Patents by Inventor Luowei Cao

Luowei Cao 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).

  • Ultrasonic in-situ automatic detection system for creep cracks on inner wall of hydrogen production furnace tube
    Patent number: 11754535
    Abstract: An ultrasonic in-situ automatic detection system for creep cracks on an inner wall of a hydrogen production furnace tube. The system comprises a computer, a multi-channel ultrasonic system control circuit, a motor driver board, a coreless motor, and a tube crawling machine. Multi-channel piezoelectric transducers are arranged in a circumferential direction of the furnace tube. The computer is configured to send detection instructions to the multi-channel ultrasonic system control circuit through a wireless network; the multi-channel ultrasonic system control circuit is configured to control multiple channels to simultaneously excite the piezoelectric transducers, receive echo signals from the piezoelectric transducers and then send the echo signals back to the computer in a wireless mode; and the motor driver board is configured to drive the coreless motor to drive the tube crawling machine to move, receive motion parameters fed back by motor encoders, and send the motion parameters back to the computer.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: September 12, 2023
    Assignees: China Special Equipment Inspection and Research Institute, Beijing University of Technology
    Inventors: Luowei Cao, Zhongtian Lyu, Yan Lyu, Cunfu He, Guorong Song, Zhiyuan Han
  • ULTRASONIC IN-SITU AUTOMATIC DETECTION SYSTEM FOR CREEP CRACKS ON INNER WALL OF HYDROGEN PRODUCTION FURNACE TUBE
    Publication number: 20220120713
    Abstract: An ultrasonic in-situ automatic detection system for creep cracks on an inner wall of a hydrogen production furnace tube. The system comprises a computer, a multi-channel ultrasonic system control circuit, a motor driver board, a coreless motor, and a tube crawling machine. Multi-channel piezoelectric transducers are arranged in a circumferential direction of the furnace tube. The computer is configured to send detection instructions to the multi-channel ultrasonic system control circuit through a wireless network; the multi-channel ultrasonic system control circuit is configured to control multiple channels to simultaneously excite the piezoelectric transducers, receive echo signals from the piezoelectric transducers and then send the echo signals back to the computer in a wireless mode; and the motor driver board is configured to drive the coreless motor to drive the tube crawling machine to move, receive motion parameters fed back by motor encoders, and send the motion parameters back to the computer.
    Type: Application
    Filed: July 29, 2021
    Publication date: April 21, 2022
    Inventors: Luowei Cao, Zhongtian LYU, Yan LYU, Cunfu HE, Guorong SONG, Zhiyuan HAN