磁流体型光纤磁场传感研究进展-从标量到矢量

Research progress of the magnetic-fluids-based optical fiber magnetic field sensing – from scalar to vector

摘要:

磁流体具有优异的磁光特性，为光纤磁场传感器的实现提供了一种新途径，经十多年发展，已经成为光纤磁传感领域的一个重要研究方向。目前，已有大量的基于不同结构和原理的磁流体型光纤磁场传感器被相继提出，且总体上经历了从标量到矢量磁场传感的发展，本文以该发展脉络为主线，对磁流体的磁光特性、传感器的实现方法进行梳理和总结，最后指出当前仍存在的一些问题并进行展望。

Abstract:

Magnetic fluids (MF) feature with various excellent magneto-optical properties, which provides a new way for the realization of optical fiber magnetic field sensors. After more than ten years of development, it has become an important research direction in the field of optical fiber magnetic sensing. A large number of MF based optical-fiber magnetic field sensors employing different structures and principles have been proposed so far, and in general they have experienced the development from scalar to vector magnetic field sensing. In this review, the magneto-optical properties of MF and realization methods of the MF-based magnetic sensors are sorted out and summarized. Finally, some problems that still exist at present are pointed out, and prospections are made about this field.