Cheri X Deng

Title: Cheri X. Deng: Inventor Advancing Acoustic Rheometry

Introduction

Cheri X. Deng is an inventor based in Ann Arbor, Michigan, whose work includes acoustic methods for characterizing soft, viscoelastic materials. Her listed portfolio includes 3 patents, and her inventions describe techniques that use ultrasound to measure material motion and infer viscoelastic properties.

Latest Patents

Tensile Acoustic Rheometry for Characterization of Viscoelastic Materials. This invention describes tensile acoustic rheometry, or TAR, for measuring the rheological properties of a soft material. A focused ultrasound transducer applies an acoustic pulse that induces oscillatory motion, while a co-linear, confocal transducer tracks the sample’s movement through pulse-echo measurements. A processor analyzes the resulting displacement and frequency information to determine the material’s viscoelastic properties.

Resonant Acoustic Rheometry for Characterization of Soft Viscoelastic Materials. This invention uses acoustic pulses to induce and measure surface oscillations in a sample. The system analyzes the sample’s dynamic displacement, resonant oscillation frequency, and damping coefficient to assess its viscoelastic properties. Potential applications described include characterizing blood clotting, identifying blood clots, and evaluating gelation, tumors, or fibrosis.

Career Highlights

Deng’s listed inventions focus on applying ultrasound-based measurement to the study of soft materials. The techniques combine acoustic excitation, echo detection, and signal processing to derive information about material behavior.

Collaborations

Deng’s listed coworkers include Jan P. Stegemann and Eric C. Hobson. Her company affiliation is the University of Michigan.

Conclusion

Cheri X. Deng’s patent work highlights acoustic rheometry as a way to characterize soft viscoelastic materials, with potential relevance to biomedical research and assessment.