Overview of Methods for Magnetic Susceptibility Measurement

In this paper, an overview of methods for magnetic susceptibility measurement is described. Older methods - Faraday's scale and Guoy's scale are based on force effects of magnetic filed to magnetized specimen. Another methods - Inductive methods, use change of coil inductance, when magnetically conductive specimen is embedded. Modern methods (SQUID magnetometer) benefits from quantum interference device, allowing such sensitive magnetic measurement, that magnetic quantum can be detected. Magnetic resonance is another modern way, how to measure susceptibility and some of MR based methods were introduced. The authors of this article mainly focus on the measurement of magnetic susceptibility of non-ferromagnetic material by means of MRI methods. In this respect, three basic measurement techniques are known and covered in this article.