Optical fiber sensor and magnetic field intensity measuring device

Abstract

The utility model belongs to the technical field of optical fiber sensing, and provides an optical fiber sensor and a magnetic field intensity measuring device. At least one optical fiber is arranged and extends along a preset direction, the extension length of the optical fiber is provided with a preset position, and a Bragg grating is formed at the preset position; the magnetic component is connected to a preset position of the optical fiber, and the magnetic component can generate position offset under the action of magnetic force, so that the Bragg grating at the preset position generates bending deformation perpendicular to the preset direction; the magnetic field intensity measuring device comprises the optical fiber sensor. The objective of the utility model is to solve the technical problem of inaccurate magnetic field intensity measurement caused by the fact that a current-carrying conductor is liable to be interfered by electromagnetism and radio frequency in the prior art. 本申请属于光纤传感技术领域，提供了一种光纤传感器及磁场强度测量装置，光纤传感器包括光纤及磁性部件；光纤设有至少一个，光纤沿预设方向延伸设置，光纤延伸长度上具有预设位置，预设位置形成有布拉格光栅；磁性部件连接于光纤的预设位置，磁性部件能够在磁力作用下发生位置偏移，以使预设位置的布拉格光栅产生垂直于预设方向的弯曲变形；磁场强度测量装置包括上述光纤传感器。本申请旨在解决现有技术中采用载流导体易受电磁和射频干扰而导致磁场强度测量不准确的技术问题。