Optical fiber flux sensor for application to the stator bars of the high voltage generator

摘要

The present invention relates to a magnetic flux sensor for measuring the radial component of the magnetic flux applied to the stator bars of the high voltage generator . The magnetic flux sensor includes a fiber Bragg grating is surrounded by a magnetostrictive coating is formed on the optical fiber . The magnetostrictive coating , reacts to magnetic flux changes distortion is applied to the fiber , the reflection wavelength of the Bragg grating is changed by such distortion , measurements of the magnetic flux is carried out thereby . According to one embodiment , the magnetic flux sensor or sensors 1 is disposed as an insulating layer of the stator bar in the individual .