WO2015175166A1 - Fiber optic sensing apparatus with an improved fiber-affixing device - Google Patents

Fiber optic sensing apparatus with an improved fiber-affixing device Download PDF

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Publication number
WO2015175166A1
WO2015175166A1 PCT/US2015/026746 US2015026746W WO2015175166A1 WO 2015175166 A1 WO2015175166 A1 WO 2015175166A1 US 2015026746 W US2015026746 W US 2015026746W WO 2015175166 A1 WO2015175166 A1 WO 2015175166A1
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WO
WIPO (PCT)
Prior art keywords
housing
sensing apparatus
optical fiber
fiber optic
optic sensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2015/026746
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French (fr)
Inventor
Evangelos V. Diatzikis
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Siemens Energy Inc
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Siemens Energy Inc
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Filing date
Publication date
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Publication of WO2015175166A1 publication Critical patent/WO2015175166A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Definitions

  • aspects of the present invention relate generally to a fiber optic sensing apparatus for sensing conditions in an electromotive machine, and, more particularly, to a fiber optic sensing apparatus with an improved fiber-affixing device.
  • Electromotive machines such as large electrical generators used in the field of power generation, include stator windings that, for example, can carry several thousand amperes of current.
  • the stator windings comprise a large number of conductors or stator bars that are pressed into slots in a stator core and end windings that can extend beyond the stator core.
  • Such a machine represents a very expensive and long-term investment.
  • a malfunction of the generator not only endangers the power equipment itself but may also result in substantially costly and burdensome service reduction due to the down time associated with a repair.
  • increasing use is being made of fiber optic technology for sensing conditions of the machine.
  • FIG. 1 is schematic representation of an electromotive machine, such as a power generator that may benefit from a fiber optic sensing apparatus embodying aspects of the present invention.
  • FIG. 2 is an isometric view illustrating a non-limiting embodiment of a fiber- affixing device for the fiber optic sensing apparatus.
  • FIG. 3 is an isometric view of a fiber optic sensing apparatus including a housing that accommodates a fiber optic sensor.
  • FIG. 4 is an isometric view of one non-limiting embodiment of a housing made up of a first housing member and a second housing member joined at mutually opposed edges including cutouts that in combination form an opening in the housing to fit the fiber-affixing device.
  • FIG. 5 is an isometric, exploded view illustrating example cutouts constructed in the first and second housing members.
  • FIG. 6 is a sectional view of a non-limiting embodiment where the fiber-affixing device comprises an H-shaped monolithic structure.
  • FIGs. 7 and 8 respectively illustrate a flow sequence for affixing a separate annular structure to the sleeve to form another non-limiting embodiment of the fiber- affixing device.
  • FIG. 1 is a schematic representation of an electromotive machine 10, such as a power generator that may benefit from a fiber optic sensing apparatus 12 embodying aspects of the present invention.
  • fiber optic sensing apparatus 12 may comprise an optical fiber vibration sensor mounted onto an end- winding 14 of electromotive machine 10 to monitor vibration of end-winding 14.
  • Non-limiting sensing conditions may further include temperature sensing, strain sensing, etc.
  • Non-limiting example components that may be monitored with a fiber optic sensing apparatus embodying aspects of the present invention may further include a lead box of the generator, main connection leads of the generator, etc.
  • FIG. 2 is an isometric view illustrating a non-limiting embodiment of a fiber- affixing device 15 for fiber optic sensing apparatus 12 that includes a fiber optic sensor 18 accommodated in a housing 20 (FIG. 3).
  • an optical fiber jacket 24 encases an optical fiber 19 that extends into the housing through an opening formed in the housing.
  • fiber optic sensing apparatus 12 comprises a protective end boot 26 including a sleeve 28 disposed in the opening in housing 20 to hold optical fiber 19 through the opening.
  • Sleeve 28 may be a cylindrical shaped structure interposed between mutually opposed bearing surfaces 30, 32 arranged to constrain axial movement of sleeve 28 with respect to an inner wall 34 and an outer wall 36 of housing 20 surrounding the opening formed in the housing.
  • Bearing surfaces 30, 32 may be conceptually analogized to provide mechanical anchoring functionality to sleeve 28 and the optical fiber 19 held in sleeve 28 with respect to inner wall 34 and outer wall 36 of housing 20. This is effective to affix optical fiber 19 within the opening and results in a substantially strong and robust connection thus greatly improving the robustness and survivability of the optical fiber sensor.
  • a layer of adhesive 60 (FIG. 5) to bond at least the mutually opposed bearing surfaces 30, 32 to the respective inner and outer walls of the housing.
  • a suitable elastomeric material as a filler material between the mutually opposed bearing surfaces 30, 32 and the respective inner and outer walls of the housing.
  • housing 20 comprises a first housing member 40 and a second housing member 42 joined at mutually opposed edges 44, 46.
  • housing members 40, 42 may be conceptually analogized to form a clam shell housing structure.
  • Housing members 40, 42 include at the mutually opposed edges 44, 46 corresponding cutouts 48, 50 (FIG. 5) that in combination form the opening in the housing where sleeve 28 is fitted.
  • mutually opposed bearing surfaces 30, 32 and sleeve 28 comprise a monolithic structure that may have an H-shaped structure 50 (FIG. 6) configured to straddle inner and outer surfaces of the housing surrounding the cutouts 48, 50 (FIG. 5) that in combination form the opening in the housing when the first and second housing members 40, 42 are joined at the mutually opposed edges. That is, when the first and second housing members 40, 42 are superimposed onto one another.
  • sleeve 28 of the monolithic structure may be initially mounted on the cutout of one of the first and second housing members, (e.g., cutout 50 at edge 46 of housing member 42) and, in this example, cutout 50
  • first and second housing members 40, 42 circumferentially surrounds a portion (e.g., approximately one-half) of sleeve 28.
  • the cutout of the other one of the first and second housing members e.g., cutout 48 at edge 44 of housing member 40
  • the remaining portion approximately the remaining half
  • the bearing surface e.g., surface 30
  • the bearing surface that faces the inner wall of the housing may be provided by a separate annular structure 62, such as a ring, affixable to the sleeve.
  • sleeve 28 is directly insertable through the opening in the housing, and the annular structure may be affixed to the sleeve by way of a threaded connection, schematically represented by threads 64.
  • annular structure 62 may be secured by way of techniques well- understood by those skilled in the art to prevent vibration-induced loosening, such as may include a locking fastener, or application of an adhesive such as Loctite brand adhesive, or a double nut locking fastener, etc.
  • fiber optic sensing apparatus 12 comprises a housing 20 enclosing an optical fiber sensor 18.
  • An optical fiber 19 extends into the housing through an opening formed in the housing.
  • a fiber-affixing device 15 is affixed to the optical fiber proximate the opening.
  • the fiber-affixing device comprises opposed bearing surfaces 30, 32 extending away from the optical fiber and disposed against opposed inner and outer surfaces (e.g., wall surfaces) of the housing surrounding the opening.
  • the fiber-affixing device is effective to affix the optical fiber within the opening.
  • the fiber-affixing device results in a substantially strong and robust connection thus greatly improving the robustness and survivability of the optical fiber sensor.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Transform (AREA)

Abstract

A fiber optic sensing apparatus that may be used to sense one or more conditions of an electromotive machine is provided. A housing (20) encloses an optical fiber sensor (18). An optical fiber (19) extends into the housing through an opening formed in the housing. A fiber-affixing device (15) may be affixed to the optical fiber proximate the opening. The fiber-affixing device includes opposed bearing surfaces (30, 32) extending away from the optical fiber and disposed against opposed inner and outer surfaces (34, 36) of the housing surrounding the opening. The fiber-affixing device is effective to affix the optical fiber within the opening, thereby substantially improving the robustness and survivability of the optical fiber sensor.

Description

FIBER OPTIC SENSING APPARATUS
WITH AN IMPROVED FIBER-AFFIXING DEVICE
FIELD OF THE INVENTION
Aspects of the present invention relate generally to a fiber optic sensing apparatus for sensing conditions in an electromotive machine, and, more particularly, to a fiber optic sensing apparatus with an improved fiber-affixing device.
BACKGROUND OF THE INVENTION
Electromotive machines, such as large electrical generators used in the field of power generation, include stator windings that, for example, can carry several thousand amperes of current. The stator windings comprise a large number of conductors or stator bars that are pressed into slots in a stator core and end windings that can extend beyond the stator core. Such a machine represents a very expensive and long-term investment. For example, a malfunction of the generator not only endangers the power equipment itself but may also result in substantially costly and burdensome service reduction due to the down time associated with a repair. To avoid such a condition, increasing use is being made of fiber optic technology for sensing conditions of the machine.
Due to the delicate nature of optica! fibers, it is desirable to provide appropriate protection for such optical fibers and the resulting assemblage of an fiber optic sensing apparatus. It is known, for example, to affix a connecting end of a protective jacket in an optical fiber sensor to a housing by way of bonding adhesives. However, this
implementation is prone to de-bonding of the connecting end with respect to the housing, which can eventually lead to breakage of the optical fiber sensor. Therefore, a cost-effective and reliable connection for such fiber optic sensing apparatus is desirable. Disclosed embodiments are believed to successfully address at least such needs. BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained in the following description in view of the drawings that show:
FIG. 1 is schematic representation of an electromotive machine, such as a power generator that may benefit from a fiber optic sensing apparatus embodying aspects of the present invention.
FIG. 2 is an isometric view illustrating a non-limiting embodiment of a fiber- affixing device for the fiber optic sensing apparatus.
FIG. 3 is an isometric view of a fiber optic sensing apparatus including a housing that accommodates a fiber optic sensor.
FIG. 4 is an isometric view of one non-limiting embodiment of a housing made up of a first housing member and a second housing member joined at mutually opposed edges including cutouts that in combination form an opening in the housing to fit the fiber-affixing device.
FIG. 5 is an isometric, exploded view illustrating example cutouts constructed in the first and second housing members.
FIG. 6 is a sectional view of a non-limiting embodiment where the fiber-affixing device comprises an H-shaped monolithic structure.
FIGs. 7 and 8 respectively illustrate a flow sequence for affixing a separate annular structure to the sleeve to form another non-limiting embodiment of the fiber- affixing device.
DETAILED DESCRIPTION OF THE INVENTION
In the following detailed description, various specific details are set forth in order to provide a thorough understanding of such embodiments. However, those skilled in the art will understand that embodiments of the present invention may be practiced without these specific details, that the present invention is not limited to the depicted embodiments, and that the present invention may be practiced in a variety of alternative embodiments. In other instances, methods, procedures, and components, which would be well-understood by one skilled in the art have not been described in detail to avoid unnecessary and burdensome explanation.
Furthermore, various operations may be described as multiple discrete steps performed in a manner that is helpful for understanding embodiments of the present invention. However, the order of description should not be construed as to imply that these operations need be performed in the order they are presented, nor that they are even order dependent unless otherwise so described. Moreover, repeated usage of the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Lastly, the terms "comprising", "including", "having", and the like, as used in the present application, are intended to be synonymous unless otherwise indicated.
FIG. 1 is a schematic representation of an electromotive machine 10, such as a power generator that may benefit from a fiber optic sensing apparatus 12 embodying aspects of the present invention. In one non-limiting application, fiber optic sensing apparatus 12 may comprise an optical fiber vibration sensor mounted onto an end- winding 14 of electromotive machine 10 to monitor vibration of end-winding 14. It will be appreciated that aspects of the present invention are not limited to any specific sensing condition of the electromotive machine or to monitoring any specific component of the electromotive machine. Non-limiting sensing conditions may further include temperature sensing, strain sensing, etc. Non-limiting example components that may be monitored with a fiber optic sensing apparatus embodying aspects of the present invention may further include a lead box of the generator, main connection leads of the generator, etc.
FIG. 2 is an isometric view illustrating a non-limiting embodiment of a fiber- affixing device 15 for fiber optic sensing apparatus 12 that includes a fiber optic sensor 18 accommodated in a housing 20 (FIG. 3). In one non-limiting embodiment an optical fiber jacket 24 encases an optical fiber 19 that extends into the housing through an opening formed in the housing.
In one non-limiting embodiment, fiber optic sensing apparatus 12 comprises a protective end boot 26 including a sleeve 28 disposed in the opening in housing 20 to hold optical fiber 19 through the opening. Sleeve 28 may be a cylindrical shaped structure interposed between mutually opposed bearing surfaces 30, 32 arranged to constrain axial movement of sleeve 28 with respect to an inner wall 34 and an outer wall 36 of housing 20 surrounding the opening formed in the housing. Bearing surfaces 30, 32 may be conceptually analogized to provide mechanical anchoring functionality to sleeve 28 and the optical fiber 19 held in sleeve 28 with respect to inner wall 34 and outer wall 36 of housing 20. This is effective to affix optical fiber 19 within the opening and results in a substantially strong and robust connection thus greatly improving the robustness and survivability of the optical fiber sensor.
One may additionally deposit a layer of adhesive 60 (FIG. 5) to bond at least the mutually opposed bearing surfaces 30, 32 to the respective inner and outer walls of the housing. Depending on the needs of a given application, one could alternatively insert a suitable elastomeric material as a filler material between the mutually opposed bearing surfaces 30, 32 and the respective inner and outer walls of the housing.
In one non-limiting embodiment, as may be appreciated in FIG. 4, housing 20 comprises a first housing member 40 and a second housing member 42 joined at mutually opposed edges 44, 46. In this embodiment, housing members 40, 42 may be conceptually analogized to form a clam shell housing structure. Housing members 40, 42 include at the mutually opposed edges 44, 46 corresponding cutouts 48, 50 (FIG. 5) that in combination form the opening in the housing where sleeve 28 is fitted.
In one non-limiting embodiment, mutually opposed bearing surfaces 30, 32 and sleeve 28 comprise a monolithic structure that may have an H-shaped structure 50 (FIG. 6) configured to straddle inner and outer surfaces of the housing surrounding the cutouts 48, 50 (FIG. 5) that in combination form the opening in the housing when the first and second housing members 40, 42 are joined at the mutually opposed edges. That is, when the first and second housing members 40, 42 are superimposed onto one another.
In one non-limiting embodiment, sleeve 28 of the monolithic structure may be initially mounted on the cutout of one of the first and second housing members, (e.g., cutout 50 at edge 46 of housing member 42) and, in this example, cutout 50
circumferentially surrounds a portion (e.g., approximately one-half) of sleeve 28. When the first and second housing members 40, 42 are joined to one another, the cutout of the other one of the first and second housing members (e.g., cutout 48 at edge 44 of housing member 40) is arranged to circumferentially surround the remaining portion (approximately the remaining half) of sleeve 28.
As may be appreciated in the flow sequence illustrated in FIGs. 7 and 8, in one non-limiting embodiment, the bearing surface (e.g., surface 30) that faces the inner wall of the housing may be provided by a separate annular structure 62, such as a ring, affixable to the sleeve. In this embodiment, sleeve 28 is directly insertable through the opening in the housing, and the annular structure may be affixed to the sleeve by way of a threaded connection, schematically represented by threads 64. It will be
appreciated that annular structure 62 may be secured by way of techniques well- understood by those skilled in the art to prevent vibration-induced loosening, such as may include a locking fastener, or application of an adhesive such as Loctite brand adhesive, or a double nut locking fastener, etc.
In one example embodiment, fiber optic sensing apparatus 12 comprises a housing 20 enclosing an optical fiber sensor 18. An optical fiber 19 extends into the housing through an opening formed in the housing. A fiber-affixing device 15 is affixed to the optical fiber proximate the opening. The fiber-affixing device comprises opposed bearing surfaces 30, 32 extending away from the optical fiber and disposed against opposed inner and outer surfaces (e.g., wall surfaces) of the housing surrounding the opening. In operation, the fiber-affixing device is effective to affix the optical fiber within the opening. The fiber-affixing device results in a substantially strong and robust connection thus greatly improving the robustness and survivability of the optical fiber sensor.
While various embodiments of the present invention have been shown and described herein, it will be obvious that such embodiments are provided by way of example only. Numerous variations, changes and substitutions may be made without departing from the invention herein. Accordingly, it is intended that the invention be limited only by the spirit and scope of the appended claims.

Claims

CLAIMS The invention claimed is:
1 . A fiber optic sensing apparatus comprising:
a housing to accommodate an optical fiber sensor; and
an optical fiber jacket comprising an end boot including a sleeve disposed in an opening formed in the housing to hold an optical fiber through the opening, the sleeve interposed between mutually opposed bearing surfaces arranged to constrain axial movement of the sleeve with respect to inner and outer walls of the housing.
2. The fiber optic sensing apparatus of claim 1 , wherein the housing comprises a first housing member and a second housing member joined at mutually opposed edges, the housing members including at the mutually opposed edges corresponding cutouts that in combination form the opening in the housing.
3. The fiber optic sensing apparatus of claim 2, wherein the mutually opposed bearing surfaces and the sleeve comprise a monolithic structure.
4. The fiber optic sensing apparatus of claim 3, wherein the monolithic structure comprises an H-shaped structure configured to straddle the corresponding cutouts that in combination form the opening in the housing when the first and second housing members are joined at the mutually opposed edges.
5. The fiber optic sensing apparatus of claim 1 , wherein the bearing surface that faces the inner wall of the housing comprises an annular structure affixable to the sleeve.
6. The fiber optic sensing apparatus of claim 5, wherein the sleeve is insertable through the opening in the housing, and wherein the annular structure is affixed to the sleeve by way of a threaded connection.
7. The fiber optic sensing apparatus of claim 4, further comprising a layer of adhesive to bond at least the mutually opposed bearing surfaces to the respective inner and outer walls of the housing.
8. The electromotive machine of claim 7, wherein the optical fiber sensor is arranged to sense a condition of the electromotive machine and is selected from the group consisting of a vibration sensor, a strain sensor and a temperature sensor.
9. An electromotive machine comprising the fiber optic sensing apparatus of claim 1 .
10. A fiber optic sensing apparatus comprising:
a housing to accommodate an optical fiber sensor, wherein the housing comprises a first housing member and a second housing member joined at mutually opposed edges, the housing members including at the mutually opposed edges corresponding cutouts that in combination form an opening in the housing; and
an optical fiber jacket comprising an end boot including a sleeve disposed in the opening in the housing to hold an optical fiber through the opening, the sleeve interposed between mutually opposed bearing surfaces arranged to constrain axial movement of the sleeve with respect to respective inner and outer walls of the housing.
1 1 . The fiber optic sensing apparatus of claim 10, wherein the mutually opposed bearing surfaces and the sleeve comprise a monolithic structure.
12. The fiber optic sensing apparatus of claim 1 1 , wherein the monolithic structure comprises an H-shaped structure configured to straddle the corresponding cutouts that in combination form the opening in the housing when the first and second housing members are joined at the mutually opposed edges.
13. The fiber optic sensing apparatus of claim 1 1 , wherein the sleeve of the monolithic structure is initially mounted on the cutout of one of the first and second housing members, which cutout circumferentially surrounds a portion of the sleeve, and, when the first and second housing members are joined to one another, the cutout of the other one of the first and second housing members is arranged to circumferentially surround a remaining portion of the sleeve.
14. The fiber optic sensing apparatus of claim 10, further comprising a layer of adhesive to bond at least the mutually opposed bearing surfaces to the respective inner and outer walls of the housing.
15. An electromotive machine comprising the fiber optic sensing apparatus of claim 10.
16. The electromotive machine of claim 15, wherein the optical fiber sensor is arranged to sense a condition of the electromotive machine and is selected from the group consisting of a vibration sensor, a strain sensor and a temperature sensor.
17. A fiber optic sensing apparatus comprising:
a housing enclosing an optical fiber sensor;
an optical fiber extending into the housing through an opening formed in the housing;
a fiber-affixing device affixed to the optical fiber proximate the opening, the fiber- affixing device comprising opposed bearing surfaces extending away from the optical fiber and disposed against opposed inner and outer surfaces of the housing
surrounding the opening, the fiber-affixing device effective to affix the optical fiber within the opening.
PCT/US2015/026746 2014-05-12 2015-04-21 Fiber optic sensing apparatus with an improved fiber-affixing device Ceased WO2015175166A1 (en)

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US14/275,043 US9551598B2 (en) 2014-05-12 2014-05-12 Fiber optic sensing apparatus with an improved fiber-affixing device
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9551598B2 (en) * 2014-05-12 2017-01-24 Siemens Energy, Inc. Fiber optic sensing apparatus with an improved fiber-affixing device
CN109323749B (en) * 2018-11-09 2022-03-08 威海北洋电气集团股份有限公司 Optical fiber storage protection device in optical fiber hydrophone array

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109458A (en) * 1990-10-30 1992-04-28 At&T Bell Laboratories Cable seal
JP2003021562A (en) * 2001-07-06 2003-01-24 Mitsubishi Cable Ind Ltd Laying method for optical-fiber temperature sensor and kit for forming optical fiber temperature sensor
US20050281510A1 (en) * 2004-06-17 2005-12-22 Vo Chanh C Fiber optic cable and plug assembly
WO2013134199A1 (en) * 2012-03-08 2013-09-12 Shell Oil Company Sensor station, system and method for sensing seismic parameters

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727088A (en) * 1954-03-23 1955-12-13 Gen Electric Strain relief for electric cords
FR2433189A1 (en) 1978-08-11 1980-03-07 Cit Alcatel DEVICE FOR SEALED CONNECTION OF AN OPTICAL FIBER CABLE TO AN UNDERWATER HOUSING
EP0081192B1 (en) * 1981-12-09 1986-04-09 Sumitomo Electric Industries Limited Device for spectral analysis of body tissue
US4948222A (en) 1988-12-05 1990-08-14 Aster Corporation Optical fiber unit assembly package
US5067783A (en) 1990-10-16 1991-11-26 At&T Bell Laboratories Optical fiber connector buildout system
DE4303737C2 (en) 1993-02-03 1995-12-07 Siemens Ag Receiving arrangement for a cable end piece
US5469745A (en) 1993-06-01 1995-11-28 Westinghouse Electric Corporation System for determining FOVM sensor beat frequency
USD360820S (en) * 1994-03-03 1995-08-01 Richard Haase Grommet
US5627343A (en) * 1994-08-03 1997-05-06 Xl Technologies, Inc. Re-enterable conduit sealing assembly
JP3212063B2 (en) 1995-03-08 2001-09-25 日本電信電話株式会社 Optical receptacle
DE19541139C1 (en) 1995-10-27 1997-05-15 Siemens Ag Receiving arrangement and method for producing a receiving arrangement for at least one coated optical waveguide
US5684718A (en) * 1996-02-12 1997-11-04 Westinghouse Electric Corporation Method and apparatus for monitoring the operation of an electric generator
US6175108B1 (en) * 1998-01-30 2001-01-16 Cidra Corporation Accelerometer featuring fiber optic bragg grating sensor for providing multiplexed multi-axis acceleration sensing
JP2004524785A (en) * 2000-08-16 2004-08-12 シーメンス　アクチエンゲゼルシヤフト Winding device having a winding body and a penetrated or inserted light guide
DE10219935A1 (en) 2002-05-03 2003-11-27 Krone Gmbh Device for an optical fiber connection
US7097486B2 (en) * 2005-02-03 2006-08-29 Cushcraft Corporation Low-cost weatherproof cable feedthrough
US7533572B2 (en) * 2006-08-15 2009-05-19 Siemens Energy, Inc. High bandwidth fiber optic vibration sensor
US7391952B1 (en) * 2006-08-31 2008-06-24 Corning Cable Systems Llc Pre-connectorized fiber optic cable network interconnection apparatus
US7740409B2 (en) * 2007-09-19 2010-06-22 Corning Cable Systems Llc Multi-port optical connection terminal
JP2010006138A (en) * 2008-06-24 2010-01-14 Yamaha Motor Co Ltd Cable insertion structure of outboard motor
WO2010012301A1 (en) * 2008-07-30 2010-02-04 Abb Research Ltd Generator circuit breaker with fiber-optic current sensor
US8076909B2 (en) * 2008-09-12 2011-12-13 Siemens Energy, Inc. Method and system for monitoring the condition of generator end windings
US8272792B2 (en) * 2008-09-30 2012-09-25 Corning Cable Systems Llc Retention bodies for fiber optic cable assemblies
DE102009008506B3 (en) * 2009-02-12 2010-08-26 Airbus Deutschland Gmbh Cable connection device, thus provided line feedthrough and use of the same
US8379225B2 (en) * 2010-03-31 2013-02-19 General Electric Company System for monitoring a relative displacement of components
US8520986B2 (en) * 2010-04-05 2013-08-27 George Franklin Dailey Use of fiber optic sensor techniques for monitoring and diagnostics of large AC generators
US8422008B2 (en) * 2010-09-29 2013-04-16 General Electric Company Electrical machine component monitoring system and method
US20120086443A1 (en) * 2010-10-08 2012-04-12 Bazzone Michael L Generator Operation Monitoring
US8820167B2 (en) * 2011-02-10 2014-09-02 Siemens Energy, Inc. Vibration sensor
US8645101B2 (en) * 2011-02-10 2014-02-04 Siemens Energy, Inc. Method for monitoring the condition of a vibration sensor
US8513543B1 (en) * 2012-02-21 2013-08-20 Asia Tai Technology Co., Ltd. Water-proofing cable connector
US9863813B2 (en) * 2012-04-13 2018-01-09 General Electric Company Flame sensor
US9435690B2 (en) * 2012-06-05 2016-09-06 General Electric Company Ultra-violet flame detector with high temperature remote sensing element
US9255835B2 (en) * 2012-08-22 2016-02-09 Siemens Energy, Inc. System for remote vibration detection on combustor basket and transition in gas turbines
US9188463B2 (en) * 2013-02-05 2015-11-17 General Electric Company Hermetic electrically shielded connector
US8770024B1 (en) * 2013-07-05 2014-07-08 Vibrosound Ltd. Fiber optic accelerometer
US9720198B2 (en) * 2013-07-23 2017-08-01 Panduit Corp. Strain relief for armored cable
US9244042B2 (en) * 2013-07-31 2016-01-26 General Electric Company Vibration condition monitoring system and methods
US9551598B2 (en) * 2014-05-12 2017-01-24 Siemens Energy, Inc. Fiber optic sensing apparatus with an improved fiber-affixing device
WO2015200389A1 (en) * 2014-06-26 2015-12-30 Commscope Technologies Llc Weatherized connector boot and connector cover therefore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109458A (en) * 1990-10-30 1992-04-28 At&T Bell Laboratories Cable seal
JP2003021562A (en) * 2001-07-06 2003-01-24 Mitsubishi Cable Ind Ltd Laying method for optical-fiber temperature sensor and kit for forming optical fiber temperature sensor
US20050281510A1 (en) * 2004-06-17 2005-12-22 Vo Chanh C Fiber optic cable and plug assembly
WO2013134199A1 (en) * 2012-03-08 2013-09-12 Shell Oil Company Sensor station, system and method for sensing seismic parameters

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