Patents by Inventor Ruqi Ma

Ruqi Ma 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: 20240094072
    Abstract: A miniature combined multi-axis force sensor structure includes a sensor body, a first shell and a second shell, two horizontal main beams and two vertical main beams are arranged on the periphery of an inner round platform in a cross shape, tail ends of the horizontal main beams and the vertical main beams are each connected to a vertical floating beam, and the horizontal floating beams consist of two thin-walled cambered beams; two ends of the horizontal floating beam are each connected to an outer round platform by means of an annular platform; the sensor body is arranged between the first shell and the second shell; strain gauges are stuck on the horizontal main beams and the vertical main beams to form two Wheatstone bridges; and when force/torque acts on the cross beam, the sensor deforms, and the resistance value of strain gauge at corresponding position changes.
    Type: Application
    Filed: May 12, 2022
    Publication date: March 21, 2024
    Applicant: SOUTHEAST UNIVERSITY
    Inventors: Aiguo SONG, Jingjing XU, Shuyan YANG, Baoguo XU, Huijun LI, Ruqi MA
  • Patent number: 11920993
    Abstract: A miniature combined multi-axis force sensor structure includes a sensor body, a first shell and a second shell, two horizontal main beams and two vertical main beams are arranged on the periphery of an inner round platform in a cross shape, tail ends of the horizontal main beams and the vertical main beams are each connected to a vertical floating beam, and the horizontal floating beams consist of two thin-walled cambered beams; two ends of the horizontal floating beam are each connected to an outer round platform by means of an annular platform; the sensor body is arranged between the first shell and the second shell; strain gauges are stuck on the horizontal main beams and the vertical main beams to form two Wheatstone bridges; and when force/torque acts on the cross beam, the sensor deforms, and the resistance value of strain gauge at corresponding position changes.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: March 5, 2024
    Assignee: SOUTHEAST UNIVERSITY
    Inventors: Aiguo Song, Jingjing Xu, Shuyan Yang, Baoguo Xu, Huijun Li, Ruqi Ma