METHOD FOR DESIGNING PIEZOELECTRIC ELEMENT UNIT, ULTRASONIC ELEMENT HAVING THE PIEZOELECTRIC ELEMENT UNIT MANUFACTURED USING THE SAME, METHOD FOR MANUFACTURING THE ULTRASONIC ELEMENT, AND ACOUSTIC PRESSURE FOCUSING DEVICE HAVING THE ULTRASONIC ELEMENT
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United States of America
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Jan 13, 2022
app pub date -
Nov 4, 2019
filing date -
Nov 4, 2019
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Abstract
A method for designing a piezoelectric element unit, a ultrasonic element having the piezoelectric element manufactured using the method, a method for manufacturing the ultrasonic element, and an acoustic pressure focusing device having the ultrasonic element are provided. In the method for designing a piezoelectric element unit, a target position and a target distance are selected. A basic information of a piezoelectric element base material is inputted. Each of a plurality of grids is grouped into a unit grid group. A size of an output acoustic pressure outputted at each unit grid group is calculated. The unit grid group outputting the output acoustic pressure included in a range of a reference acoustic pressure among a plurality of the unit groups is decided. The plurality of ring patterns being concentric is determined based on a pattern shape information.
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