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    • 4. 发明授权
    • Fiber optic Fabry-Perot interferometer and associated methods
    • 光纤法布里 - 珀罗干涉仪及相关方法
    • US06886365B2
    • 2005-05-03
    • US10287192
    • 2002-11-04
    • Raymond C. RumpfSyed H. Murshid
    • Raymond C. RumpfSyed H. Murshid
    • G01J5/08G01B9/02G01J3/02G01J3/26G02B6/00G02B6/26C03B37/023
    • G01J3/02G01D5/264G01D5/266G01D5/268G01J3/0218G01J3/26G02B6/0001
    • The method for making the fiber optic Fabry-Perot sensor includes securing an optical fiber to a substrate, and forming at least one gap in the optical fiber after the optical fiber is secured to the substrate to define at least one pair of self-aligned opposing spaced apart optical fiber end faces for the Fabry-Perot sensor. Preferably, an adhesive directly secures the at least one pair of optical fiber portions to the substrate. The opposing spaced apart optical fiber end faces are self-aligned because the pair of optical fiber end portions are formed from a single fiber which has been directly secured to the substrate. Also, each of the self-aligned spaced apart optical fiber end faces may be substantially rounded due to an electrical discharge used to form the gap. This results in integral lenses being formed as the end faces of the fiber portions.
    • 用于制造光纤法布里 - 珀罗传感器的方法包括将光纤固定到基板上,并且在光纤被固定到基板上之后形成光纤中的至少一个间隙以限定至少一对自对准的对置 用于法布里 - 珀罗传感器的间隔开的光纤端面。 优选地,粘合剂将至少一对光纤部分直接固定到基底。 相对间隔开的光纤端面是自对准的,因为一对光纤端部由直接固定在基板上的单根光纤形成。 此外,由于用于形成间隙的放电,每个自对准隔开的光纤端面可以基本上是圆形的。 这导致整体透镜形成为纤维部分的端面。
    • 9. 发明授权
    • Variable sensitivity acoustic transducer
    • 可变灵敏度声换能器
    • US06542244B1
    • 2003-04-01
    • US09456739
    • 1999-12-07
    • Raymond C. RumpfCharles M. Newton
    • Raymond C. RumpfCharles M. Newton
    • G01B902
    • H04R23/008
    • The gauge length of an acoustic signal detector is dynamically variable by adjusting the location of an induced light reflection interface within a section of optical waveguide to which an acoustic stimulus is coupled. In an interferometer based architecture, a light beam is applied to each of an ‘acoustic signal detection’ optical waveguide and a ‘reference’ optical waveguide. The ‘acoustic signal detection’ waveguide is coupled to an acoustic energy transmission element. The acoustic input modifies the index of refraction of the optical waveguide and modulates the light passing through the waveguide. Since the index of refraction of the optical waveguide section is modified by the acoustic stimulus, the signal beam has a phase delay dependent upon the acoustic signal and the distance between one end of the signal waveguide section and an induced reflection interface. The ‘reference’ optical waveguide section also contains a reflection interface, the induced location of which is ganged with that of the signal optical waveguide section. The ‘signal’ path and ‘reference’ path beams reflected by their reflection interfaces are combined and applied to a photo-detector. The index of refraction of the material of the signal optical waveguide section is modified by the acoustic stimulus is the ‘signal path’. This ‘signal’ path light beam is combined out of phase with ‘reference’ light beam at the photo-detector.
    • 声学信号检测器的标距可以通过调节声学刺激耦合到的光波导的一部分内的感应光反射界面的位置来动态地变化。 在基于干涉仪的架构中,将光束施加到“声信号检测”光波导和“参考”光波导中的每一个。 “声信号检测”波导耦合到声能传输元件,声输入修改光波导的折射率并调制通过波导的光,由于光波导部分的折射率被修改为 声波刺激,信号光束具有取决于声信号的相位延迟和信号波导部分的一端与感应反射界面之间的距离,“参考”光波导部分还包含反射界面,诱导位置 其与信号光波导部分的结合。 由其反射界面反射的“信号”路径和“参考”路径光束被组合并应用到光检测器。 信号光波导部分的材料的折射率通过声学刺激来改变为“信号路径”,该“信号”路径光束在光检测器处与“参考”光束异相组合。