Apparatus for acoustic detection of particles in a flow using a fiber optic interferometer
Patent 7072044 Issued on July 4, 2006. Estimated Expiration Date: 
August 30, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 30, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3841144 3906780 Fiber optic hydrophone having rigid mandrel Apparatus for enhancing strain in intrinsic fiber optic sensors and packaging same for harsh environments Optical fiber distributed feedback laser Patent #: 5844927 InventorsAssigneeApplicationNo. 10363760 filed on 08/30/2001US Classes:356/477, Using fiber or waveguide interferometer356/450, BY LIGHT INTERFERENCE (E.G., INTERFEROMETER)356/502, Surface displacement due to acoustic wave propagation)73/61.75, Vibration73/64.53, By vibration73/28.01, Solid content of gas73/24.03, Solid content of gas73/705, Photoelectric385/13Including physical deformation or movement of waveguideExaminersPrimary: Lee, Hwa (Andrew)Assistant: Detschel, Marissa J Attorney, Agent or FirmForeign Patent References
International ClassG01B 9/02AbstractFiber optic particle detector for measurements in a fluid flow, comprising an optical fiber (2,3,12) being acoustically coupled to a mechanical element (11,13,14) adapted to be acoustically coupled to the flow, a fiber optic interferometer (54,56) and a light source (12,51,55) providing light in said optical fiber.Field of SearchSurface displacement due to acoustic wave propagation)Using fiber or waveguide interferometer By light interference detector (e.g., interferometer) BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) Vibration Solid content of gas By frequency or phase shift With light beam indicator Separator detail Impactor By vibration By vibration PARTICLE SIZE | |
