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Apparent transducer non-reciprocity in an ultrasonic flow meter
LuleƄ University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0003-3874-9968
2002 (English)In: Ultrasonics, ISSN 0041-624X, E-ISSN 1874-9968, Vol. 40, no 1-8, 403-405 p.Article in journal (Refereed) Published
Abstract [en]

This paper investigates the effects of non-identical ultrasonic transducers on reciprocity and zero-flow calibration in transit time flow meters. According to the theorem of reciprocity, there should not be any difference between the up- and downstream acoustic times of flight in a zero-flow situation. This would thus eliminate zero-flow estimation drifts. The flow meter is modeled as a one dimensional system with equivalent electrical circuits and simulated with simulation program with integrated circuits emphasis. The work shows that variations between the two transducers cause false estimates of flow and indicate which parameters have the largest influence. It indicates that reciprocity holds only for identical transducers.

Place, publisher, year, edition, pages
2002. Vol. 40, no 1-8, 403-405 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-10886DOI: 10.1016/S0041-624X(02)00152-XLocal ID: 9c3bfba0-5482-11db-9592-000ea68e967bOAI: oai:DiVA.org:ltu-10886DiVA: diva2:983834
Note

Validerad; 2002; 20061005 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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fulltext(155 kB)49 downloads
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van Deventer, JanDelsing, Jerker

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