Patents by Inventor Cuiyun JIN

Cuiyun JIN 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).

  • Method for calibrating phase-frequency characteristic of low frequence accelerometer based on time-spatial synchronization
    Patent number: 11067596
    Abstract: A method for calibrating phase-frequency characteristics of low frequency accelerometer based on time-spatial synchronization, comprises: measuring excitation displacement of the low frequency accelerometer to realize excitation acceleration measurement of the low frequency accelerometer; realizing alignment of the excitation acceleration signal of the low frequency accelerometer with output voltage signal of the low frequency accelerometer in the spatial domain based on TSS technology, fitting the excitation acceleration signal and the output voltage signal respectively by SAM, and calculating phase ?F of the excitation acceleration signal at a zero position of horizontal long-stroke shaker and phase ?Z of the output voltage signal at the time when a zero encoder on the shaker outputs pulse; and calculating the sensitivity phase of the low frequency accelerometer with ?Z and ?F, and determining phase-frequency characteristics of the low frequency accelerometer by calibrating the sensitivity phases at differe
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: July 20, 2021
    Assignees: National Institute of Metrology, Beijing University of Chemical Technology
    Inventors: Chenguang Cai, Ming Yang, Zhihua Liu, Hao Cheng, Cuiyun Jin
  • METHOD FOR CALIBRATING PHASE-FREQUENCY CHARACTERISTIC OF LOW FREQUENCE ACCELEROMETER BASED ON TIME-SPATIAL SYNCHONIZATION
    Publication number: 20210109125
    Abstract: A method for calibrating phase-frequency characteristics of low frequency accelerometer based on time-spatial synchronization, comprises: measuring excitation displacement of the low frequency accelerometer to realize excitation acceleration measurement of the low frequency accelerometer; realizing alignment of the excitation acceleration signal of the low frequency accelerometer with output voltage signal of the low frequency accelerometer in the spatial domain based on TSS technology, fitting the excitation acceleration signal and the output voltage signal respectively by SAM, and calculating phase ?F of the excitation acceleration signal at a zero position of horizontal long-stroke shaker and phase ?Z of the output voltage signal at the time when a zero encoder on the shaker outputs pulse; and calculating the sensitivity phase of the low frequency accelerometer with ?Z and ?F, and determining phase-frequency characteristics of the low frequency accelerometer by calibrating the sensitivity phases at differe
    Type: Application
    Filed: October 14, 2019
    Publication date: April 15, 2021
    Inventors: Chenguang CAI, Ming YANG, Zhihua LIU, Hao CHENG, Cuiyun JIN