基本信息:
- 专利标题: MAGNETIC SENSOR FOR INPUT DEVICES
- 专利标题(中):用于输入设备的磁性传感器
- 申请号:PCT/IB2005053060 申请日:2005-09-19
- 公开(公告)号:WO2006035342A8 公开(公告)日:2006-07-20
- 发明人: VAN ZON HANS , RUIGROK JAAP , VAN DER HOEVEN JAN C
- 申请人: KONINKL PHILIPS ELECTRONICS NV , VAN ZON HANS , RUIGROK JAAP , VAN DER HOEVEN JAN C
- 专利权人: KONINKL PHILIPS ELECTRONICS NV,VAN ZON HANS,RUIGROK JAAP,VAN DER HOEVEN JAN C
- 当前专利权人: KONINKL PHILIPS ELECTRONICS NV,VAN ZON HANS,RUIGROK JAAP,VAN DER HOEVEN JAN C
- 优先权: EP04104681 2004-09-27; EP04105256 2004-10-22; EP04106743 2004-12-20
- 主分类号: G01B7/00
- IPC分类号: G01B7/00 ; G01D5/12 ; G01L9/00 ; G01R33/09 ; G05G9/047 ; G06F3/0338 ; G06K11/00 ; G11B5/39 ; G11B9/00 ; H01F10/32 ; H01L43/08
摘要:
A magnetic sensor has a magnet (30) and a magneto-resistive element (20), arranged on a substrate such that magnetic field lines through the magneto-resistive element are substantially parallel to a plane of the substrate. Movement of a movable magnetically permeable element (40) near the substrate is detected as it alters the number of field lines through the element. It can be more sensitive than devices arranged with perpendicular field lines, and can be easier to manufacture and integrate. Applications include analog pointers, pressure sensors and microphones. It can use magnets placed either side of the element to detect changes in size of a gap above the element. As the gap closes, less of the parallel oriented field passes through the magneto resistive element.
摘要(中):
磁传感器具有布置在基板上的磁体(30)和磁阻元件(20),使得穿过磁阻元件的磁场线基本平行于基板的平面。 检测靠近衬底的可移动的导磁元件(40)的移动,因为它改变穿过元件的场线的数量。 它可以比采用垂直场线排列的器件更敏感,并且可以更容易地制造和集成。 应用包括模拟指针,压力传感器和麦克风。 它可以使用位于元件两侧的磁铁来检测元件上方间隙尺寸的变化。 当间隙闭合时,较少的平行取向的场通过磁阻元件。
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01B | 长度、厚度或类似线性尺寸的计量;角度的计量;面积的计量;不规则的表面或轮廓的计量 |
------G01B7/00 | 以采用电或磁的方法为特征的计量设备 |