Three-dimensional digital ultrasound tracking system

Details Three-dimensional digital ultrasound tracking system Three-dimensional digital ultrasound tracking system

A - Human Necessities

61

B

A61B 8/13 (2006.01) A61B 5/042 (2006.01) A61B 5/06 (2006.01) A61B 8/08 (2006.01) A61B 19/00 (2006.01) G01B 17/00 (2006.01) G01H 3/00 (2006.01) G01H 5/00 (2006.01) G01S 5/18 (2006.01) G01S 5/22 (2006.01) G01S 5/30 (2006.01) G01S 7/52 (2006.01) G01S 7/62 (2006.01) G01S 11/14 (2006.01) G01S 15/66 (2006.01) G01S 15/87 (2006.01) G01S 15/88 (2006.01) G01S 15/89 (2006.01) A61B 8/12 (2006.01) A61B 17/34 (2006.01) A61B 18/14 (2006.01) G01S 7/521 (2006.01) G01S 15/02 (2006.01) G01S 15/10 (2006.01)

Patent

CA 2215508

A method and apparatus for simultaneous measurement of multiple distances by means of networked piezoelectric transducers. Through the use of high frequency digital counters, the propagation delay between the activation of an ultrasonic transducer and the reception by similar transducers is quickly and accurately defined. By alternating the duty cycle between transmit and receive modes, the system can track and triangulate the three-dimensional positions for each transducer.

Procédé et appareil permettant de mesurer simultanément des distances multiples au moyen de transducteurs piézo-électriques en réseau. L'utilisation de compteurs numériques haute fréquence permet de définir rapidement et avec précision le temps de propagation entre l'activation d'un transducteur ultrasonique et la réception par des transducteurs similaires. En faisant alterner le cycle opératoire entre le mode transmission et le mode réception, le système est en mesure de poursuivre et trianguler les positions tridimensionnelles pour chaque transducteur.

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