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超声换能器由支撑体、高介电常数和高声阻抗材料的压电层、第一阻抗匹配层和第二阻抗匹配层组成。第一匹配层为硅。
The ultrasonic transducer consists of a support body, a piezoelectric layer of high dielectric constant and high acoustic impedance material, a first impedance matching layer and a second impedance matching layer. The first matching layer is silicon.