本文選題：掃描激勵　切入點：紅外熱波　出處：《南京航空航天大學》2016年碩士論文　論文類型：學位論文

【摘要】：可靠便捷的無損檢測技術對于設備運行的安全保障、降低維修成本、提前預防事故發(fā)生有至關重要的作用。紅外熱波檢測技術具有快速、直觀、非接觸、一次觀測面積大的優(yōu)點,在電力、航空航天、汽車、石化管道等領域被廣泛應用。隨著紅外熱波檢測技術的發(fā)展和應用,建立快捷、智能化的紅外熱波檢測系統(tǒng)具有重要意義。針對紅外熱波檢測現(xiàn)場、大面積檢測的需要,本課題從軟件、硬件兩方面進行設計,建立了掃描激勵紅外熱波檢測系統(tǒng)。將一般PC計算機替代成小型的嵌入式工控機,適應現(xiàn)場檢測要求。在.NET平臺下,使用Visual C++設計了搭載在檢測系統(tǒng)工控機上的用戶操作軟件。軟件界面友好,功能豐富,具備紅外圖像顯示、紅外視頻播放、視頻格式轉換、檢測參數(shù)記錄、激勵源觸發(fā)、紅外視頻和圖像拍攝等功能,還針對掃描式檢測的需要設計了自動觸發(fā)功能。優(yōu)化了系統(tǒng)控制方案,將攝像機控制和激勵源控制集成化,設計了電路轉接板和電池等模塊。本課題還設計了熱波檢測數(shù)據(jù)信息管理平臺,該平臺采用B/S模式和三層架構方式,使用ASP.NET技術,實現(xiàn)了用戶權限配置、檢測對象信息管理、檢測數(shù)據(jù)上傳和下載、檢測報告和維護報告錄入等功能。本課題分別對碳纖維增強復合材料的損傷缺陷、鋼箱梁U肋焊接處疲勞裂紋和鋼板復雜形狀裂紋進行了實際檢測實驗,驗證了掃描激勵紅外熱波檢測系統(tǒng)的實用性。本課題設計的掃描激勵紅外熱波檢測系統(tǒng)在快捷、智能化紅外熱波檢測系統(tǒng)的設計領域具有較好的參考價值和實際意義。
[Abstract]:Reliable and convenient nondestructive testing technology is very important to ensure the safety of equipment operation, reduce the maintenance cost and prevent accidents in advance. The infrared heat wave detection technology is fast, intuitive and non-contact. With the development and application of infrared thermal wave detection technology, it has been widely used in the fields of electric power, aerospace, automobile, petrochemical pipeline and so on. The intelligent infrared thermal wave detection system is of great significance. In order to meet the needs of the infrared thermal wave detection field and large area detection, this subject is designed from two aspects: software and hardware. A scanning excited infrared thermal wave detection system is established. The general PC computer is replaced by a small embedded industrial control computer to meet the requirements of field detection. Using Visual C, the user operation software is designed on the industrial control computer of the detection system. The software has friendly interface, rich function, infrared image display, infrared video playback, video format conversion, detection parameter record, excitation source trigger, etc. The functions of infrared video and image shooting are also designed to meet the needs of scanning detection. The system control scheme is optimized and the camera control and excitation source control are integrated. The module of circuit transfer board and battery is designed. The platform of thermal wave detection data information management is also designed. The platform adopts B / S mode and three-layer structure mode, and uses ASP.NET technology to realize user authority configuration and information management of detecting object. The testing data are uploaded and downloaded, the detection report and the maintenance report are inputted. In this paper, the damage and defect of carbon fiber reinforced composite material, fatigue crack of steel box girder U-rib welding and complex shape crack of steel plate are tested. The practicability of the scanning excited infrared thermal wave detection system is verified. The design of the scanning excited infrared thermal wave detection system has good reference value and practical significance in the field of fast and intelligent infrared thermal wave detection system.
【學位授予單位】：南京航空航天大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TH878

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