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公开(公告)号：US20080192230A1
公开(公告)日：2008-08-14
申请号：US11886129
申请日：2006-03-09
CPC分类号： A61B5/037 , G01D5/35303 , G01L1/246 , G02B6/124 , G02B7/008
摘要： The present invention provides an apparatus for pressure sensing. The apparatus comprises a light guide, a Bragg grating incorporated into the light guide and a moveable wall portion. The moveable wall portion has opposite first and second sides and is being positioned so that a change in pressure at one of the sides relative to a pressure at the other side will move the moveable wall portion. The moveable wall portion is coupled to the Bragg grating so that the movement of the moveable wall portion causes a force on a side of the Bragg grating. The force has a component that is transversal to the Bragg grating and effects a change in strain of the Bragg grating and thereby a change in an optical period of the Bragg grating.
摘要翻译： 本发明提供一种用于压力感测的装置。 该装置包括光导，并入光导中的布拉格光栅和可移动的壁部分。 可移动壁部分具有相对的第一和第二侧面并且被定位成使得一侧的压力相对于另一侧的压力的变化将移动可移动的壁部分。 可移动壁部分耦合到布拉格光栅，使得可移动壁部分的运动引起布拉格光栅侧面的力。 该力具有横向于布拉格光栅的分量并且实现布拉格光栅的应变变化，从而改变了布拉格光栅的光周期。
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公开(公告)号：US08031988B2
公开(公告)日：2011-10-04
申请号：US11886129
申请日：2006-03-09
CPC分类号： A61B5/037 , G01D5/35303 , G01L1/246 , G02B6/124 , G02B7/008
摘要： The present invention provides an apparatus for pressure sensing. The apparatus comprises a light guide, a Bragg grating incorporated into the light guide and a moveable wall portion. The moveable wall portion has opposite first and second sides and is being positioned so that a change in pressure at one of the sides relative to a pressure at the other side will move the moveable wall portion. The moveable wall portion is coupled to the Bragg grating so that the movement of the moveable wall portion causes a force on a side of the Bragg grating. The force has a component that is transversal to the Bragg grating and effects a change in strain of the Bragg grating and thereby a change in an optical period of the Bragg grating.
摘要翻译： 本发明提供一种用于压力感测的装置。 该装置包括光导，并入光导中的布拉格光栅和可移动的壁部分。 可移动壁部分具有相对的第一和第二侧面并且被定位成使得一侧的压力相对于另一侧的压力的变化将移动可移动的壁部分。 可移动壁部分耦合到布拉格光栅，使得可移动壁部分的运动引起布拉格光栅侧面的力。 该力具有横向于布拉格光栅的分量并且实现布拉格光栅的应变变化，从而改变了布拉格光栅的光周期。
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公开(公告)号：US20080281209A1
公开(公告)日：2008-11-13
申请号：US11886131
申请日：2006-03-09
CPC分类号： G01L1/246 , A61B5/0215 , G01D5/35303 , G02B6/2932 , G02B6/29322 , G02B7/008
摘要： The present invention provides an optical device which comprises a light guide incorporating a Bragg grating. The apparatus also comprises a moveable wall portion which is coupled to the Bragg grating so that a movement of the wall portion causes a force that effects a change in strain of the Bragg grating and thereby effects a change in an optical period of the Bragg grating. A temperature related change in the optical period of the Bragg grating is reduced by a temperature related change in the force on the Bragg grating by the moveable wall portion.
摘要翻译： 本发明提供了一种光学装置，其包括结合了布拉格光栅的导光体。 该装置还包括可移动的壁部分，其耦合到布拉格光栅，使得壁部分的运动引起影响布拉格光栅的应变变化的力，从而影响布拉格光栅的光周期的变化。 布拉格光栅的光周期的温度相关变化由于可移动壁部分在布拉格光栅上的力的相关变化而降低。
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公开(公告)号：US08503834B2
公开(公告)日：2013-08-06
申请号：US11886099
申请日：2006-03-09
CPC分类号： G01L1/246 , G01D5/35316 , G01L1/247 , G01L11/025 , G02B6/022
摘要： The present invention provides an apparatus for distributed pressure sensing. The apparatus comprises a series of Bragg gratings, a light guide incorporating the series of Bragg gratings and a plurality of moveable wall portions. The moveable wall portions are coupled to respective Bragg gratings so that the movement of one of the moveable wall portion causes a force on the respective Bragg grating resulting in a change in strain of the respective Bragg grating. The apparatus also comprises at least one rigid member that is attached at attachment regions between which a sensing region of at least one Bragg grating is defined. The rigid member is arranged so that a strain in the sensing region is not directly influenced by a change in strain of the light guide outside the sensing region.
摘要翻译： 本发明提供一种用于分布式压力感测的装置。 该装置包括一系列布拉格光栅，包含一系列布拉格光栅的光导和多个可移动壁部分。 可移动壁部分耦合到相应的布拉格光栅，使得可移动壁部分中的一个的移动导致相应布拉格光栅上的力导致各个布拉格光栅的应变变化。 该装置还包括至少一个刚性构件，该刚性构件附接在其上限定至少一个布拉格光栅的感测区域的附接区域处。 刚性构件布置成使得感测区域中的应变不直接受到感测区域外的光导的应变变化的影响。
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