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    • 4. 发明授权
    • Hermetic pressure transducer
    • 气压传感器
    • US06742395B1
    • 2004-06-01
    • US10324473
    • 2002-12-20
    • Marc Gerard Johan BorgersThomas R. MaherTimothy M. McBridePaulus Thomas Johannes Gennissen
    • Marc Gerard Johan BorgersThomas R. MaherTimothy M. McBridePaulus Thomas Johannes Gennissen
    • G01L912
    • G01L9/0051G01L19/0084G01L19/148
    • A port fitting (102) is formed with a closed, pedestal end forming a diaphragm (102a) on which a strain gauge sensor is mounted. A support member (106) is received on the pedestal end and is formed with a flat end wall (106a) having an aperture (106d) aligned with the sensor. A circuit assembly (108) is bonded to the flat end wall and the sensor wire bonded to the electronic circuit. A cover member (114) placed on the support member, is provided with a cavity for a metal shield member (118) fitted inside the cover member before assembly. The shield member is formed with spring members (118b) extending outside the perimeter of the cover member. The cover member is formed with circular cavities (114d) extending in an axial direction to provide seating for contact spring members (117), making electronic contact to the sensor electronics and protruding beyond the body of the cover member. The cover member is also fitted with a circular elastomer gasket member (116), providing an environmental seal. A connector member (120e), comprised of an integrally formed metal housing member (120a) and bent terminals (122a, 122b, 122c), is then placed over the cover member in such a manner that the terminals are aligned with the spring contact members, making electrical contact with the spring members. The bottom portion (120b) of the metal housing is welded to a support flange (104) of the port fitting while its top portion (120a) places a selected load on the elastomer seal member seated on the cover member of the transducer.
    • 端口配件(102)形成有封闭的基座端,形成安装有应变仪传感器的隔膜(102a)。 支撑构件(106)被容纳在基座端部并且形成有具有与传感器对准的孔(106d)的平坦端壁(106a)。 电路组件(108)结合到平端壁和传导线上,该导线接合到电子电路上。 放置在支撑构件上的盖构件(114)设置有用于在组装之前装配在盖构件内的金属屏蔽构件(118)的空腔。 屏蔽构件形成有延伸到盖构件的周边外侧的弹簧构件(118b)。 盖构件形成有在轴向方向上延伸的圆形空腔(114d),以提供接触弹簧构件(117)的座位,使电子接触传感器电子装置并突出超过盖构件的主体。 盖构件还装配有环形弹性体垫圈构件(116),提供环境密封。 然后将包括一体形成的金属外壳构件(120a)和弯曲端子(122a,122b,122c)的连接器构件(120e)以这样的方式放置在盖构件上,使得端子与弹簧接触构件 ,与弹簧构件电接触。 金属壳体的底部部分(120b)焊接到端口配件的支撑凸缘(104)上,同时其顶部部分(120a)将选定的负载放置在位于换能器盖板上的弹性体密封件上。
    • 5. 发明申请
    • Piezoresistive Pressure-Measuring Plug for a Combustion Engine
    • 用于燃烧发动机的压阻式压力测量塞
    • US20090320576A1
    • 2009-12-31
    • US12490118
    • 2009-06-23
    • Marc Gerard Johan BorgersCris Ruiz ZwolloRobert ZwijzePaulus Thomas Johannes GennissenTim TiekHuub TonemanSerge Groenhuijzen
    • Marc Gerard Johan BorgersCris Ruiz ZwolloRobert ZwijzePaulus Thomas Johannes GennissenTim TiekHuub TonemanSerge Groenhuijzen
    • G01M15/00H04R17/00
    • G01L23/18F23Q7/001F23Q2007/002Y10T29/42
    • A piezoresistive pressure-measuring plug (100) for a combustion engine for measuring a pressure is disclosed. The piezoresistive pressure-measuring plug (100) comprises: a plug body (106, 108, 110) for insertion into a cylinder of the combustion engine, a rod (102) that is arranged in the plug body (106, 108, 110), a sensing structure (104) comprising a piezoresistive element, that is arranged between the rod (102) and the plug body (106, 108, 110) in such a way that the sensing structure is acted upon, in use, by the pressure prevailing in the combustion chamber of the cylinder, whereby the rod (102) transmits the pressure in the combustion chamber of the cylinder to the sensing structure due to the pressure in the combustion chamber leading to an axial motion of the rod (102) relative to the plug body (106, 108, 110) so as to apply a force to the sensing structure (104) and a PWB (114) provided with sensor electronics for measuring and conditioning a resistance change. The sensing structure (104) is arranged in the plug body (106, 108, 110) and, in use is compressed in axial direction by the force applied to the sensing structure (104) and a piezoresistive element (206) mounted on the sensing structure (104) to provide a resistance change when the sensing structure (104) is compressed in axial direction. Furthermore, the PWB (114) is arranged in the plug body (106, 108, 110). In this way a pressure-measuring plug is obtained with improved bandwidth and reduced build-in height.
    • 公开了一种用于测量压力的内燃机的压阻式压力测量塞(100)。 压阻式压力测量插头(100)包括:用于插入到内燃机的气缸中的插塞体(106,108,110),布置在插塞主体(106,108,110)中的杆(102) ,包括压阻元件的感测结构(104),所述压阻元件布置在杆(102)和插塞本体(106,108,110)之间,使得感测结构在使用中通过压力 由于燃烧室内的压力导致杆(102)的轴向运动,杆(102)相对于气缸的燃烧室中的压力在气缸的燃烧室中存在,由此杆(102)将气缸的燃烧室中的压力传递到感测结构 所述插头体(106,108,110)以便向所述感测结构(104)施加力,以及设置有用于测量和调节电阻变化的传感器电子装置的PWB(114)。 感测结构(104)布置在插头主体(106,108,110)中,并且在使用中通过施加到感测结构(104)的力和轴向方向上的压力被压缩,所述压阻元件(206)安装在感测 结构(104),以在感测结构(104)沿轴向压缩时提供阻力变化。 此外,PWB(114)布置在插头主体(106,108,110)中。 以这种方式,获得带有改进的带宽和降低的内置高度的压力测量插头。