Acoustic fluid level sensor

Details Acoustic fluid level sensor Acoustic fluid level sensor

G - Physics

01

S

G01S 15/08 (2006.01) A61F 9/007 (2006.01) G01F 23/296 (2006.01)

Patent

CA 2576365

An acoustic fluid level sensor for use in a chamber contained in a surgical cassette. The sensor has an ultrasound transducer mounted on the outside of the bottom of a fluid chamber and is acoustically coupled to the chamber. The transducer sends a pulse ultrasound signal through the chamber and any liquid in the chamber. The signal is reflected back by the air/liquid interface and captured by the transducer. The time required for the signal to travel to and from the transducer will vary with the amount of fluid in the chamber and is indicative of the level of fluid in the chamber.

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