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CN104075774A 全数字车载液位传感器 无效 - 撤回

  • 专利标题： 全数字车载液位传感器
  • 专利标题（英）： Full-digital vehicle-mounted liquid level sensor
  • 申请号： CN201310104525.5
    申请日： 2013-03-25
  • 公开(公告)号： CN104075774A
    公开(公告)日： 2014-10-01
  • 发明人: 周晓东 , 李清水 , 陈晔
  • 申请人： 周晓东 , 李清水 , 陈晔
  • 申请人地址： 浙江省杭州市拱墅区德胜新村南3幢2单元306室
  • 专利权人： 周晓东,李清水,陈晔
  • 当前专利权人： 周晓东,李清水,陈晔
  • 当前专利权人地址： 浙江省杭州市拱墅区德胜新村南3幢2单元306室
  • 主分类号： G01F23/26
  • IPC分类号： G01F23/26
全数字车载液位传感器
摘要：
本发明涉及一种全数字车载液位传感器，具体涉及一种全数字化电容式汽车车载液位传感器，具体包括绝缘管和设置在绝缘管上方的变送器，所述绝缘管内设置至少两个电极，各个电极沿绝缘管轴向依次分布，各个电极之间相互隔离，所述绝缘管外侧设置有金属管，金属管上部设有导气孔，下部设有导液孔。本发明在绝缘管内设置至少两个电极，基于多电极的电容技术，可以有效提高汽车液位传感器对于不同介电常数油品的测量，同时提高可靠性，可直接输出多种数字信号，便于实现数字通讯。
摘要（英）：

The invention relates to a full-digital vehicle-mounted liquid level sensor, in particular to a full-digital capacitance type vehicle-mounted liquid level sensor for an automobile. The liquid level sensor specifically comprises an insulating tube and a transmitter arranged above the insulating tube. At least two electrodes are arranged in the insulating tube, sequentially distributed in the axial direction of the insulating tube, and mutually isolated. A metal tube is arranged outside the insulating tube. The upper portion of the metal tube is provided with a gas guide hole, and the lower portion of the metal tube is provided with a liquid guide hole. According to the liquid level sensor, the two electrodes are arranged in the insulating tube, based on the multi-electrode capacitance technology, the capacity of the liquid level sensor of the automobile for measuring different dielectric constant oil products can be effectively improved, the reliability is improved at the same time, a plurality of kinds of digital signals can be directly output, and therefore digital communication can be achieved conveniently.

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