CA2391395A1 - Method and apparatus for correcting systematic error in a wavelength measuring device - Google Patents
Method and apparatus for correcting systematic error in a wavelength measuring device Download PDFInfo
- Publication number
- CA2391395A1 CA2391395A1 CA002391395A CA2391395A CA2391395A1 CA 2391395 A1 CA2391395 A1 CA 2391395A1 CA 002391395 A CA002391395 A CA 002391395A CA 2391395 A CA2391395 A CA 2391395A CA 2391395 A1 CA2391395 A1 CA 2391395A1
- Authority
- CA
- Canada
- Prior art keywords
- wavelength
- reflected
- temperature
- fbgs
- reference fbg
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000009897 systematic effect Effects 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
Abstract
A method and apparatus for compensating for systematic error a wavelength measure device, providing values for the wavelengths reflected from fiber Bragg gratings (FBGs) being used as sensors. The invention uses a high-precision temperature sensing and measuring circuit to measure the temperature of a reference FBG. The wavelength reflected by the reference FBG
changes with temperature in a known way and the temperature of the reference FBG must be measured to know what wavelength is in fact being reflected. This wavelength is then provided to a dynamic compensator, which also receives the wavelength of light reflected from the sensor FBGs, and adjusts the wavelengths of the sensors FBGs using a correction based on the correction required to adjust the wavelength of the reference FBG so as to agree with the wavelength in fact reflected from the reference FBG. The circuit uses a reference resistor, unaffected by temperature, and a thermistor, and measures bothresistances using the same exact circuit components by switching either the thermistor or the reference resistor in to the same temperature sensing and measuring circuit.
changes with temperature in a known way and the temperature of the reference FBG must be measured to know what wavelength is in fact being reflected. This wavelength is then provided to a dynamic compensator, which also receives the wavelength of light reflected from the sensor FBGs, and adjusts the wavelengths of the sensors FBGs using a correction based on the correction required to adjust the wavelength of the reference FBG so as to agree with the wavelength in fact reflected from the reference FBG. The circuit uses a reference resistor, unaffected by temperature, and a thermistor, and measures bothresistances using the same exact circuit components by switching either the thermistor or the reference resistor in to the same temperature sensing and measuring circuit.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/448,003 US6403949B1 (en) | 1999-11-23 | 1999-11-23 | Method and apparatus for correcting systematic error in a wavelength measuring device |
US09/448,003 | 1999-11-23 | ||
PCT/US2000/031057 WO2001038837A1 (en) | 1999-11-23 | 2000-11-13 | Method and apparatus for correcting systematic error in a wavelength measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2391395A1 true CA2391395A1 (en) | 2001-05-31 |
CA2391395C CA2391395C (en) | 2006-08-22 |
Family
ID=23778633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002391395A Expired - Fee Related CA2391395C (en) | 1999-11-23 | 2000-11-13 | Method and apparatus for correcting systematic error in a wavelength measuring device |
Country Status (7)
Country | Link |
---|---|
US (1) | US6403949B1 (en) |
EP (1) | EP1236026B1 (en) |
AU (1) | AU1599901A (en) |
CA (1) | CA2391395C (en) |
DE (1) | DE60025524D1 (en) |
NO (1) | NO335932B1 (en) |
WO (1) | WO2001038837A1 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3829910B2 (en) * | 2000-06-29 | 2006-10-04 | 横河電機株式会社 | Wavelength multiplexed signal light analysis method and apparatus |
US7180601B1 (en) * | 2000-11-01 | 2007-02-20 | Cidra Corporation | Optical system featuring chirped Bragg grating etalon for providing precise reference wavelengths |
US6947637B2 (en) * | 2001-08-09 | 2005-09-20 | Corning Incorporated | Measurement of fiber strain during processing |
US6915686B2 (en) | 2003-02-11 | 2005-07-12 | Optoplan A.S. | Downhole sub for instrumentation |
US7159653B2 (en) | 2003-02-27 | 2007-01-09 | Weatherford/Lamb, Inc. | Spacer sub |
US7245382B2 (en) * | 2003-10-24 | 2007-07-17 | Optoplan As | Downhole optical sensor system with reference |
US7145823B2 (en) * | 2004-06-30 | 2006-12-05 | Intel Corporation | Method and apparatus to implement a temperature control mechanism on a memory device |
US7603041B2 (en) * | 2005-06-09 | 2009-10-13 | Cubic Corporation | Temperature compensated dynamic optical tag modulator system and method |
US7413343B2 (en) * | 2005-09-16 | 2008-08-19 | Kyocera Wireless Corp. | Apparatus for determining a temperature sensing element |
TWI262289B (en) * | 2005-09-23 | 2006-09-21 | Univ Nat Chiao Tung | Optical-fiber raster double-bearing type inclination sensor for sensing stratum displacement |
WO2009058890A2 (en) * | 2007-10-29 | 2009-05-07 | Cubic Corporation | Resonant quantum well modulator driver |
JP5215060B2 (en) * | 2008-07-02 | 2013-06-19 | テルモ株式会社 | Electronic thermometer and operation control method |
US9091151B2 (en) | 2009-11-19 | 2015-07-28 | Halliburton Energy Services, Inc. | Downhole optical radiometry tool |
WO2011078869A1 (en) * | 2009-12-23 | 2011-06-30 | Halliburton Energy Services, Inc. | Interferometry-based downhole analysis tool |
CA2794711C (en) | 2010-06-01 | 2016-02-16 | Halliburton Energy Services, Inc. | Spectroscopic nanosensor logging systems and methods |
CN102884604B (en) | 2010-06-16 | 2016-06-29 | 哈里伯顿能源服务公司 | There is the IR of the enhancing downhole source launched |
TWI445936B (en) | 2011-06-03 | 2014-07-21 | Univ Nat Taiwan Science Tech | Temperature sensing system for supporting single-point calibration |
US9562844B2 (en) | 2014-06-30 | 2017-02-07 | Baker Hughes Incorporated | Systems and devices for sensing corrosion and deposition for oil and gas applications |
US10209378B2 (en) * | 2015-03-26 | 2019-02-19 | Halliburton Energy Services, Inc. | Photopeak location systems and methods |
TWI577975B (en) * | 2015-06-02 | 2017-04-11 | 國立成功大學 | Fiber signal scanning device and fiber signal scanning method |
US11143786B2 (en) * | 2018-07-05 | 2021-10-12 | Halliburton Energy Services, Inc. | Intrinsic geological formation carbon to oxygen ratio measurements |
US10527784B1 (en) * | 2018-11-15 | 2020-01-07 | General Electric Company | Systems and methods for providing a stable wavelength reference in an integrated photonic circuit |
CN112344973B (en) * | 2020-09-27 | 2022-07-26 | 北京遥测技术研究所 | Fiber grating etalon based on closed cavity metal plate temperature control and use method |
US11698308B2 (en) * | 2020-10-05 | 2023-07-11 | Openlight Photonics, Inc. | Optical temperature measurements in photonic circuits |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE205524C (en) | ||||
US4065715A (en) | 1975-12-18 | 1977-12-27 | General Motors Corporation | Pulse duration modulated signal transducer |
US4121461A (en) | 1977-11-17 | 1978-10-24 | General Electric Company | Electronic temperature sensor |
US4315413A (en) | 1979-12-31 | 1982-02-16 | Whirlpool Corporation | Selective temperature control system |
US4488823A (en) | 1979-12-31 | 1984-12-18 | Whirlpool Corporation | Selective temperature control system |
JPS59225324A (en) | 1983-06-06 | 1984-12-18 | Terumo Corp | Electronic thermometer |
US4765184A (en) | 1986-02-25 | 1988-08-23 | Delatorre Leroy C | High temperature switch |
US4841458A (en) | 1987-07-07 | 1989-06-20 | Honeywell, Incorporated | Analog to digital conversion by measuring the ratio of RC time constants |
JPS6439502A (en) | 1987-08-05 | 1989-02-09 | Man Design Co | Length measuring instrument |
SU1506297A1 (en) | 1987-12-25 | 1989-09-07 | Уфимский Нефтяной Институт | Device for measuring temperature |
US5046859A (en) | 1988-06-17 | 1991-09-10 | Ricoh Company, Ltd. | Temperature measuring device and thermal head device having the same |
SU1560989A1 (en) | 1988-07-15 | 1990-04-30 | Центральное конструкторское бюро гидрометеорологического приборостроения | Digital thermometer of remote measuring of temperature |
DE3879211T2 (en) | 1988-11-04 | 1993-09-16 | Horiba Ltd | TEMPERATURE COMPENSATION CIRCUIT. |
US5042898A (en) | 1989-12-26 | 1991-08-27 | United Technologies Corporation | Incorporated Bragg filter temperature compensated optical waveguide device |
US5255975A (en) | 1991-11-26 | 1993-10-26 | Honeywell Inc. | Low cost calibration system for frequency varying temperature sensing means for a thermostat |
GB2269230A (en) | 1992-07-31 | 1994-02-02 | Sinar Agritec Ltd | Measuring light wavelength. |
US5691999A (en) | 1994-09-30 | 1997-11-25 | United Technologies Corporation | Compression-tuned fiber laser |
US5469520A (en) | 1994-09-30 | 1995-11-21 | United Technologies Corporation | Compression-tuned fiber grating |
US5838437A (en) | 1997-04-09 | 1998-11-17 | Micron Optics, Inc. | Reference system for optical devices including optical scanners and spectrum analyzers |
US5892582A (en) * | 1996-10-18 | 1999-04-06 | Micron Optics, Inc. | Fabry Perot/fiber Bragg grating multi-wavelength reference |
US5862170A (en) | 1996-11-06 | 1999-01-19 | Lockheed Martin Energy Research Corporation | Temperature measurement method using temperature coefficient timing for resistive or capacitive sensors |
NO307357B1 (en) | 1997-02-14 | 2000-03-20 | Optoplan As | Device for painting optical wavelengths |
GB2326471B (en) | 1997-06-19 | 2001-05-30 | British Aerospace | A strain isolated optical fibre bragg grating sensor |
US5877426A (en) | 1997-06-27 | 1999-03-02 | Cidra Corporation | Bourdon tube pressure gauge with integral optical strain sensors for measuring tension or compressive strain |
DE59811539D1 (en) | 1998-01-27 | 2004-07-15 | Michael Hesky Gmbh | Temperature measurement and monitoring arrangement |
-
1999
- 1999-11-23 US US09/448,003 patent/US6403949B1/en not_active Expired - Lifetime
-
2000
- 2000-11-13 EP EP00978545A patent/EP1236026B1/en not_active Expired - Lifetime
- 2000-11-13 AU AU15999/01A patent/AU1599901A/en not_active Abandoned
- 2000-11-13 CA CA002391395A patent/CA2391395C/en not_active Expired - Fee Related
- 2000-11-13 WO PCT/US2000/031057 patent/WO2001038837A1/en active IP Right Grant
- 2000-11-13 DE DE60025524T patent/DE60025524D1/en not_active Expired - Lifetime
-
2002
- 2002-05-22 NO NO20022416A patent/NO335932B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO20022416D0 (en) | 2002-05-22 |
NO20022416L (en) | 2002-07-18 |
NO335932B1 (en) | 2015-03-30 |
CA2391395C (en) | 2006-08-22 |
DE60025524D1 (en) | 2006-04-06 |
WO2001038837A1 (en) | 2001-05-31 |
EP1236026B1 (en) | 2006-01-11 |
EP1236026A1 (en) | 2002-09-04 |
AU1599901A (en) | 2001-06-04 |
WO2001038837A8 (en) | 2001-11-29 |
US6403949B1 (en) | 2002-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2391395A1 (en) | Method and apparatus for correcting systematic error in a wavelength measuring device | |
US6798522B2 (en) | Wavelength measurement adjustment | |
KR100329042B1 (en) | Fiber ortic strain sensing system | |
CA2490041C (en) | Wavelength reference system for optical measurements | |
US5877426A (en) | Bourdon tube pressure gauge with integral optical strain sensors for measuring tension or compressive strain | |
WO2006009608A3 (en) | Reactive sensor modules using pade' approximant based compensation and providing module-sourced excitation | |
US20060153490A1 (en) | Passive athermal fiber bragg grating strain gage | |
KR940006316A (en) | Wavelength measuring device and regulating device equipped with the same | |
EP2081006A1 (en) | Optical fiber temperature sensor | |
WO2000033048A3 (en) | Fiber optic bragg grating pressure sensor | |
EP2295946A1 (en) | Athermal fiber bragg grating strain gauge | |
WO2000015016A3 (en) | Method and device for calibrating a displacement path and/or angular position of a holding device in a device for producing electrical assembly groups and calibration substrate | |
CN112986892B (en) | Optical fiber current sensor factory and engineering field calibration method and calibration device | |
JP4403674B2 (en) | Optical fiber sensor | |
Du et al. | Temperature independent strain measurement with a fiber grating tapered cavity sensor | |
ATE340352T1 (en) | DIFFERENTIAL MEASUREMENT SYSTEM BASED ON THE USE OF PAIRS OF BRAGG GRIDS | |
WO2002012938A1 (en) | Passive, temperature compensated techniques for tunable filter calibration in bragg-grating interrogation systems | |
JPH0823494B2 (en) | Method for compensating for changes in wavelength and reference coefficient of light source of fiber optic interferometer | |
CA2639463C (en) | Spectrally stabilized broadband optical source | |
Chiang et al. | Temperature-insensitive linear strain measurement using two fiber Bragg gratings in a power detection scheme | |
JP4472239B2 (en) | Disturbance compensation method and apparatus for optical sensor | |
JPH0344525A (en) | Light measuring apparatus | |
Zhang et al. | Optical fiber sensor by cascading long period fiber grating with FBG for double parameters measurement | |
Patrick et al. | Fiber Bragg grating with long-period fiber grating superstructure for simultaneous strain and temperature measurement | |
KR100368122B1 (en) | Chirped fiber grating sensor with variable reflection bandwidth according to strain and strain measurement system using the sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20171114 |