Patents by Inventor Dongyan WAN

Dongyan WAN 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).

  • Flexible sensor with piezoelectric array applied for weld defect detection based on feature guided waves and its testing method
    Patent number: 11156587
    Abstract: Provided is a sensor and method for weld defect detection. The sensor includes several piezoelectric elements which form a matrix arranged on a flexible substrate. Each piezoelectric element is covered with a damping block and surrounded by sound absorbing material, within a flexible protective film. The sensor is simple, highly adaptable and high detection efficiency, which is especially suitable for the quick in-service inspection of long distance welds in large equipment, it has high degree of automation.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 26, 2021
    Inventors: Zhenying Xu, Hong Hong, Xiaolong Zhang, Han Du, Dongyan Wan, Yun Wang
  • A FLEXIBLE SENSOR WITH PIEZOELECTRIC ARRAY APPLIED FOR WELD DEFECT DETECTION BASED ON FEATURE GUIDED WAVES AND ITS TESTING METHOD
    Publication number: 20210208104
    Abstract: Provided is a sensor and method for weld defect detection. The sensor includes several piezoelectric elements which form a matrix arranged on a flexible substrate. Each piezoelectric element is covered with a damping block and surrounded by sound absorbing material, and packaged within a flexible protective film. The sensor is simple, highly adaptable and high detection efficiency, which is especially suitable for the quick in-service inspection of long distance welds in large equipment, it has high degree of automation.
    Type: Application
    Filed: September 1, 2017
    Publication date: July 8, 2021
    Inventors: Zhenying XU, Hong HONG, Xiaolong ZHANG, Han DU, Dongyan WAN, Yun WANG