Digital method of pulsed-high-field magnetoresistive measurements based on finite impulse response filters
Digital method of pulsed-high-field magnetoresistive measurements based on finite impulse response filters
复制标题
基于有限脉冲响应滤波器的脉冲高场磁阻测量数字方法
DOI：
10.1016/j.jmmm.2003.12.544
复制
发表时间：
2004
影响因子：
2.7
通讯作者：
L. Schultz
中科院分区：
文献类型：
--
作者：
N. Kozlova;M. Kozlov;D. Eckert;K. Müller;L. Schultz
研究了一种适用于60T脉冲场装置的磁阻技术。介绍了用四探针交流测量技术获得可靠信噪比结果的数字方法。将基于有限脉冲响应滤波器的算法应用于磁阻数据的处理。该滤波器是围绕零相位延迟帕克斯-麦克莱伦滤波器实现而构建的。数字方法已经成功地在超导体YBa2Cu3O7−x上进行了测量。
A magnetoresistive technique has been developed for a pulsed fields facility with fields up to 60T. The digital approach for obtaining reliable signal-to-noise ratio results by means of four-probe AC measuring technique is presented. The algorithm based on a finite impulse response filter has been applied for the treatment of a magnetoresistive data. The filtering has been built around the zero-phase delay Parks–McClellan filter implementation. The digital approach has been successfully tested with measurements on a superconducting bulk YBa2Cu3O7−x.