction algorithm can accurately identify cladding layers of different shapes. At the same time, it was also found that the conductivity of the 304 stainless steel cladding layer in the heating area is significantly different from that in the normal temperature area, indicating that the electron movement speed and conductivity distribution change significantly with temperature.

　　關(guān)鍵技術(shù)1：激光熔覆實(shí)驗(yàn)平臺(tái)搭建

　　Laser cladding experimental platform construction

　　關(guān)鍵技術(shù)2：檢測系統(tǒng)實(shí)驗(yàn)平臺(tái)搭建

　　Detection system experimental platform construction

　　關(guān)鍵技術(shù)3：圖像重建求解研究

　　Detection system experimental platform construction