Flexible Electromagnetic Probe Arrays

柔性电磁探头阵列

• 批准号: 8760531
• 负责人: Yehuda Krampfner
• 金额: $ 5万
• 依托单位: Failure Analysis Associates Palo Alto Headquarters
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1988-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8760531&HistoricalAwards=false
• 关键词: Flexible; Electromagnetic; Probe; Arrays

The flexible eddy-current probe array concept, which was developed by Failure Analysis Associates, allows coverage of the test area without scanning, by placing an array of probes, fabricated on a thin flexible substrate, against the test surface and electronically multiplexing through the array elements in a selected sequence. The goal of this project is to advance the flexible eddy-current array concept to a position of practical utilization. The application of holographic inversion of the data obtained from stacked, staggered arrays will be explored in order to improve the resolution. A closer packing of the elements is obtained by a matrix electrical interconnection scheme. This involves a matrix inversion operation to extract the individual element response from the mixed signal of the entire array. The algorithms developed in the course of this project will be incorporated into software that will run on a PC- based eddy-current instrument.

柔性涡流探头阵列概念是由失效分析协会开发的，通过在薄的柔性衬底上放置一组探头阵列，针对测试表面，并按照选定的顺序通过阵列元件进行电子多路复用，可以在不扫描的情况下覆盖测试区域。本课题的目标是将柔性涡流阵列的概念推进到实际应用的位置。为了提高分辨率，将探索堆叠、交错阵列获得的数据的全息反演应用。通过矩阵电互连方案可以使元件更紧密地排列在一起。这涉及到从整个数组的混合信号中提取单个元素响应的矩阵反转操作。在这个项目的过程中开发的算法将被纳入软件，将运行在一个基于个人电脑的涡流仪器。