Microsensors, arrays and automatic diagnosis of sensor faults

E. Gaura, R.M. Newman, Romanowicz B. Laudon M. (Editor)

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

Abstract

As man-made dynamical systems become increasingly complex, there is an ever-present need to ensure their safe and reliable operation. These requirements extend beyond the normally accepted safety-critical systems (e.g. nuclear reactors, chemical plants, and aircraft) to new systems such as autonomous vehicles and rapid transport systems. Early detection of faults and/or malfunctions in industrial processes and systems can help reduce downtimes and the incidence of catastrophic events. Sensors are essential components of any process or system which makes use of automatic control. It follows that an important aspect of any process/system fault diagnosis strategy is to attempt to determine their state of functionality. The paper opens a discussion on the appropriateness of local sensor health monitoring, fault diagnosis and measurement confidence indices. It looks at the techniques currently used for process fault detection, both centralised and hierarchical, and explores further the possibilities of transposing some of the design concepts from macrosystem level to microsystems, in respect to fault diagnosis. The use of Artificial Intelligence techniques is suggested for implementing on-chip sensor diagnosis. Micromachined accelerometers are considered as a case study.
Original languageEnglish
Title of host publication2003 Nanotechnology Conference and Trade Show
PublisherNSTI
Pages276-279
Number of pages4
Publication statusPublished - 2003
Event2003 Nanotechnology Conference and Trade Show - San Francisco, United States
Duration: 23 Feb 200327 Feb 2003

Conference

Conference2003 Nanotechnology Conference and Trade Show
Abbreviated titleNANOTECH 2003
CountryUnited States
CitySan Francisco
Period23/02/0327/02/03

Keywords

  • Accelerometers
  • Aircraft
  • Artificial intelligence
  • Chemical plants
  • Micromachining
  • Microprocessor chips
  • Neural networks
  • Nuclear reactors
  • Fault diagnosis
  • Sensor faults
  • Fault detection
  • Microsensors

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  • Cite this

    Gaura, E., Newman, R. M., & Laudon M., R. B. (Ed.) (2003). Microsensors, arrays and automatic diagnosis of sensor faults. In 2003 Nanotechnology Conference and Trade Show (pp. 276-279). NSTI.