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公开(公告)号：EP2870432B1
公开(公告)日：2016-03-23
申请号：EP13734743.1
申请日：2013-07-04
CPC分类号： G01D5/268 , G01D5/35383 , G01D5/35387 , G01V1/226
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公开(公告)号：EP2870432A2
公开(公告)日：2015-05-13
申请号：EP13734743.1
申请日：2013-07-04
CPC分类号： G01D5/268 , G01D5/35383 , G01D5/35387 , G01V1/226
摘要： An optical monitoring system comprising first and second sensor arrays interrogated via first and second optical connections from an interrogator location. The system is configured such that no wavelength is carried bi-directionally in the first and second optical connections. In typical systems the optical connections comprise trunk cables from the sensor arrays to the interrogator location.
摘要翻译： 一种光学监测系统，包括通过来自询问器位置的第一和第二光学连接件询问的第一和第二传感器阵列。 该系统被配置成使得在第一和第二光学连接中不会双向地承载波长。 在典型的系统中，光学连接包括从传感器阵列到询问器位置的干线电缆。
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公开(公告)号：EP2494321A2
公开(公告)日：2012-09-05
申请号：EP10788368.8
申请日：2010-10-26
发明人： AUSTIN, Edward
CPC分类号： G01D5/26 , G01B9/02003 , G01B9/02014 , G01B9/02023 , G01B9/02027 , G01B11/02 , G01B2290/45 , G01D5/35303 , G01H9/004 , G01V1/16
摘要： There is described a method and apparatus for processing light pulses returned from an optical sensor, wherein the light pulses are applied to two interferometer arrangements, a first interferometer arranged simply to superimpose two pulses and detect a first resulting value, and the other interferometer being arranged to apply a relative phase shift of about n/2 before superimposing the two pulses to detect a second resulting value. The relative phase shift is applied by shifting the phase of one or both of the pulses. The first and second resulting values are divided to give a third value, representative of the sensor state. A seismic sensor array using such an apparatus to process returning pulses is also described.
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公开(公告)号：EP2438472A2
公开(公告)日：2012-04-11
申请号：EP10730818.1
申请日：2010-05-28
发明人： EISENHOWER, Frank, L. , LUFF, Richard, Edward , HADFIELD, Peter , GREENBERG, Ike , HENSHAW, Michael , CHURCHILL, John
CPC分类号： H02G1/10 , G01V1/18 , G01V1/20 , G01V1/3843 , H02G9/02
摘要： There is described an apparatus and method for deploying a sensor array comprising a plurality of sensors (5) joined together by connection cables (6) in one or more “chains”, and connected to an input/output device (8). An input/output connection unit (7, 15) is provided on a carrier (10), and the sensors are held on or in deployment devices (14a-14e) mounted to the carrier with their connection cables (6) connected to the input/output connection unit (7, 15). The input/output device (8) may also be mounted to the carrier, and connected to the connection unit (7, 15). The carrier (10), sensors, and input/output device (8) may be delivered as a single package to the area where the sensor array is to be deployed. The sensors are then moved from the carrier to their final positions. The deployment devices (14a-14e) may be detached from the carrier and moved sequentially to the sensor positions, and a sensor may be removed from the deployment device at each sensor position.
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公开(公告)号：EP2158459A1
公开(公告)日：2010-03-03
申请号：EP08762193.4
申请日：2008-05-23
发明人： NASH, Philip , HENSHAW, Michael
摘要： There is described an optical seismic cable (2) comprising a number of sensor units (5) spaced along the length of the cable and a number of connection units (4) spaced along the length of the cable, the cable further comprising a number of first optical fibres extending substantially continuously along the cable from one connection unit to the next, and a number of second optical fibres which each extend part-way along the cable between adjacent connection units, and wherein at each connection unit at least one first optical fibre is joined to a second optical fibre, and wherein at the sensor units sensors are joined to said second optical fibres. A second aspect of the invention provides an optical seismic cable module (3) comprising a number of first optical fibres extending substantially continuously from one end of the cable module to the other, and a number of second optical fibres which each extend part-way along the cable module, the seismic cable module further comprising at one end a connection unit at which at least one first optical fibre is joined to a second optical fibre, and a number of sensor units at which sensors are joined to second optical fibres.
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公开(公告)号：EP2577233B1
公开(公告)日：2016-02-24
申请号：EP11717318.7
申请日：2011-04-20
发明人： FELLS, Julian , AUSTIN, Edward , NASH, Philip
CPC分类号： G01H9/004 , G01D5/35383
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公开(公告)号：EP2577233A1
公开(公告)日：2013-04-10
申请号：EP11717318.7
申请日：2011-04-20
发明人： FELLS, Julian , AUSTIN, Edward , NASH, Philip
CPC分类号： G01H9/004 , G01D5/35383
摘要： An optical sensing system, comprising a plurality of optical sensors (206... 209), first (203... 205) and second (215, 216) input trees, and first (210... 212) and second (219, 220) output trees. The first and second input trees are configured to direct respective optical signals from a first (202) and a second (214) input to each of the sensors, and the first and second output trees are configured to direct optical signals from each of the sensors (206... 209) to a first (213) and a second (221) optical output. The first and second input and/or output trees are configured to direct signals of particular wavelengths (A
1 ... D-
1 , A
2 ... D
2 ) from particular sensors to the first and second input and/or output, respectively. A redundant connection system thus provided allows continued operation in the event of a fibre or cable break (300).
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