USRE35020E - Fiber optic load sensing device - Google Patents
Fiber optic load sensing device Download PDFInfo
- Publication number
- USRE35020E USRE35020E US08/138,709 US13870993A USRE35020E US RE35020 E USRE35020 E US RE35020E US 13870993 A US13870993 A US 13870993A US RE35020 E USRE35020 E US RE35020E
- Authority
- US
- United States
- Prior art keywords
- envelope
- load
- optical fiber
- optic cable
- fiber optic
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 97
- 239000013307 optical fiber Substances 0.000 claims abstract description 77
- 238000005452 bending Methods 0.000 claims abstract description 23
- 230000004044 response Effects 0.000 claims abstract description 13
- 229920001821 foam rubber Polymers 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000004075 alteration Effects 0.000 claims 8
- 239000013536 elastomeric material Substances 0.000 claims 5
- 230000014759 maintenance of location Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000004378 air conditioning Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003938 response to stress Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- 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
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/35374—Particular layout of the fiber
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Claims (24)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/138,709 USRE35020E (en) | 1990-04-10 | 1993-10-15 | Fiber optic load sensing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/508,139 US5056884A (en) | 1990-04-10 | 1990-04-10 | Fiber optic load sensing device |
US08/138,709 USRE35020E (en) | 1990-04-10 | 1993-10-15 | Fiber optic load sensing device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/508,139 Reissue US5056884A (en) | 1990-04-10 | 1990-04-10 | Fiber optic load sensing device |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE35020E true USRE35020E (en) | 1995-08-15 |
Family
ID=24021560
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/508,139 Ceased US5056884A (en) | 1990-04-10 | 1990-04-10 | Fiber optic load sensing device |
US08/138,709 Expired - Lifetime USRE35020E (en) | 1990-04-10 | 1993-10-15 | Fiber optic load sensing device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/508,139 Ceased US5056884A (en) | 1990-04-10 | 1990-04-10 | Fiber optic load sensing device |
Country Status (3)
Country | Link |
---|---|
US (2) | US5056884A (en) |
CA (1) | CA2079869C (en) |
WO (1) | WO1991015788A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5970199A (en) | 1996-12-11 | 1999-10-19 | Act Communications, Inc. | Frame for supporting fiber optic cable splices |
US20020075545A1 (en) * | 1998-12-22 | 2002-06-20 | Harrison Daniel David | Optcal high speed communications for a computed tomography x-ray machine |
US6625363B2 (en) * | 2001-06-06 | 2003-09-23 | Nufern | Cladding-pumped optical fiber |
US6687445B2 (en) | 2001-06-25 | 2004-02-03 | Nufern | Double-clad optical fiber for lasers and amplifiers |
US20040156606A1 (en) * | 2001-03-02 | 2004-08-12 | Hong Po | Fiber for enhanced energy absorption |
US6779364B2 (en) | 2000-10-23 | 2004-08-24 | Nufern | Cladding-pumped optical fiber and methods for fabricating |
US6972687B1 (en) * | 2003-07-14 | 2005-12-06 | Robert A Marshall | System and method for detecting a structure failure |
US20060097140A1 (en) * | 2003-05-03 | 2006-05-11 | Browning Thomas E Jr | Apparatus and method for a computerized fiber optic security system |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5056884A (en) * | 1990-04-10 | 1991-10-15 | Automatic Toll Systems, Inc. | Fiber optic load sensing device |
US5193129A (en) * | 1991-09-27 | 1993-03-09 | Rockwell International Corporation | Pressure sensor utilizing microbending of a fiber optic cable woven through a ladder shaped structure |
IL99773A (en) * | 1991-10-17 | 1995-11-27 | Israel State | Pressure sensor |
DE4137582A1 (en) * | 1991-11-15 | 1993-05-19 | Sel Alcatel Ag | Pressure effect detector for monitoring surface of defined shape and size - has optical waveguides with light transmission affected by pressure evaluated by opto-electronic circuit w.r.t. duration of signals |
FR2685081B1 (en) * | 1991-12-11 | 1994-02-04 | Thomson Csf | STRUCTURE WITH INTRINSICALLY DAMAGED CONTROL, MANUFACTURING METHOD AND METHOD OF USE. |
FR2689234B1 (en) * | 1992-03-26 | 1994-07-01 | Opto Ind | IMPROVED FIBER OPTIC PRESSURE SENSOR. |
US5222165A (en) * | 1992-05-29 | 1993-06-22 | Bohlinger J Jerry | Optical fiber elastomeric switch device |
US5250769A (en) * | 1992-06-23 | 1993-10-05 | Moore Curtis W | Roadway treadle switch assembly |
US5373128A (en) * | 1993-07-29 | 1994-12-13 | The Revenue Markets, Inc. | Wheel sensing treadle matrix switch assembly for roadways |
WO1995020798A1 (en) * | 1994-01-31 | 1995-08-03 | Psc Inc. | Handheld bar code scanning device having a manually operated optical trigger switch |
GB9409553D0 (en) * | 1994-04-28 | 1994-06-29 | British Aerospace | Crack detection system |
US5589937A (en) * | 1994-10-31 | 1996-12-31 | The United States Of America As Represented By The Secretary Of The Navy | Fiber optic self-multiplexing amplified ring transducer and force transfer sensor with pressure compensation |
US5529267A (en) * | 1995-07-21 | 1996-06-25 | Union Switch & Signal Inc. | Railway structure hazard predictor |
US5913245A (en) * | 1997-07-07 | 1999-06-15 | Grossman; Barry G. | Flexible optical fiber sensor tapes, systems and methods |
US6463187B1 (en) | 1998-08-24 | 2002-10-08 | Empirical Technologies Corporation | Variable coupler fiberoptic sensor and sensing apparatus using the sensor |
US6723054B1 (en) * | 1998-08-24 | 2004-04-20 | Empirical Technologies Corporation | Apparatus and method for measuring pulse transit time |
US6907148B2 (en) | 1998-08-24 | 2005-06-14 | Empirical Technologies Corporation | Sensing apparatus employing variable coupler fiberoptic sensor |
US6687424B1 (en) | 1998-08-24 | 2004-02-03 | Empirical Technologies Corporation | Sensing pad assembly employing variable coupler fiberoptic sensor |
GB0103665D0 (en) * | 2001-02-15 | 2001-03-28 | Secr Defence | Road traffic monitoring system |
GB0103666D0 (en) * | 2001-02-15 | 2001-03-28 | Secr Defence | Road traffic monitoring system |
US6621948B1 (en) | 2002-06-04 | 2003-09-16 | Raytheon Company | Apparatus and method for differential output optical fiber displacement sensing |
US7195033B2 (en) * | 2003-02-24 | 2007-03-27 | Weatherford/Lamb, Inc. | Method and system for determining and controlling position of valve |
US7268699B2 (en) * | 2004-03-06 | 2007-09-11 | Fibera, Inc. | Highway-rail grade crossing hazard mitigation |
US7245217B2 (en) * | 2004-03-06 | 2007-07-17 | Fibera, Inc. | Hazard mitigation for railway track intrusions at train station platforms |
US20060186276A1 (en) * | 2005-02-18 | 2006-08-24 | Fibera, Inc. | System for grade crossing accident mitigation |
US20070031084A1 (en) * | 2005-06-20 | 2007-02-08 | Fibera, Inc. | Trafic monitoring system |
FR2922352B1 (en) * | 2007-10-15 | 2009-11-20 | Ecole Superieure D Electroniqu | DEVICE FOR DETECTING THE POSITION OF AN OBJECT IN A ZONE AND SYSTEM FOR DETERMINING THE POSITION OF AN OBJECT IN A ZONE WHICH USES ONE OR MORE OF SUCH DETECTION DEVICES. |
GB2477505A (en) * | 2010-02-03 | 2011-08-10 | Luke Eric Egan | Proximity sensing inflatable human interface device |
GB201203273D0 (en) * | 2012-02-24 | 2012-04-11 | Qinetiq Ltd | Monitoring transport network infrastructure |
EP2889186A1 (en) * | 2013-12-27 | 2015-07-01 | Demerstee Transport Solutions bvba | A driver drowsiness detection and alerting system |
CN105796076B (en) * | 2014-12-31 | 2020-11-06 | 汇嘉健康生活科技股份有限公司 | Optical fiber type continuous detection type blood pressure sensor and wearing device thereof |
US10907958B2 (en) * | 2017-09-07 | 2021-02-02 | Frank J Smith | Railroad track defect detection apparatus and method |
CN113089413B (en) * | 2021-04-21 | 2022-04-15 | 哈尔滨工业大学 | Intelligent dowel bar with embedded distributed optical fibers and manufacturing method thereof |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4443700A (en) * | 1980-02-01 | 1984-04-17 | Pedro B. Macedo | Optical sensing apparatus and method |
US4455465A (en) * | 1983-01-10 | 1984-06-19 | Automatic Toll Systems, Inc. | Treadle assembly with plural replaceable treadle switches |
US4482203A (en) * | 1981-03-19 | 1984-11-13 | Gould Inc. | Adjustable coupling device for a fiber-optic power divider |
US4488040A (en) * | 1982-11-19 | 1984-12-11 | Gte Products Corporation | Fiber optic sensor |
US4749246A (en) * | 1984-03-06 | 1988-06-07 | Stc Plc | Optical fiber sensors |
US4795232A (en) * | 1984-07-20 | 1989-01-03 | Telefonaktiebolaget Lm Ericsson | Fibre optic cable responsive to microbending forces |
US4830461A (en) * | 1987-01-29 | 1989-05-16 | Bridgestone Corporation | Pressure-sensitive sensors |
US4927232A (en) * | 1985-03-18 | 1990-05-22 | G2 Systems Corporation | Structural monitoring system using fiber optics |
US5056884A (en) * | 1990-04-10 | 1991-10-15 | Automatic Toll Systems, Inc. | Fiber optic load sensing device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4936649A (en) * | 1989-01-25 | 1990-06-26 | Lymer John D | Damage evaluation system and method using optical fibers |
US4909594A (en) * | 1989-02-23 | 1990-03-20 | The Dow Chemical Company | Optical coupler pressure or load sensor |
-
1990
- 1990-04-10 US US07/508,139 patent/US5056884A/en not_active Ceased
-
1991
- 1991-04-10 WO PCT/US1991/002463 patent/WO1991015788A1/en active Application Filing
- 1991-04-10 CA CA002079869A patent/CA2079869C/en not_active Expired - Fee Related
-
1993
- 1993-10-15 US US08/138,709 patent/USRE35020E/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4443700A (en) * | 1980-02-01 | 1984-04-17 | Pedro B. Macedo | Optical sensing apparatus and method |
US4482203A (en) * | 1981-03-19 | 1984-11-13 | Gould Inc. | Adjustable coupling device for a fiber-optic power divider |
US4488040A (en) * | 1982-11-19 | 1984-12-11 | Gte Products Corporation | Fiber optic sensor |
US4455465A (en) * | 1983-01-10 | 1984-06-19 | Automatic Toll Systems, Inc. | Treadle assembly with plural replaceable treadle switches |
US4749246A (en) * | 1984-03-06 | 1988-06-07 | Stc Plc | Optical fiber sensors |
US4795232A (en) * | 1984-07-20 | 1989-01-03 | Telefonaktiebolaget Lm Ericsson | Fibre optic cable responsive to microbending forces |
US4927232A (en) * | 1985-03-18 | 1990-05-22 | G2 Systems Corporation | Structural monitoring system using fiber optics |
US4830461A (en) * | 1987-01-29 | 1989-05-16 | Bridgestone Corporation | Pressure-sensitive sensors |
US5056884A (en) * | 1990-04-10 | 1991-10-15 | Automatic Toll Systems, Inc. | Fiber optic load sensing device |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5970199A (en) | 1996-12-11 | 1999-10-19 | Act Communications, Inc. | Frame for supporting fiber optic cable splices |
US20020075545A1 (en) * | 1998-12-22 | 2002-06-20 | Harrison Daniel David | Optcal high speed communications for a computed tomography x-ray machine |
US6580853B2 (en) * | 1998-12-22 | 2003-06-17 | Daniel David Harrison | Optical high speed communications for a computed tomography x-ray machine |
US7003206B2 (en) | 2000-10-23 | 2006-02-21 | Nufern | Cladding-pumped optical fiber and methods for fabricating |
US6779364B2 (en) | 2000-10-23 | 2004-08-24 | Nufern | Cladding-pumped optical fiber and methods for fabricating |
US20050008313A1 (en) * | 2000-10-23 | 2005-01-13 | Kanishka Tankala | Cladding-pumped optical fiber and methods for fabricating |
US6950586B2 (en) | 2001-03-02 | 2005-09-27 | Ocg Technology Licensing, Llc | Fiber for enhanced energy absorption |
US20040156606A1 (en) * | 2001-03-02 | 2004-08-12 | Hong Po | Fiber for enhanced energy absorption |
US6625363B2 (en) * | 2001-06-06 | 2003-09-23 | Nufern | Cladding-pumped optical fiber |
US6687445B2 (en) | 2001-06-25 | 2004-02-03 | Nufern | Double-clad optical fiber for lasers and amplifiers |
US20060097140A1 (en) * | 2003-05-03 | 2006-05-11 | Browning Thomas E Jr | Apparatus and method for a computerized fiber optic security system |
US7800047B2 (en) * | 2003-05-03 | 2010-09-21 | Woven Electronics, Llc | Apparatus and method for a computerized fiber optic security system |
US6972687B1 (en) * | 2003-07-14 | 2005-12-06 | Robert A Marshall | System and method for detecting a structure failure |
Also Published As
Publication number | Publication date |
---|---|
US5056884A (en) | 1991-10-15 |
WO1991015788A1 (en) | 1991-10-17 |
CA2079869C (en) | 1996-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CUBIC TOLL SYSTEMS, INC., NEW YORK Free format text: CHANGE OF NAME;ASSIGNOR:AUTOMATIC TOLL SYSTEMS, INC.;REEL/FRAME:006759/0653 Effective date: 19910313 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: SYNTONIC TECHNOLOGY, INC., A DELAWARE CORPORATION, Free format text: MERGER;ASSIGNOR:CUBIC TOLL SYSTEMS, INC., A NEW YORK CORPORATION;REEL/FRAME:010180/0481 Effective date: 19971027 Owner name: SYNTONIC TECHNOLOGY, INC., CALIFORNIA Free format text: MERGER;ASSIGNOR:CUBIC TOLL SYSTEMS, INC.;REEL/FRAME:010175/0509 Effective date: 19960604 |
|
AS | Assignment |
Owner name: DEUTSCHE FINANCIAL SERVICES CORPORATION, GEORGIA Free format text: SECURITY INTEREST;ASSIGNORS:TRANSCORE HOLDING, INC.;SYNTONIC TECHNOLOGY, INC.;JHK & ASSOCIATES, INC.;REEL/FRAME:010247/0458 Effective date: 19990903 |
|
AS | Assignment |
Owner name: SYNTONIC TECHNOLOGY, INC., PENNSYLVANIA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DEUTSCHE FINANCIAL SERVICES CORPORATION;REEL/FRAME:011058/0408 Effective date: 20000627 |
|
AS | Assignment |
Owner name: DEUTSCHE FINANCIAL SERVICES CORPORATION, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:SYNTONIC TECHNOLOGY, INC.;REEL/FRAME:011295/0195 Effective date: 20000630 |
|
AS | Assignment |
Owner name: HARRIS TRUST & SAVINGS BANK, AS AGENT, ILLINOIS Free format text: SECOND AMENDED & RESTATED CONDITIONAL ASSIGNMENT & PATENT SECURITY AGREEMENT;ASSIGNOR:TRANSCORE, INC.;REEL/FRAME:011648/0129 Effective date: 20010205 |
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Owner name: TRANSCORE, INC., PENNSYLVANIA Free format text: CHANGE OF NAME;ASSIGNOR:SYNTONIC TECHNOLOGY, INC.;REEL/FRAME:011934/0406 Effective date: 19991115 |
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AS | Assignment |
Owner name: TRANSCORE, LP, PENNSYLVANIA Free format text: CHANGE OF ENTITY TYPE;ASSIGNOR:TRANSCORE, INC.;REEL/FRAME:012166/0754 Effective date: 20010910 |
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Owner name: TC (BERMUDA) FINANCE, LTD., BERMUDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TRANSCORE, L.P.;REEL/FRAME:012243/0188 Effective date: 20010910 |
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Owner name: TRANSCORE, L.P., PENNSYLVANIA Free format text: RELEASEOF SECURITY INTEREST IN PATENTS;ASSIGNOR:HARRIS TRUST AND SAVINGS BANK;REEL/FRAME:012243/0883 Effective date: 20010910 |
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Owner name: TC (BERMUDA) LICENSE, LTD., BERMUDA Free format text: TERMINATION OF SECURITY INTEREST;ASSIGNOR:HARRIS TRUST AND SAVINGS BANK;REEL/FRAME:013516/0561 Effective date: 20021018 |
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Year of fee payment: 12 |
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