A DEVICE AND A METHOD FOR MEASURING FLUID-MECHANICALLY EFFECTIVE MATERIAL PARAMETERS OF A FLUID

The device has a fluid pump e.g. axial pump such as blood pump, comprising a delivery element (2) i.e. rotor, placed in magnet bearings e.g. thrust bearings, where the bearing comprises permanent magnets (10, 10a) and control coils (16, 16a). An excitation device performs an oscillation excitation o...

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Bibliographic Details
Main Authors ARNDT, ANDREAS, NUESSER, PETER, GRAICHEN, KURT
Format Patent
LanguageEnglish
French
German
Published 20.11.2013
Subjects
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
TESTING
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Summary:The device has a fluid pump e.g. axial pump such as blood pump, comprising a delivery element (2) i.e. rotor, placed in magnet bearings e.g. thrust bearings, where the bearing comprises permanent magnets (10, 10a) and control coils (16, 16a). An excitation device performs an oscillation excitation of the delivery element against a counter-force applied by the bearings. Sensor devices (47, 49) measure an oscillation behavior of the delivery element. The sensor devices comprise two sensors measuring oscillation frequency and oscillation amplitude of the delivery element, respectively. An independent claim is also included for a method for measuring fluid-mechanically effective material parameters of a liquid.
Bibliography:Application Number: EP20100787037