PMID: 145583Nov 25, 1977Paper

A system for intravascular, radially orientation-independent electromagnetic flow- and diameter-sensing

Pflügers Archiv : European journal of physiology
A Kolin


The difficulty of optimally orienting an intravascular loop probe of an extracorporeal field electromagnetic flow meter is circumvented by uniting 2 mutually perpendicular loop sensors into a single flow-diameter probe. When one of the loops is unfavorably oriented in the magnetic field, the orientations of the other loop is more favorable. The most unfavorable case is a 45 degrees angle between the magnetic field and the planes of the loops, when the signal drops to 70.7% of the optimal value. By taking the square root of the sum of the squares of the 2 loop transducer signals, one obtains an output for flow and diameter measurements which is independent of the probe orientation. This operation can be accomplished electronically.


Apr 6, 1976·Pflügers Archiv : European journal of physiology·A KolinH D Snow
Jan 1, 1978·AJR. American Journal of Roentgenology·A KolinR Steckel
Apr 1, 1974·Proceedings of the National Academy of Sciences of the United States of America·A KolinR N Macalpin
Mar 1, 1970·Proceedings of the National Academy of Sciences of the United States of America·A Kolin

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Jul 1, 1980·Pflügers Archiv : European journal of physiology·A Kolin
May 1, 1984·Medical & Biological Engineering & Computing·D G Wyatt
Mar 1, 1981·Medical & Biological Engineering & Computing·E J van der ScheeA W Zwamborn
Nov 14, 1978·Pflügers Archiv : European journal of physiology·J HoltzA Kolin
Feb 1, 1982·The Journal of Surgical Research·D H LowensteinR B Rutherford

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