KR20030096758A - Superconducting properties measuring system of high-Tc superconductor coated conductor using Leeno-pin - Google Patents

Abstract

PURPOSE: A characteristic measurement apparatus is provided to measure the threshold current and threshold transfer temperature in a rapid way, while preventing damages of the thin film specimen. CONSTITUTION: A characteristic measurement apparatus comprises a specimen mounted structure on which a plurality of high temperature superconducting coated rod wire specimens and a temperature sensor are mounted; a specimen characteristic measurement structure for fixing the specimens on the specimen mounted structure, and which is mounted with a current supply terminal for supplying a current to the specimens and a voltage terminal for measurement of the voltages of the specimens; and a support and moving unit for supporting the specimen mounted structure and permitting the specimen mounted structure to move in a vertical direction.

Description

Superconducting properties measuring system of high-Tc superconductor coated conductor using Leeno-pin}

The present invention relates to a device for measuring the properties of a high temperature superconducting coated wire using lino-pin, and more particularly, to a measuring device for easily measuring the critical current and the critical transition temperature of a high temperature superconducting coated wire using lino-pin. will be.

In general, the methods of measuring the critical transition temperature (Tc) and the critical current (Ic), which are one of the basic properties of superconductors, include a non-contact magnetization method and a 4-terminal contact method. The 4-terminal method is usually a direct contact method. It is used. However, for direct contact, the measurement is performed by connecting four terminals directly by the general soldering method. It is very difficult to recover the solder specimen used after the measurement without any damage. In particular, the 4-terminal soldering of thin-film specimens of the YBCO-coated wire type is not easy, and it is very difficult to measure the relatively small size of high-temperature superconducting (YBCO) thin film specimens by soldering.

The high temperature PIT-Bi2223 superconducting wires, now known as most low temperature superconducting wires and the first generation of high temperature superconducting wires, can easily solve the problem of contacting current and voltage terminals by soldering, or in some cases, clip-type devices with high contact rates. Using the 4-terminal method, the critical current (Ic) and the critical transition temperature (Tc) can be easily measured. However, high temperature superconducting (YBCO, etc.) coated wires, known as second-generation wire rods, are almost impossible because they damage the specimens when soldering, and the clip-type contact may damage the high temperature superconducting coatings. The measurement time due to the use of over temperature controller is very long.

The present invention has been developed to solve the above-described problems, at the critical transition temperature (Tc) and the liquid nitrogen temperature (77K) of the high temperature superconducting (YBCO, etc.) coated wire using Reno-pin It is an object of the present invention to provide a measuring device capable of measuring the critical current Ic easily and quickly and without damage to a specimen by a four-terminal contact method.

According to an aspect of the present invention, there is provided an apparatus for measuring characteristics of a high temperature superconducting coated wire, including: a specimen mounting structure on which a plurality of high temperature superconducting coated thin film wire specimens are mounted and a temperature sensor for measuring temperature; A specimen characteristic measuring structure equipped with a current supply terminal for supplying a current to the specimen and fixing the specimen on the specimen mounting structure, respectively, and a voltage terminal for measuring the voltage of the specimen; It characterized in that it comprises a support and moving means for supporting the specimen mounting structure in which the specimens are mounted by the specimen characteristic measurement structure, vertical and vertical movement while maintaining the horizontal.

An apparatus for measuring the properties of a high temperature superconducting coated wire using a lino-pin according to the present invention includes: a low temperature liquid container containing a liquid of a predetermined temperature and a property measuring device of the high temperature superconducting coated wire; Power supply means for supplying current to the current supply terminal; Voltage measuring means for measuring a voltage from the voltage terminal; Display means for displaying a detected temperature from said temperature sensor; And computer means for processing characteristics between the supply current in the current supply means and the measured voltage of the voltage measuring means, and between the detected temperature of the temperature sensor and the measured voltage of the voltage measuring means. It is done.

The liquid at a predetermined temperature is liquid nitrogen at a predetermined temperature (77 K degrees), and the computer means may include the specimens of the specimen mounting structure in the liquid nitrogen by the supporting and moving means so that the specimens are at the predetermined temperature (77 K). The critical current is measured by processing the characteristic between the supply current and the measured voltage in the state of FIG. 2), and the specimens of the specimen mounting structure are contained on the surface of the liquid nitrogen by the supporting and moving means. As the temperature of the liquid nitrogen evaporates from the predetermined temperature (77 K degrees), the specimen transitions to a temperature higher than the predetermined temperature (150 K degrees) while processing a characteristic between the detection temperature and the measured voltage to transition the critical transition. Measure the temperature.

In addition, the voltage terminal is made of any one selected from a Leno-pin and a Pogo-pin.

In addition, the portion of the current terminal in contact with the specimen is formed larger than the through-hole of the current terminal so that the specimen characteristic measuring structure to maintain a constant distance from the contact portion of the specimen, the predetermined interval of the reno-pin It is preferable to be in the moving length range of a contact part.

In addition, the specimen characteristic measurement structure is preferably made of a fiberglass reinforced plastic (FRP) material.

In addition, the specimen characteristic measurement structure has a plurality of through-holes formed on the outside thereof, it is preferable that the specimen characteristic measurement structure is connected to the specimen mounting structure by a screw through the through hole.

In addition, the specimen mounting structure is equipped with a plurality of specimens and the specimen characteristic measurement structures and the temperature sensor for measuring and fixing the characteristics of the specimen, the bottom of the specimen mounting structure is fixed to the bottom and the specimen A power line separated from the mounting structure in a direction perpendicular to the mounting structure, the power line having a plurality of holes formed therein for connecting the power lines connected to the specimen characteristic measurement structures to the specimen characteristic measurement structures It is preferable that the structure is installed.

In addition, the specimen mounting structure and the power line separating structure is preferably made of a metal and FRP material. The metal is preferably any one selected from Ni, Al, and Cu.

In addition, the temperature sensor is preferably made of at least a Senox (Cernox) temperature sensor installed spaced apart from each other on the specimen mounting structure.

In addition, the support and the movement means has a base formed with a hole in each corner portion and a groove in the center, a plurality of guide rods coupled to the corner hole of the base and read out perpendicularly to the base, respectively, the center groove The lower portion is coupled to, and read out perpendicularly to the base, the portion coupled to the central groove comprises a long screw that is not formed with a thread, the specimen mounting structure according to the rotation of the long screw It is preferably moved perpendicularly to the base of the support and the moving means.

In the present invention, the four-terminal method is introduced in measuring the critical current and the critical transition temperature of the high temperature superconducting (YBCO) coated thin film wire, but the contact terminal of the existing terminals, the current terminal takes the form of pressing on the thin film specimen. This also prevents and locks the specimens, and the voltage terminals use a new type of contact, the Reno-pin. The Reno-Pin contacts the specimen and the Reno-Pin with the force of the spring at the contact point, allowing the free and easy measurement of the critical current (Ic) and the critical transition temperature (Tc) without damage to the specimen. In addition, the measuring device of the present invention is to measure the critical current of many high temperature superconducting (YBCO, etc.) coated wires in the form of a thin film. The critical transition temperature measurement device is a thin film type high temperature superconductor (YBCO, etc.) coated specimens with a temperature rise scan from 77K to 150K due to natural vaporization of liquid nitrogen using only a temperature monitor without a temperature controller. Configure a device to quickly and easily measure the critical transition temperature.

1 is a front configuration diagram of a contact 4-terminal structure;

2 is a plan view of a contact 4-terminal structure;

Figure 3 is a four-terminal contact shape of the high temperature superconductivity (YBCO, etc.) coating specimen when the critical current (Ic) and the critical transition temperature (Tc) of the high temperature superconducting coating wire measurement;

4 is attached to the specimen attachment plate to measure the critical current (Ic) and the critical transition temperature (Tc), etc. at the same time the six specimens of the thin film form using the combined structure constructed from Figures 1, 2 and 3 Fiberglass Reinforced Plastic (FRP) rods and their three-dimensional shape to distinguish the power terminals (current and voltage) of each specimen from each other,

5 is an enlarged view of the metal and the FRP plate of FIG.

FIG. 6 is a view illustrating a structure for vertically moving and maintaining the specimen attachment plate of FIG. 5 in liquid nitrogen; FIG.

FIG. 7 is a conceptual diagram illustrating Ic and Tc measurement of high-temperature superconducting (YBCO, etc.) thin film wires using a 4-terminal method using reeno-pin.

** Explanation of symbols for main parts of drawings **

11a, 11b: Copper bar [(+) current terminal and (-) current terminal]

12a, 12b: Reno pin (voltage terminal) 13a, 13b: Through hole

14: Fiberglass Reinforced Plastic (FRP) Structure

15a, 15b: part to be in contact with the specimen of high temperature superconducting coating

21: FRP structure 22a, 22b, 22c, 22d: through hole

23a, 23b: through hole 24a, 24b: through hole

31: high temperature superconducting coating specimen 32: Ag -coated shape

33a, 33b: specimen holding part 34a, 34b: reno-pin contact

41: FRP rods 41a, 41b, 41c: through holes

42: FRP rods 42a, 42b, 42c: through holes

43, 44: FRP rod attachment portion 43a, 43b: through hole

44a, 44b: through hole 45: metal and FRP plate

51: metal and FRP plate 52a, 52b: screw hole

52c, 52d: screw holes 53a, 53b, 53c, 53d: through holes

54: 4-terminal structure attachment portion 54a, 54b, 54c, 54d: screw hole

55a, 55b: Temperature sensor 56: Screw hole

61a, 61b, 61c, 61d: metal and FRP guide rods

62: screw 63: metal and FRP plate

64: hole 65a, 65b, 65c, 65d: screw hole

71: cryostat 72: liquid nitrogen

Hereinafter, with reference to the accompanying drawings for the device for measuring the properties of the high-temperature superconducting coating specimens according to a preferred embodiment of the present invention.

As a characteristic of the high temperature superconducting (YBCO, etc.) coated thin film wire, the critical current (Ic) measuring device configuration at the superconducting critical temperature (Tc) and 77K is mainly composed of the following three configurations.

The first is a power supply that supplies a direct current, a nano-voltmeter that measures the voltage across the Reno-pins at both ends, and Cenox next to the specimen. It is the configuration of the temperature monitor that reads the temperature of the specimen through temperature compensation through the temperature sensor.

Second is the construction of a computer that can obtain current (I) -voltage (V) and temperature (T) -voltage (V) measurement curves using LabVIEW as processing of the measured data.

Third, as described above, in measuring the critical current (Ic) and the critical transition temperature (Tc) of many high temperature superconducting (YBCO) coated thin film wires, it is possible to quickly and easily target the thin film wires without causing external and internal damage. Achievement of the critical current and critical transition temperature of the high temperature superconducting coating wire of the new method which can be achieved by the present invention, which can be achieved, is the components of FIGS. 1 to 7.

Figure 1 shows a front view of a contact four-terminal structure.

In the figure, reference numerals 11a and 11b denote copper rods having a diameter of, for example, 1.5 mm, and act as positive and negative current terminals, respectively. In addition, reference numerals 12a and 12b represent a reno-pin having a diameter of, for example, 1.3 mm, and a voltage terminal having a distance between both ends, for example, 3 mm. In addition, reference numeral 14 denotes a fiberglass reinforced plastic (FRP) structure of, for example, 40 × ²⁵ × 10 mm ³ to support the terminals 11a, 11b, 12a, and 12b, and reference numerals 13a and 13b represent diameters formed in the FRP structure. For example, it is a through hole of 3.1 mm. In addition, reference numerals 15a and 15b are portions to be in contact with the high temperature superconducting (YBCO) coated specimen positioned below the FRP structure 14 of the current terminals 11a and 11b, and are shown in a three-dimensional shape.

2 is a plan view of a contact four-terminal structure.

In the figure, reference numeral 21 denotes an FRP structure, for example, 40 × ²⁵ × 10 mm ^3, for supporting terminals, reference numerals 22a, 22b, 22c, and 22d denote through-holes of 3.1 mm in diameter, and in FIG. Corresponding to 13b, reference numerals 23a and 23b are through-holes having a diameter of 1.5 mm to which copper rods of current terminals 11a and 11b can be fixed, and reference numerals 24a and 24b are renos as voltage terminals 12a and 12b. -The through-hole, for example, 3.1 mm, in which the pin can be fixed.

Figure 3 is a four-terminal contact shape of the high temperature superconductivity (YBCO, etc.) coated specimen when measuring the grain current (Ic) and critical transition temperature (Tc).

In the figure, reference numeral 31 denotes a high temperature superconducting (YBCO, etc.) coated specimen deposited on a single crystal and a metal substrate, and reference numeral 32 denotes Ag on a high temperature superconducting (YBCO, etc.) coated specimen to minimize the ohmic contact problem. -It looks like a coating. In addition, the reference numeral 33a and 33b is a portion 15b to be in contact with the high temperature superconducting (YBCO) coated specimens of the current terminals (11a, 11b) in Figure 1 is a portion to contact the high temperature superconducting (YBCO) coated specimen to fix the specimen to be. Further, reference numerals 34a and 34b denote portions where the reno-pin, which is the voltage terminals 12a and 12b, is in contact with the YBCO coated specimen.

4 is a specimen attachment plate to measure the critical current (Ic) and the critical transition temperature (Tc), etc. for the six specimens of the thin film form at the same time by using the structure of the combination structure from Figures 1, 2 and 3 For example, 250 x ²⁵ x 10 mm ³ sized FRP rods and their three-dimensional shapes for distinguishing the power terminals (current and voltage) of the specimens from each other attached to (45).

In the figure, reference numeral 41 denotes each of the power terminal lines of the specimens in order to seamlessly connect the power terminal lines of the specimens (Sample 1, 2, 3) of the specimen attachment plate 45 in the liquid nitrogen with an external measuring instrument. For example, a 250x25x10mm ³ size FRP rod. In addition, reference numerals 41a, 41b, and 41c are used to distinguish the power terminals (current terminals and voltage terminals) of the measurement specimens (Sample 1, Specimen 2, and Specimen 3), respectively, from each other. to be.

In addition, reference numeral 42 denotes the power terminal lines of the specimens (Sample 4, Specimen 5, Specimen 6) of the specimen attachment plate 45 in the liquid nitrogen to separate the power terminal lines of the specimens from each other for smooth connection with an external measuring instrument. For example a 250x25x10mm ³ size FRP rod. In addition, reference numerals 42a, 42b, and 42c are through holes each having a diameter of 10 mm to distinguish the power terminals (current terminals and voltage terminals) of the measurement specimens (Sample 4, Specimen 5, Specimen 6) from each other.

43 and 44 are attached to the FRP rods 41 and 42 perpendicularly to the specimen attachment plate 45, and 43a and 43b are attached to the FRP rod 41 and the attachment structure ( 43) consists of a body having a shape of “a”, which is a through hole having a diameter of, for example, 5 mm for fixing the body to the specimen attachment plate 45. In addition, the reference numeral 44a and 44b is the FRP rod 42 and the attachment structure 44 is composed of a body of the "b" shape, the diameter for connecting and fixing this body to the specimen attachment plate 45 is an example. For example, it is a through hole that is 5mm in size.

In addition, the specimen attachment plate 45 is a critical current (Ic) and the threshold at the same time for the six specimens (Sample 1 ~ Specimen 6) in the form of a thin film using the structure of the combination configuration from Figures 1, 2 and 3 Examples of the specimens to which the specimens can be attached to measure the transition temperature (Tc) and the like are metals (nickel, aluminum, copper, etc.) and FRP plates having a size of 300x60x10 mm ³ .

FIG. 5 is an enlarged view of the specimen plate 45 of FIG. 4.

In the same figure, reference numeral 51 denotes a critical current Ic and a critical transition temperature simultaneously for six specimens (Sample 1 to Specimen 6) in the form of a thin film using the structure constructed from FIGS. 1, 2 and 3 simultaneously. Examples are ³⁰⁰ x 60 x ¹⁰ mm ³ metals (nickel, aluminum, copper, etc.) and FRP plates on which specimens can be attached to measure (Tc).

In addition, reference numerals 52a and 52b are screw holes for fixing the FRP rod 41 and the attachment structure 43 constituting the "-" shaped body with screws through the through holes 43a and 43b.

Reference numerals 52c and 52d denote screw holes capable of screwing the FRP rod 42 and the attachment structure 44 that constitute the " b " shape through the through holes 44a and 44b.

Reference numerals 53a, 53b, 53c, and 53d denote through holes having a diameter of 7 mm. Reference numeral 54 denotes a portion to which the apparatus shown in FIG. 2 is to be attached using the structure structured from FIGS. 1, 2, and 3. Further, reference numerals 54a, 54b, 54c, and 54d denote screw holes having a diameter of 3 mm for fixing the structure assembled from FIGS. 1, 2, and 3 to the specimen attachment plate 51. Further, reference numerals 55a and 55b denote Cernox temperature sensors. Reference numeral 56 denotes a screw hole of 7 mm in diameter for vertical movement of the specimen attachment plate 51 in the liquid nitrogen.

FIG. 6 is a view illustrating a structure for vertically moving the specimen attachment plate 51 of FIG. 5 in liquid nitrogen.

In the same figure, reference numerals 61a, 61b, 61c, and 61d are used for vertical movement while the composite structure of the specimen attachment plate 51 is horizontal through the through holes 53a, 53b, 53c, and 53d having a diameter of 7 mm. As a structure, the bottom is threaded and the top is a conical metal and FRP guide rod.

In addition, reference numeral 62 denotes a long screw for vertical movement while being horizontal through a screw hole 56 having a diameter of 7 mm. Reference numeral 63 denotes, for example, 300x60x10 mm ³ metal (nickel, aluminum, copper, etc.) and FRP plate material capable of supporting the guide rods 61a, 61b, 61c, 61d and the long screw 62. Further, reference numeral 64 denotes a hole having a diameter of about 10 mm and a depth of about 5 mm, for example, at which the end of the long screw 62, that is, the threadless portion, can be rotated well.

Reference numerals 65a, 65b, 65c, and 65d denote screw holes having a diameter of, for example, 6 mm to which the guide rods 61a, 61b, 61c, and 61d can be fixed.

7 is a conceptual diagram of the critical current (Ic) and the critical transition temperature (Tc) measurement configuration of the high-temperature superconducting (YBCO, etc.) coated thin film wires using a 4-terminal method using the Leno-pin. In the figure, reference numeral 71 denotes a low temperature container (Cryostat) capable of storing liquid nitrogen, and 72 denotes liquid nitrogen contained in the container 71.

When the high temperature superconducting (YBCO, etc.) coated thin film wires to measure the critical current Ic at 77 K are prepared, the current terminals 11a and 11b are connected to a power supply as shown in FIG. Supply a DC power supply and connect a nano-voltmeter to the voltage terminals 12a and 12b to measure the voltage.

The prepared high temperature superconducting (YBCO, etc.) coated thin film wire is Ag-coated in the shape of FIG. 3 to improve ohmic contact, and the Ag-coated wire is placed on the first position shown in FIG. As shown in FIG. 5A, the contact surfaces of the current terminals 11a and 11b are positioned at the positions 33a and 33b on the Ag-coated wire, and the reno-pin voltage terminals 12a and 12b are positioned at the positions 34a and 34b. After contacting, screw the screw through the through holes 22a, 22b, 22c and 22d of FIG. 2 and use the screwdriver to screw holes 54a, 54b, 54c and 54d of FIG. Tighten. At this time, the thin film specimens are fixed by contacting the current terminals 11a and 11b with the screw tightening force to the 33a and 33b. In this way it is possible to attach the specimens 2, 3, 4, 5, 6 and the like of FIG. The wires of the power terminals of each of the specimens [1, 2, 3, 4, 5, 6 in FIG. 4] are respectively separated so that the power wires of the first specimen pass through the holes 41a as shown in FIG. The power wires of the second specimen pass through the holes 41b, the power wires of the third specimen pass through the holes 41c, the power wires of the fourth specimen pass through the holes 42c, The power wires of the fifth specimen pass through the holes 42b, and the power wires of the sixth specimen pass through the holes 42a.

The critical current (Ic) and the critical transition temperature (Tc) measuring device as shown in FIG. 4 prepared as described above is kept at least so that the specimen attachment plate 45 is completely contained in liquid nitrogen, and first, when the liquid nitrogen 77K temperature is stabilized, the critical current (Ic) Start the measurement.

After measurement of the critical current (Ic), to measure the critical transition temperature (Tc) using a Senox temperature sensor installed at positions 55a and 55b to read the temperature of the specimen and the temperature corrected through the temperature monitor Have a measurement.

The method for measuring the critical transition temperature (Tc) is placed in the liquid nitrogen cold container of the type shown in FIG. After allowing the through holes 53a, 53b, 53c, 53d of FIG. 5 to enter the copper rods 61a, 61b, 61c, 61d of FIG. 7, the long screw 62 through the screw hole 56 7 allows the specimen mounting plate 51 of FIG. 7 to move freely vertically, initially to be held in liquid nitrogen as when the critical current Ic is measured, and when the 77K temperature is stabilized, the screw 62 is After the specimen is attached to the plate 51 to keep the surface of the liquid nitrogen horizontally, the critical transition temperature (Tc) measurement is started. At this time, the liquid nitrogen is naturally vaporized from the 77K surface temperature, the temperature of the temperature of the surface of the specimen plate 51 is increased to about 150K by measuring the voltage according to the temperature scan through the Senox temperature sensor (55a, 55b) It is possible to quickly measure the critical transition temperature (Tc) of high temperature superconducting (YBCO, etc.) coated wires.

Critical current (Ic) measurement at 77K of all high-temperature superconducting wires other than YBCO-coated wire in the form of thin films that do not want to be damaged and preserve the original form of the specimen and critical transition temperature (Tc) of high-temperature superconducting thin film specimens Area) can be used for the purpose of quickly characterizing many thin film specimens without damaging the specimens. 8 and 9 show examples of the critical current (Ic) and the critical transition temperature (Tc) measurement as a measurement example of the YBCO coated specimen.

In the above specific embodiment, only the Leno-pin is referred to as the contact terminal, but instead, a Pogo-pin may be used instead.

On the other hand, the present invention is not limited to the above-described typical preferred embodiment, it can be carried out in various ways without departing from the gist of the present invention various modifications, changes, substitutions or additions in the art Anyone who has this can easily understand it. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described in detail above, the present invention has the following effects.

First, the critical current (Ic) at 77K of the specimens and the critical transition temperature of the specimens made by using a simple measuring device using a reno-pin as a critical current (Ic) measuring device of a high temperature superconducting (YBCO, etc.) coated thin film wire. (Tc) can be measured quickly, and since it does not cause any damage to the inside or outside of the thin film specimen, the same specimen can be used consistently to investigate other superconducting properties and basic properties.

Second, a simple measuring device using Leeno-pin is used as a critical transition temperature (Tc) measuring device for high temperature superconducting (YBCO, etc.) coated thin film wires, instead of using a temperature controller. Using this convenient temperature monitor alone, you can measure temperature and quickly and easily measure the critical transition temperature (Tc) according to the temperature scan.

Claims (20)

A specimen mounting structure in which a plurality of high temperature superconducting coating thin film wire specimens are mounted and a temperature sensor for measuring temperature is mounted; A specimen characteristic measuring structure equipped with a current supply terminal for supplying a current to the specimen and fixing the specimen on the specimen mounting structure, respectively, and a voltage terminal for measuring the voltage of the specimen; A high temperature superconducting coating wire using lino-pins comprising support and moving means for supporting the specimen mounting structure on which the specimens are mounted by the specimen characteristic measurement structure and allowing vertical movement vertically while maintaining horizontality. Device for the measurement of characteristics. The method of claim 1, A low temperature liquid container accommodating a liquid at a predetermined temperature and accommodating a characteristic measuring device of the high temperature superconducting coated wire rod; Power supply means for supplying current to the current supply terminal; Voltage measuring means for measuring a voltage from the voltage terminal; Display means for displaying a detected temperature from said temperature sensor; And computer means for processing the characteristic between the supply current in the current supply means and the measured voltage of the voltage measuring means and the characteristic between the detected temperature of the temperature sensor and the measured voltage of the voltage measuring means. Characteristic measuring apparatus of high temperature superconducting coating wire using lino-pin. The method of claim 2, The liquid at a predetermined temperature is liquid nitrogen at a predetermined temperature, The computer means measures the critical current by processing the characteristic between the supply current and the measured voltage in the state that the specimens of the specimen mounting structure is contained in the liquid nitrogen by the support and movement means in the specimen to the predetermined temperature and The temperature of the specimen from the predetermined temperature to the temperature higher than the predetermined temperature in the specimen as the liquid nitrogen vaporizes while the specimens of the specimen mounting structure are contained on the surface of the liquid nitrogen by the supporting and moving means. And measuring a critical transition temperature by processing a characteristic between the detected temperature and the measured voltage while scanning a temperature. The method of claim 3, The predetermined temperature is 77K degrees, the temperature higher than the predetermined temperature is 150K degrees characterized in that the apparatus for measuring the characteristics of the high temperature superconducting coating wire using the reno-pin. The method according to claim 1, wherein The voltage terminal is a characteristic measurement apparatus of the high-temperature superconducting coating wire, characterized in that consisting of a reno-pin (Leeno-pin). The method of claim 5, The portion of the current terminal in contact with the specimen is formed to be larger than the through hole of the current terminal so that the specimen characteristic measuring structure maintains a constant distance from the contact portion of the specimen, the predetermined interval is the contact portion of the reno-pin Characteristic measuring apparatus of the high-temperature superconducting coating wire using lino-pin, characterized in that the movement length range. The method according to any one of claims 1 to 3, The test piece characteristics measuring structure is characterized in that the FRP (Fiberglass Reinforced Plastic) material characterized in that the high-temperature superconducting coating wires using the reno-pin. The method of claim 5, The specimen characteristic measuring structure has a plurality of through-holes formed on the outside thereof, through which the specimen characteristic measuring structure is screwed to the specimen mounting structure, characterized in that the high-temperature superconducting coating wire using the reno-pin Characteristics measuring device. The method of claim 8, The specimen mounting structure is equipped with a plurality of specimens and the specimen characteristic measurement structures and the temperature sensor for measuring and fixing the characteristics of the specimen, Both sides of the specimen mounting structure have their bottoms fixed and protrudingly mounted in a direction perpendicular to the specimen mounting structure, and the protruding portions of power lines connected to the specimen characteristic measurement structures for each specimen characteristic measurement structure. Apparatus for measuring characteristics of high-temperature superconducting coating wires using a reno-pin, characterized in that a power line separating structure is provided with a plurality of holes for separating and connecting. The method of claim 9, The specimen mounting structure is a device for measuring the properties of high-temperature superconducting coated wire using a lino-pin, characterized in that the metal and FRP (Fiberglass Reinforced Plastic) material. The method of claim 10, The metal is Ni, Al, Cu characterized in that any one selected from the properties of the high temperature superconducting coating wire using a lino-pin. The method of claim 9, The power line separating structure is a device for measuring the characteristics of a high temperature superconducting coating wire using a reno-pin, characterized in that the metal and FRP (Fiberglass Reinforced Plastic) material. The method of claim 12, The metal is Ni, Al, Cu characterized in that any one selected from the properties of the high temperature superconducting coating wire using a lino-pin. The method of claim 9, The temperature sensor is a device for measuring the characteristics of the high-temperature superconducting coating wire using a lino-pin, characterized in that consisting of at least a Senox (Cernox) temperature sensor installed spaced apart from each other on the specimen mounting structure. The method of claim 9, The support and the movement means has a base formed with a hole in each corner portion and a groove in the center thereof, A plurality of guide rods coupled to corner edges of the base and read out perpendicularly to the base; The lower portion is coupled to the central groove, and read out perpendicularly to the base. The portion coupled to the central groove includes a long screw that is not formed with a thread. Apparatus for measuring the properties of coated wire. The power line separating structure is a device for measuring the properties of a high temperature superconducting coating wire using a reno-pin, characterized in that the metal and FRP (Fiberglass Reinforced Plastic) material. The method of claim 15, The base is a device for measuring the properties of a high temperature superconducting coating wire using a reno-pin, characterized in that the metal and FRP (Fiberglass Reinforced Plastic) material. The method of claim 16, The metal is Ni, Al, Cu characterized in that any one selected from the properties of the high temperature superconducting coating wire using a lino-pin. The method of claim 15, The guide rod is a device for measuring the properties of a high temperature superconducting coating wire using a reno-pin, characterized in that the metal and FRP (Fiberglass Reinforced Plastic) material. The method of claim 18, The metal is Ni, Al, Cu characterized in that any one selected from the properties of the high temperature superconducting coating wire using a lino-pin. The method of claim 15, In the corner portion of the specimen mounting structure is formed a plurality of holes for fitting the guide rods of the support and the moving means for maintaining horizontal during vertical movement of the specimen mounting structure, the center portion of the specimen mounting structure A screw hole is formed in which the long screw of the moving means is inserted, Apparatus for measuring the properties of a high temperature superconducting coated wire using a reno-pin, characterized in that the specimen mounting structure is moved vertically with respect to the base of the support and the moving means according to the rotation of the long screw.