CN104596686B - Stress Monitoring drilled three-dimensionally sensing means based on optical fiber sensing technology - Google Patents

Stress Monitoring drilled three-dimensionally sensing means based on optical fiber sensing technology Download PDF

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CN104596686B
CN104596686B CN 201510014775 CN201510014775A CN104596686B CN 104596686 B CN104596686 B CN 104596686B CN 201510014775 CN201510014775 CN 201510014775 CN 201510014775 A CN201510014775 A CN 201510014775A CN 104596686 B CN104596686 B CN 104596686B
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component
probe
stress
sensing means
single
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CN104596686A (en )
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仲志成
林君
赵斌
王龙南
徐佩华
李哲
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吉林大学
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Abstract

本发明公开了一种基于光纤传感技术的钻孔式三维地应力监测传感装置,包括高压橡胶管、高压橡胶连接管、第一三分量探头、第二三分量探头、第三三分量探头和传感装置端头,第一三分量探头、第二三分量探头、第三三分量探头通过通过双螺纹连接件相连,第一三分量探头为轴向平面三分量探头,第二三分量探头、第三三分量探头为方向相差90°角的切向平面三分量探头,第一三分量探头、第二三分量探头、第三三分量探头均由限位块、铝合金基座、三个单分量传感芯片、单分量传感芯片支架和传感装置保护套管。 The present invention discloses a three-dimensionally drilled stress monitoring sensing means sensing technology based on an optical fiber, comprising a high pressure rubber tube, rubber high-pressure connection pipe, the first three components of the probe, the second probe three-component, three-component third probe and sensing means tip, a first probe three-component, three-component second probe, third probe is connected via the three-component by a double threaded connection, a first three-component three-component probe to an axial plane of the probe, the second probe three-component the third probe is a three-component tangential direction of the phase difference angle of 90 ° to the plane of the three-component probe, the first probe three-component, three-component second probe, third probe three-component stopper, by an aluminum alloy base, three single component sensor chip, single-component sensing means and a sensor chip holder protective sleeve. 本发明可以直接服务于油气资源勘查、发震断裂带地应力监测、大型边坡岩体应力变化监测,为人们的生活提供能源保障、安全,其社会作用、经济效益巨大。 The present invention can directly serve the oil and gas resources exploration, earthquake fault zone to monitor stress, stress major rock slope change monitoring, providing energy security, security for the people's lives, their social role, the huge economic benefits.

Description

基于光纤传感技术的钻孔式三维地应力监测传感装置 Stress Monitoring drilled three-dimensionally sensing means based on optical fiber sensing technology

技术领域 FIELD

[0001] 本发明涉及传感器领域,具体涉及一种基于光纤传感技术的钻孔式三维地应力监测传感装置。 [0001] The present invention relates to sensors, and in particular relates to three-dimensional borehole stress monitoring sensing means based on optical fiber sensing technology.

背景技术 Background technique

[0002] 地应力状态数据是油气资源勘查、地质灾害研究与防治、城市建设、地震预测预报、边坡岩体稳定性研究等领域不可缺少的基础资料,其准确程度直接影响工程的质量甚至成败。 [0002] Data stress state oil and gas resources exploration, research and prevention, urban construction, earthquake prediction, rock slope stability study of geological disasters and other essential basic data, the accuracy of which directly affect the quality and even the success or failure of the project . 因此,地应力测量与监测成为人类工程活动中不可或缺的工作。 Therefore, stress measurement and monitoring of human engineering activities become an integral part of the work. 目前,随着我国煤矿等各种矿产开采、引水、引电、水库建设、地质灾害防治、油气田勘探等大型工程的开发,对岩体地应力连续监测的需求猛增,也对岩体地应力监测仪器的可靠性、精度和自动化程度提出了更高的要求。 Now, with all kinds of coal and other mineral mining, water, electricity lead the development of large-scale projects, the construction of reservoirs, prevention of geological disasters, such as oil and gas field exploration, continuous monitoring of rock mass stress to the surge in demand, but also to stress on the rock reliability, accuracy and automation of monitoring instruments put forward higher requirements. 以地应力监测在油气田勘探领域为例,首先,地应力是油气运移、聚集的动力之一,地应力作用下所形成的储层裂缝、断层及构造是油气运移、聚集的通道和场所之一,现今地应力场影响和控制着油气田开发过程中油、气、水的动态变化。 In the stress monitoring oil and gas exploration in the Example, firstly, the stress of hydrocarbon migration, one power accumulation reservoir to fracture under stress is formed, and the fault structure of hydrocarbon migration, accumulation channels and places one, now to influence and control the stress field and gas field development dynamic change process oil, gas and water. 其次,通过分析地应力与裂缝的关系可以研究油气运移与聚集的规律,寻找含油气盆地。 Second, the law of hydrocarbon migration can be studied by analyzing the relationship between the accumulation of stress and crack, looking petroliferous basins. 最后,根据地应力三维空间的分布特征和储集层岩性参数,不仅可以预测裂缝扩展的规律,为制定合理的油气田开发方案提供依据,而且还可以建立地层压力剖面来预测石油钻井工程井眼的稳定性。 Finally, distribution of base stress three-dimensional space and a reservoir lithology parameters, to predict not only the law of crack propagation, provide a basis for rational field development program, but also to establish the formation pressure profile predicted drilling engineering wellbore stability. 因此,地应力是油田开发方案设计、水力压裂裂缝扩展规律分析、地层破裂压力和地层坍塌压力预测的基础数据,获取准确的地应力监测资料对于油气田勘探开发具有重要现实意义和经济意义。 Therefore, the stress is the field development plan design, hydraulic fracturing crack propagation law analysis, fracture pressure and formation pressure prediction of the collapse of basic data, obtaining accurate data to monitor stress has important practical significance and economic significance for the oil and gas field exploration and development. 另外,我国是世界上构造活动性最剧烈的大陆之一,地质灾害频发,地球内部热动力和板块间作用力直接控制了火山喷发、地震、岩爆和群发性滑坡泥石流等重大灾害。 In addition, China is one of the world's most intense tectonic activity of the continent, geological disasters, between the Earth's interior heat and power sector forces direct control of the volcanic eruption, major disasters such as earthquakes, mass of rock burst and landslide and debris flows. 进一步了解地球内部精细结构和地块活动规律,地壳应力集中和释放的机理是地质灾害预警预报的基础。 Learn more about the fine structure of the Earth's interior and land activity patterns, crustal stress concentration and release mechanism is the basis for early warning and forecasting of geological disasters. 2001年11月14日昆仑山MsS.1特大地震前后地应力变化被我国地质学家捕获,证实昆仑山大地震前地表应力高度集中和积累,最大主应力达到12Mpa,地震后下降到3-4MPa,昆仑山特大地震释放应力2/3。 November 14, 2001 to stress change before and after the devastating earthquake in the Kunlun Mountains MsS.1 be captured our geologists, confirmed before the earthquake surface stress is highly concentrated and accumulated by Kunlun Mountain, the maximum principal stress reaches 12Mpa, down to 3-4MPa after the earthquake, Kunlun Mountains earthquake releases stress 2/3. 这是世界上首次监测到特大地震前后原位地应力变化,证明了李四光先生提出的利用地应力变化预报地震的技术路线是正确的,有效的。 This is the first time in the world to monitor in situ stress changes before and after the earthquake proved that the use of the stress changes proposed by Mr. Li siguang earthquake prediction technology roadmap is correct and effective. 我国于上世纪60-70年代曾经部署了几十台地应力测量仪,组成初步的监测网,探索地震预报的新途径。 China in the last century, 60--70 years had deployed dozens stress meter platform, consisting of preliminary monitoring network, explore new ways of earthquake prediction. 数十年过去了,地应力测量技术发展非常快,精度大幅度提高,并实现了实时监测和远程传输。 Decades later, the stress measurement technology is developing very fast, accuracy greatly improved, and enables real-time monitoring and remote transmission. 因此,开展我国实时地应力场监测,为开展地质灾害预警预报,提高预报能力和精度,有效减轻地质灾害造成的损失。 Therefore, to carry out real-time monitoring of stress field, to carry out geological disaster early warning and forecasting, improve forecasting capability and accuracy, effectively reduce the losses caused by geological disasters.

[0003]目前比较成熟的地应力监测技术主要有体积式监测仪器、电容式分量监测仪器和压磁式分量监测仪器,然而由于受到钻孔位置和井孔深度的限制以及仪器在高温高压下长期工作稳定性问题,传统的电学监测仪器使用受到了限制。 [0003] relatively mature technology mainly to stress monitoring volumetric monitoring equipment, monitoring equipment, and a capacitive component magnetic component pressure monitoring instruments, however, due to the well bore depth and drilling position of the instrument and limit the long-term high temperature and pressure job stability, conventional electrical monitoring instruments use has been limited. 针对现有的电学地应力监测仪器存在的不足,本发明采用光纤传感技术研制三维地应力监测传感装置。 The disadvantages of the existing electrically stress monitoring equipment, the present invention uses an optical fiber sensing technology developed three-dimensionally sensing means to monitor stress. 光纤传感技术是一门新兴的、多学科交叉的高科技应用技术,相对于传统传感器,光纤光栅传感器具有灵敏度高、响应速度快、耐腐蚀、体积小、寿命长、无源性、抗电磁干扰、具有分布式测量能力、便于与光纤传输系统组成遥测网络等优点,非常适用于恶劣环境下的长期监测,成为最具有发展前景的电类传感器的替代品。 Optical fiber sensing technology is a new, high-tech applications multidisciplinary technology, with respect to conventional sensors, fiber grating sensors have a high sensitivity, fast response, corrosion resistance, small size, long life, passive resistance, electromagnetic interference with distributed measurement capability, and the like to facilitate advantages of optical fiber transmission network telemetry system components, is suitable for long-term monitoring in harsh environments, as an alternative to having an electrical type sensor most promising.

发明内容 SUMMARY

[0004] 为解决上述问题,本发明提供了一种基于光纤传感技术的钻孔式三维地应力监测传感装置。 [0004] In order to solve the above problems, the present invention provides a three-dimensionally drilled stress monitoring sensing means based on optical fiber sensing technology.

[0005] 为实现上述目的,本发明采取的技术方案为: [0005] To achieve the above object, the present invention takes technical solutions:

[0006] 基于光纤传感技术的钻孔式三维地应力监测传感装置,包括高压橡胶管、高压橡胶连接管、第一三分量探头、第二三分量探头、第三三分量探头和传感装置端头,第一三分量探头、第二三分量探头、第三三分量探头通过双螺纹连接件相连,并通过限位块限定各自的相对位置,第一三分量探头为轴向平面三分量探头,第二三分量探头、第三三分量探头为方向相差90 °角的切向平面三分量探头,第一三分量探头、第二三分量探头、第三三分量探头均由限位块、铝合金基座、三个单分量传感芯片、单分量传感芯片支架和传感装置保护套管构成,单分量传感芯片支架的数量为三个,呈夹角开设在所述传感装置保护套管上,三个单分量传感芯片通过光纤以串联的方式安装在所述单分量传感芯片支架上,最上端的铝合金基座上端通过高压橡胶连接管连接有 [0006] Based on the three-dimensional borehole stress sensing means monitoring optical fiber sensing technology, including a high pressure rubber tube, rubber high-pressure connection pipe, the first three components of the probe, the second probe three-component, three-component sensor and the third sensor means end, a first probe three-component, three-component second probe, third probe by a three-component double-threaded connecting member is connected, and defines a relative position of each stopper, the probe is a first axial plane of the three-component three-component probe, a second three-component probe, third probe is a three-component tangential direction of the phase difference angle of 90 ° to the plane of the three-component probe, the first probe three-component, three-component second probe, third probe by three-component stopper, aluminum base, three components of a single sensor chip, single-component sensing means and a sensor chip protective sleeve stent configuration, the number of single-component sensor chip holder is three, the angle was set up in the sensing device the protective sleeve, three components of a single sensor chip is mounted in series on a single component of the sensor chip through the optical fiber holder, an upper end of the top of the base alloy by a high-pressure connection pipe connected to the rubber 压橡胶管,最下端的铝合金基座下端连接有传感装置端头,所述单分量传感芯片由若干碳纤维复合材料片通过环氧树脂胶层粘结而成,所述碳纤维复合材料片的一面通过环氧树脂胶黏贴有光纤光栅,所述碳纤维复合材料片与所述环氧树脂胶层的厚度相同。 Pressure rubber tube, an aluminum alloy base is connected to the lower end of the lowermost end sensing means, said sensor chip by the single-piece component of several carbon fiber composite material obtained by bonding with an epoxy resin layer, the carbon fiber composite sheet material adhesive side of an optical fiber grating by epoxy glue, the same thickness of the carbon fiber composite material sheet with the epoxy glue layer.

[0007] 其中,所述的环氧树脂胶层采用耐高温环氧树脂。 [0007] wherein said epoxy resin glue with high temperature epoxy.

[0008] 其中,所述的夹角为60°或45°。 [0008] wherein the angle is 60 ° or 45 °.

[0009] 其中,所述的光纤光栅为外径为0.125mm的单模光纤,反射率近似为100%,3dB带宽为1.068nm。 [0009] wherein said fiber grating is an outer diameter of 0.125mm single-mode fiber, the reflectance is approximately 100%, 3dB bandwidth of 1.068nm.

[0010] 其中,所述的单分量传感芯片外包裹有金属套管。 [0010] wherein the single components of the sensor chip package according to an outer metal sleeve.

[0011] 本发明具有以下有益效果: [0011] The present invention has the following advantages:

[0012]可以直接服务于油气资源勘查、发震断裂带地应力监测、大型边坡岩体应力变化监测,为人们的生活提供能源保障、安全,其社会作用、经济效益巨大。 [0012] can directly serve the oil and gas resources exploration, earthquake fault zone to monitor stress, stress major rock slope change monitoring, providing energy security, security for the people's lives, their social role, the huge economic benefits.

附图说明 BRIEF DESCRIPTION

[0013]图1为本发明实施例一种基于光纤传感技术的钻孔式三维地应力监测传感装置的分解图。 [0013] FIG. 1 embodiment of a three-dimensional exploded view of the drilling stress monitoring sensing means based on optical fiber sensing technology of the embodiment of the present invention.

[0014]图2为图1中单分量传感芯片的内部结构示意图。 [0014] FIG. 2 is a schematic block diagram of the internal components of a single sensor chip.

[0015]图3为单分量传感芯片封装后的的结构示意图。 [0015] FIG. 3 is a schematic view of the components of a single sensor chip package.

[0016]图4为三维地应力传感装置测试系统示意图 [0016] FIG. 4 is a schematic view three-dimensionally strain sensing device testing system

具体实施方式 Detailed ways

[0017] 为了使本发明的目的及优点更加清楚明白,以下结合实施例对本发明进行进一步详细说明。 [0017] In order to make objects and advantages of the present invention will become more apparent hereinafter in conjunction with embodiments of the present invention will be further described in detail. 应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。 It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention.

[0018]如图1-3所示,本发明实施例提供了一种基于光纤传感技术的钻孔式三维地应力监测传感装置,包括高压橡胶管1、高压橡胶连接管2、第一三分量探头9、第二三分量探头10、第三三分量探头11和传感装置端头8,第一三分量探头9、第二三分量探头10、第三三分量探头11通过双螺纹连接件12相连,并通过限位块13限定各自的相对位置,第一三分量探头9为轴向平面三分量探头,第二三分量探头10、第三三分量探头11为方向相差90°角的切向平面三分量探头,第一三分量探头9、第二三分量探头1、第三三分量探头11均由限位块13、铝合金基座6、三个单分量传感芯片5、单分量传感芯片支架7和传感装置保护套管4构成,单分量传感芯片支架7的数量为三个,呈夹角开设在所述传感装置保护套管4上,三个单分量传感芯片5通过光纤3以串联的方式安装在所述单分量传感芯 [0018] 1-3, the embodiment provides a three-dimensionally drilled stress monitoring sensing means based on optical fiber sensing technology of the present invention, comprising a high-pressure rubber tube, rubber high-pressure connection pipe 2, the first probe 9 three-component, three-component second probe 10, the probe 11 and the third three-component sensing means tip 8, a first three-component probe 9, a second three-component probe 10, the probe 11 via a third three-component double-threaded connector member 12 is connected, and defines a relative position of each stopper 13, the first probe head 9 is a three-component three-component probe an axial plane, a second three-component probe 10, the probe 11 of the third three-component phase difference angle of 90 ° direction plane tangential to the three-component probe, the first probe head 9 three-component, three-component probe 1 second, the third three-component probe 11 by the stopper 13, the aluminum alloy base 6, three single component sensor chip 5, a single component of the sensor chip 7 and the bracket 4 constituting a protective sleeve sensing means, the number of single components of the sensor chip holder 7 is three, the angle was set up at 4, three components of a single pass of the sensing device protective sleeve sensing chip 5 through the optical fiber 3 is mounted in series in the sense die in a single component 片支架7上,最上端的铝合金基座6上端通过高压橡胶连接管2连接有高压橡胶管I,最下端的铝合金基座6下端连接有传感装置端头8,所述单分量传感芯片5由若干碳纤维复合材料片50通过环氧树脂胶层51粘结而成,所述碳纤维复合材料片50的一面通过环氧树脂胶黏贴有光纤光栅52,所述碳纤维复合材料片50与所述环氧树脂胶层51的厚度相同。 The sheet holder 7, the upper end of the top 6 of the base alloy by a high-pressure rubber high-pressure connection pipe 2 is connected to the I rubber tube, the lower end of the lowermost end of the aluminum alloy 6 is connected to the base end of the head 8 sensing means, said single sensing component fiber grating 52, the composite sheet by a plurality of chip 5 sheets of carbon fiber composites 50 bonded together by epoxy resin adhesive layer 51, the carbon fiber composite material sheet 50 has adhesive on one side by epoxy glue 50 and the carbon fibers same thickness of the epoxy glue layer 51.

[0019] 所述的环氧树脂胶层采用耐高温环氧树脂。 [0019] The epoxy resin glue with high temperature epoxy.

[0020] 所述的夹角为60°或45°。 [0020] The angle of 60 ° or 45 °.

[0021] 所述的光纤光栅52为外径为0.125_的单模光纤,反射率近似为100%,3dB带宽为1.068nm。 Fiber grating [0021] The outer diameter of 52 0.125_ single mode fiber, the reflectance is approximately 100%, 3dB bandwidth of 1.068nm.

[0022] 所述的单分量传感芯片5外包裹有金属套管。 [0022] Single component 5 of the outer wrap sensor chip has a metal sleeve.

[0023] 其中,单向应力应变传感芯片5的制作工艺为:首先,碳纤维复合材料被剪切成很多小薄片,每片的尺寸是1X 10mm2,利用环氧树脂胶将碳纤维复合材料片一片一片的粘接在一起,并且确保环氧树脂胶的厚度等于每片碳纤维复合材料片的厚度。 [0023] wherein the uniaxial stress-strain sensor chip 5 is the production process: First, a carbon fiber composite material sheet is cut into many small, the size of each piece is 1X 10mm2, with epoxy glue a carbon fiber composite material sheet together with an adhesive, and to ensure epoxy sheet thickness equal to the thickness of each sheet of carbon fiber composite material. 然后用环氧树脂胶将FBG沿z轴方向黏贴在碳纤维复合材料结构的一面。 FBG was then stuck on the z-axis direction side of a carbon fiber composite structure with epoxy glue. FBG应力传感芯片如图4所示。 Stress FBG sensor chip shown in FIG. FBG是外径为0.125mm的单模光纤,FBG的反射率近似为100%,3dB带宽为1.068nm。 FBG is 0.125mm outer diameter of single-mode fiber, the FBG reflectance of approximately 100%, 3dB bandwidth of 1.068nm. 由于应力应变传感芯片是基于光栅受到轴向应变作用时其波长发生相应变化,所以在制作应变传感器时要避免横向应变的影响,将制作好的应力传感芯片封装金属套管里,使其仅受z轴方向的应力变化。 Since the stress - strain sensor chip is based on a corresponding change in wavelength occurs when subjected to axial strain the grating effect, so in the production of a strain sensor to avoid the influence of the transverse strain sensor chip will make a good package stress in the metal sleeve, it stress only by the z-axis direction.

[0024]如图4所示,解调系统主机由宽带光源发射光信号,发射的信号经光耦合模块,再经光开关,分送至不同的通道,经光缆和分线盒沿传输通道传至各个位于待测井中的铠装光缆的终端-三维应力传感装置,由各个传感装置探测地应力的数据信息由光缆传回主机,经光开关的转接,使不同通道的信息被高灵敏,低噪声的光电接收器所接收,经解调器光电转换,将光信号变为电信号。 [0024] As shown in FIG. 4, the host system is demodulated by a broadband light source emitting light signals, an optical signal emitted coupling module, and then by the optical switch, distributed to the different channels, and through the cable junction box pass along the transmission path to the respective terminal located in the armored cable test wells - dimensional strain sensing means by the respective data sensing probe by a cable to the stress back to the host apparatus via the optical switch of the adapter, so that different information channels are sensitivity, low noise photo receiver the received, demodulated photoelectric conversion, an optical signal into electrical signals. 应力的参数信息经过数据采集、处理并进行存储,完成信号采集,处理,存储,报警等功能。 Stress parameter information through the data collection, processing and storage completion signal acquisition, processing, storage, alarm functions. 多个三维应力传感装置所测得的应力参数,将构成一个应力场分布的实时模型,从而为大规模的岩体工程连续监测提供可靠和有效的保证。 A plurality of three-dimensional stress sensor means measured the stress parameter, constituting a real-time model of the stress field, so as to provide an effective and reliable guarantee for continuous monitoring of large rock mass.

[0025]以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0025] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art who, without departing from the principles of the present invention, further improvements and modifications may be made, such modifications and modifications should be the scope of the present invention.

Claims (5)

  1. 1.基于光纤传感技术的钻孔式三维地应力监测传感装置,其特征在于,包括高压橡胶管(I)、高压橡胶连接管(2)、第一三分量探头(9)、第二三分量探头(10)、第三三分量探头(11)和传感装置端头⑶,第一三分量探头⑶、第二三分量探头(10)、第三三分量探头(11)通过双螺纹连接件(12)相连,并通过限位块(13)限定各自的相对位置,第一三分量探头(9)为轴向平面三分量探头,第二三分量探头(10)、第三三分量探头(11)为方向相差90°角的切向平面三分量探头,第一三分量探头(9)、第二三分量探头(10)、第三三分量探头(11)均由限位块(13)、铝合金基座(6)、三个单分量传感芯片(5)、单分量传感芯片支架⑵和传感装置保护套管(4)构成,单分量传感芯片支架(7)的数量为三个,呈夹角开设在所述传感装置保护套管(4)上,三个单分量传感芯片(5)通过光纤(3)以串联的方式安装在所述 1. Based on the three-dimensional borehole stress monitoring optical fiber sensing technology sensing means, characterized by comprising a high pressure rubber tube (the I), rubber high-pressure connection pipe (2), a first three-component probe (9), a second three-component sensor (10), a third three-component sensor (11) and the sensing means tip ⑶, the first three-component probe ⑶, the second three-component sensor (10), a third three-component sensor (11) by double threads connecting member (12) is connected, and defines a relative position of each stopper (13), a first three-component probe (9) is a three-component probe an axial plane, a second three-component sensor (10), a third three-component probe (11) in a direction difference angle of 90 ° to the tangential plane of the three-component sensor, a first three-component probe (9), a second three-component sensor (10), a third three-component sensor (11) by the stop ( 13), an aluminum alloy base (6), three single component sensor chip (5), a single component of the sensor chip holder and sensing device ⑵ protection sleeve (4), and a single sensor chip component holder (7) the number of three, in the form of an angle sensing means defines protective sleeve (4), three components of a single sensor chip (5) mounted in series through said optical fiber (3) 分量传感芯片支架(7)上,最上端的铝合金基座(6)上端通过高压橡胶连接管(2)连接有高压橡胶管⑴,最下端的铝合金基座(6)下端连接有传感装置端头⑶,所述单分量传感芯片(5)由若干碳纤维复合材料片(50)通过环氧树脂胶层(51)粘结而成,所述碳纤维复合材料片(50)的一面通过环氧树脂胶黏贴有光纤光栅(52),所述碳纤维复合材料片(50)与所述环氧树脂胶层(51)的厚度相同。 And the component sensor chip holder (7), the top of the aluminum base (6) connected to the upper end of the rubber through the high pressure pipe (2) is connected to a high-pressure rubber tube ⑴, the lowermost end of the aluminum alloy base (6) has a lower end connected to the sensing tip means ⑶, the single-component sensor chip (5) from the adhesive sheet by a plurality of carbon fiber composite material (50) by an epoxy resin adhesive layer (51), the carbon fiber composite material of the sheet (50) side by epoxy adhesive with a fiber grating (52), the carbon fiber composite material sheet (50) with the same thickness as the epoxy resin adhesive layer (51).
  2. 2.根据权利要求1所述的基于光纤传感技术的钻孔式三维地应力监测传感装置,其特征在于,所述的环氧树脂胶层采用耐高温环氧树脂。 The stress monitoring drilled three-dimensionally sensing means sensing technology based fiber according to claim 1, wherein said epoxy resin glue with high temperature epoxy.
  3. 3.根据权利要求1所述的基于光纤传感技术的钻孔式三维地应力监测传感装置,其特征在于,所述的夹角为60°或45°。 3. drilled three-dimensionally sensing means monitoring the stress on the optical fiber sensing technology according to claim 1, wherein said angle is 60 ° or 45 °.
  4. 4.根据权利要求1所述的基于光纤传感技术的钻孔式三维地应力监测传感装置,其特征在于,所述的光纤光栅(52)为外径为0.125mm的单模光纤,反射率近似为100%,3dB带宽为1.068nm。 The stress monitoring drilled three-dimensionally sensing means sensing technology based fiber according to claim 1, wherein said fiber grating (52) is an outer diameter of 0.125mm single-mode fiber, the reflection ratio is approximately 100%, 3dB bandwidth of 1.068nm.
  5. 5.根据权利要求1所述的基于光纤传感技术的钻孔式三维地应力监测传感装置,其特征在于,所述的单分量传感芯片⑶外包裹有金属套管。 The stress monitoring drilled three-dimensionally sensing means sensing technology based fiber according to claim 1, wherein said outer single sensor chip component ⑶ wrapped with metal sleeve.
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