Advances in self-validating instrumentation

M. Henry; M. Duta

Advances in self-validating instrumentation

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

Abstract

This paper provides an overview into recent developments in self-validating sensors. This concept assumes the availability of internal computing power for self-diagnostics, and of digital communications to convey measurement and diagnostic data. A generic set of metrics are proposed for describing measurement quality, including online uncertainty. A SEVA instrument, based on the Coriolis mass flow meter is described; its ability to detect and compensate for the effects of two-phase flow has been implemented in a commercial meter. SEVA has been incorporated into a British Standard, which is currently being extended. Other related standardisation efforts include work by the European user organisations WIB and NAMUR, who are collaborating on an initiative to develop a common framework for describing sensor diagnostics on-line. Comparison with the SEVA Coriolis meter show some of the limitations of the WIB approach. Recent theoretical developments in SEVA include a simple technique for combining the outputs of redundant SEVA sensors for consistency checking and the calculation of a combined best estimate.

Original language	English
Title of host publication	10th IMEKO TC7 Symposium on Advances of Measurement Science 2004
Publisher	Curran Associates inc.
Pages	435-440
Number of pages	6
ISBN (Print)	978-1-63439-188-7
Publication status	Published - 2004
Externally published	Yes
Event	IMEKO TC7 Symposium on Advances of Measurement Science 2004 - St. Petersburg, Russian Federation Duration: 30 Jun 2004 → 2 Jul 2004 Conference number: 10

Conference

Conference	IMEKO TC7 Symposium on Advances of Measurement Science 2004
Country	Russian Federation
City	St. Petersburg
Period	30/06/04 → 2/07/04

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Henry, M., & Duta, M. (2004). Advances in self-validating instrumentation. In 10th IMEKO TC7 Symposium on Advances of Measurement Science 2004 (pp. 435-440). Curran Associates inc..

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