G - Physics – 01 – N
Patent
G - Physics
01
N
349/36, 349/37
G01N 29/02 (2006.01) A61M 1/36 (2006.01) A61M 5/14 (2006.01) G01K 11/00 (2006.01) G01N 29/032 (2006.01) G01N 29/22 (2006.01) G01N 29/28 (2006.01)
Patent
CA 1262277
ULTRASONIC SENSOR FOR THE DETECTION OF GAS BUBBLES Abstract An ultrasonic sensor for non-invasive detection of air bubbles in a liquid flowing through a tube comprises two half-housings capable of being assembled together and two mutually opposed ultrasonic transducers, one installed in each of the half-housings. For acoustic coupling of the tube to the two mutually opposed ultrasonic transducers, each half-housing contains a chamber closed off by a flexible membrane and filled with a fluid highly transmissive of sound. The fluid displaced by the tube inserted between the two half- housings forces the membrane up in the form of a bulge on either side of the tube. In this way, an excellent contact is obtained between the chamber filled with sound-transmissive fluid and the tube. The membrane may be embedded into the side walls of the half- housings and cylindrically arched along the same.
516787
Heinze Werner
Scheller Thomas
Schreyer Johann
Wysocki Roman
Bod Gesellschaft Fur Beteiligungs - Und Vermogensverwaltung Mbh
Heinze Werner
Scheller Thomas
Schreyer Johann
Smart & Biggar
LandOfFree
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