作　　者： ; ; ;

机构地区： 华南理工大学机械与汽车工程学院

出　　处： 《科学技术与工程》 2007年第13期3096-3100,共5页

摘　　要： 根据涡流、漏磁以及磁记忆检测的特点,基于巨磁阻元件开发了涡流/磁一体化阵列传感器,将电磁无损检测中动态、静态电磁场的测量统一起来,按照检测要求进行常规涡流、脉冲涡流、任意波激励涡流、漏磁以及磁记忆等检测方式。通过分组引线降低了传感器的布线难度,具有较高的扫描检测速度;利用串行通信将传感器中存储于Flash芯片内的各项参数传输到主机,进行各种补偿和设置,提高传感器的性能。该传感器具有应用范围宽、测量范围大、体积小、稳定性好以及空间分辨率高等特点。 An array eddy current/magnetic integrative sensor based on Giant Magneto Resistance parts was designed according to the character of eddy current testing, and the magnetic flux leak testing and magnetic memory testing contributes to unifying dynamitic and static electromagnetic field measurement for electromagnetic nondestructive testing. The sensor not only can operate in conventional eddy current testing, pulse eddy current testing, arbitrary waveform excitation eddy current testing, magnetic flux leak testing and magnetic memory testing modes according high spatial to testing condition, but also has the merit of broad linear measurement range, small volume and resolution. The arrangement of connecting sensors in high scanning testing speed. Via serial communication, all sensor groups decreases routing difficulty and achieves parameters stored in flash memory are transferred into main machine to complete compensations and settings, so as to improve sensor performance.

关 键 词： 巨磁阻 阵列传感器 涡流检测 漏磁检测 磁记忆检测

领　　域： [电气工程] [电气工程]