发明授权
US08982334B2 Method of operating a SMI sensor and corresponding sensor device
有权
操作SMI传感器和相应的传感器装置的方法
- 专利标题： Method of operating a SMI sensor and corresponding sensor device
- 专利标题（中）： 操作SMI传感器和相应的传感器装置的方法
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申请号： US13390545申请日： 2010-08-10
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公开(公告)号： US08982334B2公开(公告)日： 2015-03-17
- 发明人: Alexander Marc Van Der Lee , Mark Carpaij , Holger Moench , Marcel Schemmann
- 申请人： Alexander Marc Van Der Lee , Mark Carpaij , Holger Moench , Marcel Schemmann
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips N.V.
- 当前专利权人： Koninklijke Philips N.V.
- 当前专利权人地址： NL Eindhoven
- 优先权： EP09167984 20090817
- 国际申请： PCT/IB2010/053601 WO 20100810
- 国际公布： WO2011/021129 WO 20110224
- 主分类号： G01C3/08
- IPC分类号： G01C3/08 ; G01S7/483 ; G01S17/58 ; G01S17/06
摘要：
The present invention refers to a method of operating a self-mixing interference sensor and a corresponding self-mixing interference sensor device. In the method the laser (1) of the device is controlled to periodically emit a laser pulse followed by an emission period of laser radiation having a lower amplitude. The pulse width of the laser pulse is selected such that the pulse after reflection at the object (3) re-enters the laser (1) during the emission period of laser radiation with lower amplitude. The corresponding SMI signal has an increased signal to noise ratio.
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