Patents by Inventor Qingsheng Xue

Qingsheng Xue 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).

  • Degassing-free underwater dissolved carbon dioxide detection device and detection method
    Patent number: 11949208
    Abstract: The present disclosure discloses a degassing-free underwater dissolved carbon dioxide detection device and a detection method. The degassing-free underwater dissolved carbon dioxide detection device includes a computer, which is used to provide the driving signal and controlling parameters for the power tuning unit; the computer is connected with a laser driving control module and the power tuning unit, respectively; the laser driving control module is connected with a laser; the laser is connected with a photo-isolator; the photo-isolator is connected with a thulium-doped fiber vertical-cavity laser system; the thulium-doped fiber vertical-cavity laser system is connected with a photoacoustic cell system through a fiber collimator; the photoacoustic cell system is connected with a pre-amplifier circuit and a lock-in amplifier in sequence, and the lock-in amplifier is connected with the computer.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: April 2, 2024
    Assignee: Ocean University Of China
    Inventors: Fupeng Wang, Rui Liang, Qingsheng Xue, Jinghua Wu, Xijie Hao
  • Degassing-Free Underwater Dissolved Carbon Dioxide Detection Device And Detection Method
    Publication number: 20230052245
    Abstract: The present disclosure discloses a degassing-free underwater dissolved carbon dioxide detection device and a detection method. The degassing-free underwater dissolved carbon dioxide detection device includes a computer, which is used to provide the driving signal and controlling parameters for the power tuning unit; the computer is connected with a laser driving control module and the power tuning unit, respectively; the laser driving control module is connected with a laser; the laser is connected with a photo-isolator; the photo-isolator is connected with a thulium-doped fiber vertical-cavity laser system; the thulium-doped fiber vertical-cavity laser system is connected with a photoacoustic cell system through a fiber collimator; the photoacoustic cell system is connected with a pre-amplifier circuit and a lock-in amplifier in sequence, and the lock-in amplifier is connected with the computer.
    Type: Application
    Filed: November 10, 2021
    Publication date: February 16, 2023
    Inventors: Fupeng Wang, Rui Liang, Qingsheng Xue, Jinghua Wu, Xijie Hao