Invention Grant
US08096196B2 Load cell 有权
称重传感器

  • Patent Title: Load cell
  • Patent Title (中): 称重传感器
  • Application No.: US12808089
    Application Date: 2008-12-12
  • Publication No.: US08096196B2
    Publication Date: 2012-01-17
  • Inventor: Nils Aage Juul Eilersen
  • Applicant: Nils Aage Juul Eilersen
  • Applicant Address: DE München
  • Assignee: Siemens AG
  • Current Assignee: Siemens AG
  • Current Assignee Address: DE München
  • Agent Cozen O'Connor
  • Priority: DK200701787 20071214
  • International Application: PCT/EP2008/067455 WO 20081212
  • International Announcement: WO2009/077463 WO 20090625
  • Main IPC: G01D7/00
  • IPC: G01D7/00 G01L1/04 G01L1/00
Load cell
Abstract:
A load cell includes a cylindrical ring with one end closed by a membrane configured to receive a load or force to be measured. A sensor carrier plate is arranged in a cavity formed by the ring and the membrane. The sensor carrier plate is coupled to the membrane to undergo a displacement upon deflection of the membrane. The sensor carrier plate has an inner and an outer portion and carries in the outer portion at least one sensor adapted for sensing the displacement and generating a signal based on the load or force applied to the membrane. The sensor carrier plate is movably coupled to the membrane at a location between the inner portion and the outer portion. At least one further sensor is arranged in the inner portion generating a signal changing with opposite sign with respect to the signal of the sensor.
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