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本文介绍了测量直流强磁埸的几种方法,测量发电机法、霍尔效应法、高斯效应法、法拉弟效应法、以固体中发生的磁性等离子区现象为基础的测试方法以及按磁共振法。介绍了这些方法的基本原理,仪器的桔构、应用范围、测量准确度和误差的来源。提出了扩大测量范围、减小测量误差的某些方法。着重介绍了核磁共振法,指出这些方法准确度很高,可以作为标准方法来校准其他的测试仪,迫切的问题是加工制造高稳定的均匀强磁埸源。目前这些方法的测量上限约为几万高斯(或奥斯特),更高的高感应强度的测试,需今后进一步研究。
This article describes several methods for measuring DC strong magnetic fields, measuring generator law, Hall effect law, Gaussian effect law, Faraday’s effect law, test methods based on magnetic plasma phenomena occurring in solids, law. The basic principles of these methods are introduced, the orange structure of the instrument, the scope of application, the measurement accuracy and the source of error. Some methods to expand the measurement range and reduce the measurement error are proposed. The nuclear magnetic resonance method is emphatically introduced. It is pointed out that these methods are of high accuracy and can be used as a standard method to calibrate other testers. The urgent problem is to process and manufacture highly stable and uniform ferromagnetic sources. Currently these methods measure the upper limit of about tens of thousands of Gauss (or Auster), higher high-intensity test, to be further studied in the future.