Designing a Triaxial Gaussmeter for Magnetic Impedance Tomography

Magnetic impedance tomography is an image reconstruction method exploiting the conductivity distribution on the surface of the investigated sample. To facilitate the actual reconstruction, we have to map the magnetic field on the given surface; however, none of the commercially available Gaussmeters enables the user to employ an external signal for synchronous detection, meaning that our device is unique in this respect. The applicability of the proposed design in practical measurement is demonstrated within the paper.