-
公开(公告)号：JP2011145680A
公开(公告)日：2011-07-28
申请号：JP2011014263
申请日：2011-01-26
Applicant: Zolo Technologies Inc , ゾロ テクノロジーズ,インコーポレイティド
Inventor： MASTERSON BERNARD PATRICK , HUELSON ERIC C , SMITH IAN S
Abstract: PROBLEM TO BE SOLVED: To provide an optical mode noise averaging device (300) that includes a multi-mode optical fiber (302), and a means (308) for averaging variations of signal level in an optical level of an optical signal. SOLUTION: The device averages the variations of the signal level induced by mode noise by periodically changing a refractive index of the multi-mode optical fiber (302) for a selected period or scrambling optical distribution in the multi-mode optical fiber (302), or by both of them. The refractive index of the multi mode optical fiber is periodically changed by periodically changing temperature of the multi-mode optical fiber (302). Alternatively, cyclically manipulation of the multi-mode optical fiber (302) enables the refractive index to be changed, or enables the optical distribution in the multi-mode optical fiber to be scrambled. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种包括多模光纤（302）的光模式噪声平均装置（300），以及用于平均光学水平的信号电平的变化的装置（308） 信号。 解决方案：器件通过在多模光纤中周期性地改变多模光纤（302）的折射率或选择的周期性或加扰光分布来平均模式噪声引起的信号电平的变化（ 302），或由他们两者。 通过周期性地改变多模光纤（302）的温度来周期性地改变多模光纤的折射率。 或者，循环地操作多模光纤（302）能够改变折射率，或使多模光纤中的光分布加扰。 版权所有（C）2011，JPO＆INPIT
-
公开(公告)号：ES2495719T3
公开(公告)日：2014-09-17
申请号：ES06850383
申请日：2006-11-06
Applicant: ZOLO TECHNOLOGIES INC
Inventor： SAPPEY ANDREW D , MASTERSON BERNARD PATRICK , HOFVANDER HENRIK
Abstract: Un método para medir una propiedad de combustión o propiedades de combustión dentro de una zona de combustión (12) de un motor de turbina de gas, la zona de combustión que se define entre una carcasa interior (16) y exterior (14), el método que comprende: a) transmitir un haz óptico a través de una primera fibra óptica (54) a un elemento de transmisión óptica (22) acoplada ópticamente a un puerto (24) en la carcasa exterior; b) transmitir el haz desde un elemento de transmisión óptica a través de la zona de combustión hacia una porción de la carcasa interior; caracterizado porque el método comprende además: c) recibir una porción del haz reflejado fuera de la porción de la carcasa interior con un elemento de recepción óptica (26) acoplado ópticamente a un puerto en la carcasa exterior; y d) transmitir la porción recibida del haz reflejado a través de una segunda fibra óptica (56) para interrelacionar la cantidad y la naturaleza del haz recibido con las propiedades de combustión dentro de la zona de combustión.
-
公开(公告)号：AU2010282589A2
公开(公告)日：2012-03-22
申请号：AU2010282589
申请日：2010-08-10
Applicant: ZOLO TECHNOLOGIES INC
Inventor： MASTERSON BERNARD PATRICK , HOWELL JAMES , HOFVANDER HENRIK , SAPPEY ANDREW D
IPC: F02C7/22
Abstract: An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.
-
公开(公告)号：AU2005236385A1
公开(公告)日：2005-11-03
申请号：AU2005236385
申请日：2005-02-02
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HUELSON ERIC C , MASTERSON BERNARD PATRICK , SMITH IAN S
Abstract: An optical mode noise averaging device (300) including a multimode optical fiber (302) and means (308) for averaging a modal noise induced signal level variation of light propagating within the multimode optical fiber (302). The device may average modal noise induced signal level variations by cyclically varying an index of refraction of the multimode optical fiber (302) over a select period of time, scrambling a light distribution within the multimode optical fiber (302), or both. The index of refraction of the multimode optical fiber may be cyclically varied by cyclically varying the temperature of the multimode optical fiber (302). Alternatively, the index for refraction may be varied or the light distribution within the multimode optical fiber may be scrambled by cyclically manipulating the multimode optical fiber (302).
-
公开(公告)号：CA2561711C
公开(公告)日：2012-12-18
申请号：CA2561711
申请日：2005-02-02
Applicant: ZOLO TECHNOLOGIES INC
Inventor： MASTERSON BERNARD PATRICK , HUELSON ERIC C , SMITH IAN S
Abstract: An optical mode noise averaging device (300) including a multimode optical fiber (302) and means (308) for averaging a modal noise induced signal level variation of light propagating within the multimode optical fiber (302). The device may average modal noise induced signal level variations by cyclically varying an index of refraction of the multimode optical fiber (302) over a select period of time, scrambling a light distribution within the multimode optical fiber (302), or both. The index of refraction of the multimode optical fiber may be cyclically varied by cyclically varying the temperature of the multimode optical fiber (302). Alternatively, the index for refraction may be varied or the light distribution within the multimode optical fiber may be scrambled by cyclically manipulating the multimode optical fiber (302).
-
Patent Agency Ranking
公开(公告)号：AU2010282589A1
公开(公告)日：2012-03-08
申请号：AU2010282589
申请日：2010-08-10
Applicant: ZOLO TECHNOLOGIES INC
Inventor： MASTERSON BERNARD PATRICK , HOWELL JAMES , HOFVANDER HENRIK , SAPPEY ANDREW D
IPC: F02C7/22
Abstract: An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.
-
公开(公告)号：CA2871072A1
公开(公告)日：2013-10-24
申请号：CA2871072
申请日：2013-03-15
Applicant: ZOLO TECHNOLOGIES INC
Inventor： HOWELL JIM , MASTERSON BERNARD PATRICK , HARRIS ROD , GILTNER DAVID , JOBSON ATILIO , ESTES MICHAEL JOHN , SAPPEY ANDREW D
Abstract: A method of monitoring combustion properties in an interior of a furnace is described. A beam of light is projected through a pitch optic including a pitch collimating lens residing outside the boiler interior. The pitch collimating lens projects the beam through a penetration into the boiler interior. The beam of light projected by the pitch collimating lens is reflected from at least one in-furnace retro-reflector, and received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The pitch optic and the catch optic may be embodied in the same pitch/catch optic. The pitch collimating lens may also be steered toward another of the at least one in-furnace retro-reflectors. Combustion properties may be calculated for each retro-reflector or based on retro-reflector zones within the furnace.
-
公开(公告)号：AU2010203674A2
公开(公告)日：2012-01-19
申请号：AU2010203674
申请日：2010-01-07
Applicant: ZOLO TECHNOLOGIES INC
Inventor： ESTES MICHAEL JOHN , SAPPEY ANDREW D , HOFVANDER HENRIK , MOLITORIS ALLEN , MASTERSON BERNARD PATRICK , HUANG PEI
Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.
-
公开(公告)号：CA2748793A1
公开(公告)日：2010-07-15
申请号：CA2748793
申请日：2010-01-07
Applicant: ZOLO TECHNOLOGIES INC
Inventor： ESTES MICHAEL JOHN , SAPPEY ANDREW D , HOFVANDER HENRIK , MOLITORIS ALLEN , MASTERSON BERNARD PATRICK , HUANG PEI
Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.
-
公开(公告)号：CA2561711A1
公开(公告)日：2005-11-03
申请号：CA2561711
申请日：2005-02-02
Applicant: ZOLO TECHNOLOGIES INC
Inventor： SMITH IAN S , HUELSON ERIC C , MASTERSON BERNARD PATRICK
Abstract: An optical mode noise averaging device (300) including a multimode optical fiber (302) and means (308) for averaging a modal noise induced signal level variation of light propagating within the multimode optical fiber (302). The device may average modal noise induced signal level variations by cyclically varying an index of refraction of the multimode optical fiber (302) over a select period of time, scrambling a light distribution within the multimode optical fiber (302), or both. The index of refraction of the multimode optic al fiber may be cyclically varied by cyclically varying the temperature of the multimode optical fiber (302). Alternatively, the index for refraction may b e varied or the light distribution within the multimode optical fiber may be scrambled by cyclically manipulating the multimode optical fiber (302).
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.023 seconds)
