Battelle Memorial Institute

Florida State University Research Foundation, Inc.

Soochow University

Tao Liu

Steven Risser

Amy M Heintz

Bhima Rao Vijayendran

Zhiyong Liang

Joel D Elhard

Bryon P Moore

Yan Li

Changchun Zeng

Sida Luo

Ben Wang

Chun Zhang

Ying Zhu

Yanbo Yao

Jiangjiang Luo

Xiaoshuang Duan

Chia-Feng Tsai

Charles K Ansong

Geremy Cd Clair

Steven M Risser

The present invention includes scalable and cost-effective auxetic foam sensors (AFS) created through conformably coating a thin conductive nanomaterial-sensing layer on a porous substrate having a negative Poisson's ratio. In general, the auxetic foam sensors possess multimodal sensing capability, such as large deformation sensing, small pressure sensing, shear/torsion sensing and vibration sensing and excellent robustness in humidity environment.

Negative Poisson ratio piezoresistive sensor and method of manufacture

The present invention discloses a method for manufacturing a high-sensitivity piezoresistive sensor using a multi-level structure design, including the following steps: forming first-level basic geometrical units formed of basic structural units on a substrate, where each first-level basic geometrical unit is a two-dimensional or three-dimensional network structure formed by stacking several basic structural units; stacking and combining several first-level basic geometrical units in an array to form a second-level geometrical structure, and forming a contact connection area located between adjacent first-level basic geometrical units; and dispensing a conductive adhesive in at least two positions on the substrate to form electrodes of a piezoresistive sensor, so as to obtain the piezoresistive sensor. A high-sensitivity piezoresistive sensor obtained by using the method of the present invention has flexible design and simple fabrication, can be desirably combined with various existing sensor fabrication methods, and has general applicability.

Method for manufacturing high-sensitivity piezoresistive sensor using multi-level structure design

Negative poisson ratio piezoresistive sensor and method of manufacture

In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.

Modified carbon nanotubes and methods of forming carbon nanotubes

A sensor is provided, which includes a plurality of conducting elements spaced apart from each other and at least one deformable electrolyte bridge contacting each of the conducting elements at one or more contact points having an aggregate contact area. Upon formation of an ionic circuit between two of the conducting elements, a first resistivity between the two conducting element exists. Upon application of a compressive force on the at least one deformable electrolyte bridge directed toward at least one of the conducting elements, the aggregate contact area increases such that a second resistivity between the two conducting elements exists.

Sensor and a method of making a sensor

Growing community of inventors

Tallahassee, FL, United States of America

Tao Liu