Patents by Inventor Yuh. J CHAO

Yuh. J CHAO 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).

  • Patent number: 11994442
    Abstract: The embodiment of the present invention discloses an underwater explosion pressure test experiment system and method. The invention including: container and drug pack are used to simulate underwater explosion scenes. Projector projects scattered speckles on the water surface. Two high-speed cameras collect images of the first water surface fluctuation. The strain at a certain point in the first water surface is calculated according to the scattered speckles. The K value of the corresponding explosive is calculated from the elastic modulus of the strain and water, and based on the calculated K value, the curve of the explosion pressure at different points in the water with the distance from the explosion source is calculated according to the formula, and the explosion pressure at any point in the water is determined according to the curve. The invention is suitable for use in an underwater explosion pressure measurement experiment.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 28, 2024
    Assignee: CHINA UNIVERSITY OF MINING & TECHNOLOGY-BEJING
    Inventors: Renshu Yang, Liyun Yang, Jinjing Zuo, Chenxi Ding, Yuh. J Chao
  • Publication number: 20210348975
    Abstract: The embodiment of the present invention discloses an underwater explosion pressure test experiment system and method. The invention including: container and drug pack are used to simulate underwater explosion scenes. Projector projects scattered speckles on the water surface. Two high-speed cameras collect images of the first water surface fluctuation. The strain at a certain point in the first water surface is calculated according to the scattered speckles. The K value of the corresponding explosive is calculated from the elastic modulus of the strain and water, and based on the calculated K value, the curve of the explosion pressure at different points in the water with the distance from the explosion source is calculated according to the formula, and the explosion pressure at any point in the water is determined according to the curve. The invention is suitable for use in an underwater explosion pressure measurement experiment.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 11, 2021
    Inventors: Renshu YANG, Liyun YANG, Jinjing ZUO, Chenxi DING, Yuh. J CHAO