JP5628174B2 - 位相ベースの感知 - Google Patents
位相ベースの感知 Download PDFInfo
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- JP5628174B2 JP5628174B2 JP2011524441A JP2011524441A JP5628174B2 JP 5628174 B2 JP5628174 B2 JP 5628174B2 JP 2011524441 A JP2011524441 A JP 2011524441A JP 2011524441 A JP2011524441 A JP 2011524441A JP 5628174 B2 JP5628174 B2 JP 5628174B2
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- 238000000034 method Methods 0.000 claims description 37
- 230000003111 delayed effect Effects 0.000 claims description 33
- 239000000835 fiber Substances 0.000 claims description 26
- 230000008859 change Effects 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 8
- 238000003491 array Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000000644 propagated effect Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000005755 formation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- 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
- G01D5/35303—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 using a reference fibre, e.g. interferometric devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
Description
Claims (24)
- 位相ベース変換器に問い合わせる方法であって、前記変換器が、反射する手段を有する光ファイバセンサを備え、感知パラメータに応答して信号伝播の位相の変化を提供し、前記方法が、
前記変換器を通じて伝播される単一パルス信号を、光ファイバによって受信するステップと、
単一パルス信号の遅延バージョンを生成する干渉計を使用して、前記単一パルス信号の遅延バージョンおよび非遅延バージョンを合成するステップと、
前記合成から、前記信号の時間における位相の変化率の測定値を判定するステップと、を含む方法。 - 非遅延バージョンの周波数に対して遅延バージョンの周波数をシフトさせるステップをさらに含む、請求項1に記載の方法。
- 方法が信号に出力干渉計を通過させるステップを含む、請求項1または2に記載の方法。
- 受信された単一パルス信号が一連のパルスの一部である、請求項1から3のいずれか一項に記載の方法。
- 前記遅延バージョンが、パルス継続期間よりも短い時間だけ遅延する、請求項4に記載の方法。
- 前記遅延バージョンが、100ns未満だけ遅延する、請求項1から5のいずれか一項に記載の方法。
- 前記単一パルス信号が単一周波数を含む、請求項1から6のいずれか一項に記載の方法。
- 前記測定された位相変化率に基づいて位相値を取得するステップをさらに含む、請求項1から7のいずれか一項に記載の方法。
- 位相値を取得するステップが、前記測定された位相変化率を問い合わせるステップを含む、請求項8に記載の方法。
- 前記変換器が少なくとも1つの固有光ファイバセンサを含む、請求項1から9のいずれか一項に記載の方法。
- 前記変換器が、2つ以上のセンサを含むセンサパッケージを含む、請求項10に記載の方法。
- 前記パッケージが単一の入力/出力ファイバを含む、請求項11に記載の方法。
- 位相ベース変換器に問い合わせるシステムであって、前記変換器が感知パラメータに応答して信号電波の位相の変化を提供し、前記システムが、
入力信号に応答して前記変換器から出力される単一パルス信号を受信する受信器と、
前記出力信号の遅延バージョンを生成するための遅延を含み、前記出力信号の位相変化率の測定値を決定するために、前記出力信号を前記遅延出力信号と合成させるようになっていて、前記遅延が前記単一パルス信号の継続期間よりも短い時間を有する、位相検出器と、を含む、システム。 - 前記位相検出器が、非遅延バージョンの周波数に対して遅延バージョンの周波数をシフトさせるための周波数シフタを含む、請求項13に記載のシステム。
- 受信された単一パルス信号が一連のパルスの一部である、請求項13または14に記載のシステム。
- 前記遅延が100ns未満の時間を有する、請求項13から15のいずれか一項に記載のシステム。
- 前記変換器に入力信号を提供するための信号源をさらに含む、請求項13から16のいずれか一項に記載のシステム。
- 前記入力信号が一連の単一周波数パルスを含む、請求項17に記載のシステム。
- 前記入力信号が、一連の一時的間隔パルス対を含む、請求項17に記載のシステム。
- 位相ベース変換器に問い合わせる方法であって、前記変換器が感知パラメータに応答して信号伝播の位相の変化を提供し、前記方法が、
前記変換器を通じて伝播される単一周波数を有する信号を受信するステップと、
受信した単一周波数信号の遅延バージョンおよび非遅延バージョンを合成するステップと、
前記合成から、前記信号の時間における位相の変化率の測定値を判定するステップと、を含む、方法。 - 変換器から受信した信号が搬送波周波数を有し、前記信号のピーク瞬時周波数の大きさが搬送波周波数の大きさと同じかまたはそれより大きい、請求項1から12または20のいずれか一項に記載の方法。
- 位相ベース変換器が、ハイドロホン、受振器、または加速時計のうちの1つである、請求項1から12または20および21のいずれか一項に記載の方法。
- 請求項1から12または20から22のいずれか一項に記載の多重光ファイバ震動計アレイに問い合わせる、方法。
- 前記アレイから戻ってくるオーバースケール震動信号を回復するための、請求項23に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0815523.6 | 2008-08-27 | ||
GB0815523A GB0815523D0 (en) | 2008-08-27 | 2008-08-27 | Phase based sensing |
PCT/GB2009/002035 WO2010023434A2 (en) | 2008-08-27 | 2009-08-20 | Phase based sensing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012500988A JP2012500988A (ja) | 2012-01-12 |
JP5628174B2 true JP5628174B2 (ja) | 2014-11-19 |
Family
ID=39846817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011524441A Active JP5628174B2 (ja) | 2008-08-27 | 2009-08-20 | 位相ベースの感知 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8994953B2 (ja) |
EP (1) | EP2329226B1 (ja) |
JP (1) | JP5628174B2 (ja) |
CN (1) | CN102216737B (ja) |
GB (1) | GB0815523D0 (ja) |
NO (1) | NO2329226T3 (ja) |
WO (1) | WO2010023434A2 (ja) |
Families Citing this family (13)
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GB0705240D0 (en) * | 2007-03-14 | 2007-04-25 | Qinetiq Ltd | Phase based sensing |
GB0810977D0 (en) * | 2008-06-16 | 2008-07-23 | Qinetiq Ltd | Phase based sensing |
GB0917150D0 (en) | 2009-09-30 | 2009-11-11 | Qinetiq Ltd | Phase based sensing |
GB2488841B (en) | 2011-03-11 | 2014-09-10 | Tgs Geophysical Company Uk Ltd | Sensor array |
GB2489749B (en) * | 2011-04-08 | 2016-01-20 | Optasense Holdings Ltd | Fibre optic distributed sensing |
CN102997047A (zh) * | 2011-09-14 | 2013-03-27 | 中国石油天然气集团公司 | 一种天然气管道泄漏光纤监测传感器的复用/解复用系统 |
US9234790B2 (en) * | 2012-03-19 | 2016-01-12 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and methods utilizing optical sensors operating in the reflection mode |
RU2562689C1 (ru) * | 2014-06-02 | 2015-09-10 | Общество с ограниченной ответственностью "Научно-технический центр Т8" (ООО "Т8 НТЦ") | Распределенный датчик акустических и вибрационных воздействий |
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US20190003879A1 (en) * | 2015-12-08 | 2019-01-03 | Hawk Measurement Systems Pty. Ltd. | Improved optical fiber sensing system |
CA2970205A1 (en) * | 2017-06-08 | 2018-12-08 | Hifi Engineering Inc. | Optical interrogator for performing interferometry using fiber bragg gratings |
CN110365415B (zh) * | 2019-08-01 | 2020-10-20 | 浙江大学 | 一种基于光纤光栅传感器阵列的调频解调装置 |
CN116989832B (zh) * | 2023-09-26 | 2023-12-26 | 北京大学 | 一种可变多空间传感尺度地震勘探方法及系统 |
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-
2008
- 2008-08-27 GB GB0815523A patent/GB0815523D0/en not_active Ceased
-
2009
- 2009-08-20 EP EP09784972.3A patent/EP2329226B1/en active Active
- 2009-08-20 WO PCT/GB2009/002035 patent/WO2010023434A2/en active Application Filing
- 2009-08-20 JP JP2011524441A patent/JP5628174B2/ja active Active
- 2009-08-20 NO NO09784972A patent/NO2329226T3/no unknown
- 2009-08-20 US US13/060,546 patent/US8994953B2/en active Active
- 2009-08-20 CN CN200980143724.9A patent/CN102216737B/zh active Active
Also Published As
Publication number | Publication date |
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CN102216737A (zh) | 2011-10-12 |
US8994953B2 (en) | 2015-03-31 |
EP2329226B1 (en) | 2018-03-07 |
WO2010023434A2 (en) | 2010-03-04 |
US20110149295A1 (en) | 2011-06-23 |
GB0815523D0 (en) | 2008-10-01 |
JP2012500988A (ja) | 2012-01-12 |
EP2329226A2 (en) | 2011-06-08 |
CN102216737B (zh) | 2016-01-20 |
WO2010023434A3 (en) | 2010-04-22 |
NO2329226T3 (ja) | 2018-08-04 |
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