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A trapezoidal-wave electromagnetic blood flowmeter

A trapezoidal-wave electromagnetic blood flowmeter Abstract A new, electromagnetic blood flowmeter is described which has been designed to provide the physiologist with a reliable instrument allowing the measurement of blood flow in the unbroken blood vessel. The transducer has been made small enough to allow implantation in the animal for relatively long periods of time. In this way the flow in a number of vessels can be measured simultaneously in the unanesthetized animal. This flowmeter is different from existing flowmeters because of the unique trapezoidal-wave current that energizes the magnet. A method for calibrating the instrument is described and data is presented showing the femoral artery flow in response to epinephrine and norepinephrine, and hepatic artery flow in response to norepinephrine. Note: (With the Engineering Assistance of Paul Salz) Submitted on January 16, 1961 Copyright © 1961 the American Physiological Society http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Physiology The American Physiological Society

A trapezoidal-wave electromagnetic blood flowmeter

Journal of Applied Physiology , Volume 16 (3): 566 – May 1, 1961

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Publisher
The American Physiological Society
Copyright
Copyright © 1961 the American Physiological Society
ISSN
8750-7587
eISSN
1522-1601
Publisher site
See Article on Publisher Site

Abstract

Abstract A new, electromagnetic blood flowmeter is described which has been designed to provide the physiologist with a reliable instrument allowing the measurement of blood flow in the unbroken blood vessel. The transducer has been made small enough to allow implantation in the animal for relatively long periods of time. In this way the flow in a number of vessels can be measured simultaneously in the unanesthetized animal. This flowmeter is different from existing flowmeters because of the unique trapezoidal-wave current that energizes the magnet. A method for calibrating the instrument is described and data is presented showing the femoral artery flow in response to epinephrine and norepinephrine, and hepatic artery flow in response to norepinephrine. Note: (With the Engineering Assistance of Paul Salz) Submitted on January 16, 1961 Copyright © 1961 the American Physiological Society

Journal

Journal of Applied PhysiologyThe American Physiological Society

Published: May 1, 1961

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