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首页> 外文期刊>Sensing and imaging >Multi-Channel Eddy Current Detector Based on Virtual Instrument Technology and Self-Balancing Technology
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Multi-Channel Eddy Current Detector Based on Virtual Instrument Technology and Self-Balancing Technology

机译：基于虚拟仪器技术和自平衡技术的多通道涡流检测器

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摘要

In order to reduce the complexity of software and hardware design in multi-channeleddy current testing, a multi-channel real-time eddy current testing system based onlock-in amplifier technology and self- balancing technology is designed. The systemuses graphical programming language platform (LabVIEW), Myrio1900 dataacquisition control card and lock-in amplifier as key components. The lock-in amplifieradopts the lock-in technology to detect the amplitude and phase of the weakeddy current signal. The Myrio1900 card outputs multiple analog switch controlsignals and collects the amplitude component of the weak eddy current signal. TheLabVIEW platform uses self-balancing technology to eliminate the imbalance ofthe bridge itself. The detection system realizes the real-time and reliable display ofthe amplitude and XY components of the 6-channel eddy current signal. Experimentalresults show that the designed system has a detection width of 56.00 mm atone time, and can detect artificial grooves with a covering layer of 2.90 mm. Theartificial grooves have a width of 1.00 mm, a depth of 1.00 mm and a length of50.00 mm. The system design process described in the article can be used as a referencefor equipment developers and can also be used for educational purposes.
机译：为了降低多通道中软件和硬件设计的复杂性涡流测试，一种基于的多通道实时涡流测试系统设计了锁定放大器技术和自平衡技术。系统使用图形编程语言平台（LabVIEW），Myrio1900数据采集控制卡和锁定放大器作为关键组件。锁定放大器采用锁定技术来检测弱势的幅度和相位涡流信号。 Myrio1900卡输出多个模拟开关控制信号并收集弱涡流信号的幅度分量。这LabVIEW平台使用自平衡技术来消除不平衡的不平衡桥本身。检测系统实现实时和可靠的显示6通道涡流信号的幅度和XY组件。实验结果表明，设计的系统的检测宽度为56.00 mm一次，并且可以检测覆盖层的人为凹槽，覆盖层为2.90mm。这人造槽的宽度为1.00毫米，深度为1.00毫米和长度50.00毫米。本文中描述的系统设计过程可用作参考对于设备开发人员而且也可用于教育目的。

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