Patents by Inventor Jun-Chao SUN

Jun-Chao SUN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220342013
    Abstract: A measuring device for determining magnetic properties of a magnetizable test specimen comprises a measuring coil winding which passes around a magnetizable measuring coil core. The measuring coil core comprises magnetic flux passage faces arranged at a distance from one another. The test specimen is arranged adjacently to the magnetic flux passage faces. A high-current pulse through the measuring coil winding causes a magnetic flux through the measuring coil core and the test specimen. A temporal profile of electrical characteristic variables of the measuring coil winding is detected using a sensor device. The electrical characteristic variables of the measuring coil winding detected by the sensor device are set in a ratio to additionally ascertained electrical characteristic variables of the measuring coil winding without the test specimen. A magnetic property of the test specimen is determined from the ratio of the electrical characteristic variables to one another.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Applicant: Bs & T Frankfurt am Main GmbH
    Inventor: Jun Chao SUN
  • Publication number: 20210396796
    Abstract: Determining the inductance L of an electrical component includes a high current pulse being generated and conducted through the electrical component. The electronic component is arranged in an electrical resonant circuit, in series with a reference component and with at least one capacitor. The resonant circuit is excited to oscillate by the high current pulse. Electrical properties of the electrical component are measured for a measuring duration, and the inductance L of the electrical component is determined from the measured electrical properties. A voltage drop U across the electrical component and a reference voltage drop UR across the reference component having a known reference inductance LR is measured. The inductance L of the electrical component is calculated as a product of the reference inductance LR with a proportionality factor, which is dependent on the measured voltage drop U and the measured reference voltage drop UR.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Applicant: BS & T Frankfurt am Main GmbH
    Inventors: Jun-Chao SUN, Christian TESKE