KR102278099B1 - 3Layers Structure Micro Crack Measurement Device - Google Patents

Abstract

Disclosed is a three-layered structure microcrack measurement apparatus. According to an embodiment of the present invention, the three-layered structure microcrack measurement apparatus includes: a placement part placed in an upper part of a measurement target surface in which a microcrack is formed, having a plate-shaped structure with a predetermined area in a lateral direction, and having a rail formed on an upper side to be fastened through sliding in one direction; a pair of measurement parts fastened with the rail of the placement part to be slidable, having measurement gradations formed on an upper side, and fastened to be slidable independently from each other in a direction in which the measurement gradations are formed; and a decoding part mounted in an upper part of the placement part, equipped with a magnifying lens spaced apart from the measurement gradations of the pair of measurement parts by a predetermined height, and having a light generation member mounted therein to radiate light to the measurement target surface. According to the present invention, provided is the three-layered structure microcrack measurement apparatus including components capable of accurately and easily measuring the width of a microcrack, and facilitating measurement work even in a low-illuminance environment.

Description

Triple Structure Micro Crack Measurement Device {3Layers Structure Micro Crack Measurement Device}

The present invention relates to an apparatus for measuring microcracks, and more particularly, a triple structure microcrack including a configuration that can easily and accurately measure the width of a microcrack, and can easily perform a measurement operation even in a low-illuminance environment It is about the measuring device.

In general, the cause of cracks in civil engineering structures is caused by various causes, such as drying shrinkage of the structure, excessive stress, or material problems.

Among these cracks, there are cracks that do not affect the structural safety of the structure, but some cracks cause structural defects of the structure and eventually cause the collapse of the structure.

Therefore, for the safety of the structure, the occurrence of cracks must be investigated, and cracks in progress must be observed precisely and carefully.

However, concrete-related facilities are not in a convenient location for investigation, but there are many places where lighting facilities such as the basement are insufficient or access using auxiliary equipment such as ladders is required.

Therefore, when investigating cracks in such a place, equipment such as a measuring device (cracker) having the structure shown in FIG. 1, lighting, and a magnifying glass is required.

At this time, with a cracker and a magnifying glass in both hands, the lighting is inconvenient to work with, such as having to attach a hat or use a separate lighting device, and the bulky equipment makes it difficult to carry. There was a problem in that the follow-up work was not systematic.

Therefore, there is a need for a technique capable of solving the above-mentioned problems according to the prior art.

Korean Patent Application Laid-Open No. 10-2007-0076996 (published on July 25, 2007)

It is an object of the present invention to provide a triple structure microcrack measuring apparatus including a configuration that can easily and accurately measure the width of the microcrack, and can easily perform a measurement operation even in a low-illuminance environment.

A microcrack measuring device according to an aspect of the present invention for achieving this object is mounted on the upper portion of the measurement target surface on which the microcrack is generated, has a plate-shaped structure having a predetermined width laterally, and is coupled by sliding on the upper surface in one direction. Mounting part with possible rails; A pair of measuring parts that are slidably bound to the rail of the mounting part, have measuring scales formed on the surface of the upper measuring plate coated with a luminescent material, and are bound to be slidably movable independently of each other along the forming direction of the measuring scales. ; and a reading unit mounted on the mounting portion, spaced apart by a predetermined height from the measurement scale of the pair of measurement units, mounted with a magnifying lens, and equipped with a light generating member for irradiating light to the measurement target surface; can

In one embodiment of the present invention, the cradle may be configured to include a pair of first and second cradles disposed on both sides around the microcrack of the measurement target surface.

In this case, the first cradle, a plate-shaped structure mounted on the upper surface of the measurement target surface, a first fixing part to which a contact member in close contact with the measurement target surface is mounted on the lower surface; and a first rail extending by a predetermined length to one side of the first fixing part and having a structure capable of accommodating one of the pair of measuring parts.

In addition, the second holder, a plate-shaped structure mounted on the upper surface of the measurement target surface, the second fixing portion is mounted on the lower surface of the contact member in close contact with the measurement target surface; and a second rail extending to one side of the second fixing part by a predetermined length to accommodate one of the pair of measuring parts.

In one embodiment of the present invention, the pair of measuring units are mounted adjacent to the first rail of the first fixing unit and have a plate-shaped structure that can be slidably coupled to the second rail, and the upper surface in contact with the second sliding unit a first sliding portion having a measurement scale formed thereon; and a second sliding part mounted adjacent to the second rail of the second fixing part, having a plate-shaped structure that can be slidably coupled to the first rail, and having a measurement scale formed on an upper surface in contact with the first sliding part; can

In this case, the pair of measurement units may be configured to include a transparent material disposed on a portion corresponding to the measurement object surface so that the measurement object surface located below can be observed.

In addition, the measurement scale may be formed on a transparent material disposed on a portion corresponding to the measurement target surface.

In an embodiment of the present invention, the first sliding part may be coupled with the first fixing part so that the position can be changed by sliding by a predetermined distance from the first fixing part to the second rail direction.

In this case, a tooth structure is continuously formed on one side of the first sliding part bound to the first fixing part, and a rotation dial is provided on one side of the first fixing part to be rotatable in engagement with the tooth structure of the first sliding part. It is mounted, and a position detection sensor is mounted on one side of the first sliding part in contact with the second sliding part, and the first sliding part and the second sliding part are mounted on the upper surface of the mounting part through the position change value detected from the position detection sensor. An output unit for outputting a separation distance may be mounted.

In an embodiment of the present invention, the second sliding part may be coupled to the second fixing part so as to be slid by a predetermined distance from the second fixing part in the direction of the first rail to change the position.

In this case, a tooth structure is continuously formed on one side of the second sliding part bound to the second fixing part, and a rotation dial is rotatably engaged with the tooth structure of the second sliding part on one side of the second fixing part. It is mounted, and a position detection sensor is mounted on one side of the second sliding part in contact with the first sliding part, and the second sliding part and the first sliding part through the position change value detected by the position detection sensor on the upper surface of the mounting part. An output unit for outputting a separation distance may be mounted.

In one embodiment of the present invention, a plurality of through holes through which air and light can enter from the outside may be formed on one side of the reading unit.

In one embodiment of the present invention, the reading unit, a block-type cradle of a box-type structure mounted to have a predetermined height on the upper portion of the cradle; and a hemispherical cradle that is detachably mounted on the upper part of the block-type cradle, is made of a transparent material so that the measurement target surface located at the lower part can be observed, and has a structure in which a magnifying lens is detachably mounted on the upper part; can be configuration.

In one embodiment of the present invention, the light generating member mounted on the reading unit may irradiate light to the measuring plate and the measuring scale formed in the measuring unit.

In an embodiment of the present invention, the magnifying lens may be a lens having a specific magnification capable of magnifying microcracks and measurement scales of the measurement target surface.

In one embodiment of the present invention, the micro-crack measuring device is mounted on one side of the mounting portion, the illuminance detection sensor unit for detecting the external illuminance; a mounted lens reading unit mounted adjacent to the magnifying lens of the reading unit and detecting a magnification of the mounted magnifying lens; and a control unit mounted on one side of the mounting unit and configured to change the degree of illuminance of light emitted from the light generating member of the reading unit based on data detected through the illumination detection sensor unit and the mounted lens reading unit; .

As described above, according to the apparatus for measuring microcracks of the present invention, by having a mounting part having a rail of a specific structure, a pair of measuring parts having a measuring scale, a reading part equipped with a magnifying lens and a light generating member, It is possible to provide a microcrack measuring device having a triple structure including a configuration that can easily and accurately measure the width of a crack and can easily perform a measurement operation even in a low-illuminance environment.

In addition, according to the microcrack measuring device of the present invention, expensive parts or accessories are not included, so that the production cost can be significantly lowered in manufacturing the microcrack measuring device, and as a result, the coarse and It can secure price competitiveness and quality competitiveness against simple domestic/Chinese plastic disposable flat products, and it can also secure product competitiveness against imported products.

In addition, according to the apparatus for measuring microcracks of the present invention, the existing vernier calipers or electronic crack measuring devices are periodically subjected to a calibration procedure to ensure the accuracy of the device after a certain period of time, the microcracks measuring apparatus of the present invention is periodically There is no need for a formal correction procedure, but only the magnifying lens can be replaced with a lens with an appropriate magnification, so the convenience can be maximized.

In addition, according to the microcrack measuring apparatus of the present invention, the first and second holding parts of a specific structure are arranged on both sides around the microcrack of the measurement target surface, and a close contact member of a specific structure, a fixing part, and a rail are provided. By doing so, it is possible to provide a device for measuring microcracks that can be easily disposed on the measurement target surface and stably fixed using a close contact member, thereby ensuring the efficiency and measurement accuracy of the measurement operation.

In addition, according to the microcrack measuring device of the present invention, it is possible to replace the crack measuring device of an expensive building structure, and the precision of the measurement value of the development measuring device, price economics, and ease of use. can greatly contribute to the expansion.

In addition, according to the apparatus for measuring microcracks of the present invention, a transparent material is placed on a portion corresponding to the measurement target surface, a measurement scale is formed on the transparent material coated with a luminescent material, and the light generated from the light generating member of the reading unit is measured. By irradiating the scale and the measurement surface, microcracks on the measurement surface can be clearly identified even in a low-illuminance environment or at a low-illuminance time. As a result, it is possible to ensure the efficiency and measurement accuracy of the measurement operation regardless of the surrounding illumination. A microcrack measuring device may be provided.

In addition, according to the apparatus for measuring microcracks of the present invention, a first sliding part having a measurement scale on the upper surface in contact with the second sliding part and a second sliding part having a measurement scale on the upper surface in contact with the first sliding part are provided, By changing the sliding position of the first sliding part to one side or changing the sliding position of the second sliding part to the other side, it is possible to easily measure the width of the microcrack, measuring the microcrack that can ensure the efficiency and measurement accuracy of the measurement operation device can be provided.

In addition, according to the microcrack measuring apparatus of the present invention, by forming a sawtooth structure of a specific structure at a measurement position, and placing a rotary dial, a position detection sensor and an output unit performing a specific role in a specific position, the first measurement operator's naked eye After checking the microcracks by , the first sliding part and the second sliding part are spaced apart from each other according to the microcracks, and the distance between the first sliding part and the second sliding part is digitized through the position detection sensor to detect the microcracks through the output unit. It is possible to obtain the width, so that it is possible to provide a microcrack measuring device that can ensure the efficiency of the measuring operation and the measuring accuracy.

In addition, according to the microcrack measuring device of the present invention, by having an illuminance detection sensor unit, a mounted lens reading unit, and a control unit performing a specific role, the illuminance suitable for microcrack measurement according to the illuminance of the environment in which the microcrack measuring device is installed After setting, by controlling the illuminance of the light irradiated from the light generating member by re-correcting the appropriate illuminance according to the size of the magnification of the mounted magnifying lens, the appropriate illuminance is automatically adjusted according to the surrounding illuminance and the size of the microcrack to be measured. As a result, it is possible to provide a microcrack measuring device that can ensure the efficiency and measurement accuracy of the measurement operation.

1 is a plan view showing a microcrack measuring apparatus according to the prior art.
2 is a front view showing an apparatus for measuring microcracks according to an embodiment of the present invention.
3 is a side view and a front view showing a state in which the magnifying lens of the reading unit of the microcrack measuring device shown in FIG. 2 is removed.
FIG. 4 is a vertical cross-sectional view showing a reading unit, a measuring unit, and a mounting unit of the microcrack measuring device shown in FIG. 2 .
FIG. 5 is a plan view showing a mounting part and a measuring part of the microcrack measuring apparatus shown in FIG. 2 .
6 is a rear view showing the microcrack measuring device shown in FIG.
7 is a plan view showing the second holder and the second sliding part of the microcrack measuring device shown in FIG. 5 .
8 is a plan view showing the first holder and the first sliding part of the microcrack measuring apparatus shown in FIG. 5 .
9 is an exploded view illustrating a state in which a pair of first and second cradles are bound to each other by a first sliding part and a second sliding part according to an embodiment of the present invention.
10 is a plan view illustrating a state in which a pair of first and second sliding parts are spaced apart from each other to measure the width of microcracks according to an embodiment of the present invention.
11 is a plan view illustrating a first holder and a first sliding unit according to another embodiment of the present invention.
12 is an exploded view showing an apparatus for measuring microcracks according to another embodiment of the present invention.
13 is a block diagram showing a control unit, a mounted lens reading unit, and an illuminance detection sensor unit added to a microcrack measuring device according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is said to be located "on" another member, this includes not only a case in which a member is in contact with another member but also a case in which another member exists between two members. Throughout this specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

2 is a front view showing a microcrack measuring apparatus according to an embodiment of the present invention is shown.

The microcrack measuring apparatus 100 according to this embodiment includes a mounting unit 110 having a rail 111 of a specific structure formed therein, a pair of measuring units 120 having a measuring scale 121 formed therein, and a magnifying lens 140 . and the light generating member 133 is equipped with the reading unit 130, so that the width of the microcrack can be easily and accurately measured, and a microscopic structure including a configuration that can easily perform a measurement operation even in a low-illuminance environment A crack measuring device may be provided.

The microcrack measuring apparatus 100 according to this embodiment is preferably made of an alkali-resistant PC (Poly Carbonite) material. Most of the building structures to be measured for cracks are reinforced concrete structures, which may cause damage to the microcrack measuring device 100 due to the alkaline properties of concrete. Therefore, in order to prevent such a problem, the microcrack measuring apparatus 100 according to the present embodiment is preferably made of an alkali-resistant PC (Poly Carbonite) material. In addition, in order to prevent damage to the microcrack measuring device 100 even in the hot weather of summer exceeding 40 degrees Celsius and the cold weather of -30 degrees Celsius in winter, the microcrack measuring device 100 made of heat-resistant material and cold-resistant material ) is preferred.

Specifically, the microcrack measuring apparatus 100 according to the present embodiment uses polycarbonate as a base material, so that accurate measurement can be performed in the poor environment and climatic conditions of the existing building. That is, the microcrack measuring apparatus 100 according to the present embodiment is preferably made of a material that should not be physically or chemically affected by the surrounding environment or conditions. In addition, the microcrack measuring device 100 is preferably made of a material having characteristics of strength, weather resistance, heat resistance, water absorption and chemical resistance. (Reference Table 1)

<Table 1>

Hereinafter, each configuration constituting the microcrack measuring apparatus 100 according to the present embodiment will be described in detail with reference to the drawings.

3 is a front view and a side view showing a state in which the magnifying lens of the reading unit of the microcrack measuring device shown in FIG. 2 is removed, and in FIG. 4 is a reading unit, a measuring unit and a microcrack measuring device shown in FIG. A vertical cross-sectional view showing a mounting part is shown, and FIG. 5 is a plan view showing a mounting part and a measuring part of the microcrack measuring device shown in FIG. 2 , and FIG. 6 is a microcrack measuring device shown in FIG. A rear view is shown.

Referring to these drawings, the mounting unit 110 according to the present embodiment is a configuration mounted on the upper portion of the measurement target surface 10 on which the microcrack 11 is generated, as shown in FIG. It is a plate-shaped structure having a predetermined area. In addition, a rail 111 capable of sliding in one direction is formed on the upper surface of the mounting unit 110 .

The mounting unit 110 according to the present embodiment may be made of a transparent polycarbonate plate having a thickness of 4 mm.

A pair of measuring units 120, as shown in FIG. 5, are configured to be slidably coupled to the rail 111 of the mounting unit 110, and a measuring scale 121 is formed on the upper surface, and , may be bound to be slidably movable independently of each other along the formation direction of the measurement scale 121 . The measuring scale is coated with a light emitting material on the measuring plate, so that the measuring scale can be read more accurately with the light emitted from the light generating member of the reading unit.

The measurement scale 121 according to the present embodiment may have a length of 30 mm left and right and a height of 15 mm above and below in which scales are engraved at 0.1 mm intervals. The measurement scale can be directly engraved on the base material, and in some cases, a separate engraved membrane or plate with the scale engraved on it can be used by bonding it on the base material.

As shown in FIG. 3 , the reading unit 130 is a configuration mounted on the upper portion of the measuring unit 120 , and has a semi-cylindrical or other height from the measurement scale 121 of the pair of measuring units 120 . The magnifying lens 140 is mounted near the apex of the cylindrical structure, and the light generating member 133 for irradiating light to the measurement target surface 10 may be mounted.

In this case, the magnifying lens 140 may be a planar plastic lens having a specific magnification capable of magnifying the microcracks of the measurement target surface and the measurement scale 121 .

Specifically, the magnification of the magnifying lens 140 may be 10 times, 15 times, or 20 times. In this case, the selection of the magnification of the magnifying lens 140 is preferably selected according to the size of the microcrack to be measured. When the magnifying lens 140 is properly selected, even microcracks having a width of 0.05 mm can be accurately read.

In addition, a plurality of through holes 134 through which light and air can enter from the outside may be formed on one side of the reading unit 130 . At this time, it is preferable that the reading unit 130 is made of a transparent material so that light can be irradiated from the outside to the inside, and in some cases, as shown in FIG. 3 , a plurality of through holes 134 are formed to It can allow light to enter.

As shown in FIGS. 2 and 3 , the reading unit 130 according to the present embodiment may have a configuration including a block-type holder 131 and a hemispherical holder 132 having a specific structure.

Specifically, the block-type cradle 131 may have a box-shaped structure mounted to have a predetermined height on the upper portion of the cradle. In addition, the hemispherical holder 132 is configured to be detachably mounted on the upper portion of the block-type holder 131 , and is made of a transparent material so that the measurement target surface located at the lower portion can be observed, and a magnifying lens 140 on the upper portion ) may be of a structure to be detachably mounted.

As shown in FIG. 3 , the light generating member 133 mounted on the aforementioned hemispherical holder 132 is irradiated with light into the block-type holder 131 , so that the light emitting material is coated on the measuring unit 120 . Light may be irradiated to the measuring plate and the measuring scale 121 .

FIG. 7 is a plan view showing the second cradle and the second sliding part of the microcrack measuring device shown in FIG. 5 , and FIG. 8 is the first cradle and the first sliding part of the microcrack measuring device shown in FIG. 5 . A plan view showing a part is shown, and in FIG. 9, a pair of first and second cradles according to an embodiment of the present invention are disassembled and assembled to show how they are bound to each other by the first sliding part and the second sliding part. The figure is shown. Also, FIG. 10 is a plan view showing a pair of first sliding parts and second sliding parts spaced apart from each other to measure the width of microcracks according to an embodiment of the present invention.

Referring to these drawings, the mounting unit 110 according to the present embodiment includes a pair of first and second mounting units 110a and 110b disposed on both sides around the microcrack of the measurement target surface. configuration that includes

Specifically, the first holder 110a is a plate-shaped structure mounted on the upper surface of the measurement target surface, and the first fixing part 112a to which the contact member 113 in close contact with the measurement target surface is mounted on the lower surface. It may be a structure that includes In addition, the first cradle 110a is extended by a predetermined length to one side of the first fixing part 112a and has a structure capable of accommodating one measuring part 120 among the pair of measuring parts 120 . It may have a structure including the first rail 111a.

The second cradle 110b has a plate-shaped structure mounted on the upper surface of the measurement target surface, and includes a second fixing part 112b on the lower surface of which the contact member 113 in close contact with the measurement target surface is mounted. can be In addition, the second cradle 110b is extended by a predetermined length to one side of the second fixing part 112b and has a structure capable of accommodating one measuring part 120 among the pair of measuring parts 120 . It may have a structure including two rails (111b).

In this case, according to the present embodiment, the first cradle 110a and the second cradle 110b of a specific structure are arranged on both sides around the microcrack of the measurement target surface, and the adhesion member 113 of a specific structure , by having a fixing part and a rail 111, it can be easily arranged on the measurement target surface and at the same time can be stably fixed using the contact member 113, measuring microcracks that can ensure the efficiency and measurement accuracy of the measurement operation device can be provided.

7 to 9 , the pair of measuring units 120 may be configured to include a first sliding unit 120a and a second sliding unit 120b having a specific structure.

Specifically, as shown in FIG. 8 , the first sliding part 120a according to this embodiment is a configuration mounted adjacent to the first rail 111a of the first fixing part 112a, and the second rail It has a plate-shaped structure that can be slidably bound to the 111b, and may have a structure in which a measurement scale 121 is formed on the upper surface in contact with the second sliding part 120b.

In addition, the second sliding part 120b is mounted adjacent to the second rail 111b of the second fixing part 112b, and has a plate-shaped structure that can be slidably coupled to the first rail 111a, and the first sliding part ( 120a) may be of a structure in which the measurement scale 121 is formed on the upper surface in contact with it.

In this case, according to the present embodiment, the first sliding part 120a and the first sliding part 120a in which the measurement scale 121 is formed on the upper surface in contact with the second sliding part 120b and the measurement scale on the upper surface in contact with the first sliding part 120a By having the second sliding part 120b having the 121 formed thereon, the first sliding part 120a is changed to the sliding position to one side, or the second sliding part 120b is changed to the other side by changing the sliding position. It is possible to easily measure the width of the crack, so that it is possible to provide a micro-crack measuring device that can guarantee the efficiency of the measurement operation and the measurement accuracy.

On the other hand, as shown in FIG. 10 , the pair of measurement units 120 includes a transparent material disposed on a portion corresponding to the measurement target surface so as to observe the measurement target surface positioned below. can In this case, the measurement scale 121 is preferably formed on a transparent material disposed on a portion corresponding to the measurement target surface.

In this case, according to the present embodiment, a transparent material is disposed on a portion corresponding to the measurement target surface, a measurement scale 121 is formed on the transparent material, and a light emitting material is coated on the entire portion of the measurement grid, so that the By irradiating the light generated from the light generating member 133 on the measurement scale 121 and the measurement upper surface, microcracks on the measurement target surface can be more clearly identified even in a low-illuminance environment or at a low-illuminance time. It is possible to provide a microcrack measuring device that can ensure the efficiency and measurement accuracy of the measurement operation regardless of the roughness.

11 is a plan view showing a first cradle and a first sliding part according to another embodiment of the present invention, FIG. 12 is an exploded view showing a microcrack measuring device according to another embodiment of the present invention is shown.

Referring to these drawings, the first sliding part 120a according to the present embodiment is slid by a predetermined distance according to the measured crack dimension in the direction from the first fixing part 112a to the second rail 111b to change the position. it is to be done

Specifically, a sawtooth structure (G) is continuously formed on one side of the first sliding part 120a bound to the first fixing part 112a, and the first sliding part is formed on one side of the first fixing part 112a. A rotary dial (D) may be mounted so as to be rotatably engaged with the toothed structure (G) of the portion (120a). In this case, the position detection sensor S1 may be mounted on one side of the first sliding part 120a in contact with the second sliding part 120b. In addition, on the upper surface of the mounting unit 110, an output unit P for outputting the separation distance between the first sliding unit 120a and the second sliding unit 120b through the position change value detected from the position detection sensor S1 ) can be mounted.

In some cases, the second sliding part 120b is slid from the second fixing part 112b in the direction of the first rail 111a by a predetermined distance according to the measured crack dimension so that the position can be changed.

In this case, according to the present embodiment, the tooth structure G of a specific structure is formed at the measurement position, and the rotary dial D, the position detection sensor S1, and the output unit P that perform a specific role are set to a specific position. By placing the first sliding part 120a and the second sliding part 120b apart from each other according to the microcrack after checking the microcrack by the naked eye of the measuring operator, the first sliding part 120a and By digitizing the separation distance of the second sliding part 120b through the position detection sensor S1, the width of the microcrack can be obtained through the output part P, and also in the case of long-term crack measurement expected in the future. Since the width of microcracks can be obtained through the digital output of the crack separation distance according to time that occurs after setting the "0" point of the 1st and 2nd sliding parts through the position detection sensor (S1), the efficiency and measurement of the measurement work It is possible to provide a microcrack measuring device that can ensure accuracy.

13 is a block diagram showing a control unit, a mounted lens reading unit, and an illuminance detection sensor unit added to the microcrack measuring device according to another embodiment of the present invention.

Referring to FIG. 13 together with FIGS. 2 and 3 , the microcrack measuring device 100 according to the present embodiment includes an illuminance detection sensor unit S2, a mounted lens reading unit S3 and a control unit (S3) that perform a specific role ( It may be a configuration comprising C).

Specifically, the illuminance detection sensor unit S2 is a component mounted on one side of the mounting unit 110 , and after detecting external illuminance, the detected data may be transmitted to the control unit C.

The mounted lens reading unit S3 is configured to be mounted adjacent to the magnifying lens 140 of the reading unit 130 , and may detect the magnification of the mounted magnifying lens 140 .

In addition, the control unit (C) according to the present embodiment, as a configuration mounted on one side of the mounting unit 110, read based on the data detected through the illuminance detection sensor unit (S2) and the mounted lens reading unit (S3) The degree of illuminance of the light emitted from the light generating member 133 of the unit 130 may be changed.

In this case, according to the present embodiment, by providing the illuminance detection sensor unit (S2), the mounted lens reading unit (S3) and the control unit (C) that perform a specific role, the microcrack according to the illuminance of the surroundings where the microcrack measuring device is installed After setting the illuminance suitable for crack measurement, by controlling the illuminance of the light irradiated from the light generating member 133 by correcting the suitable illuminance again according to the size of the magnification of the mounted magnifying lens 140, the ambient illuminance and measurement It is possible to automatically provide a suitable roughness according to the size of the desired microcrack, and as a result, it is possible to provide a microcrack measuring device that can ensure the efficiency and measurement accuracy of the measurement operation.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the present invention as defined by the appended claims. should be

That is, the present invention is not limited to the specific embodiments and descriptions described above, and any person skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications are possible, and such modifications shall fall within the protection scope of the present invention.

10: measurement target plane
11: Microcracks
100: microcrack measuring device
110: mount
110a: first cradle
110b: second cradle
111: rail
111a: first rail
111b: second rail
112a: first fixing part
112b: second fixing part
113: adhesion member
120: measurement unit
120a: first sliding part
120b: second sliding part
121: measurement scale
130: reading unit
131: block-type cradle
132: hemispherical cradle
133: light generating member
134: through hole
135: through hole
140: magnifying lens
G: tooth structure
D: rotary dial
S1: Position detection sensor
S2: Illuminance detection sensor unit
S3: Lens reading unit
P: output
C: control
R: binding rail

Claims (4)

The microcrack 11 is mounted on the top of the measurement target surface 10, has a plate-shaped structure having a predetermined width laterally, the mounting portion 110 in which the rail 111 slidable in one direction is formed on the upper surface;
It is bound to be slidably moved to the rail 111 of the holder 110 , and a measuring scale 121 is formed on the upper surface, and is bound to be able to slide and move independently of each other along the forming direction of the measuring scale 121 . a pair of measuring units 120 to be; and
The magnifying lens 140 is mounted on the mounting portion 110 and spaced apart from the measurement scale 121 of the pair of measurement units 120 by a predetermined height, and the light is directed to the measurement target surface 10 . a reading unit 130 equipped with a light generating member 133 for irradiating;
including,
The cradle 110 includes a pair of first holders 110a and second holders 110b disposed on both sides around the microcracks of the measurement target surface,
The first cradle 110a,
a first fixing part (112a) having a plate-shaped structure mounted on the upper surface of the measurement target surface and having an adhesion member 113 attached to the lower surface of the measurement target surface; and
a first rail (111a) extending to one side of the first fixing part (112a) by a predetermined length and having a structure capable of accommodating one of the pair of measuring parts (120);
including,
The second holder 110b,
a second fixing part (112b) having a plate-shaped structure mounted on the upper surface of the measurement target surface and having a contact member 113 attached to the lower surface of the measurement target surface; and
a second rail (111b) extending to one side of the second fixing part (112b) by a predetermined length and having a structure capable of accommodating one of the pair of measuring parts (120);
including,
The pair of measuring units 120,
It is mounted adjacent to the first rail 111a of the first fixing part 112a and has a plate-shaped structure that can be slidably coupled to the second rail 111b, and has a measurement scale on the upper surface in contact with the second sliding part 120b ( 121) is formed a first sliding portion (120a); and
It is mounted adjacent to the second rail 111b of the second fixing part 112b and has a plate-shaped structure that can be slidably coupled to the first rail 111a, and has a measurement scale on the upper surface in contact with the first sliding part 120a. 121) is formed a second sliding portion (120b);
including,
The pair of measurement units 120 is a light generating unit by coating a light emitting material on a certain portion of a measurement plate made of a transparent material disposed on a portion corresponding to the measurement target surface so that the measurement target surface located below can be observed. (133) maximizes the effect of irradiating the light,
The measurement scale 121 includes a film or plate formed on a transparent material disposed on a portion corresponding to the measurement target surface or engraved with a separate measurement scale,
The first sliding part 120a is slid by a predetermined distance from the first fixing part 112a in the direction of the second rail 111b and is bound to the first fixing part 112a so that the position can be changed,
A sawtooth structure (G) is continuously formed on one side of the first sliding part (120a) bound to the first fixing part (112a),
A rotation dial (D) is mounted on one side of the first fixing part (112a) so as to be rotatably engaged with the tooth structure (G) of the first sliding part (120a),
A position detection sensor (S1) is mounted on one side of the first sliding part (120a) in contact with the second sliding part (120b),
An output unit (P) for outputting the separation distance between the first sliding unit (120a) and the second sliding unit (120b) through the position change value detected by the position detection sensor (S1) on the upper surface of the mounting unit (110) Triple structure microcrack measuring device, characterized in that it is mounted.
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