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Quasi-Static Self-Powering, Sensing, and Data Logging

Detailed Technology Description

Executive Summary Slowly acting events can be very difficult to sense, especially for self-powered sensors.  Most sensors require an external energy source in order to detect the desired property and report results. For some applications however, a self-powered sensor is desirable that uses energy from the object being sensed in order to record the data. Piezoelectric and other devices have been developed for sensing applications where the property being sensed is as low as 5-10 Hz. However for applications that occur slowly, such as <1 Hz or very slowly <<1 Hz, a piezoelectric system will not produce enough energy to record the data. Description of Technology Michigan State University has developed technology capable of recoding very slow acting events.  The technology can be implemented for general 1-, 2-, and 3-dimensional design solutions.  These solutions can be tailored for specific applications of a variety of events or parameters that generate sufficient response to sense and record the data. A 1-dimensional displacement sensor uses the buckling properties of a sensing element to generate energy and an electric data logging response based upon the magnitude of the energy generated. This data can then be interpreted to sense the response of displacement over time.  The sensor can be calibrated to sense different energy outputs from the buckling motion of the buckling strip. The same principles can be applied to 2- or 3- dimensional events depending upon the given application. Key BenefitsSensing slowly acting events (<<1 Hz)Self-powered sensingCustomizable application specific designBroad range of applicationsData-logging ApplicationsBridge/roadway/structural sensing Pressure sensing Temperature sensing  Patent Status:   Patent Pending Licensing Rights Available Full licensing rights available Inventors: Nizar Lajnef, Shantanu Chakrabartty, Rigoberto Burgeuno, Wassim Borchani Tech ID: TEC2014-0022

*Abstract

None

*Principal Investigator

Name: Nizar Lajnef, Assistant Professor

Department: Civil & Environmental Engineering

Name: Shantanu Chakrabartty, Professor

Department: Computer Science & Engineering

Name: Rigoberto Burgueno, Associate Professor

Department: Civil and Environmental Engineering

Name: Borchani Wassim, Doctoral Student

Department: Department of Civil and Environmental Engineering

Country/Region

USA