Fault detection in multiply-redundant measurement systems via sequential testing.

Research output: Contribution to journalConference articlepeer-review


The theory and application of a sequential test procedure for fault detection and isolation. The test procedure is suited for development of intelligent instrumentation in strategic processes like aircraft and nuclear plants where redundant measurements are usually available for individual critical variables. The test procedure consists of (1) a generic redundancy management procedure which is essentially independent of the fault detection strategy and measurement noise statistics, and (2) a modified version of sequential probability ratio test (SPRT) algorithm for fault detection and isolation, which functions within the framework of the aforesaid redundancy management procedure. The sequential test procedure is suitable for real-time applications using commercially available microcomputers and its efficacy has been verified by online fault detection in an operating nuclear reactor.

Original languageEnglish (US)
Pages (from-to)1400-1405
Number of pages6
JournalProceedings of the American Control Conference
Volume88 pt 1-3
StatePublished - 1988

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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