阅读说明：本技术 一种光纤传感器 (Optical fiber sensor ) 是由 邢程 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种光纤传感器,属于光纤传感器领域,一种光纤传感器,包括安装梁主体,安装梁主体上开凿有多个均匀分布的安装槽,安装槽内卡接有一对夹板,一对夹板的两端之间连接有密封板,一对夹板之间设有光纤传感器主体,光纤传感器主体包括壳体,壳体内安装有处理器,壳体的内壁上铺设有防水层,防水层与处理器之间连接有固定板,壳体上插接四对插杆,可以实现通过在混凝土预制板内预埋多段安装有光纤传感器的钢梁,一方面提高预埋结构的强度,另一方面光纤传感器具有全面保护,有效防止震动和外界冲击对光纤传感器的伤害,其中探头也可快速更换,便于长时间工作。(The invention discloses an optical fiber sensor, belonging to the field of optical fiber sensors, and comprising an installation beam main body, wherein a plurality of uniformly distributed installation grooves are drilled on the installation beam main body, a pair of clamping plates are clamped in the installation grooves, a sealing plate is connected between two ends of the pair of clamping plates, the optical fiber sensor main body is arranged between the pair of clamping plates and comprises a shell, a processor is arranged in the shell, a waterproof layer is paved on the inner wall of the shell, a fixing plate is connected between the waterproof layer and the processor, four pairs of insertion rods are inserted on the shell, can realize installing optical fiber sensor's girder steel through pre-buried multistage in the concrete precast slab, improve pre-buried structure's intensity on the one hand, on the other hand optical fiber sensor has comprehensive protection, effectively prevents vibrations and external impact to optical fiber sensor's injury, wherein the probe also can quick replacement, is convenient for long-time work.)

1. An optical fiber sensor comprising a mounting beam body (1), characterized in that: the mounting beam comprises a mounting beam main body (1), a plurality of uniformly distributed mounting grooves are drilled in the mounting beam main body (1), a pair of clamping plates (2) is clamped in the mounting grooves, sealing plate sealing plates (7) are connected between two ends of the clamping plates (2), each clamping plate (2) comprises an arc-shaped shaping plate (201), an elastic bag (202) is fixedly connected to the inner wall of each arc-shaped shaping plate (201), a memory cotton ball (203) is filled in each elastic bag (202), a plurality of uniformly distributed micro air bags (204) are doped in each memory cotton ball (203), an optical fiber sensor main body (3) is arranged between the clamping plates (2), each optical fiber sensor main body (3) comprises a shell (301), a processor (302) is installed in each shell (301), a waterproof layer (303) is paved on the inner wall of each shell (301), and a fixing plate (304) is connected between each waterproof layer (303) and the processor (302), four pairs of inserted bars (4) of pegging graft on casing (301), inserted bar (4) include a pair of buffer beam (401), buffer beam (401) keep away from equal fixedly connected with push pedal (402) of one end of optical fiber sensor main part (3), two be connected with elastic connecting rod (403) between buffer beam (401), elastic connecting rod (403) are located optical fiber sensor main part (3), two the relative one end of buffer beam (401) is all opened the chisel and is had with elastic connecting rod (403) assorted slot, compression spring (404) have been cup jointed on elastic connecting rod (403), fixedly connected with optical fiber cable (5) are gone up in optical fiber sensor main part (3), be connected with sensor probe (6) on optical fiber cable (5), the top of splint (2) is opened the chisel and is had with sensor probe (6) assorted through-hole.

2. A fiber optic sensor according to claim 1, wherein: be equipped with in the mounting groove a pair of L type picture peg (8) with splint (2) assorted, the space of pegging graft between splint (2) and mounting groove is pegged graft in L type picture peg (8), the top joint of L type picture peg (8) is connected with and laps with splint (2) phase-match.

3. A fiber optic sensor according to claim 1, wherein: the bottom fixedly connected with and optical fiber sensor main part (3) assorted support frame (9) of mounting groove, support frame (9) are the trapezoidal steelframe of bar, it has a plurality of through wires holes to cut on support frame (9).

4. A fiber optic sensor according to claim 1, wherein: fixedly connected with threading pipe between a plurality of mounting grooves on installation roof beam main part (1), the equal fixedly connected with seal block in both ends of threading pipe.

5. A fiber optic sensor according to claim 1, wherein: the memory cotton ball (203) is made of porous fiber materials, the surface of the memory cotton ball (203) is coated with a hydrolysis film, a plurality of gypsum particles which are uniformly distributed are fixedly connected in the memory cotton ball (203), a thermosetting resin layer is paved on the inner wall of the elastic bag (202), and a water-soluble film is paved on the thermosetting resin layer.

6. A fiber optic sensor according to claim 1, wherein: the elastic bag is characterized in that one end, close to the push plate (402), of the elastic bag (202) is fixedly connected with and paved with a hook surface layer, one end, close to the elastic bag (202), of the elastic bag (3) is paved with a flexible silica gel layer, and a velvet surface layer matched with the hook surface layer is paved on the flexible silica gel layer.

7. A fiber optic sensor according to claim 1, wherein: the sensor probe (6) comprises a probe main body (601), and the upper end and the lower end of the probe main body (601) are respectively connected with a sealing ring (602) and a wiring ring (603) in a connecting mode.

8. A fiber optic sensor according to claim 1, wherein: the optical fiber cable (5) is a waterproof cable, and the optical fiber cable (5) is compressed between the clamping plate (2) and the optical fiber sensor main body (3) in a spring shape.

9. A fiber optic sensor according to claim 1, wherein: the construction method comprises the following steps:

s1, firstly, splicing and fixing the clamping plate (2) and the optical fiber sensor main body (3);

s2, clamping the spliced and molded clamping plate (2) and the optical fiber sensor main body (3) into the mounting beam main body (1);

s3, inserting (5) at two ends of the splint (2) to fix the splint (2);

s4, integrally installing the installation beam main body (1) into a prefabricated plate mould, and enabling the steel bars in the mould to penetrate through the installation beam main body (1) so as to fix the installation beam main body (1);

s5, pouring concrete of the precast slab mould to cover the plywood (2) with the concrete.

10. A fiber optic sensor according to claim 9, wherein: the thickness of the concrete covering the clamping plates (2) is equal to the height of the part, protruding out of the upper surface of the beam main body (1), of the clamping plates (2), and the cover plates protrude out of the surface of the concrete plate for forming.

Technical Field

The invention relates to the field of optical fiber sensors, in particular to an optical fiber sensor.

Background

The operation environment of the buried thermal pipeline is complex, and the occasions of water, corrosion, high temperature, high stress and strong electromagnetic field exist. In the distributed optical fiber temperature and vibration measurement technology, the optical fiber is a sensor and a signal transmission medium, so that the selection of a proper sensing optical fiber is very important for the complex environment of the heat distribution pipeline. The carbon sealing coated optical fiber used for submarine cables at present can be applied to occasions with a large amount of water, hydrogen, corrosion, high temperature, high pressure, high stress and strong electromagnetic field, such as power plants, the seabed, oil fields, natural gas wells and the like, and replaces the traditional electronic sensing technology with the optical fiber sensing technology. High strength carbon coated optical fibers are formed by depositing carbon on the surface of the optical fiber during the drawing process. Then coating the ultraviolet curing coating, and finishing the whole process in the wire drawing process. The novel single-mode optical fiber has the characteristics of corrosion resistance, high temperature resistance, high pressure resistance, fatigue resistance, oxygen loss resistance and the like.

The optical fiber sensing technology is widely applied to the fields of petroleum, electric power, dam safety and the like as a technology with wide prospect, solves the problems of various industries, and can be rapidly popularized in the fields of heat, water conservancy, even aviation and automobiles along with the deepening of the research of the optical fiber sensing technology.

The main line of the buried system is provided with a plurality of optical fiber sensors to monitor the temperature change and vibration information of a mechanical device in the thermodynamic system in real time, and the optical fiber sensors are often buried in a structural plate or a structural pipe of the thermodynamic system in advance to prevent leakage points of pressure excavation damage of the thermodynamic pipeline caused by mechanical equipment construction or other accidents from being positioned.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an optical fiber sensor, which can improve the strength of an embedded structure on one hand and can effectively prevent the damage of vibration and external impact on the optical fiber sensor on the other hand by embedding a plurality of sections of steel beams provided with the optical fiber sensor in a concrete precast slab, wherein a probe can be quickly replaced, and the long-time work is facilitated.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An optical fiber sensor comprises a mounting beam body, wherein a plurality of uniformly distributed mounting grooves are formed in the mounting beam body, a pair of clamping plates are clamped in the mounting grooves, a sealing plate is connected between two ends of the pair of clamping plates, each clamping plate comprises an arc-shaped shaping plate, an elastic bag is fixedly connected to the inner wall of each arc-shaped shaping plate, a memory cotton ball is filled in the elastic bag, a plurality of uniformly distributed micro air bags are doped in the memory cotton ball, an optical fiber sensor body is arranged between the pair of clamping plates, the optical fiber sensor body comprises a shell, a processor is arranged in the shell, a waterproof layer is paved on the inner wall of the shell, a fixing plate is connected between the waterproof layer and the processor, four pairs of insert rods are inserted in the shell and comprise a pair of buffer rods, and a push plate is fixedly connected to one end, away from the optical fiber sensor body, of each buffer rod, two be connected with the elastic connecting rod between the buffer bar, the elastic connecting rod is located the optical fiber sensor main part, two the relative one end of buffer bar all opens the chisel have with elastic connecting rod assorted slot, compression spring has been cup jointed on the elastic connecting rod, fixedly connected with fiber optic cable in the optical fiber sensor main part, be connected with the sensor probe on the fiber optic cable, the top of splint open the chisel have with sensor probe assorted through-hole, can realize installing fiber optic sensor's girder steel through pre-buried multistage in the concrete precast slab, improve pre-buried structure's intensity on the one hand, on the other hand fiber optic sensor has comprehensive protection, effectively prevents vibrations and external impact to the injury of optical fiber sensor, wherein the probe is quick replacement also, is convenient for long-time work.

Further, be equipped with a pair of L type picture peg with closing plate assorted in the mounting groove, the space of L type picture peg grafting between splint and mounting groove, the top card of L type picture peg be connected with splint phase-match apron, mark the installation roof beam main part through the fixed height of adjustment L type picture peg and pour the cement height, prevent to pour cement and do not have the sealed shrouding top, and L type picture peg will still can be fixed firm with the closing plate.

Further, the bottom fixedly connected with and the optical fiber sensor main part assorted support frame of mounting groove, the support frame is the trapezoidal steelframe of bar, it has a plurality of through wires holes to cut on the support frame, makes things convenient for the electric wire line between a plurality of installation roof beam main parts.

Further, fixedly connected with threading pipe between a plurality of mounting grooves in the installation roof beam main part, the equal fixedly connected with seal block in both ends of threading pipe.

Further, the memory cotton ball is made by porous fiber material, and the surface cladding of memory cotton ball has the hydrolization membrane, a plurality of evenly distributed's of memory cotton ball internal fixation connection gypsum granule, the inner wall upper berth of elasticity capsule is equipped with the thermosetting resin layer, the thermosetting resin layer upper berth is equipped with water-soluble membrane, absorbs the moisture from prefabricated construction infiltration splint through the memory cotton ball, and when the structure infiltration was too much, gypsum granule in a plurality of memory cotton balls and water reaction are exothermic, and then make thermosetting resin layer heat hardening, make thermosetting resin layer have water proof effect, and the solidification thermosetting resin layer consolidate the elasticity capsule, prevent that moisture from piling up and propping broken elasticity capsule.

Furthermore, the one end fixedly connected with that the elastic bag is close to the push pedal is laid and is colluded the surface course, the flexible silica gel layer has been laid to the one end that the push pedal is close to the elastic bag, flexible silica gel layer upper berth be equipped with collude surface course assorted matte layer, assist the push pedal through colluding the surface course and fix, prevent that the optical fiber sensor main part is whole not hard up.

Furthermore, the sensor probe comprises a probe main body, the upper end and the lower end of the probe main body are respectively connected with a sealing ring and a wiring ring in a connecting mode, a gap between the sensor probe and the sealing plate is sealed through the sealing ring, and the sensor probe is connected with the optical fiber cable through the wiring ring clamped between the pair of sealing plates.

Furthermore, the optical fiber cable is a waterproof cable, and the optical fiber cable is compressed between the clamping plate and the optical fiber sensor main body in a spring shape, so that a technician can pull out or insert the sensor probe into the clamping plate according to the requirement.

The construction method of the optical fiber sensor comprises the following steps:

s1, firstly, splicing and fixing the clamp plate and the optical fiber sensor main body;

s2, clamping the spliced and molded clamping plate and the optical fiber sensor main body into the mounting beam main body;

s3, fixing the clamping plate by L-shaped inserting plates at two ends of the clamping plate;

s4, integrally installing the installation beam main body into the prefabricated plate mould, and enabling the steel bars in the mould to penetrate through the installation beam main body so as to fix the installation beam main body;

s5, the precast slab mold is concreted so that the plywood is covered with concrete.

Furthermore, the thickness of the concrete covering the clamping plate is equal to the height of the part, protruding out of the upper surface of the beam main body, of the clamping plate, and the cover plate protrudes out of the surface of the concrete plate for forming, so that the situation that the top end of the clamping plate is covered due to the fact that the concrete is not poured too thick is guaranteed, and the sensor probe is prevented from being covered.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can realize installing optical fiber sensor's girder steel through pre-buried multistage in the concrete precast slab, improves pre-buried structure's intensity on the one hand, and on the other hand optical fiber sensor has comprehensive protection, effectively prevents vibrations and external impact to optical fiber sensor's injury, and wherein the probe also can quick replacement, the long-time work of being convenient for.

(2) Be equipped with a pair of L type picture peg with closing plate assorted in the mounting groove, the space of L type picture peg grafting between splint and mounting groove, the top card of L type picture peg be connected with splint phase-match apron, the fixed height through adjustment L type picture peg marks the installation roof beam main part and pours the cement height, prevents to pour cement and does not have the sealing plate top, and L type picture peg will still can be fixed firm with the closing plate.

(3) Memory cotton balls are made by porous fiber material, and the surface cladding of memory cotton balls has the hydrolization membrane, a plurality of evenly distributed's of memory cotton ball internal fixation connected with gypsum granule, the inner wall upper berth of elastic bag is equipped with the thermosetting resin layer, the thermosetting resin layer upper berth is equipped with water-soluble membrane, absorb the moisture from prefabricated construction infiltration splint through memory cotton balls, when the structure infiltration is too much, gypsum granule in a plurality of memory cotton balls and water reaction are exothermic, and then make the thermosetting resin layer be heated hardening, make the thermosetting resin layer have water proof effect, and the solidification thermosetting resin layer consolidate the elastic bag, prevent that moisture from piling up and propping open elastic bag.

(4) The one end fixedly connected with that the elastic bag is close to the push pedal with laid and collude the surface course, the flexible silica gel layer has been laid to the one end that the push pedal is close to the elastic bag, flexible silica gel layer upper berth be equipped with collude surface course assorted matte layer, assist the boost plate through colluding the surface course and fix, prevent that the optical fiber sensor main part is whole not hard up.

(5) The sensor probe comprises a probe main body, the upper end and the lower end of the probe main body are respectively connected with a sealing ring and a wiring ring in a connecting mode, a gap between the sensor probe and the sealing plate is sealed through the sealing ring, and the sensor probe is connected with an optical fiber cable through the wiring ring clamped between the pair of sealing plates.

(6) The concrete thickness that covers the splint equals with the partial height of splint outstanding installation roof beam main part upper surface, and the apron is outstanding to be used for fashioned concrete slab surface, guarantees that the concrete can not pour the excess thickness and cover the splint top, prevents that the sensor probe from being covered.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a partial perspective view of the fiber optic sensor body of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the structure at B in FIG. 3;

FIG. 6 is a side cross-sectional view of the present invention;

FIG. 7 is a top view of the present invention;

FIG. 8 is a side view of the present invention after placement of concrete;

FIG. 9 is a schematic view of the present invention installed into the thickness of a panel;

FIG. 10 is a process flow diagram of the present invention.

The reference numbers in the figures illustrate:

1 mounting beam main body, 2 clamping plates, 201 arc-shaped shaping plates, 202 elastic bags, 203 memory cotton balls, 204 micro air bags, 3 optical fiber sensor main bodies, 301 shells, 302 processors, 303 waterproof layers, 304 fixing plates, 4 insertion rods, 401 buffer rods, 402 push plates, 403 elastic connecting rods, 404 compression springs, 5 optical fiber cables, 6 sensor probes, 7 sealing plates, 8L-shaped insertion plates and 9 supporting frames.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, an optical fiber sensor includes a mounting beam body 1, a plurality of mounting grooves uniformly distributed are formed on the mounting beam body 1, a threading pipe is fixedly connected between the mounting grooves on the mounting beam body 1, sealing blocks are fixedly connected to both ends of the threading pipe, a pair of clamping plates 2 are clamped in the mounting grooves, a sealing plate 7 is connected between both ends of the clamping plates 2, the clamping plates 2 include an arc-shaped fixing plate 201, an elastic bag 202 is fixedly connected to the inner wall of the arc-shaped fixing plate 201, a memory cotton ball 203 is filled in the elastic bag 202, a plurality of uniformly distributed micro air bags 204 are doped in the memory cotton ball 203, the memory cotton ball 203 is made of a porous fiber material, a hydrolysis film is coated on the surface of the memory cotton ball 203, a plurality of uniformly distributed gypsum particles are fixedly connected to the memory cotton ball 203, a thermosetting resin layer is laid on the inner wall of the elastic bag 202, the thermosetting resin layer upper berth is equipped with water-soluble membrane, absorbs the moisture that permeates splint 2 from prefabricated construction through memory cotton ball 203, and when the structure infiltration was too much, the gypsum granule in a plurality of memory cotton balls 203 and water reaction are exothermic, and then make the thermosetting resin layer be heated hardening, make the thermosetting resin layer have water proof effect, and the solidification thermosetting resin layer consolidate elastic bag 202, prevent that moisture from piling up and support broken elastic bag 202. Elastic bag 202 is close to the one end fixedly connected with of 3 and has laid and collude the surface course, and flexible silica gel layer has been laid to the one end that push pedal 402 is close to elastic bag 202, and flexible silica gel layer upper berth be equipped with collude surface course assorted fine hair surface course, through colluding the surface course supplementary push pedal 402 fixed, prevent that optical fiber sensor main part 3 is whole not hard up.

Referring to fig. 1-5, an optical fiber sensor body 3 is disposed between a pair of clamping plates 2, the optical fiber sensor body 3 includes a housing 301, a processor 302 is installed in the housing 301, a waterproof layer 303 is laid on an inner wall of the housing 301, a fixing plate 304 is connected between the waterproof layer 303 and the processor 302, four pairs of insertion rods 4 are inserted into the housing 301, each insertion rod 4 includes a pair of buffer rods 401, a push plate 402 is fixedly connected to one end of each buffer rod 401 far from the optical fiber sensor body 3, an elastic connecting rod 403 is connected between the two buffer rods 401, the elastic connecting rod 403 is located in the optical fiber sensor body 3, slots matched with the elastic connecting rods 403 are drilled at opposite ends of the two buffer rods 401, a compression spring 404 is sleeved on the elastic connecting rod 403,

referring to fig. 1-4, an optical fiber cable 5 is fixedly connected to an optical fiber sensor main body 3, a sensor probe 6 is connected to the optical fiber cable 5, a through hole matched with the sensor probe 6 is drilled at the top end of a clamping plate 2, a pair of L-shaped inserting plates 8 matched with a sealing plate 7 are arranged in a mounting groove, the L-shaped inserting plates 8 are inserted into a gap between the clamping plate 2 and the mounting groove, a cover plate matched with the clamping plate 2 is connected to the top end of the L-shaped inserting plates 8 in a clamping manner, the height of the pouring cement on the mounting beam main body 1 is calibrated by adjusting the fixed height of the L-shaped inserting plate 8, the pouring cement is prevented from submerging the top end of the sealing plate 7, and L type picture peg 8 will still be with the bottom fixedly connected with of the firm mounting groove of closing plate 7 fixed and optical fiber sensor main part 3 assorted support frame 9, and support frame 9 is the trapezoidal steelframe of bar, cuts a plurality of through wires holes on the support frame 9, makes things convenient for the electric wire line between a plurality of installation roof beam main parts 1.

Referring to fig. 3 and 5, the sensor probe 6 includes a probe body 601, a sealing ring 602 and a wiring ring 603 are respectively connected to the upper and lower ends of the probe body 601 in a connecting manner, a gap between the sensor probe 6 and the sealing plate 7 is sealed by the sealing ring 602, and the sensor probe 6 and the optical fiber cable 5 are connected by the wiring ring 603 clamped between the pair of sealing plates 7. The optical fiber cable 5 is a waterproof cable, the optical fiber cable 5 is compressed between the clamping plate 2 and the optical fiber sensor main body 3 in a spring shape, and a technician can pull out or insert the sensor probe into the clamping plate 2 according to the requirement.

Referring to fig. 5-10, a fiber sensor is constructed by the following steps:

s1, the clamp plate 2 and the optical fiber sensor body 3 are first spliced and fixed.

S2, the splicing-molded clamping plate 2 and the optical fiber sensor main body 3 are clamped into the mounting beam main body 1,

s3, fixing the clamping plate 2 by L-shaped inserting plates 8 at two ends of the clamping plate 2;

s4, integrally installing the installation beam main body 1 into a prefabricated plate mould, and enabling the steel bars in the mould to penetrate through the installation beam main body 1 so as to fix the installation beam main body 1;

and S5, pouring concrete of the prefabricated plate mould to enable the clamping plate 2 to be covered by the concrete, wherein the thickness of the concrete covering the clamping plate 2 is equal to the height of the part of the clamping plate 2 protruding out of the upper surface of the installation beam main body 1, the cover plate protrudes out of the surface of the formed concrete plate to ensure that the top end of the clamping plate 2 is covered by the concrete without pouring too thick, the sensor probe 6 is prevented from being covered, and finally, the installation beam main body 1 formed by pouring is placed into the mould of the prefabricated structure to pour the prefabricated structure.

Compared with the existing optical fiber sensor directly installed in the embedded structure, the scheme can realize that before the embedded part is prepared, the optical fiber sensor is embedded into the installation beam main body 1, the embedded optical fiber sensor installation beam main body 1 is provided with a larger buffer space, the heat dissipation efficiency and the anti-vibration capability of the optical fiber sensor are ensured, the protection capability of the optical fiber sensor when being acted by external force is effectively prevented, the installation beam main body 1 integrally provided with a stable structure is heated to pour the prefabricated plate when the prefabricated plate is prepared, the optical fiber sensor is directly embedded into the prefabricated structure in the prior art, the local strength of the prefabricated structure is easily changed, and the integral strength of the prefabricated structure is influenced, in addition, the installation beam main body 1 is used as a primary carrier of the optical fiber sensor, and the clamping plate 2 and the sealing plate 7 on the optical fiber sensor and the installation beam main body 1 form the integral structure through concrete pouring, the integral installation beam main body 1 is pre-embedded into a mold of the prefabricated structure, so that the poured prefabricated structure is reinforced by the installation beam main body 1, the strength of the prefabricated structure is ensured, and meanwhile, the optical fiber sensor pre-embedded into the prefabricated structure is comprehensively protected.

Can realize installing optical fiber sensor's girder steel through pre-buried multistage in the concrete precast slab, improve pre-buried structure's intensity on the one hand, on the other hand optical fiber sensor has comprehensive protection, effectively prevents vibrations and external impact to optical fiber sensor's injury, wherein the probe also can quick replacement, is convenient for long-time work.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.