Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrasonic transducer and method for manufacturing same
A piezoelectric vibrator is provided with a housing (120), a piezoelectric vibrator (110), and wires (130, 140). The housing (120) has a bottomed cylindrical shape having a bottom portion and a side wall portion. The piezoelectric vibrator (110) has a piezoelectric ceramic containing Ti and Zr, and is affixed to the bottom on the inside of the case (120). The wires (130, 140) are connected to the piezoelectric vibrator (110) and are led out to the outside of the housing (120). The temperature at which the resonance frequency of the extended vibration mode of the piezoelectric ceramic in a state in which the piezoelectric ceramic is not attached to the bottom is minimum is within the range of-30 DEG C to 10 DEG C. The cross-sectional porosity in an arbitrary vertical cross-section of the piezoelectric ceramic is 1% or less.
具备壳体(120)、压电振子(110)以及布线(130、140)。壳体(120)是具有底部及侧壁部的有底筒状。压电振子(110)具有包括Ti及Zr的压电体陶瓷，在壳体(120)的内侧被粘贴于上述底部。布线(130、140)与压电振子(110)连接，被引出到壳体(120)的外侧。未粘贴于上述底部的状态下的压电体陶瓷的扩展振动模式的谐振频率最小的温度为‑30℃以上且10℃以下的范围内。压电体陶瓷的任意的纵截面中的截面空隙率为1％以下。
Ultrasonic transducer and method for manufacturing same
A piezoelectric vibrator is provided with a housing (120), a piezoelectric vibrator (110), and wires (130, 140). The housing (120) has a bottomed cylindrical shape having a bottom portion and a side wall portion. The piezoelectric vibrator (110) has a piezoelectric ceramic containing Ti and Zr, and is affixed to the bottom on the inside of the case (120). The wires (130, 140) are connected to the piezoelectric vibrator (110) and are led out to the outside of the housing (120). The temperature at which the resonance frequency of the extended vibration mode of the piezoelectric ceramic in a state in which the piezoelectric ceramic is not attached to the bottom is minimum is within the range of-30 DEG C to 10 DEG C. The cross-sectional porosity in an arbitrary vertical cross-section of the piezoelectric ceramic is 1% or less.
具备壳体(120)、压电振子(110)以及布线(130、140)。壳体(120)是具有底部及侧壁部的有底筒状。压电振子(110)具有包括Ti及Zr的压电体陶瓷，在壳体(120)的内侧被粘贴于上述底部。布线(130、140)与压电振子(110)连接，被引出到壳体(120)的外侧。未粘贴于上述底部的状态下的压电体陶瓷的扩展振动模式的谐振频率最小的温度为‑30℃以上且10℃以下的范围内。压电体陶瓷的任意的纵截面中的截面空隙率为1％以下。
Ultrasonic transducer and method for manufacturing same
超声波换能器及其制造方法
KORESAWA KENJI (Autor:in) / SUZUKI YUSUKE (Autor:in) / NOMURA JUNICHI (Autor:in) / MATSUSHITA TOMOAKI (Autor:in) / FUJITA AKIO (Autor:in) / FUJII KAZUHIKO (Autor:in)
05.07.2024
Patent
Elektronische Ressource
Chinesisch
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