Yuanfei Li

Title: Yuanfei Li and Portable Internal Friction Measurement

Introduction

Yuanfei Li is an inventor associated with Suzhou, China. His patent work includes an instrument and method for measuring internal friction, with a focus on mechanically exciting a sample and measuring its vibration without contact. The supplied information lists 1 patent.

Latest Patents

Li’s listed patent is “Portable Internal Friction Measuring Instrument and Internal Friction Measurement Method.” The invention describes an instrument with a cavity, sample fixture, fixing plate, heating plate, thermal barrier cover, excitation assembly, and vibration sensor.

The excitation assembly uses a rotatable vibration impeller with at least one protrusion. As the impeller rotates, the protrusion intermittently toggles the sample’s lower edge to excite vibration. The instrument determines the sample’s vibration amplitude from the angle difference between emitted and reflected light, enabling non-contact measurement.

Career Highlights

The supplied career information associates Li with CGN Power Co., Ltd. and Suzhou Nuclear Power Research Institute. His listed invention addresses portable internal-friction measurement through a combination of mechanical excitation and optical sensing.

Collaborations

Jian Yin and Qiwei Quan are listed as Li’s coworkers. The available information does not specify their roles in the patent or their particular contributions.

Conclusion

Yuanfei Li’s listed patent presents a portable approach to internal-friction measurement, using mechanical toggling to excite a sample and optical sensing to measure its vibration without contact.