KR101810565B1 - Apparatus for measuring 2D tractive force - Google Patents

Apparatus for measuring 2D tractive force Download PDF

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Publication number
KR101810565B1
KR101810565B1 KR1020150154410A KR20150154410A KR101810565B1 KR 101810565 B1 KR101810565 B1 KR 101810565B1 KR 1020150154410 A KR1020150154410 A KR 1020150154410A KR 20150154410 A KR20150154410 A KR 20150154410A KR 101810565 B1 KR101810565 B1 KR 101810565B1
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KR
South Korea
Prior art keywords
support member
plate
sensing sensor
housing
upper support
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KR1020150154410A
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Korean (ko)
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KR20170052220A (en
Inventor
박재현
김영도
박용성
정동규
오준오
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인제대학교 산학협력단
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Publication of KR20170052220A publication Critical patent/KR20170052220A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/08—Details, e.g. gates, screens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/402—River restoration

Abstract

The present invention relates to an apparatus for measuring two-dimensional flowability, which is installed on the bottom of a waterway for evaluating the hydraulic stability for restoration of an ecological stream, and is capable of measuring a sidestream in a direction perpendicular to the flow direction.
The present invention comprises: a lower support member; An elastic rod made of an elastic material so that a lower end thereof is supported by the lower support member and is displaceable when a force is applied in a horizontal direction; An upper supporting member elastically supported by the upper end of the elastic rod; A front end plate coupled to an upper side of the upper support member and elastically supported by the elastic rod together with the upper support member and positioned at the same height as a bottom surface of the channel so as to cause displacement while being in contact with water flowing on the upper surface; A first sensing sensor for measuring a front-rear direction displacement distance of the front plate; And a second sensing sensor for measuring a displacement distance of the front plate in the left and right directions so as to measure the liquefied power based on the values measured by the first sensing sensor and the second sensing sensor.

Description

[0001] Apparatus for measuring 2D tractive force [0002]

[0001] The present invention relates to an apparatus for measuring a sludge flow, and more particularly, to a two-dimensional sludge flow measuring apparatus installed on the bottom of a water channel for evaluating the hydraulic stability for ecological river restoration, .

The river improvement using the cement-based shore block, the tile, and the concrete retaining wall was advantageous in terms of endogenous and economical aspects. However, as a result, the river was simply converted into water, and riverbed and river were blocked with concrete, , The destruction of the ecological environment of the highland site, the damage of the natural beauty, the loss of the ability to clean the river, and so on.

Such environmental destruction gave birth to the unexpected weather, and as soon as it realized that people and nature should coexist together and live together, construction methods are emerging which express a natural river.

Pure vegetation is the most suitable method for natural ecological river, but it is difficult to select appropriate plant species according to river characteristics and soil characteristics, and it is difficult to select flood communication cross section , And the increase in the number of illuminance. Especially, the possibility of loss of vegetation and revetment due to the floodwaters during flooding was a problem that must be solved.

Accordingly, various methods for preparing the sidestream power have been disclosed. For example, Patent Publication No. 1437857 (Apr. 29, 2014) discloses an ecological arming structure which is less likely to be damaged or destroyed by the crushing force, and Patent Application Publication No. 0990431 (Oct. 22, 2010) Vegetation greenery structure of the riverside has been disclosed in order to prevent unnecessary loss.

However, even though various measures have been introduced to cope with the cryospheric power as described above, it is necessary to measure the cryospheric power to evaluate the hydraulic stability for restoration of the ecological river before, and there was no proper measuring device for this. Therefore, it was necessary to develop a pumping force measuring device installed on the bottom of the water channel to measure the pumping force.

Korean Patent Publication No. 1995-0006433 (1995.03.21)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and an object of the present invention is to provide a water- Dimensional cantilever force measuring device capable of measuring the cantilever force of the two-dimensional cantilever force measuring device.

According to an aspect of the present invention, there is provided an apparatus for measuring two-dimensional sludge flow, comprising: a lower support member; An elastic rod made of an elastic material so that a lower end thereof is supported by the lower support member and is displaceable when a force is applied in a horizontal direction; An upper supporting member elastically supported by the upper end of the elastic rod; A front end plate coupled to an upper side of the upper support member and elastically supported by the elastic rod together with the upper support member and positioned at the same height as a bottom surface of the channel so as to cause displacement while being in contact with water flowing on the upper surface; A first sensing sensor for measuring a front-rear direction displacement distance of the front plate; A second sensing sensor for measuring a displacement distance in the lateral direction of the front plate; Wherein the first sensor and the second sensor are capable of measuring the laminar flow based on the values measured by the first sensor and the second sensor.

Here, the connection between the lower support member and the upper support member with respect to the elastic bar is made by screwing, so that the height of the front end plate can be adjusted.

The lower support member may include a lower body portion and a lower attachment / detachment portion, which are divided along the forward and backward directions about the screw hole to which the lower end portion of the elastic rod is screwed and are bolted together, And an upper body portion and an upper attachment / detachment portion which are divided along the forward and backward directions around the screw hole to be screwed and fastened to each other by bolts.

Further, the upper body portion of the upper support member may be made of an aluminum material, with the remaining portions except for the edges opened to reduce the weight.

The first sensing sensor and the second sensing sensor are respectively provided as an eddy current sensor and the front plate is provided with a first conductive plate corresponding to the first sensing sensor and the second sensing sensor, And a second conductive plate.

The apparatus may further include a housing embedded in the bottom of the water channel to provide a space for receiving the lower support member, the elastic rod, the upper support member, the front end plate, the first sensor, and the second sensor .

In addition, the housing comprises a top plate, a bottom plate, and side walls connecting the top plate and the bottom plate, wherein the top plate of the housing is disposed at the same height as the bottom surface of the channel, And an opening that provides a space that can be displaced.

A first support extending from the front wall or the rear wall of the side wall of the housing in a protruding manner to a housing space of the housing and having a first sensing sensor installed at a front end thereof; And a second support member protruding from the left wall to the housing space of the housing and having a second sensing sensor installed at a distal end thereof.

The opening of the housing upper plate may be further provided with a flexible material barrier to fill the gap between the upper plate and the front plate of the housing while allowing the displacement of the front plate to block penetration of flowing water.

The first sensing sensor and the second sensing sensor are respectively provided as an eddy current sensor and the front plate is provided with a first conductive plate corresponding to the first sensing sensor and the second sensing sensor, And a second conductive plate.

In addition, the elastic bar may be provided on the left side and the postal side at the front end side of the upper support member and the lower support member, and at the left side and the postal side at the rear end side of the upper support member and the lower support member.

The two-dimensional sludge flow measuring apparatus according to the present invention is installed on the bottom of the water channel to evaluate the hydraulic stability for ecological river restoration, and it is possible to measure the sludge flow not only in the direction of the water flow but also in the direction perpendicular thereto.

FIG. 1 is a view showing the state of use of the apparatus for measuring two-dimensional flowability according to the embodiment of the present invention,
2 is a perspective view of a two-dimensional sludge flow measuring apparatus according to an embodiment of the present invention.
3 is a cross-sectional front view for explaining a configuration of a two-dimensional sludge flow measuring apparatus according to an embodiment of the present invention
4 is a plan view of a two-dimensional sludge flow measuring apparatus according to an embodiment of the present invention.
5 is a perspective view for explaining a configuration of a housing in a two-dimensional squeeze force measuring apparatus according to an embodiment of the present invention.
6 is a perspective view for explaining a displacement module of the two-dimensional cryogenic force measuring apparatus according to the embodiment of the present invention.
FIG. 7 is a bottom view of a corresponding portion for explaining a configuration of a front end plate and an upper support member in a two-dimensional sidestand repulsive force measuring apparatus according to an embodiment of the present invention.

A detailed description will be given of an apparatus for measuring two-dimensional flowability according to embodiments of the present invention with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a use state diagram showing a state in which a two-dimensional sludge flow measuring apparatus according to an embodiment of the present invention is installed in a water channel.

As shown in the figure, the two-dimensional recalcitrance force measuring apparatus 100 according to the embodiment of the present invention is installed in the bottom of a waterway W, and is installed in a water- The stability evaluation system is constituted so as to be able to measure not only the flow direction of the water flowing in the water channel but also the squeezing force in the direction perpendicular thereto.

Hereinafter, a configuration of a sludge flow measuring apparatus according to an embodiment of the present invention will be described.

FIG. 2 is a perspective view of a two-dimensional cryogenic current measuring apparatus according to an embodiment of the present invention, FIG. 3 is a cross-sectional front view illustrating a configuration of a two-dimensional cryogenic current measuring apparatus according to an embodiment of the present invention, 5 is a perspective view for explaining a configuration of a housing in a two-dimensional cryogen measuring apparatus according to an embodiment of the present invention, and FIG. 6 is a perspective view of a two-dimensional cryogen measuring apparatus according to an embodiment of the present invention. FIG. 3 is a perspective view illustrating a displacement module of FIG. And FIG. 7 is a bottom view of the corresponding part for explaining the configuration of the shear plate and the upper support member in the two-dimensional cryogenic current measuring apparatus according to the embodiment of the present invention.

As shown in the drawing, the apparatus for measuring two-dimensional flow through the water according to the embodiment of the present invention comprises: a housing 110, which is filled with a river or a waterway to provide a receiving space; A lower support member 122 and an upper support member 123, a plurality of elastic rods 124, and a front end plate 125, which are displaced by the laminar force. The displacement module 120 includes a first conductive plate and a second conductive plate. The displacement module 120 measures a degree of displacement of the displacement module 120 when the displacement module 120 is displaced by flowing water, And includes a sensing sensor 131 and a second sensing sensor 132.

According to the two-dimensional sludge flow measuring apparatus according to the embodiment of the present invention, it is possible to easily measure the magnitude of the squeeze force occurring at the bottom of a river or a waterway, not only in the direction of the water flow, but also in the direction perpendicular thereto.

Hereinafter, each component will be described in more detail.

The housing 110 is embedded in the bottom of the water channel to provide a space for the displacement module 120. The housing 110 includes a top plate 112 and a bottom plate 111 and a side wall 113 connecting the top plate 112 and the bottom plate 111. The upper plate 112 of the housing 110 is installed at the same height as the bottom surface of the water channel and the remaining portion except for the peripheral edge is formed as an opening 112a. The front plate 125 is positioned inside the opening 112a of the upper plate 112 so as to be displaceable. A gap between the upper plate 112 and the front plate 125 of the housing 110 is filled in the opening 112a of the upper plate 112 of the housing 110 while allowing the displacement of the front plate 125, It is preferable to further provide a blocking membrane 116 of a flexible material which blocks penetration of flowing water. The blocking layer 116 may be formed of a thin silicon film, a material such as vinyl or rubber.

In addition, the side wall 113 of the housing 110 is formed in a substantially open frame shape, and protrudes from the intermediate point of the front wall or the rear wall of the side wall 113 (from the front wall in the drawing) And a second support 115 protruding from the middle point of the right or left wall of the side wall 113 (from the left wall in the figure) into the receiving space, . The distal end portion 114a of the first support rod 114 and the distal end portion 115a of the second support rod 115 are each bent upward so that the first and second detection sensors 131 and 132 And installation holes 114b and 115b for installation are formed.

The displacement module 120 is displaced by a cryogenic force that affects the bottom of a river or a waterway, and the displacement module 120 is displaced according to the magnitude of the cryogenic force to play a pivotal role in measuring the cryogenic force. 6, the displacement module 120 includes a base 121, a lower support member 122 and an upper support member 123, a plurality of elastic rods 124, and a shear plate 125. And includes a first conductive plate 126 and a second conductive plate 127. These subcomponents will be described as follows.

That is, the base 121 is provided on the upper surface of the lower plate 111 of the housing 110 to support the lower support member 122, and corresponds to the lower body 122a of the lower support member 122 As shown in FIG. Here, the base 121 may be omitted. However, when the base 121 is installed without being omitted, the lower detachable portion 122b of the lower support member 122, which is a combination of the lower body portion 122a and the lower detachable portion 122b, It becomes possible. As a result, the lower end portion of the elastic rod 124 and the height thereof can be easily adjusted.

The lower support member 122 is provided with a screw hole 122c for supporting the elastic rod 124 so that the lower end of the elastic rod 124 is screwed to the elastic rod 124 and the front end plate 125 ) To be adjusted. The lower support member 122 is composed of a lower body portion 122a and a pair of lower attachment and detachment portions 122b detachably attached to the left and right sides of the lower body portion 122a. (122b) is divided on the left side and the postal side in the longitudinal direction about the screw hole (122c) to which the lower end of the elastic rod (124) is screwed. When the lower support member 122 is separated into the lower body 122a and the lower attachment / detachment unit 122b, the elastic rod 124 having different thicknesses can be easily replaced. The upper body portion 123a and the upper detachable portion 123b are detachably coupled by bolts.

The upper support member 123 is elastically supported by the upper end of the elastic rod 124 and supports the front end plate 125 in a displaceable manner. 7, the upper support member 123 is divided into upper and lower parts, which are divided along the forward and backward directions about the screw hole 123c to which the upper end of the elastic rod 124 is screwed, And includes an upper portion 123a and an upper attachment / detachment portion 123b. The overall structure of the upper support member 123 is the same as that of the lower support member 122. However, the upper support member 123 has a structure in which the remaining portion except for the edge is opened 123d for weight saving. Thereby relieving the load on the elastic rods 124 and responding more sensitively to the flowing force of the flowing water.

The elastic rod 124 is made of an elastic material so that the lower end thereof is supported by the lower support member 122 and is displaceable when receiving a force in a horizontal direction. Since the elastic bar 124 is screwed to the upper support member 123 and the lower support member 122, the distance between the upper support member 123 and the lower support member 122 can be adjusted. So that the height of the front end plate 125 can be easily adjusted. Also, as described above, the elastic rods 124 can be replaced with different thicknesses through the division of the upper support member 123 and the lower support member 122. In addition, four left and right postcards are provided on the left and right sides of the front side, respectively, so that the upper support member 123 and the front end plate 125 can be stably supported.

The front end plate 125 is coupled to the upper side of the upper support member 123 and is elastically supported by the elastic rod 124 together with the upper support member 123. The front plate 125 is located inside the opening 112a formed in the upper plate 112 of the housing 110. [ As a result, it is positioned at the same height as the bottom surface of the water channel, and its upper surface is brought into contact with the flowing water to cause displacement. At this time, the force applied to the shear plate 125 corresponds to the pumping force affecting the river or the river bed. The shear plate 125, which is supported by the elastic rod 124 so as to be displaceable, The displacement of the first conductive plate 126 and the second conductive plate 127 installed on the lower side is induced.

The first conductive plate 126 and the second conductive plate 127 are installed in the form of elongated downward from the front end plate 125 so that the first sensing sensor 131 and the second sensing sensor 132, As shown in FIG. The first conductive plate 126 and the second conductive plate 127 are formed of a conductive material such as aluminum so that the first sensing sensor 131 and the second sensing sensor 132 provided with an eddy current sensor are displaced To be measured. Here, the measured displacement value is a basis for calculating the strength of the sludge flow.

The first sensing sensor 131 and the second sensing sensor 132 are respectively provided as an eddy current sensor to measure the degree of displacement of the first conductive plate 126 and the second conductive plate 127 do. When the displacement values measured by the first sensor 131 and the second sensor 132 are converted into electric signals and transmitted to a controller not shown, the controller controls the first sensor 131 and the second sensor 132 ), The size of the squeezing force applied in the flow direction of the flowing water is calculated and the size of the squeezing force applied in the direction orthogonal to the flowing water is calculated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

110: housing 114, 115: first support, second support
120: Displacement module 121: Base
122: lower support member 123: upper support member
124: elastic rod 125: shear plate
126: first conductive plate 127: second conductive plate
131: first detection sensor 132: second detection sensor

Claims (13)

In order to evaluate the hydrological stability for ecological river restoration, it is installed on the bottom of the channel so that it can measure not only the direction of water flow but also the flow direction in the perpendicular direction.
A lower support member 122;
The lower end portion is supported by the lower support member 122 and is displaced with the same amount of displacement with respect to each direction when receiving a force having the same magnitude in the forward and backward direction of the flowing water flowing along the waterway and in the right- A plurality of elastic rods (124) made of a rod shape and an elastic material;
An upper support member 123 coupled to the upper end of the elastic rod 124 and elastically supported;
The upper support member 123 is coupled to the upper support member 123 and is resiliently supported by the elastic rod 124 together with the upper support member 123. The upper support member 123 is positioned at the same height as the bottom surface of the waterway, A shear plate 125 for causing the shear plate 125 to be bent;
A first sensing sensor 131 for measuring a front-rear direction displacement distance of the front end plate 125;
And a second sensing sensor 132 for measuring a displacement distance of the front plate 125 in the lateral direction,
The first sensing sensor 131 and the second sensing sensor 132 can measure the sidestream force in the water flow direction and the sidestream force in the orthogonal direction perpendicular to the flow direction,
The elastic bar 124 is provided on the left and right sides of the upper support member 123 and the lower support member 122 on the front end side and on the rear end side of the upper support member 123 and the lower support member 122 The lower support member 122 and the upper support member 123 are coupled to the elastic rod 124 by screws so that the height of the front end plate 125 can be adjusted In addition,
The lower support member 122 includes a lower body portion 122a and a lower detachable portion 122b which are divided along the forward and backward directions about the screw hole 122c to which the lower end portion of the elastic rod 124 is screwed, ),
The upper support member 123 includes an upper body portion 123a and a lower attachment portion 123b which are divided along the forward and backward directions about the screw hole 123c to which the upper end of the elastic rod 124 is screwed, ),
And a base 121 formed at the same width as the lower body portion 122a of the lower support member 122 and supporting only the lower body portion 122a except for the lower detachable portion 122b from below Wherein the two-dimensional flow-through force measuring device comprises: delete delete The method according to claim 1,
Wherein the upper body part (123a) of the upper support member (123) is made of an aluminum material and the remaining part except for the edge is opened for weight reduction. delete The method according to claim 1,
The first sensing sensor 131 and the second sensing sensor 132 are respectively provided as an eddy current sensor and the first sensing sensor 131 and the second sensing sensor 132 are connected to the front plate 125, Wherein the first conductive plate (126) and the second conductive plate (127) are electrically connected to the first conductive plate (132) and the second conductive plate (127). The method according to claim 1,
The bottom support member 122, the elastic bar 124, the upper support member 123, the front plate 125, the first sensing sensor 131, and the second sensing sensor 131 are embedded in the bottom of the water channel. Further comprising a housing (110) for providing a space for accommodating the fluid (132). 8. The method of claim 7,
The housing 110 includes a top plate 112 and a bottom plate 111 and side walls 113 connecting the top plate 112 and the bottom plate 111. The top plate 112 of the housing 110 is connected to the water channel And the remaining portion except for the peripheral edge is formed as an opening portion (112a) for providing a space in which the front plate (125) can be displaced. 9. The method of claim 8,
A gap between the upper plate and the front plate 125 of the housing 110 is filled in the opening 112a of the upper plate 112 of the housing 110 while allowing the displacement of the front plate 125, And a barrier film (116) made of a flexible material is further provided. 9. The method of claim 8,
The first sensing sensor 131 is extended from a front wall or a rear wall of the side wall 113 of the housing 110 to a receiving space of the housing 110, (110), and a second sensing sensor (132) extending from the right side wall or the left side wall of the side wall of the housing (110) to a housing space of the housing 2 supporting table (115) is further formed. 11. The method of claim 10,
The first sensing sensor 131 and the second sensing sensor 132 are respectively provided as an eddy current sensor and the first sensing sensor 131 and the second sensing sensor 132 are connected to the front plate 125, Wherein the first conductive plate (126) and the second conductive plate (127) are electrically connected to the first conductive plate (132) and the second conductive plate (127). delete A water channel;
The apparatus according to any one of claims 1, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, Evaluation system.
KR1020150154410A 2015-11-04 2015-11-04 Apparatus for measuring 2D tractive force KR101810565B1 (en)

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KR102092895B1 (en) 2018-05-29 2020-03-24 인제대학교 산학협력단 Accurate tractive force measuring apparatus
KR102547319B1 (en) 2021-11-30 2023-06-26 인제대학교 산학협력단 Correction-type tractive force measuring apparatus considering the environmental conditions of the river floor

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