ULTRASONIC TRANSDUCER AND MANUFACTURING METHOD THEREFOR

• Main Authors: QIU, Weibao, SU, Min, ZHANG, Zhiqiang, ZHENG, Hairong, LIANG, Suzi, SUN, Wu
• Format: Patent
• Language: Chinese; English; French
• Published: 03.10.2019
• Subjects: DIAGNOSIS; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; SURGERY; TRANSPORTING

Disclosed is an ultrasonic transducer, comprising a housing (5), wherein the housing (5) is internally provided with a piezoelectric layer (3), the piezoelectric layer (3) is formed by at least two piezoelectric array elements, and the frequency interval between the piezoelectric array elements is 50 kHz to 1.2 MHz. An acoustic lens (2) is provided at the front end of the piezoelectric layer (3). The acoustic lens (2) is used to make sure that the piezoelectric array elements of different frequencies have a common focus. Further disclosed is a method for manufacturing the ultrasonic transducer. La présente invention concerne un transducteur ultrasonore, comprenant un logement (5), dans lequel le logement (5) est muni au plan interne d'une couche piézoélectrique (3), la couche piézoélectrique (3) étant formée d'au moins deux éléments de réseau piézoélectriques, et l'intervalle de fréquence entre les éléments de réseau piézoélectriques étant de 50 kHz à 1,2 MHz. Une lentille acoustique (2) est disposée au nivea