公开(公告)号：US20210181273A1

公开(公告)日：2021-06-17

申请号：US16842503

申请日：2020-04-07

Applicant: Inner Mongolia University of Technology

Inventor： Jingshun Liu ,  Rui Liu ,  Guanyu Cao ,  Ze Li ,  Xufeng Wang

IPC: G01R33/09

Abstract: A GMI bio-magnetic measuring device based on a magnetic-bead concentration and a simulated lesion shape, includes an impedance analyzer, a Helmholtz coil, a metallic fiber, a fluxgate uniaxial magnetometer, a data acquisition card, a computer, a magnetic-bead-concentration adjustable platform and a lesion shape simulation platform. The metallic fiber is fixedly disposed on the magnetic-bead-concentration adjustable platform or the lesion shape simulation platform. Two terminals of the metallic fiber are electrically connected with a connection terminal of the magnetic-bead-concentration adjustable platform or the lesion shape simulation platform, and then are electrically connected with an input end of the impedance analyzer. An output end of the impedance analyzer is electrically connected with the computer. The magnetic-bead-concentration adjustable platform or the lesion shape simulation platform is placed at the interior of the Helmholtz coil. A probe of the fluxgate uniaxial magnetometer is disposed at the interior of the Helmholtz coil.

公开(公告)号：US11585786B2

公开(公告)日：2023-02-21

申请号：US17141779

申请日：2021-01-05

Applicant: Inner Mongolia University of Technology ,  Shandong University

Inventor： Ze Li ,  Jingshun Liu ,  Guanyu Cao ,  Rui Liu ,  Shuqin Xiao

IPC: G01N27/72 ,  G01N33/20 ,  H01R13/646 ,  G06F13/42

Abstract: The present disclosure provides a high-frequency magnetoimpedance testing apparatus and method. A testing platform in the apparatus is arranged within a Helmholtz coil and connected to a modulating electric current source and a high-frequency impedance analyzer, respectively; the Helmholtz coil is connected to a DC power source; a processor is connected to the high-frequency impedance analyzer and the DC power source separately; the testing platform includes a first double-sided copper-clad plate, and mode transition switches and connection terminals that are arranged on the first double-sided copper-clad plate; one end of the first double-sided copper-clad plate is connected to the high-frequency impedance analyzer, while the other end of the same is connected to a load; the mode transition switches are connected to the modulating electric current source. The present disclosure can realize in-situ current modulation of metallic fibers and high-frequency magnetoimpedance testing, and improve the testing accuracy.

公开(公告)号：US11333722B2

公开(公告)日：2022-05-17

申请号：US16842503

申请日：2020-04-07

Applicant: Inner Mongolia University of Technology

Inventor： Jingshun Liu ,  Rui Liu ,  Guanyu Cao ,  Ze Li ,  Xufeng Wang

IPC: G01R33/09

Abstract: A GMI bio-magnetic measuring device based on a magnetic-bead concentration and a simulated lesion shape, includes an impedance analyzer, a Helmholtz coil, a metallic fiber, a fluxgate uniaxial magnetometer, a data acquisition card, a computer, a magnetic-bead-concentration adjustable platform and a lesion shape simulation platform. The metallic fiber is fixedly disposed on the magnetic-bead-concentration adjustable platform or the lesion shape simulation platform. Two terminals of the metallic fiber are electrically connected with a connection terminal of the magnetic-bead-concentration adjustable platform or the lesion shape simulation platform, and then are electrically connected with an input end of the impedance analyzer. An output end of the impedance analyzer is electrically connected with the computer. The magnetic-bead-concentration adjustable platform or the lesion shape simulation platform is placed at the interior of the Helmholtz coil. A probe of the fluxgate uniaxial magnetometer is disposed at the interior of the Helmholtz coil.