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Continuous Piezoelectric Film Fabricated from Polar Polymeric Fibers

Unmet NeedPiezoelectricity in biopolymers has attracted considerable attention from the scientific community due to biopolymers’ well-defined structure and inducible permanent polarity. Piezoelectric films are used in a number of medical and practical applications, such as ultrasounds and microphones. Current films typically use polyglutamate, a biopolymer...

Published: 6/27/2024 | Inventor(s): James West, Kailang Ren, Michael Yu

Keywords(s): Industrial Manufacturing, Novel Materials

Category(s): Technology Classifications > Industrial Tech > Industrial Manufacturing, Technology Classifications > Industrial Tech > Materials, Technology Classifications > Industrial Tech, Technology Classifications > Engineering Tech > Industrial Manufacturing, Technology Classifications > Engineering Tech > Materials

Planar Microphone Based on Piezoelectric Electrospun Poly(gamma-benzyl-alpha, L-glutamate) Nanofibers

Unmet NeedModern velocity and pressure microphones are highly sensitive instruments. Exposure to extreme heat, pressure, water, or detritus can cause the instruments to fail. Although specialized microphones for use in extreme conditions do exist, they are expensive to manufacture, difficult to produce, and single purpose (i.e. water proof or heat resistant...

Published: 6/27/2024 | Inventor(s): James West, Kailang Ren, Michael Yu

Keywords(s): Acoustic, Environmental Sensing, Imaging and Sensing Systems, Industrial Manufacturing, Novel Materials, Sensors

Push-Pull Electret Transducer with Controlled Restoring Force for Microphones and Energy Harvesting

Unmet NeedThe traditional push-pull headphones and loudspeakers currently only generate limited amounts of power due to their small size. The limiting factor in the power output for these devices is the amount of movement of the diaphragm and the charge level of the electret. While the power generated by the current push-pull system is sufficient for...

Published: 6/27/2024 | Inventor(s): James West, Kailang Ren, Adebayo Eisape, Ugur Erturun, Gerhard Sessler

Keywords(s): Acoustic, Environmental Sensing, Imaging and Sensing Systems, Sensing Modality