利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.007 秒)

    PRESSURE SENSOR
    2.
    发明公开
    PRESSURE SENSOR 有权
    压力传感器

    公开(公告)号：EP1943493A1

    公开(公告)日：2008-07-16

    申请号：EP05813670.6

    申请日：2005-10-10

    申请人： Gefran S.p.A.

    发明人： CIBINETTO, Lucio ,  FAGNANI, Giorgio ,  DRERA, Lionello

    IPC分类号： G01L19/04

    CPC分类号： G01L23/18 ,  G01L19/04 ,  G01L19/0681

    摘要： A pressure sensor (1) comprises a housing (2) defining an inner space (3) and a sensitive member (8) arranged within the inner space (3) and suitable to generate an indication signal for this deformation, a membrane (12) connected to the housing (2) and deformable depending on a pressure acting on the sensor measurement side, a tip (13) arranged between the membrane (12) and the sensitive member (8) and suitable to deform the sensitive member (8) depending on the deformation of the membrane (12), body (9, 10) supporting the sensitive member (8) such that the latter is clamped with a preset preload between the tip (13) and the support body (9, 10). The support body (9, 10) has a coefficient of heat expansion (αt, 2) different from that (αt, 1) of the housing and the tip (13) is rigidly connected to the membrane (12) and comprises a balance portion (14) having a coefficient of heat expansion (αt, 3) different from that (αt, 1) of the housing (2) and different from that (αt, 2) of the support body (9, 10).

    摘要翻译： 一种压力传感器（1）包括限定内部空间（3）的壳体（2）和布置在内部空间（3）内并适于产生用于该变形的指示信号的敏感构件（8），膜（12） （12）和敏感元件（8）之间并且适于使敏感元件（8）变形的尖端（13），所述尖端（13）连接到壳体（2）并且可根据作用在传感器测量侧上的压力而变形; 在膜（12）变形时，支撑敏感元件（8）的主体（9,10）使得后者在尖端（13）和支撑体（9,10）之间以预设的预载荷被夹紧。 支撑体（9,10）具有不同于外壳（αt，1）的热膨胀系数（αt，2），并且尖端（13）刚性地连接到膜（12）并且包括平衡部分 （14）具有与壳体（2）的热膨胀系数（αt，3）不同的热膨胀系数（αt，3），并且与支撑体（9,10）的热膨胀系数（αt，2）不同。