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    • 8. 发明专利
    • Transducer and measurement device
    • 传感器和测量装置
    • JP2012075555A
    • 2012-04-19
    • JP2010221968
    • 2010-09-30
    • Advantest Corp株式会社アドバンテスト
    • IDA YASUICHIRO
    • A61B8/00G01N29/00G01N29/24
    • G03B42/06A61B8/4483G01N29/06G01N29/2437G01N29/32H04R17/00H04R17/02
    • PROBLEM TO BE SOLVED: To reduce crosstalk or the like between signal wires in a transducer.SOLUTION: The transducer which converts sound waves to electrical signals includes a piezoelectric unit having a plurality of piezoelectric elements each of which converts the sound waves detected on a detection surface to the electrical signals, and a multilayer substrate to which the piezoelectric unit is fixed. The multilayer substrate has the plurality of signal wires which are provided correspondingly to the plurality of piezoelectric elements and transmit the electrical signals output by the corresponding piezoelectric elements, and a shield unit for electromagnetically shielding at least a portion of the plurality of signal wires. In the piezoelectric unit, the surface of the multilayer substrate to which the plurality of piezoelectric elements are fixed and the detection surfaces of the plurality of piezoelectric elements are fixed to the multilayer substrate so as to have an inclination.
    • 要解决的问题:为了减少换能器中的信号线之间的串扰等。 解决方案:将声波转换为电信号的传感器包括具有多个压电元件的压电单元,每个压电元件将检测表面上检测到的声波转换为电信号;以及多层基板,压电单元 是固定的 所述多层基板具有与所述多个压电元件对应地设置的多条信号线,并传输由相应的压电元件输出的电信号,以及用于电磁屏蔽所述多条信号线的至少一部分的屏蔽单元。 在压电单元中,将多个压电元件固定的多层基板的表面和多个压电元件的检测表面固定在多层基板上以具有倾斜度。 版权所有(C)2012,JPO&INPIT