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    • 22. 发明申请
    • Pressure sensor
    • 压力传感器
    • US20050193826A1
    • 2005-09-08
    • US11070278
    • 2005-03-03
    • Teruo OdaYasuo Shibata
    • Teruo OdaYasuo Shibata
    • G01L7/08G01L19/14
    • G01L19/0645G01L23/18
    • A pressure sensor has a sensing unit and a pressure transmitting rod housed in a case, and a pressure receiving diaphragm. The case has a sensing unit housing portion and a pipe portion that extends from the sensing unit housing portion in a form of a pipe. The pipe portion includes an inner pipe and an outer pipe. The inner pipe is arranged inside the outer pipe and fixed to the outer pipe. The pipe portion has the first end located adjacent to the sensing unit and the second end away from the sensing unit. The inner pipe is projected from the outer pipe at the second end of the pipe portion. The pressure receiving diaphragm is welded to the inner pipe at the second end of the pipe portion such that it covers an opening of the inner pipe. The pressure transmitting rod is arranged inside the case such that its first end and second end are located on the sensing unit side and the pressure receiving diaphragm side, respectively. Pressure received by the pressure sensing diaphragm is transmitted to the sensing unit via the pressure transmitting rod.
    • 压力传感器具有容纳在壳体中的感测单元和压力传递杆以及受压隔膜。 壳体具有感测单元容纳部分和从感测单元壳体部分以管的形式延伸的管部分。 管部包括内管和外管。 内管布置在外管内并固定在外管上。 管部分具有位于感测单元附近的第一端,远离感测单元的第二端。 内管在管部的第二端从外管突出。 压力接收隔膜在管部分的第二端处焊接到内管,使得其覆盖内管的开口。 压力传递杆设置在壳体内,使得其第一端和第二端分别位于感测单元侧和受压膜侧。 由压力传感膜接受的压力通过压力传递杆传递到传感单元。