会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Loading probe for use in testing transducers
    • 加载用于测试传感器的探头
    • US5327771A
    • 1994-07-12
    • US904396
    • 1992-06-25
    • Robert Gentles
    • Robert Gentles
    • G01H3/00H01L41/22
    • G01H3/005
    • A loading probe for use in testing transducers includes an elongated body capable of simulating the normal acoustic impedance presented to a transducer to be tested by the medium in which the transducer is to operate. The main body of the loading probe has a tube made from a rigid material, and a rod having an elongated convergent portion extending into the interior of the tube so as to define a cavity which has a varying cross section. The cavity houses a core of material having a close match of acoustic impedance with the material of the tube and rod but a higher acoustic loss factor. The cavity is sealed. The active end of the loading probe carries a piezoelectric element having a planar form, and a protective end cap is bonded to the active end of the loading probe to enclose the piezoelectric element.
    • 用于测试换能器的加载探针包括细长体,其能够模拟通过传感器要操作的介质测试的换能器所呈现的正常声阻抗。 装载探针的主体具有由刚性材料制成的管,以及具有延伸到管内部的细长会聚部分的杆,以限定具有变化横截面的腔。 空腔容纳材料芯,其声阻抗与管和杆的材料紧密匹配,但是具有较高的声学损耗因子。 空腔密封。 负载探针的活动端承载具有平面形式的压电元件,并且保护端盖接合到负载探针的有效端以封闭压电元件。