【作者】 乔铁柱； 许伟；

【Author】 Qiao Tiezhu Xu Wei (Institute of Measuring and Controlling Technology of TUT Taiyuan 030024 China)

【机构】 太原理工大学 测控技术研究所；

【摘要】 金属磁记忆(MMM)检测技术是一种新的无损检测手段,对金属构件的早期失效和寿命评估有重要意义。为了可靠灵敏地检测出钢绳芯胶带的早期损伤或隐患,研制了一种基于金属磁记忆检测方法的新型传感器。给出了传感器探头的设计、检测系统的设计及软件设计,探头由霍尔元件与聚磁器构成,采用被动式结构,检测系统选取专业浮点DSP芯片为微处理器。本新型传感器对钢绳芯胶带进行检测时具有灵敏度高、提离效应小、可靠性高等特点。更多还原

【Abstract】 Metal Magnetic Memory(MMM) is a new non-destructive testing(NDT) technique It is important on early diagnostics of fatigue damages and evaluatuion of life time In order to check the early injury problems and hidden troubles of the steel-cord belts reliably and sensitively a new type of sensor based on Metal Magnetic Memory technology is developed The designs of sensor probe detection system and software are given The probe is made with Hall element and poly demagnetizer passive structures The floating-point DSP chip is used as the microprocessor in the detection system The new sensor which is used for steel-cord belts testing has the characteristics of high sensitivity small lift-off effect and high reliability.更多还原