发明授权
US5898300A Travel sensor having approximately constant measured signal temperature
dependence across an entire measurement range
失效
行程传感器在整个测量范围内具有近似恒定的测量信号温度依赖性
- 专利标题： Travel sensor having approximately constant measured signal temperature dependence across an entire measurement range
- 专利标题（中）： 行程传感器在整个测量范围内具有近似恒定的测量信号温度依赖性
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申请号： US887210申请日： 1997-07-02
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公开(公告)号： US5898300A公开(公告)日： 1999-04-27
- 发明人: Klaus Heizmann , Norbert Schneider , Freidbert Roether
- 申请人： Klaus Heizmann , Norbert Schneider , Freidbert Roether
- 申请人地址： DEX Stuttgart
- 专利权人： Robert Bosch GmbH
- 当前专利权人： Robert Bosch GmbH
- 当前专利权人地址： DEX Stuttgart
- 优先权： DEX19500982 19950114
- 主分类号： G01B7/02
- IPC分类号： G01B7/02 ; G01D3/028 ; G01D5/20 ; G01B7/14
摘要：
A travel sensor (10) is proposed which has a insertion body (11) consisting of non-ferromagnetic material with good conductive properties. The insertion body (11) is submerged into a measuring coil (15) through which alternating current flows. In addition, the travel sensor is enveloped by a shielding sleeve (16) consisting of ferromagnetic material. Due to the alternating effect between the magnetic field of the coil (15), through which an alternating current flows, and the two materials, at designated frequencies of the alternating current and the respective volume of the insertion body (11) or the shielding sleeve (16), it is possible to compensate the effects of the temperature in such a way that at varying temperatures the measuring curves of the travel sensor (10) extend nearly parallel across the entire measuring range.
公开/授权文献
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