发明名称 |
Apparatus for pressure sensing |
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.
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申请公布号 |
US8031988(B2) |
申请公布日期 |
2011.10.04 |
申请号 |
US20060886129 |
申请日期 |
2006.03.09 |
申请人 |
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION |
发明人 |
ARKWRIGHT JOHN WILLIAM;DOE SIMON NICHOLAS;TYAGI VINAY KUMAR;PRESTON EDWARD WILLIAM |
分类号 |
G02F1/295;G01J1/04;G01L1/24 |
主分类号 |
G02F1/295 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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