KR20160029200A - Apparatus and Method for fixing Magnetostrictive Transducer - Google Patents

Abstract

The present invention relates to a magnetostrictive ultrasonic transducer to inspect monitoring or an apparatus and a method to fixate an inspection device using the magnetostrictive ultrasonic transducer on a surface of a structure such as a pipe and the like. The magnetostrictive ultrasonic transducer comprises: a magnetostrictive patch which comes in contact with a surface of a structure and is formed with magnetostrictive materials; a pair of permanent magnets provided on a surface of the magnetostrictive patch, generating a magnetic field; a flexible printed circuit board provided on a surface of the magnetostrictive patch; and an excitation coil which generates an induced magnetic field. The apparatus to fixate the magnetostrictive ultrasonic transducer fixates a bottom surface of the magnetostrictive patch on a surface of the structure to be in contact with the surface of the structure.

Description

TECHNICAL FIELD [0001] The present invention relates to a magnetostrictive ultrasonic transducer fixing apparatus and a magnetostrictive transducer,

The present invention relates to an apparatus and a method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer or a magnetostrictive ultrasonic transducer for diagnostic monitoring to the surface of a structure such as a pipe, a bend or the like.

Important industrial facilities such as nuclear power plants and power generation / petrochemical / iron manufacturing facilities are composed of many high-temperature processes. Especially, key safety management subjects such as piping systems and pressure vessels are maintained at high temperature during operation.

Fig. 1 is a photograph of an accident during operation of the Mihama nuclear power plant in Japan. FIG. 2 is a graph showing a main accident site of a petrochemical plant. In the case of nuclear power plants, since the operation cycle is increasing more and more, economic loss due to shutdown for inspection is very large.

Therefore, it is urgent to develop diagnostic / monitoring techniques for high-temperature structures to ensure the safety of industrial facilities. In addition, cracking and corrosion of high-temperature structures are mainly generated in the piping system, and there is a demand for an ultrasonic inspection technique capable of diagnosing cracks and thickness variations of such high-temperature piping.

Also, in the case of a high-temperature structure, it is covered with a heat insulation layer for insulation / insulation to prevent leakage of temperature. For inspection, it is required to remove such insulation layer and then repair it again after inspection.

FIGS. 3A and 3B are photographs of a high-temperature structure having a coating layer for insulation / insulation. When there are many inspection sites requiring regular / ongoing diagnosis, the size, attachment method, and unit price of the sensor have a great influence on the practical applicability when installing a plurality of sensors.

Conventionally, a piezo-electric high-temperature sensor has been developed. However, due to problems such as limit of use temperature, durability, etc., there is a limit in actual application for constant monitoring.

Therefore, a device and a technique capable of diagnosing a defect in a high-temperature structure considering a limited inspection environment of an actual facility have been required.

Korean Patent No. 1272981 Korea Patent No. 1061226

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for diagnosing a high temperature structure quickly or permanently in a high temperature environment, The present invention is to provide a buried thin plate type high sensitivity magnetostrictive ultrasonic transducer capable of measuring, diagnosing and analyzing cracks and thicknesses of a high temperature structure, a diagnostic device, and an analysis method.

Further, according to the embodiment of the present invention, it is possible to rapidly and easily fix the piping or the curved pipe having a specific curvature to the high-temperature environment to quickly diagnose or permanently install the high-temperature structure, The present invention is to provide a buried thin plate type high sensitivity magnetostrictive ultrasonic transducer capable of measuring, diagnosing and analyzing cracks and thicknesses of a high temperature structure, a diagnostic device, and an analysis method.

According to an embodiment of the present invention, there is provided a fixing device having various structures capable of quickly and easily contacting and fixing a pipe having a specific curvature, a curved pipe, and the like.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A first object of the present invention is to provide a fixing device for fixing a diagnosis device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure or a diagnostic device using the magnetostrictive ultrasonic transducer to the surface of the structure, A magnetostrictive patch which is in contact with a surface of a structure and is made of a magnetostrictive material; a pair of permanent magnets spaced apart from each other by a predetermined distance and provided on a surface of the magnetostrictive patch to generate a magnetic field; And an excitation coil arranged in a meander shape on the flexible PCB substrate and generating an induction magnetic field by being supplied with a voltage by a voltage application unit, The diagnostic device using the magnetostrictive ultrasonic transducer is a device that contacts a surface of a structure, A pair of permanent magnets provided on the surface of the magnetostrictive patch and spaced apart from each other by a predetermined distance to generate a magnetic field, and a pair of permanent magnets provided on the surface of the magnetostrictive patch in the spacing space between the pair of permanent magnets A flexible printed circuit board (PCB), a flexible printed circuit board (PCB), a flexible printed circuit board (PCB), a flexible printed circuit board Wherein the fixing device fixes the lower surface of the magnetostrictive patch so as to be in surface contact with the surface of the structure.

Further, the structure may be a pipe or a tube having a specific curvature.

A second object of the present invention is to provide a fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure or a diagnostic device using the magnetostrictive ultrasonic transducer to the surface of the structure, A first link stage and a second link stage fixed by the support and pivoted about the hinge; A first handle portion and a second handle portion provided at one end of the first link end and one end of the second link end, respectively; A first fixed end fixed to one end of the magnetostrictive patch, the other end of the first link end being rotatable by the first hinge; A second fixed end fixed to the other end of the magnetostrictive patch, the other end of the second link end being pivotable by the second hinge; And a fixing bar which is moved in the longitudinal direction at the hinge portion and which fixes the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure. .

The first handle and the second handle may be rotated so that the first link and the second link rotate about the hinge so that the magnetostrictive patch is curved to have a specific curvature .

And a fastening member for fixing the fixing bar and the first link end and the second link end to a specific position.

The stationary bar may include a stationary plate that contacts the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer.

The length of the magnetostrictive patch may be about 5 to 30 times larger than the width.

A third object of the present invention is to provide a method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer or a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure to the surface of the structure, Fixing the first fixed end and the second fixed end on both ends of the magnetostrictive patch of the magnetostrictive ultrasonic transducer; A first linkage that is pivotable about a hinge and rotates about a first handle and a second handle, the end of which is pivoted by a first hinge of the first stationary end, and a second linkage that is connected to a second handle, Bending the magnetostrictive patch by a second link stage pivoted by a second hinge of the fixed stage; And fixing the first link end and the second link end when the magnetostrictive patch has a curvature consistent with a surface curvature of a structure to be analyzed and diagnosed and fixing the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic wave And contacting the transducer with the surface of the structure.

A fourth object of the present invention is to provide a fixing device for fixing a diagnosis device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure or a diagnostic device using the magnetostrictive ultrasonic transducer to the surface of the structure, A movable stage fixed to the other end of the magnetostrictive patch and having a moving hole formed therein; A belt having one end fixed to the fixed end and a plurality of engaging protrusions formed at the other end to be inserted into the moving hole of the movable end; And a stopper lever which fixes the other end of the belt to a specific position on the moving end, and fixing the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure by the belt So that it can be achieved as a fixing device of a magnetostrictive ultrasonic transducer.

In addition, the belt may be formed of plastic.

The diagnosis device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer can be fixed to the surface of the structure irrespective of the curvature of the surface of the structure.

A fifth object of the present invention is to provide a method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure or a magnetostrictive ultrasonic transducer to the surface of the structure, And fixing a moving end having a moving hole at the other end of the magnetostrictive patch; A step of wrapping the surface of the structure with a belt having one end fixed to the fixed end and inserting the other end into the moving hole of the movable end; And moving the belt to bring the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer into surface contact with the surface of the structure and to fix the other end of the belt through the stopper lever . ≪ / RTI >

A sixth object of the present invention is to provide a fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer or a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure to the surface of the structure, A first link portion rotated and a second link portion; A first detachable fixed end detachably attachable to one end of the first link portion and having a curved surface having a specific curvature; A second detachable fixed end detachably attachable to one end of the second link portion and having a curved surface having a specific curvature; And a fixing bar which is moved in the longitudinal direction at the hinge portion and which fixes the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure. .

In addition, the curvature of the curved surface of the first detachable fixed end and the second detachable fixed end corresponds to the surface curvature of the structure to be analyzed and diagnosed.

The fixing unit may further include a fixing member for fixing the first link portion, the second link portion, and the fixed end to a specific position.

A seventh object of the present invention is to provide a method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer or a magnetostrictive ultrasonic transducer for analyzing and diagnosing the condition of a structure to the surface of the structure, Attaching a first detachment fixing end and a second detachment fixing end, each having a curvature corresponding to a curvature of a surface of a structure to be analyzed and diagnosed, at each end of each of the second link portions; Rotating the first link portion and the second link portion around the hinge portion to fix the curvature surface of the first detachment fixed end and the second detachment fixed end in contact with the surface of the structure; And fixing the magnet to the surface of the structure by moving the fixed bar and fixing the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure.

In addition, the first detachment fixed end and the second detachment fixed end may be detached, and the first detachment fixed end and the second detachment fixed end having another curved surface may be attached to the first link part and the second link part, respectively The method comprising the steps of:

According to an embodiment of the present invention, it is possible to quickly diagnose or permanently install a high-temperature structure in a high-temperature environment and to diagnose and diagnose cracks and thickness of a high-temperature structure with high sensitivity .

It is able to quickly diagnose or permanently install high-temperature structures in a high temperature environment by fast and easy contact with piping or curved pipes having specific curvature, and it is possible to conduct continuous diagnosis and measure cracks and thickness of high temperature structures with high sensitivity. , And has the effect of analyzing.

According to an embodiment of the present invention, it is possible to provide a fixing device having various structures capable of quickly and easily contacting and fixing to pipes, curved pipes, etc. having a specific curvature.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

Fig. 1 is a photograph of an accident during operation of the Mihama nuclear power plant in Japan,
FIG. 2 is a graph showing a main accident site of a petrochemical plant,
FIGS. 3A and 3B are photographs of a high-temperature structure provided with a coating layer for insulation /
4 is a perspective view of a high-temperature structure provided with a buried magnetostrictive ultrasonic transducer according to an embodiment of the present invention,
5 is a plan view of a magnetostrictive ultrasonic transducer according to an embodiment of the present invention,
6A is a cross-sectional view of a high-temperature structure provided with a buried magnetostrictive ultrasonic transducer according to an embodiment of the present invention,
6B is a perspective view of a high-temperature structure provided with a diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention,
6C is a plan view of a diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention,
7A and 7B are graphs of amplitude and frequency spectrum of SH volumetric wave generated by the diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention,
8 is a perspective view of a high-temperature structure provided with a diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the second embodiment of the present invention,
9A is a plan view of a diagnostic apparatus using a diagnostic apparatus using a magnetostrictive ultrasonic transducer for 10 MHz according to a second embodiment of the present invention,
9B is a plan view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer for 5 MHz according to a second embodiment of the present invention,
10A is a sectional view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a third embodiment of the present invention,
FIG. 10B is a cross-sectional view of a fixing structure in contact with a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a third embodiment of the present invention; FIG.
11 is an exploded perspective view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a third embodiment of the present invention,
12A is a bottom view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a fourth embodiment of the present invention,
12B is an exploded perspective view of the diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the fourth embodiment of the present invention,
13A is a perspective view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a fifth embodiment of the present invention,
13B is an exploded perspective view of the diagnostic apparatus using the magnetostrictive ultrasonic transducer according to the fifth embodiment of the present invention,
13C is a cross-sectional view of a fixing structure to which a diagnostic apparatus using a magnetostrictive ultrasonic transducer according to a fifth embodiment of the present invention is brought into contact,
14A is a front view of a magnetostrictive ultrasonic transducer securing apparatus according to the first embodiment of the present invention,
FIG. 14B is a plan view of a diagnostic apparatus using an ultrasonic transducer fixed by a fixing device according to the first embodiment of the present invention, FIG.
FIG. 14C is a front view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer installed in a high-temperature structure by the magnetostrictive ultrasonic transducer fixing apparatus according to the first embodiment of the present invention; FIG.
15A is a front view of a magnetostrictive ultrasonic transducer securing apparatus according to a second embodiment of the present invention;
FIG. 15B is a front view of a diagnostic apparatus using a magnetostrictive ultrasonic transducer installed in a high temperature structure by a magnetostrictive ultrasonic transducer fixing apparatus according to a second embodiment of the present invention; FIG.
Fig. 15C is an enlarged view of Fig. 15B,
16 is a front view of a magnetostrictive ultrasonic transducer installed in a high temperature structure by a magnetostrictive ultrasonic transducer fixing apparatus according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

≪ Configuration of magnetostrictive ultrasonic transducer and diagnostic device >

Hereinafter, configurations and functions of the magnetostrictive ultrasonic transducer 10 and the diagnostic apparatus 100 according to an embodiment of the present invention will be described. 4 is a perspective view of a high-temperature structure 1 provided with a buried magnetostrictive ultrasonic transducer 10 according to an embodiment of the present invention.

4, the buried magnetostrictive ultrasonic transducer 10 according to an embodiment of the present invention is installed on the outer surface of the high-temperature structure 1, the outer surface of the high-temperature pipe, And is buried between the outer surfaces of the structure 1.

As described later, the embedded type magnetostrictive ultrasonic transducer 10 and the diagnostic apparatus 100 are provided with a magnetostrictive patch 11, a flexible PCB substrate 20, an excitation coil 40, a measurement coil 50, a permanent magnet (30), and the like. Therefore, the current flowing in the excitation coil 40 to which the voltage is applied by the voltage applying unit and the induction magnetic field 5 induced thereby and the magnetostrictive patch 11 The SH ultrasonic waves are applied to the high temperature structure 1 and the applied SH ultrasonic waves are reflected on the inner surface of the high temperature structure 1 or at the point where the cracks are generated and the measurement coil 50 measures the SH The thickness, cracks, and the like of the high-temperature structure 1 are analyzed.

The embedded type magnetostrictive ultrasonic transducer 10 and the diagnostic apparatus 100 according to an embodiment of the present invention can diagnose the crack and the thickness of the high temperature structure 1 in real time and can be applied to a high temperature of about 300 캜 So that it is possible to embed it under the heat insulating layer 2.

Hereinafter, the configuration of the magnetostrictive ultrasonic transducer 10 and the ultrasonic wave generating method according to an embodiment of the present invention will be described in more detail. 5 shows a top view of a magnetostrictive ultrasonic transducer 10 according to an embodiment of the present invention.

5, a magnetostrictive ultrasonic transducer 10 according to an embodiment of the present invention includes a magnetostrictive patch 11 that is in contact with a surface of a high-temperature structure 1 such as a high-temperature pipe, A pair of permanent magnets 30 provided on the magnetostrictive patch 11 at a predetermined distance from each other, a flexible PCB 20 disposed in a space between the pair of permanent magnets 30, And a voltage applying unit for applying a voltage to the excitation coil 40. The excitation coil 40 is a meander type excitation coil provided on the PCB base.

A magnetostrictive transducer (MsT) 10 according to an exemplary embodiment of the present invention is a type of electromagnetic acoustic transducer (EMAT). The magnetostrictive transducer 10 is an electromagnetic acoustic transducer .

5, the magnetostrictive patch 11 is brought into contact with the surface of the high-temperature structure 1 such as a pipe or a bend, and this magnetostrictive patch 11 is constituted by a magnetostrictive material which can be magnetostatically deformed . In a specific embodiment of the present invention, this magnetostrictive patch 11 is made of FeCo. Such FeCo corresponds to a material that maintains a high-sensitivity magnetostriction property even at a high temperature.

As shown in FIG. 5, a pair of permanent magnets 30 are disposed on the surface of the magnetostrictive patch 11 at a predetermined distance from each other. The pair of permanent magnets 30 are arranged in different poles so that the magnetic field 4 is formed in the spacing space between the pair of permanent magnets 30.

The flexible PCB substrate 20 is provided on the surface of the magnetostrictive patch 11 in a space between the pair of permanent magnets 30. The meander type excitation coil 40 is installed on the surface of the flexible PCB 20.

As described later, the distance between the coils of the excitation coil 40, and the frequency of the SH wave 3 generated by the impedance matching circuit and the like are determined. The SH wave 3 is generated by the magnetic field 4 formed by the permanent magnet 30 and the magnetostrictive patch 11 deformed by the induction magnetic field 5 induced by the current flowing in the coil 40 having the SH wave (3) is generated.

If the magnetostrictive patch 11 is not used, it is advantageous for surface wave generation and can be diagnosed in a noncontact manner. However, there is a problem that the signal-to-noise ratio is reduced due to the material characteristics of the high-temperature structure 1, When the magnetostrictive patch 11 according to the embodiment of the present invention is used, contact with the high-temperature structure 1 is required, but the sensitivity is high and the SH wave 3 can be generated, And can be diagnosed, measured and analyzed irrespective of the type of the subject.

Hereinafter, the configuration and functions of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer will be described. 6A is a cross-sectional view of a high-temperature structure 1 in which a diagnostic apparatus 100 using a buried magnetostrictive ultrasonic transducer according to an embodiment of the present invention is installed. FIG. 6B is a perspective view of the high-temperature structure 1 in which the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention is installed. 6C is a plan view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention.

6A, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention is installed in a state of being embedded between the high temperature structure 1 and the heat insulating layer 2, . Therefore, the SH wave 3 is applied to the inner side of the structure 1 by the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention, , The SH wave (3) reflected from the inner surface of the high-temperature structure (1) or the cracked layer is measured, and the thickness, crack and the like of the high-temperature structure (1) are diagnosed and analyzed by the analyzing means in real time.

6B and 6C, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention includes a magnetostrictive patch 11 A pair of permanent magnets 30 provided on the surface of the magnetostrictive patch 11 so as to be spaced apart from each other by a predetermined distance and a flexible PCB substrate 20 provided in a space between the pair of permanent magnets 30, The meander type excitation coil 40 and the measurement coil 50 arranged on the flexible PCB substrate 20 and the voltage applying unit for applying a voltage to the excitation coil 40 are included And the analyzing means and the like are connected to the measuring coil 50.

A magnetic field 4 is formed between the pair of permanent magnets 30 and an induced magnetic field 5 is formed when a current flows through the coil 40 driven by the voltage applying unit. The magnetostrictive patch 11 is magnetostricted by the induction magnetic field 4 and the induction magnetic field 5 so that the SH is applied to the inside of the high temperature structure 1 and the SH reflected by the inner surface of the high temperature structure 1, The wave 3 is applied to the measuring coil 50, and the thickness, crack, etc. of the high-temperature structure 1 are diagnosed, measured and analyzed in real time by the analyzing means or the like.

7A and 7B show amplitude and frequency spectrum graphs of the SH volumetric wave generated by the magnetostrictive ultrasonic transducer according to the first embodiment of the present invention. As shown in FIGS. 7A and 7B, it can be seen that the amplitude of the SH wave 3 decreases with the passage of time, FIG. 7A shows a frequency of about 2.25 MHz, and FIG. 7B shows a frequency of about 5 MHz . ≪ / RTI >

The frequency of the generated SH wave 3 is determined by the gap of the excitation coil 40 and the impedance matching circuit, as will be described later. Therefore, a desired frequency can be generated by adjusting the interval of the coils 40 having an impedance or by attaching an impedance matching circuit.

FIG. 8 is a perspective view of a high-temperature structure 1 in which a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a second embodiment of the present invention is installed. 8, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the second embodiment of the present invention includes a magnetostrictive patch 11 and a flexible PCB 20 on each of the excitation unit and the measurement unit, Which is the same as the first embodiment.

That is, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the second embodiment of the present invention may also be installed between the high temperature structure 1 and the heat insulating layer 2, As can be seen, there is a pair of magnetostrictive patches 11 that are in contact with the high temperature structure 1.

8, the flexible PCB 20 is provided on each of the surfaces of the pair of magnetostrictive patches 11, and the flexible PCB substrate 20 provided on one side is provided with a meander- And the meander type measurement coil 50 is disposed on the flexible PCB substrate 20 provided on the other side.

Therefore, by providing the magnetostrictive patches 11 independently in each of the exciting portion and the measuring portion, the interference phenomenon between them can be prevented, and the thickness and the crack of the high-temperature structure 1 can be measured with higher sensitivity.

The magnetostrictive patches 11 may be integrally formed and a pair of the flexible PCB boards 20 may be provided or a single flexible printed circuit board 20 may be disposed on the pair of magnetostrictive patches 11 .

9A is a plan view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer for 10 MHz according to a second embodiment of the present invention. 9B is a plan view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer for 5 MHz according to the second embodiment of the present invention.

As described above, the frequency of the SH wave 3 generated by the ultrasonic transducer according to an embodiment of the present invention is determined by the gap of the excitation coil 40, the impedance matching circuit. 9A, when a line width of the excitation coil 40 is 0.2 mm and a blank interval between the coils 40 having a width of 0.1 mm is designed, an SH frequency of 10 MHz is generated. As shown in FIG. 9B Similarly, when the line width of the coil 40 is 0.5 mm and the spacing between the coils 40 is 0.1 mm, an SH frequency of 5 MHz is generated.

10A is a cross-sectional view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a third embodiment of the present invention. FIG. 10B is a cross-sectional view of the high-temperature structure 1 in contact with the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the third embodiment of the present invention.

As shown in FIGS. 10A and 10B, in the third embodiment of the present invention, when the high-temperature structure 1 is a pipe or a curved pipe, various curvatures can be applied to the pipe in a comprehensive manner . 11 is an exploded perspective view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a third embodiment of the present invention.

In other words, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the third embodiment of the present invention differs from the first and second embodiments described above in that the case member 110 and the fastening means 120, As shown in FIG.

The case member 110 according to the third embodiment of the present invention has a top surface closed, a side surface having a specific thickness, and a bottom surface having an opening formed therein, as shown in Figs. 10A, 10B and 11 As shown in FIG.

In addition, the lower surface of the side surface has a curved shape with a specific curvature, and more specifically, it has a curved shape tilted from the outside to the inside so that the outside of the side is located above the inside.

Therefore, if the edge of the magnetostrictive patch 11 is fixed to the lower surface of the side surface of the case member 110 by the fastening means 120 by the fastening means 120, As shown in FIG. 10A, it is arranged in a convex shape toward the lower side.

Further, since the hollow portion is formed inside the case member 110, the magnetostrictive patch 11 can be structured to be flexibly deformable. Therefore, when the diagnosis apparatus 100 using the magnetostrictive ultrasonic transducer according to the third embodiment of the present invention is brought into contact with the surface of the high-temperature structure 1 having a specific curvature, as shown in FIG. 10B, It can be seen that the patch 11 is bent and brought into contact with the curvature of the high-temperature structure 1 in conformity with the curvature thereof.

Accordingly, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the third embodiment of the present invention can be installed not only in the flat plate type high temperature structure 1 but also in the curved pipes and pipes having various curvatures.

12A is a bottom view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a fourth embodiment of the present invention. 12B is an exploded perspective view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the fourth embodiment of the present invention. 12A and 12B, it can be seen that the fourth embodiment of the present invention corresponds to the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer applied to the plate-type high-temperature structure 1.

12A and 12B, the case member 110 according to the fourth embodiment of the present invention has a top surface closed, a side surface having a specific thickness, and an open bottom and an inner space Able to know. Further, the lower end surface of the side surface of the case member 110 according to the fourth embodiment of the present invention is provided flat without curvature. Therefore, the magnetostrictive patch 11 is provided on the lower surface of the side surface, and the magnetostrictive patch 11 is kept flat without curvature.

Therefore, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the fourth embodiment can be installed on the outer surface of the flat plate type high temperature structure 1. [

13A is a perspective view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a fifth embodiment of the present invention. 13B is an exploded perspective view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the fifth embodiment of the present invention. 13A and 13B, it can be seen that the fifth embodiment of the present invention corresponds to the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer applied to a curved pipe having a specific curvature or a pipe.

13A and 13B, a case member 110 according to a fifth embodiment of the present invention has a top surface closed, a side surface having a specific thickness, a bottom open and an inner space, Able to know. In addition, the lower end surface of the side surface of the case member 110 according to the fifth embodiment of the present invention has a curved shape with a specific curvature. As shown in FIG. 13A, the lower end surface of the side surface of the case member 110 is curved while inclining from the outside to the inside so that the inside is located above the outside.

Therefore, when the magnetostrictive patch 11 is fixed and attached to the side lower surface of the case member 110 by the fastening means 120 or the like, as shown in FIG. 10A, The deformed patch 11 is also curved.

10 (c), the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer according to the fifth embodiment of the present invention is shaped and contacted to the surface of a pipe or a bend having a curvature corresponding to this specific curvature, .

In addition, after the case member 110 is variously manufactured so that the lower side surface has various curvatures, the case member 110 having the curvature corresponding to the curvature of the high temperature structure 1, The patch 11 can be attached and used.

<Configuration of magnetostrictive ultrasonic transducer fixing device>

Hereinafter, a configuration of a fixing device for fixing the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer 10 or the magnetostrictive ultrasonic transducer according to the embodiment of the present invention to the surface of the high temperature structure 1 will be described do.

14A is a front view of a fixing device 200 for fixing a diagnostic device 100 using a magnetostrictive ultrasonic transducer according to the first embodiment of the present invention to a structure 1 such as a pipe, . 14B is a plan view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer fixed by the fixing device 200 according to the first embodiment of the present invention. FIG. 14C is a front view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer provided in the high temperature structure 1 by the magnetostrictive ultrasonic transducer fixing apparatus 200 according to the first embodiment of the present invention.

14A, a fixing device 200 for fixing a diagnostic device 100 using a magnetostrictive ultrasonic transducer according to the first embodiment of the present invention to a structure 1 such as a pipe, a bend, etc., The link 230 and the first handle 231, the hinge 250, the first fixed end 210, the second link end 240 and the second handle 241, the hinge 250, The second fixed terminal 220, and the like.

In the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer fixed by the fixing device 200 according to the first embodiment of the present invention, as shown in Fig. 14B, the magnetostrictive patch 11 has a width It can be seen that it has a long strip shape. On the outer surface of the magnetostrictive patch 11, a flexible PCB, a meander type excitation coil 40, and a measurement coil 50 are disposed.

The first link end 230 and the second link end 240 of the fastening device 200 according to the first embodiment of the present invention can be rotated about the hinge part 250 at the hinge part 250, One end of each of the first link 230 and the second link 240 is fixed to the end of the magnetostrictive patch 11 by the first fixed end 210 and the second fixed end 220, So that it is fixedly installed. The end of the first link end 230 is fixed to the first fixed end 210 by the first hinge 211 and freely rotates about the first hinge 211. The second link end 240 are fixed to the second fixed end 220 by the second hinge 221 so as to freely rotate about the second hinge 221.

The first handle 231 may be integrally formed with the first link 230 and may include a first link 230 and a first handle 231 with respect to the hinge 250, The second handle portion 241 is integrally formed with the second link end portion 240 and is divided into the second link end portion 240 and the second handle portion 241 with respect to the hinge portion 250.

The hinge part 250 is provided with a fixing bar 260 which is movable up and down and a fixing plate 261 is provided at an end of the fixing bar 260. 14C, when the user grasps and grips the first and second grip portions 231 and 241, the first link end 230 and the second link end 230 are pushed with respect to the hinge portion 250, It is understood that the magnetostrictive patch 11 fixed between the first fixed end 210 and the second fixed end 220 is bent to have a curvature because the angle between the first fixed end 210 and the second fixed end 240 is reduced.

Accordingly, the user can turn the first handle 231 and the second handle 241 to bend the magnetostrictive patch 11 so as to coincide with the curvature of the structure 1. When the magnetostrictive patch 11 is bent to conform to the curvature of the structure 1, the user fixes the first link stage 230 and the second link stage 240 by the fixing member so as not to turn.

Then, the fixing bar 260 is moved to place the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer between the fixed plate 261 and the surface of the structure 1, So as to be brought into contact with the surface. The fixing bar 260 is fixed by the fastening member so that the fixing bar 260 is not moved.

When the voltage is applied to the coil 40 by the voltage applying unit, the magnetostrictive patch 11 is magnetostatically deformed and the SH wave 3 is applied to the inside of the structure 1, The SH wave 3 reflected from the inner surface or the cracked portion of the structure 1 is received by the measuring coil 50 and analyzed by the analyzing means connected with the measuring coil 50 to measure and analyze the crack, , Respectively.

Therefore, according to the fixing device 200 of the first embodiment, it is possible to fix the diagnosis device 100 using the magnetostrictive ultrasonic transducer to the surface of the high-temperature structure 1 without any change in the curvature of the high-temperature pipe, do.

There is shown a front view of a fixing device 300 for fixing a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer according to a second embodiment of the present invention to a surface of a high temperature structure 1 having a curvature. 15B is a front view of the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer installed in the high temperature structure 1 by the fixing apparatus 300 according to the second embodiment of the present invention. FIG. 15C shows an enlarged view of FIG. 15B.

15A, 15B and 15C, the fixing device 300 of the magnetostrictive ultrasonic transducer according to the second embodiment of the present invention includes a fixed end 320, a movable end, a belt 310, (340), and the like.

It is understood that the fixed end 320 and the movable end according to the second embodiment of the present invention are fixed to the opposite ends of the magnetostrictive patch 11 as shown in FIG. 15A. One end of a belt 310 made of a polymer material is fixed to the fixed end 320 according to the second embodiment of the present invention and a plurality of saw-like engaging protrusions 311 are formed on the other end of the belt 310 And is configured to be movable through a moving hole formed in the moving end.

The other end of the belt 310 can be moved through a moving hole formed in the moving end, and can be fixed to a specific position by the stopper lever 340. 15B, after the outer surface of the pipe 310 is surrounded by the belt 310, the other end of the belt 310 is inserted into the moving hole of the moving end, the belt 310 is attached to the outer surface of the pipe 310, And then the belt 310 is fixed to the moving end through the stopper lever 340 so that the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer 10 or the ultrasonic transducer is contacted and fixed to the pipe .

When the voltage is applied to the coil 40 by the voltage applying unit, the magnetostrictive patch 11 is magnetostatically deformed and the SH wave 3 is applied to the inside of the structure 1, The SH wave 3 reflected from the inner surface or the cracked portion of the structure 1 is received by the measuring coil 50 and analyzed by the analyzing means connected with the measuring coil 50 to measure and analyze the crack, , Respectively.

Therefore, according to the fixing apparatus 300 of the second embodiment, the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer 10 or the magnetostrictive ultrasonic transducer without any change in the curvature of the high temperature pipe, So that it can be contacted and fixed to the surface of the substrate.

16 shows a front view of a diagnostic apparatus 100 using a magnetostrictive ultrasonic transducer installed in a high temperature structure 1 by a fixing device 400 according to a third embodiment of the present invention. 16, a magnetostrictive ultrasonic transducer 10 according to the third embodiment of the present invention or a fixing device 400 for fixing the diagnostic device 100 using the ultrasonic transducer to the surface of the high-temperature structure 1 Includes a first link part 410 and a second link part 420 which are rotated by the hinge part 250 and a first detachable fastening part 420 fastened to be detachably attached to the end of the first link part 410, A second detachable fixing end 460 that is detachably coupled to an end of the second link portion 420, a fixing bar 440 that is inserted into the hinge portion 430 and rotates up and down, and the like. .

As shown in FIG. 16, the outer surfaces of the first and second detachable fixed ends 450 and 460 have a curved shape with a specific curvature. Therefore, the first detachable fixed end 450 and the second detachable fixed end 460 having a curvature corresponding to the curvature of the pipe, the curved line to be diagnosed and measured, and the second detachable fixed end 460 are fixed to the ends of the first link part 410 and the second And is fastened at the end of the link portion 420.

The first link part 410 and the second link part 420 are rotated about the hinge part 430 to diagnose and diagnose the outer surfaces of the first detachable fixing part 450 and the second detachable fixing part 460, The first link portion 410 and the second link portion 420 are fixed so as not to be rotated by the fixing member.

The magnetostrictive ultrasonic transducer 10 or the diagnostic apparatus 100 using the ultrasonic transducer is moved upward and downward by moving the fixing bar 440 screwed into the threaded fastening hole formed in the hinge unit 430 to measure and diagnose And is brought into contact with the surface of the target high-temperature structure (1).

When the voltage is applied to the coil 40 by the voltage applying unit, the magnetostrictive patch 11 is magnetostatically deformed and the SH wave 3 is applied to the inside of the structure 1, The SH wave 3 reflected from the inner surface or the cracked portion of the structure 1 is received by the measuring coil 50 and analyzed by the analyzing means connected with the measuring coil 50 to measure and analyze the crack, , Respectively.

Therefore, according to the fixing device 400 according to the third embodiment, it is possible to replace the attachment / detachment fixing ends 450 and 460 having various curvature surfaces, so that the magnetostrictive ultrasonic transducer The ultrasonic diagnostic apparatus 10 or the diagnostic apparatus 100 using the magnetostrictive ultrasonic transducer can be brought into contact with the surface of the high temperature structure 1. [

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers of the technical field to which the present invention belongs.

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: High temperature structure
2: insulating layer
3: SH wave
4: magnetic field
5: Inductive magnetic field
10: magnetostrictive ultrasonic transducer
11: Magnetostriction patch
20: Flexible PCB board
30: permanent magnet
40: Coiled coil
50: Measurement coil
100: Diagnostic device using magnetostrictive ultrasonic transducer
110: Case member
120: fastening means
200, 300, 400: Fixing device
210: first fixed end
211: first hinge
220: second fixed end
221: 2nd hinge
230: first link stage
231: first handle portion
240: second link stage
241: second handle
250: Hinge section
260: Fixed bar
261: Fixing plate
310: belt
311:
320: Fixed end
330: Moving stage
340: Stopper lever
410: first link portion
420: second link portion
430: Hinge section
440: Fixed bar
450: first detachment fixing end
460: second detachment fixing end

Claims (17)

1. A fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a state of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Wherein the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch that is in contact with a surface of a structure and is made of a magnetostrictive material, a pair of permanent magnets spaced apart from each other by a predetermined distance and provided on a surface of the magnetostrictive patch to generate a magnetic field, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a spacing space between a pair of permanent magnets, and a flexible printed circuit board disposed in a meander form on the flexible PCB substrate and configured to generate an induction magnetic field A coil,
The diagnostic apparatus using the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch which is in contact with a surface of a structure and is made of a magnetostrictive material and a pair of permanent magnets arranged on a surface of the magnetostrictive patch, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a space between the magnet and the pair of permanent magnets; and a magnetic field sensor arranged in a meander form on the flexible PCB substrate, And a measurement coil spaced a predetermined distance from the excitation coil and arranged in a meander shape on the flexible PCB substrate,
Wherein the fixing device fixes the lower surface of the magnetostrictive patch so as to be in surface contact with the surface of the structure.
The method according to claim 1,
Wherein the structure is a pipe or a bend having a specific curvature.
1. A fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a state of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Wherein the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch that is in contact with a surface of a structure and is made of a magnetostrictive material, a pair of permanent magnets spaced apart from each other by a predetermined distance and provided on a surface of the magnetostrictive patch to generate a magnetic field, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a spacing space between a pair of permanent magnets, and a flexible printed circuit board disposed in a meander form on the flexible PCB substrate and configured to generate an induction magnetic field A coil,
The diagnostic apparatus using the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch which is in contact with a surface of a structure and is made of a magnetostrictive material and a pair of permanent magnets arranged on a surface of the magnetostrictive patch, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a space between the magnet and the pair of permanent magnets; and a magnetic field sensor arranged in a meander form on the flexible PCB substrate, And a measurement coil spaced a predetermined distance from the excitation coil and arranged in a meander shape on the flexible PCB substrate,
The fixing device includes:
A first link stage and a second link stage which are fixed by the hinge portion and pivot about the hinge portion,
A first handle portion and a second handle portion provided at one end of the first link end and one end of the second link end, respectively;
A first fixed end fixed to one end of the magnetostrictive patch, the other end of the first link end being rotatable by the first hinge;
A second fixed end fixed to the other end of the magnetostrictive patch, the other end of the second link end being pivotable by the second hinge; And
And a fixing bar which is moved in the longitudinal direction at the hinge portion and which fixes the diagnosis device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure.
The method of claim 3,
Wherein the first knob portion and the second knob portion are rotated so that the first link end and the second link end rotate with respect to the hinge portion so that the magnetostrictive patch is bent to have a specific curvature, .
5. The method of claim 4,
Further comprising a fastening member for fixing the fixing bar and the first link end and the second link end to a specific position.
6. The method of claim 5,
And an end of the fixing bar includes a fixing plate that is in contact with the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer.
The method of claim 3,
Wherein a length of the magnetostrictive patch is 5 to 30 times greater than a width of the magnetostrictive patch.
A method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a condition of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Fixing the first fixed end and the second fixed end to both ends of the magnetostrictive patch of the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer;
A first linkage that is pivotable about a hinge and rotates about a first handle and a second handle, the end of which is pivoted by a first hinge of the first stationary end, and a second linkage that is connected to a second handle, Bending the magnetostrictive patch by a second link stage pivoted by a second hinge of the fixed stage; And
Wherein when the magnetostrictive patch has a curvature consistent with a surface curvature of a structure to be analyzed and diagnosed, the first link stage and the second link stage are fixed and the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer Contacting the surface of the structure to the surface of the structure.
1. A fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a state of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Wherein the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch that is in contact with a surface of a structure and is made of a magnetostrictive material, a pair of permanent magnets spaced apart from each other by a predetermined distance and provided on a surface of the magnetostrictive patch to generate a magnetic field, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a spacing space between a pair of permanent magnets, and a flexible printed circuit board disposed in a meander form on the flexible PCB substrate and configured to generate an induction magnetic field A coil,
The diagnostic apparatus using the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch which is in contact with a surface of a structure and is made of a magnetostrictive material and a pair of permanent magnets arranged on a surface of the magnetostrictive patch, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a space between the magnet and the pair of permanent magnets; and a magnetic field sensor arranged in a meander form on the flexible PCB substrate, And a measurement coil spaced a predetermined distance from the excitation coil and arranged in a meander shape on the flexible PCB substrate,
The fixing device includes:
A fixed end fixed to one end of the magnetostrictive patch; a moving end fixed to the other end of the magnetostrictive patch and having a moving hole;
A belt having one end fixed to the fixed end and a plurality of engaging protrusions formed at the other end to be inserted into the moving hole of the movable end;
And a stopper lever which fixes the other end of the belt to a specific position on the moving end, and fixing the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure by the belt Characterized in that the magnetostrictive ultrasonic transducer is fixed.
10. The method of claim 9,
Characterized in that the belt is made of plastic.
11. The method of claim 10,
Wherein the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer can be fixed to the surface of the structure irrespective of the curvature of the surface of the structure.
A method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a condition of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Fixing a fixed end to one end of the magnetostrictive patch and fixing a moving end having a moving hole at the other end of the magnetostrictive patch;
A step of wrapping the surface of the structure with a belt having one end fixed to the fixed end and inserting the other end into the moving hole of the movable end; And
Moving the belt so that the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer is in surface contact with the surface of the structure and fixing the other end of the belt through the stopper lever.
1. A fixing device for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a state of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
Wherein the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch that is in contact with a surface of a structure and is made of a magnetostrictive material, a pair of permanent magnets spaced apart from each other by a predetermined distance and provided on a surface of the magnetostrictive patch to generate a magnetic field, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a spacing space between a pair of permanent magnets, and a flexible printed circuit board disposed in a meander form on the flexible PCB substrate and configured to generate an induction magnetic field A coil,
The diagnostic apparatus using the magnetostrictive ultrasonic transducer comprises a magnetostrictive patch which is in contact with a surface of a structure and is made of a magnetostrictive material and a pair of permanent magnets arranged on a surface of the magnetostrictive patch, A flexible printed circuit board (PCB) provided on a surface of the magnetostrictive patch in a space between the magnet and the pair of permanent magnets; and a magnetic field sensor arranged in a meander form on the flexible PCB substrate, And a measurement coil spaced a predetermined distance from the excitation coil and arranged in a meander shape on the flexible PCB substrate,
The fixing device includes:
A first link portion that is rotated with respect to the hinge portion;
A first detachable fixed end detachably attachable to one end of the first link portion and having a curved surface having a specific curvature;
A second detachable fixed end detachably attachable to one end of the second link portion and having a curved surface having a specific curvature; And
And a fixing bar which is moved in the longitudinal direction at the hinge portion and which fixes the diagnosis device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure.
14. The method of claim 13,
Wherein the curvature of the curved surface of the first detachable fixed end and the second detachable fixed end corresponds to the surface curvature of the structure to be analyzed and diagnosed.
15. The method of claim 14,
Further comprising: a fixing member for fixing the first link portion, the second link portion, and the fixed end to a specific position.
A method for fixing a diagnostic device using a magnetostrictive ultrasonic transducer for analyzing and diagnosing a condition of a structure or a magnetostrictive ultrasonic transducer to a surface of the structure,
A first detachable fixed end and a second detached fixed end, each having a curvature corresponding to a curvature of a surface of a structure to be analyzed and diagnosed, at the end of each of the second link portions, Attaching;
Rotating the first link portion and the second link portion around the hinge portion to fix the curvature surface of the first detachment fixed end and the second detachment fixed end in contact with the surface of the structure; And
And moving the fixing bar to fix the diagnostic device using the magnetostrictive ultrasonic transducer or the magnetostrictive ultrasonic transducer to the surface of the structure.
17. The method of claim 16,
Attaching the first detachment fixed end and the second detachment fixed end to each other and attaching the first detachment fixing end and the second detachment fixing end having another curvature surface to the first link part and the second link part, Further comprising the steps of:

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