Ultrasonic ranging in the near zone

Details Ultrasonic ranging in the near zone Ultrasonic ranging in the near zone

G - Physics

01

S

G01S 15/18 (2006.01)

Patent

CA 2601193

An ultrasonic ranging device (100) for ultrasonic ranging in the near zone. The device may include a transducer (135) for generating an ultrasonic signal and for detecting an echo signal. The device may also include a processor (110) for calculating the distance to a target object based on a first time period defined by a first set of ultrasonic signals when the target object is located outside the near zone and a second time period defined by a second set of ultrasonic signals when the target object is located within the near zone. The processor may also adjust the amplitude of the generated ultrasonic signal until the first set of ultrasonic signals is detected at the transducer.

Cette invention porte sur un dispositif de télémétrie par ultrasons pour télémétrie par ultrasons dans la zone d'induction. Le dispositif peut comprendre un transducteur chargé de générer un signal ultrasonore et de détecter un signal d'écho. Le dispositif peut également comprendre un processeur chargé de calculer la distance qui le sépare d'un objet cible sur la base d'une première durée définie par un premier ensemble de signaux ultrasonores lorsque l'objet cible se trouve hors de la zone d'induction et sur la base d'une seconde durée définie par un second ensemble de signaux ultrasonores lorsque l'objet cible se trouve dans la zone d'induction. Le processeur peut également régler l'amplitude du signal ultrasonore généré jusqu'à ce que le premier ensemble de signaux ultrasonores soit détecté au niveau du transducteur.

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