发明授权
- 专利标题： Instrument and method for measuring three-dimensional motion
- 专利标题（中）： 用于测量三维运动的仪器和方法
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申请号： US11547050申请日： 2005-03-31
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公开(公告)号： US07402996B2公开(公告)日： 2008-07-22
- 发明人: Kenichi Arai , Shin Yabukami , Hiroyasu Kanetaka
- 申请人： Kenichi Arai , Shin Yabukami , Hiroyasu Kanetaka
- 申请人地址： JP Saitama
- 专利权人： Japan Science and Technology Agency
- 当前专利权人： Japan Science and Technology Agency
- 当前专利权人地址： JP Saitama
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2004-106789 20040331
- 国际申请： PCT/JP2005/006275 WO 20050331
- 国际公布： WO2005/094677 WO 20051013
- 主分类号： G01B7/14
- IPC分类号： G01B7/14 ; G01B7/00 ; G01R33/00
摘要：
An instrument (10) for measuring three-dimensional motion in a living body comprises a plurality of magnetism generators (12i) fixed to one of at least two objects (44, 46) moving relatively in the living body, a plurality of magnetic field sensors (14j) fixed to the other object in order to perform noncontact detection of the magnetic field of each magnetism generator (12i), and a signal processing means (26) for calculating relative position and direction between each magnetism generator (12i) and each magnetic field sensor (14j) according to a magnetic field detected by each magnetic field sensor (14j). The number of magnetism generators (12i) and magnetic field sensors (14j) is at least five, respectively.
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