A fully self-powered hybrid system based on CMOS ICs and large-area electronics for large-scale strain monitoring

Yingzhe Hu, Liechao Huang, Josue Sanz Robinson, Warren Rieutort-Louis, Sigurd Wagner, James Christopher Sturm, Naveen Verma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Large-area electronics (LAE) enables diverse transducers on large, flexible substrates (∼10m2), making possible expansive sensor arrays and energy harvesting devices. We present a second-generation system for high-resolution structural-health monitoring of bridges achieved by combining LAE with CMOS ICs in a scalable architecture. It aims to enable strain sensing scalable down to cm-resolution over the large-area sheets. Compared to previous work [1], the system presents several advances, including self-powered operation with embedded energy harvesting, generalized readout and control interfaces for sensor arrays based on thin-film transistors (TFTs), and full integration of instrumentation and communication circuits for multi-sensor acquisition, digitization, and self calibration. The instrumentation subsystem achieves multi-channel strain sensing with sensitivity of 23μStrainRMS, at an energy/measurement of 148nJ and 286nJ for readout and sensor-access control, respectively. The power-management subsystem achieves 30% efficiency for power inversion and inductive power delivery using a thin-film harvesting circuit with a solar module, and 80.5% overall efficiency for generating three voltage supplies via CMOS DC-DC converters.

Original languageEnglish (US)
Title of host publication2013 Symposium on VLSI Circuits, VLSIC 2013 - Digest of Technical Papers
StatePublished - Sep 17 2013
Event2013 Symposium on VLSI Circuits, VLSIC 2013 - Kyoto, Japan
Duration: Jun 12 2013Jun 14 2013

Other

Other2013 Symposium on VLSI Circuits, VLSIC 2013
CountryJapan
CityKyoto
Period6/12/136/14/13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Hu, Y., Huang, L., Robinson, J. S., Rieutort-Louis, W., Wagner, S., Sturm, J. C., & Verma, N. (2013). A fully self-powered hybrid system based on CMOS ICs and large-area electronics for large-scale strain monitoring. In 2013 Symposium on VLSI Circuits, VLSIC 2013 - Digest of Technical Papers [6578666]