KR20000074372A - Optical sensor for measuring deformation of institution - Google Patents

Optical sensor for measuring deformation of institution Download PDF

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Publication number
KR20000074372A
KR20000074372A KR1019990018274A KR19990018274A KR20000074372A KR 20000074372 A KR20000074372 A KR 20000074372A KR 1019990018274 A KR1019990018274 A KR 1019990018274A KR 19990018274 A KR19990018274 A KR 19990018274A KR 20000074372 A KR20000074372 A KR 20000074372A
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KR
South Korea
Prior art keywords
optical fiber
optical
deformation
coating member
facility
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KR1019990018274A
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Korean (ko)
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KR100301775B1 (en
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서기원
조성칠
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강병호
대우통신 주식회사
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Priority to KR1019990018274A priority Critical patent/KR100301775B1/en
Publication of KR20000074372A publication Critical patent/KR20000074372A/en
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Publication of KR100301775B1 publication Critical patent/KR100301775B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure

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  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE: An optical deformation sensor is provided to prevent an optical fiber from being damaged for a long term by coating a polymer material having a relatively high elasticity around the optical fiber, and improve measuring sensitivity of minute deformation of an establishment owing to a pressing protrusion for pressing a core of the optical fiber on an inner peripheral surface of the coating material. CONSTITUTION: An optical deformation sensor in which an end of an optical fiber(20) is connected to a light source(40) and the other end is connected to a loss measuring device(50) for measuring deformation degree of buildings, tunnels, bridges, dams and the like, includes a pair of fixing elements(10) fixedly mounted at predetermined positions of an establishment separately from each other, a coating material(21) fixed mounted to the fixing elements to be applied with tension and having at least one pressing protrusion on an inner periphery to be extended longitudinally and radially according to deformation of the establishment, and an optical fiber core(25) fitted into the coating material or coated by the coating material to be pressed by the pressing protrusion, wherein tension and side pressure are applied to the optical fiber ribbon by the fixing elements, which are alienated from each other, and an optical loss is generated in proportion to the side pressure while a predetermined optical signal is passing through the optical fiber, so that the deformation of the establishment is precisely measured by sensing the optical loss.

Description

광변형센서{Optical sensor for measuring deformation of institution}Optical sensor for measuring deformation of institution

본 발명은 광변형센서에 관한 것으로서, 더욱 상세하게는 건물, 터널, 교량, 댐 등의 시설물에 설치되어 시설물이 변형되는 정도를 측정하는 광변형센서에 관한 것이다.The present invention relates to an optical deformation sensor, and more particularly, to an optical deformation sensor installed in a facility such as a building, a tunnel, a bridge, a dam, and measuring a degree of deformation of the facility.

일반적으로 광변형센서는 지하철이나 저장터널 등의 지하시설물이나, 교량, 건물, 도로의 터널 등에 설치되어 시공단계나 완공 후 시설물 관리시에 지속적으로 시설물의 변형 정도를 측정하여 효과적으로 안전관리 할 수 있도록 하기 위한 계측장비이다.In general, the optical strain sensor is installed in underground facilities such as subways and storage tunnels, or in tunnels of bridges, buildings, and roads. Measurement equipment for

도 1은 종래의 광변형센서를 도시한 사시도이고, 도 2는 종래의 광변형센서를 구성하는 광섬유의 가압상태를 도시한 단면도이다.1 is a perspective view showing a conventional optical strain sensor, Figure 2 is a cross-sectional view showing a pressing state of the optical fiber constituting the conventional optical strain sensor.

이를 참조하면, 상기 광변형센서는 시설물의 변형 정도를 측정하고자 하는 위치에 일정 간격 이격되도록 고정 설치된 한 쌍의 고정부재(10)와, 상기 한 쌍의 고정부재(10)에 소정의 인장력을 받도록 나선형으로 꼬여져 설치된 3가닥의 광섬유(60)와, 상기 광섬유(60)의 일측단에 연결되어 설치된 광원(40)과, 상기 광섬유(60)의 타측단에 연결되어 설치된 손실측정기(50)로 이루어진다.Referring to this, the optical deformation sensor is a pair of fixing member 10 and fixed to be spaced at a predetermined interval at a position to measure the degree of deformation of the facility, and to receive a predetermined tensile force on the pair of fixing member (10). Spirally twisted three optical fibers 60, the light source 40 is connected to one end of the optical fiber 60, and the loss measuring instrument 50 is connected to the other end of the optical fiber 60 Is done.

이때, 상기 3가닥의 광섬유(60)는 중심의 광섬유 외주면에 두 가닥의 광섬유가 서로 반대방향으로부터 나선형으로 꼬여져 일정한 인장력이 발생되도록 고정부재(10)에 설치된다.At this time, the three strands of the optical fiber 60 is installed on the fixing member 10 on the outer peripheral surface of the center of the two strands of the optical fiber twisted spirally from the opposite direction to generate a constant tensile force.

이때, 상기 광섬유(60)는 도 2에서와 같이 중심에 굴절률이 높은 코어층(61)이 형성되고, 상기 코어층(61) 둘레면에는 코어층(61)에 비해 굴절률이 작은 클래드층(63)이 마련되며, 상기 클래드층(63) 외표면에는 소정 두께의 특수 코팅층(65)이 형성된다.In this case, the optical fiber 60 has a core layer 61 having a high refractive index at the center, as shown in FIG. 2, and a cladding layer 63 having a smaller refractive index than the core layer 61 on the circumferential surface of the core layer 61. ) Is provided, and a special coating layer 65 having a predetermined thickness is formed on an outer surface of the clad layer 63.

따라서, 상기 시설물에 크랙(crack)이나 부분적인 파단이 발생될 경우 상기 시설물에 설치된 고정부재(10)가 서로 이격되는 방향으로 벌어지게 되므로, 이러한 한 쌍의 고정부재(10)에 설치된 광섬유(60)상에는 시설물의 변형량에 대응되는 인장력이 발생된다.Therefore, when a crack or partial breakage occurs in the facility, the fixing members 10 installed in the facility are opened in a direction in which they are spaced apart from each other, and thus the optical fiber 60 installed in the pair of fixing members 10 is fixed. )) Tensile force corresponding to the amount of deformation of the facility is generated.

이때, 상기 광섬유(60)는 3가닥이 나선형으로 꼬여져 서로 밀착되도록 설치되므로, 이러한 3가닥의 광섬유(60)가 서로 연접된 부분에는 상기 인장력에 대응되는 소정의 측압이 발생되고, 이러한 측압은 특수 코팅층(65)을 통해 그대로 내부의 클래드층(63)과 코어층(61)에 전달되어 클래드층(63)과 코어층(61)을 찌그러진 모양으로 변형시켜 광원(40)으로부터 전송되는 광신호를 대응되는 양으로 누설되도록 하므로써, 원거리에 위치된 손실측정기(50)에 의해 시설물의 변형 정도를 정확하게 측정할 수 있게 된다.At this time, the optical fiber 60 is installed so that the three strands are twisted spirally close to each other, a predetermined side pressure corresponding to the tensile force is generated in the portion where the three strands of the optical fiber 60 are connected to each other, the side pressure is The optical signal transmitted from the light source 40 by being transferred to the cladding layer 63 and the core layer 61 inside as it is through the special coating layer 65 and transforming the cladding layer 63 and the core layer 61 into a crushed shape. By leaking in a corresponding amount, it is possible to accurately measure the degree of deformation of the facility by the loss measuring device 50 located at a remote location.

그러나, 상술한 광변형센서의 광섬유(60)상에는 인장력에 비례하여 발생되는 측압이 그대로 내부의 코어(61)와 클래드층(63)에 전달되어야 하므로, 상기 광섬유(60)가 기존 폴리머 재질의 피복층에 의해 코팅된 경우에는 상기 측압이 피복층에 의해 흡수되어 내부로 전달되지 않기 때문에 이러한 측압이 피복층에 의해 흡수되지 않고 그대로 내부의 클래드층(63)과 코어층(61)에 전달되도록 소정 두께의 금속으로된 특수 코팅층(65)으로 피복되어야 한다.However, on the optical fiber 60 of the optical deformation sensor described above, the side pressure generated in proportion to the tensile force should be transmitted to the core 61 and the cladding layer 63 as it is, so that the optical fiber 60 is coated with an existing polymer material. In the case of coating by the coating, since the side pressure is absorbed by the coating layer and is not transmitted to the inside, the side pressure is not absorbed by the coating layer, and the metal having a predetermined thickness so as to be transmitted to the clad layer 63 and the core layer 61 therein. Should be covered with a special coating (65).

따라서, 상기 광섬유(60)의 특수 코팅층(65)을 형성하기 위해서는 기존의 광섬유 제조설비를 그대로 사용할 수 없으며, 별도의 특수 코팅설비를 구비하여야 하므로, 제조설비가 증가되고, 제조비용이 증가되는 단점이 있다.Accordingly, in order to form the special coating layer 65 of the optical fiber 60, existing optical fiber manufacturing equipment cannot be used as it is, and a separate special coating equipment must be provided, so that the manufacturing equipment is increased and the manufacturing cost is increased. There is this.

또한, 상기 광변형센서를 통해 시설물의 정확한 변형정도를 측정하기 위해서는 3가닥의 광섬유(60)가 일정한 피치의 나선형으로 꼬여져 설치되어야 하므로, 고가인 나선형 스트렌딩((stranding)설비가 필요하게 된다.In addition, in order to measure the exact degree of deformation of the facility through the optical strain sensor, since three optical fibers 60 are to be twisted in a spiral of a constant pitch, expensive spiral stranding equipment is required. .

또한, 상기 광변형센서는 3가닥의 광섬유(60)가 외부에 노출된 상태로 설치되고, 상기 특수 피복층(65)이 165㎛의 비교적 얇은 두께로 코팅되므로, 광섬유(60)가 훼손되기 쉬우며, 장기간 사용할 때는 센서의 신뢰성이 저하되는 문제점이 있다.In addition, the optical deformation sensor is installed in a state in which three optical fibers 60 are exposed to the outside, and the special coating layer 65 is coated with a relatively thin thickness of 165㎛, the optical fiber 60 is easily damaged In case of prolonged use, the reliability of the sensor is deteriorated.

본 발명의 주된 목적은 광섬유를 나선형으로 꼬아서 배치하기 위한 별도의 스트렌딩 설비가 불필요할 뿐만 아니라 광섬유를 소정 두께의 피복층으로 보호하는 구조를 형성하므로써, 장기적인 신뢰성이 우수한 광변형센서를 제공하는 것이다.The main object of the present invention is to provide an optical strain sensor with excellent long-term reliability by forming a structure that protects the optical fiber with a coating layer having a predetermined thickness, as well as eliminating the need for a separate stranding device for spirally arranging the optical fiber. .

또한, 본 발명의 다른 목적은 광섬유 심선 둘레면에 내부의 광섬유 심선을 가압하는 가압돌기가 마련된 피복부재를 형성하므로써, 시설물에 비교적 작은 변형이 발생될 경우에도 측정 감도가 우수한 광변형센서를 제공하는 것이다.In addition, another object of the present invention is to form a coating member provided with a pressing projection for pressing the inner fiber core wire in the peripheral surface of the optical fiber core wire, to provide an optical deformation sensor excellent in the measurement sensitivity even when relatively small deformation occurs in the facility will be.

도 1은 종래의 광변형센서를 도시한 사시도,1 is a perspective view showing a conventional optical deformation sensor,

도 2는 종래의 광변형센서를 구성하는 광섬유의 가압상태를 도시한 단면도,Figure 2 is a cross-sectional view showing a pressing state of the optical fiber constituting the conventional optical deformation sensor,

도 3은 본 발명에 따른 광변형센서의 사시도,3 is a perspective view of an optical deformation sensor according to the present invention;

도 4는 본 발명을 구성하는 광섬유의 변형예를 도시한 단면도,4 is a sectional view showing a modification of the optical fiber constituting the present invention;

도 5는 본 발명을 구성하는 광섬유의 가압상태를 도시한 단면도이다.5 is a cross-sectional view showing a pressing state of the optical fiber constituting the present invention.

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

10 : 고정부재 20 : 광섬유10: fixing member 20: optical fiber

21 : 피복부재 23 : 가압돌기21: covering member 23: pressing projection

25 : 광섬유심선 27 : 코어층25: optical fiber core 27: core layer

28 : 클래드층 29 : 코팅층28: cladding layer 29: coating layer

30 : 광섬유 40 : 광원30: optical fiber 40: light source

50 : 손실측정기50: loss measuring instrument

본 발명은 일측단에 광원이 연결되고, 타측단에는 손실측정기가 연결되어 건물, 터널, 교량, 댐 등의 시설물 변형 정도를 측정하는 광변형센서에 있어서, 상기 시설물의 소정 위치에 고정 설치되는 한 쌍의 고정부재와, 상기 한 쌍의 고정부재에 소정의 장력을 받도록 고정 설치되고, 내주면에는 적어도 하나의 가압돌기가 마련되어 상기 시설물이 변형됨에 따라 길이방향 및 반경방향으로 연신되는 피복부재와, 상기 피복부재의 가압돌기에 의해 소정의 압력으로 눌려지도록 피복부재의 내부에 끼워져 설치되거나 상기 피복부재에 의해 소정의 두께로 피복된 광섬유심선으로 이루어진 특징을 갖는다.In the present invention, a light source is connected to one end of the light source, and a loss measuring device is connected to the other end of the light distortion sensor for measuring the degree of deformation of a facility such as a building, a tunnel, a bridge, a dam, and so on. A pair of fixing members and a fixing member fixed to the pair of fixing members and provided with at least one pressing protrusion on an inner circumferential surface thereof and extending in a longitudinal direction and a radial direction as the facility is deformed, and It is characterized in that the optical fiber core wire is installed in the interior of the coating member so as to be pressed at a predetermined pressure by the pressing projection of the coating member or is coated with a predetermined thickness by the coating member.

본 발명에서 상기 피복부재의 가압돌기는 내주면을 따라 그 단면이 비대칭형으로 연장 형성되거나, 나선형으로 내주면을 따라 연장 형성된 특징을 갖는다.In the present invention, the pressing projection of the coating member has a characteristic that the cross section is formed asymmetrically along the inner circumferential surface, or is formed along the inner circumferential surface in a helical manner.

본 발명에서 상기 피복부재는 비교적 탄성영률이 큰 폴리머재질로 이루어진 특징을 갖는다.In the present invention, the coating member has a feature made of a polymer material having a relatively high Young's modulus.

이하, 본 발명의 바람직한 실시예에 대해 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings for a preferred embodiment of the present invention will be described in detail.

도 3은 본 발명에 따른 광변형센서의 사시도이고, 도 4는 본 발명을 구성하는 광섬유의 변형예를 도시한 단면도이다.3 is a perspective view of an optical deformation sensor according to the present invention, Figure 4 is a cross-sectional view showing a modification of the optical fiber constituting the present invention.

이를 참조하면, 상기 광변형센서는 시설물의 변형정도를 측정하고자 하는 소정 위치에 일정 간격 이격되도록 고정 설치된 한 쌍의 고정부재(10)와, 상기 한 쌍의 고정부재(10)에 소정의 인장력을 받도록 고정 설치된 광섬유(20)와, 상기 광섬유(20)의 일측단에 연결되어 설치된 광원(40)과, 상기 광섬유(20)의 타측단에 연결되어 설치된 손실측정기(50)로 이루어진다.Referring to this, the optical deformation sensor is applied to a pair of fixing member 10 and the pair of fixing member 10 fixedly installed to be spaced apart at a predetermined interval to a predetermined position to measure the degree of deformation of the facility, the pair of fixing members (10). It consists of an optical fiber 20 fixed to receive, a light source 40 is connected to one end of the optical fiber 20, and a loss measuring instrument 50 is connected to the other end of the optical fiber 20.

이때, 상기 광섬유(20)는 그 중심부에 굴절률이 높은 코어층(27)과, 상기 코어층(27) 외주면에는 코어층(27)보다 굴절률이 낮은 클래드층(28)과, 상기 클래드층(28) 위에 UV 코팅층(29)이 형성된 광섬유심선(25)이 마련되며, 상기 광섬유심선(25)의 외주면에는 비교적 탄성영률이 큰 폴리머재질의 피복부재(21)로 피복되어 상기 한 쌍의 고정부재(10)에 고정 설치된다.In this case, the optical fiber 20 has a core layer 27 having a high refractive index at its center, a cladding layer 28 having a lower refractive index than the core layer 27, and a cladding layer 28 on the outer circumferential surface of the core layer 27. The optical fiber core 25 having the UV coating layer 29 formed thereon is provided on the outer circumferential surface of the optical fiber core wire 25 and is coated with a coating member 21 made of a polymer material having a relatively high Young's Young's modulus. 10) is fixedly installed.

이때, 상기 피복부재(21)의 내주면에는 광섬유심선(25)의 외주면에 소정의 탄성력으로 밀착되는 단면이 삼각형인 다수개의 가압돌기(23)가 마련되는 데, 상기 가압돌기(23)는 광섬유(20)의 길이방향을 따라 소정 피치의 나선형으로 내주면을 따라 연장 형성되거나, 도 4에서와 같이 비대칭형으로 길이방향을 따라 연장 형성된다.At this time, the inner circumferential surface of the covering member 21 is provided with a plurality of pressing projections 23 having a triangular cross section which is in close contact with the outer circumferential surface of the optical fiber core wire 25 by a predetermined elastic force. Along the longitudinal direction of 20), it is formed extending along the inner circumferential surface in a spiral of a predetermined pitch, or extending along the longitudinal direction asymmetrically as shown in FIG.

이상의 구성에 의한 본 발명의 작용예에 대해 첨부된 도면에 의거하여 상세히 설명하면, 다음과 같다.When described in detail with reference to the accompanying drawings for the working example of the present invention by the above configuration, as follows.

도 3은 본 발명에 따른 광변형센서의 사시도이고, 도 5는 본 발명을 구성하는 광섬유의 가압상태를 도시한 단면도이다.3 is a perspective view of an optical deformation sensor according to the present invention, Figure 5 is a cross-sectional view showing a pressing state of the optical fiber constituting the present invention.

이를 참조하면, 상기 시설물에 크랙(crack) 또는 부분 파단이 발생될 경우 상기 고정부재(10)는 서로 이격되는 방향으로 벌어지게 되므로, 이러한 고정부재(10)에 고정되어 설치된 광섬유(20)는 이에 대응되는 인장력을 받게된다.Referring to this, when a crack or partial fracture occurs in the facility, the fixing member 10 is opened in a direction in which they are spaced apart from each other, and thus the optical fiber 20 fixed to the fixing member 10 is fixed thereto. Will receive a corresponding tensile force.

따라서, 상기 광섬유(20)는 길이방향으로 늘어남과 동시에 그 단면이 중심방향으로 수축되는 피복부재(21)의 가압돌기(23)가 중심부의 광섬유심선(25)을 반경방향으로 가압하여 코어층(27)과 클래드층(28)을 찌그러진 모양이 되도록 한다.Accordingly, the optical fiber 20 is stretched in the longitudinal direction and the pressing projection 23 of the coating member 21 whose cross section is contracted in the center direction pressurizes the optical fiber core 25 at the center in the radial direction so that the core layer ( 27) and the cladding layer 28 to be crushed.

따라서, 상기 광섬유(20)의 일측단에 연결된 광원(40)으로부터 전송되는 소정의 광신호가 광섬유(20)를 지나면서 측압에 비례하는 광손실이 발생되고, 이렇게 손실된 광신호를 광섬유(20)의 타측단에 연결된 광손실측정기(50)에 의해 감지되어 시설물의 변형정도를 정확하게 측정할 수 있게 된다.Therefore, as the predetermined optical signal transmitted from the light source 40 connected to one end of the optical fiber 20 passes through the optical fiber 20, an optical loss in proportion to the side pressure is generated. It is detected by the optical loss meter 50 connected to the other end of the to accurately measure the degree of deformation of the facility.

이때, 상기 광손실 측정기는 소정 길이 연장된 광섬유(30)에 연결되어 상기 시설물로부터 상당거리 이격된 원거리에서 시설물의 정확한 변형량을 측정할 수 있게 된다.In this case, the optical loss measuring device is connected to the optical fiber 30 extending a predetermined length, it is possible to measure the exact amount of deformation of the facility at a far distance from the facility.

이상의 본 발명을 적용하게 되면, 상기 광변형센서는 광섬유심선의 둘레면에 비교적 탄성영률이 큰 폴리머 재질의 피복부재가 형성되어 외부의 충격에 의해 광변형센서가 훼손되는 것을 방지할 수 있으므로, 장기간 사용하더라도 센서의 신뢰성이 유지된다.According to the present invention, the optical deformation sensor is formed on the circumferential surface of the optical fiber core wire is formed of a polymer material having a relatively high elastic Young's modulus can prevent the optical deformation sensor from being damaged by an external impact, so that The reliability of the sensor is maintained even when used.

상기 광변형센서는 피복부재 내주면상에 광섬유심선을 가압하는 가압돌기가 마련되어 시설물 변형에 따른 측정 감도가 우수하다.The optical deformation sensor is provided with a pressing projection for pressing the optical fiber core on the inner peripheral surface of the coating member is excellent in the measurement sensitivity according to the deformation of the facility.

또한, 상기 광변형센서를 구성하는 광섬유는 나선형으로 꼬여져 설치될 필요가 없기 때문에 별도의 나선형 스트랜딩장비가 불필요하므로, 제조설비가 단순화 된다.In addition, since the optical fiber constituting the optical deformation sensor does not need to be installed twisted in a spiral, a separate spiral stranding device is not necessary, thereby simplifying manufacturing facilities.

Claims (3)

일측단에 광원이 연결되고, 타측단에는 손실측정기가 연결되어 건물, 터널, 교량, 댐 등의 시설물 변형 정도를 측정하는 광변형센서에 있어서,In the optical deformation sensor that is connected to a light source at one end, the loss measuring device is connected to the other end to measure the degree of deformation of the facility, such as buildings, tunnels, bridges, dams, 상기 시설물의 소정 위치에 고정 설치되는 한 쌍의 고정부재와;A pair of fixing members fixedly installed at a predetermined position of the facility; 상기 한 쌍의 고정부재에 소정의 장력을 받도록 고정 설치되고, 내주면에는 적어도 하나의 가압돌기가 마련되어 상기 시설물이 변형됨에 따라 길이방향 및 반경방향으로 연신되는 피복부재와;A coating member fixed to the pair of fixing members to receive a predetermined tension, and having at least one pressing protrusion formed on an inner circumferential surface thereof and extending in the longitudinal direction and the radial direction as the facility is deformed; 상기 피복부재의 가압돌기에 의해 소정의 압력으로 눌려지도록 피복부재의 내부에 끼워져 설치되거나 상기 피복부재에 의해 소정의 두께로 피복된 광섬유심선으로 이루어진 것을 특징으로 하는 광변형센서.And an optical fiber core wire inserted into the coating member so as to be pressed at a predetermined pressure by the pressing projection of the coating member or made of an optical fiber core wire coated with the coating member to a predetermined thickness. 제 1항에 있어서,The method of claim 1, 상기 피복부재의 가압돌기는 내주면을 따라 그 단면이 비대칭형으로 연장 형성되거나, 나선형으로 내주면을 따라 연장 형성된 것을 특징으로 하는 광변형센서.The pressing projection of the coating member is an optical deformation sensor, characterized in that the cross section is formed to extend asymmetrically along the inner circumferential surface, or formed along the inner circumferential surface in a helical manner. 제 1항에 있어서,The method of claim 1, 상기 피복부재는 비교적 탄성영률이 큰 폴리머재질로 이루어진 것을 특징으로 하는 광변형센서.The coating member is a light deformation sensor, characterized in that made of a relatively large elastic modulus polymer material.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100380639B1 (en) * 2000-09-16 2003-04-16 주식회사 아이세스 Compsite material reinforcement structure including optical fiber grating sensor
KR100760510B1 (en) * 2006-05-26 2007-09-20 한국과학기술연구원 Monitoring device for rotating body

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100380639B1 (en) * 2000-09-16 2003-04-16 주식회사 아이세스 Compsite material reinforcement structure including optical fiber grating sensor
KR100760510B1 (en) * 2006-05-26 2007-09-20 한국과학기술연구원 Monitoring device for rotating body
US7495750B2 (en) 2006-05-26 2009-02-24 Korea Institute Of Science And Technology Monitoring device for rotating body

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