Invention Grant
US07937236B2 Method and a system for adaptive compensation of the temperature drift of a sensor 有权
传感器温度漂移的自适应补偿方法和系统

  • Patent Title: Method and a system for adaptive compensation of the temperature drift of a sensor
  • Patent Title (中): 传感器温度漂移的自适应补偿方法和系统
  • Application No.: US11794570
    Application Date: 2005-12-30
  • Publication No.: US07937236B2
    Publication Date: 2011-05-03
  • Inventor: Christer Wallin
  • Applicant: Christer Wallin
  • Applicant Address: SE Väterås
  • Assignee: ABB AB
  • Current Assignee: ABB AB
  • Current Assignee Address: SE Väterås
  • Agency: Venable LLP
  • Agent Eric J. Franklin
  • Priority: SE0403229 20041230
  • International Application: PCT/SE2005/002063 WO 20051230
  • International Announcement: WO2006/071195 WO 20060706
  • Main IPC: G06F19/00
  • IPC: G06F19/00 G01L25/00
Method and a system for adaptive compensation of the temperature drift of a sensor
Abstract:
A method for adaptive compensation of a temperature drift of a sensor, designed to measure the torque of a shaft or a drive train or the force in mechanical equipment during operation. A sensor signal is recurrently measured. An associated temperature is determined. An offset value is calculated as a function of temperature based on measured and stored data. The measured signal value is compensated using the calculated offset value. When the sensor is unloaded or nearly unloaded is detected. When the sensor is unloaded or nearly unloaded the signal sensor signal value and the associated temperature value are stored in a memory and a model of the sensor offset is updated. A system and computer program product for adaptive compensation of the temperature drift of such a sensor signal offset.
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