Yan Lyu

Title: Yan Lyu: Innovator in Ultrasonic Detection Technologies

Introduction

Yan Lyu is a prominent inventor based in Beijing, China. He has made significant contributions to the field of ultrasonic detection technologies, particularly in the context of lithium-ion batteries and hydrogen production furnace tubes. With a total of 2 patents, his work showcases innovative methods for in-situ detection and monitoring.

Latest Patents

One of Yan Lyu's latest patents is the "In-situ ultrasonic method for detecting the state of charge in soft-packaged lithium-ion batteries." This invention discloses a method for in-situ detection of the state of charge (SOC) of pouch-type lithium-ion batteries using ultrasonic guided waves. The method involves attaching two circular piezoelectric patches symmetrically on the surface of the battery. A function generator produces a Hanning-window-modulated five-cycle sine signal to excite one patch, generating ultrasonic guided waves that are received by the other patch. This innovative approach allows for the detection of the SOC without the need to record external parameters such as current and voltage.

Another notable patent is the "Ultrasonic in-situ automatic detection system for creep cracks on the inner wall of a hydrogen production furnace tube." This system comprises a computer, a multi-channel ultrasonic system control circuit, a motor driver board, a coreless motor, and a tube crawling machine. The system is designed to detect creep cracks by using multi-channel piezoelectric transducers arranged circumferentially around the furnace tube. The computer sends detection instructions wirelessly, allowing for simultaneous excitation and echo signal reception from the transducers.

Career Highlights

Yan Lyu has worked with esteemed institutions such as Beijing University of Technology and the China Special Equipment Inspection and Research Institute. His experience in these organizations has contributed to his expertise in ultrasonic technologies and their applications in various industries.

Collaborations

Throughout his career, Yan has collaborated with notable colleagues, including Cunfu He and Luowei Cao. These partnerships have fostered innovation and advancement in the field of ultrasonic detection.

Conclusion

Yan Lyu's contributions to ultrasonic detection technologies highlight his role as an influential inventor. His innovative patents and collaborations reflect his commitment to advancing the field and improving safety and efficiency in critical applications.