发明申请
US20100132431A1 METHOD FOR TESTING AND CALIBRATING A CAPACITIVE FLEX FUEL SENSOR
审中-公开
用于测试和校准电容式FLEX燃料传感器的方法
- 专利标题: METHOD FOR TESTING AND CALIBRATING A CAPACITIVE FLEX FUEL SENSOR
- 专利标题(中): 用于测试和校准电容式FLEX燃料传感器的方法
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申请号: US12326416申请日: 2008-12-02
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公开(公告)号: US20100132431A1公开(公告)日: 2010-06-03
- 发明人: Norberto Hernandez , Carlos A. Urquidi , Esau Aguinaga
- 申请人: Norberto Hernandez , Carlos A. Urquidi , Esau Aguinaga
- 主分类号: G01N33/22
- IPC分类号: G01N33/22
摘要:
A method for calibrating a flex fuel sensing apparatus having a fuel passage involves the use of a generally solid test blank having a size and shape configured to match that of the fuel passage. The test blank comprises material having a known, predetermined dielectric constant. The test blank is inserted into the fuel passage where the dielectric constant of the test blank is operative to simulate the presence of various gasoline and ethanol fuel blends. The test blank may also comprise a deformable/compressible solid such as rubber where the test blank is compressed during calibration to eliminate air gaps or the like, improving accuracy. The use of the solid test blank reduces complexity compared to using actual gasoline/ethanol blends for calibration as well as reduces post-calibration cleanup.
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