A dynamic and static strain meter and a dynamic and static strain acquisition and analysis system

Abstract

The present application relates to a dynamic and static strain gauge, which belongs to the field of detection equipment, and includes a strain gauge body and a protective shell, the protective shell includes a shell and a shell cover, the strain gauge body is embedded in the shell, and a heat exchange pipeline is arranged inside the strain gauge body; the outer surface of the strain gauge body is provided with an air inlet and an air outlet, and the air inlet and the air outlet are both connected to the heat exchange pipeline; the shell is provided with an air supply pipeline and an air outlet pipeline, the air supply pipeline is connected to the air inlet, and the air outlet pipeline is connected to the air outlet; the shell is also provided with an air supply device, and the air supply device is used to send the air outside the shell into the air supply pipeline. The present application also discloses a dynamic and static strain acquisition and analysis system, including a dynamic and static strain gauge and an acquisition and analysis device. The present application has the effect of preventing the internal temperature of the dynamic and static strain gauge from being too high during use, protecting the internal components of the dynamic and static strain gauge, and extending the service life of the dynamic and static analyzer.

Description

Technical Field

[0001] The present application relates to the field of detection equipment, and in particular to a dynamic and static strain gauge and a dynamic and static strain acquisition and analysis system. Background Art

[0002] The dynamic and static strain gauge is an engineering measurement instrument used to measure slowly changing physical quantities, such as strain, pressure, temperature displacement, etc. It also needs to accurately capture peak values ​​and other data. In order to solve the problem of poor protection, the existing dynamic and static strain gauges are generally equipped with a portable box-type protective shell on the outside of the dynamic and static strain gauge, and sponge is filled between the protective shell and the dynamic and static strain gauge. This can not only solve the problem of poor protection of the dynamic and static strain gauge during transportation, but also facilitate the carrying of the dynamic and static strain gauge.

[0003] A protective shell is provided on the outside of the dynamic and static strain gauge, so that the heat generated by the dynamic and static strain gauge during use cannot be discharged in time, which easily causes the temperature inside the dynamic and static strain gauge to rise. When the internal temperature of the dynamic and static strain gauge is too high, it is easy to cause the internal components of the dynamic and static strain gauge to burn out. Summary of the invention

[0004] In order to prevent the internal temperature of the dynamic and static strain gauge from being too high during use, to protect the internal components of the dynamic and static strain gauge, and to extend the service life of the dynamic and static analyzer, the present application provides a dynamic and static strain gauge and a dynamic and static strain acquisition and analysis system.

[0005] The present application provides a dynamic and static strain gauge that adopts the following technical solution:

[0006] A dynamic and static strain gauge comprises a strain gauge body and a protective shell, wherein the protective shell comprises a shell and a shell cover, the strain gauge body is embedded in the shell, and a heat exchange pipeline is arranged in the strain gauge body;

[0007] The outer surface of the strain gauge body is provided with an air inlet and an air outlet, and the air inlet and the air outlet are both connected to the heat exchange pipeline;

[0008] An air supply pipeline and an air outlet pipeline are arranged inside the shell, the air supply pipeline is connected to the air inlet, and the air outlet pipeline is connected to the air outlet;

[0009] The shell is also provided with an air supply device, which is used to send the air outside the shell into the air supply pipeline.

[0010] Optionally, the air supply pipeline includes a first air duct fixed at the bottom end of the shell, the first air duct is provided with a first docking seat, the first docking seat is slidably connected to the first air duct, the first docking seat is provided with a first docking joint, and the first docking seat is provided with a first air duct connecting the first air duct and the first docking joint;

[0011] The air outlet duct includes a second air duct fixed to the bottom end of the shell, the second air duct is provided with a second docking seat, the second docking seat is slidably connected to the second air duct, the second docking seat is provided with a second docking joint, and the second docking seat is provided with a second air duct connecting the second air duct and the second docking joint;

[0012] The air inlet and the air outlet are both facing the side plate of the shell;

[0013] The first butt joint is opposite to the air inlet and inserted into the air inlet;

[0014] The second butt joint is opposite to the air outlet and inserted into the air outlet.

[0015] Optionally, a first control member for controlling the movement of the first docking seat is disposed on the shell, the first control member is connected to the first docking seat, and the first control member is slidably connected to the shell.

[0016] Optionally, a second control member for controlling the movement of the second docking seat is disposed on the shell, the second control member is connected to the second docking seat, and the second control member is slidably connected to the shell.

[0017] Optionally, an elastic member is provided between the first docking seat and the side wall of the shell, and between the second docking seat and the side wall of the shell.

[0018] Optionally, a bottom end of the strain gauge body is provided with accommodating grooves for accommodating the air supply pipeline and the air outlet pipeline respectively.

[0019] Optionally, the heat exchange pipeline includes a heat exchange pipe located inside the strain gauge body, the heat exchange pipe is located at the top inside the strain gauge body, one end of the heat exchange pipe is connected to the air inlet through a first pipe, and the other end of the heat exchange pipe is connected to the air outlet through a second pipe.

[0020] Optionally, the heat exchange pipe includes a shunt pipe, a converging pipe, and a heat exchange pipe located between the shunt pipe and the converging pipe. The heat exchange pipe is spiral, and a distance is left between adjacent heat exchange pipes.

[0021] Optionally, an inflatable airbag is filled between the side wall of the shell and the strain gauge body.

[0022] The present application also provides a dynamic and static strain acquisition and analysis system that adopts the following technical solution:

[0023] A dynamic and static strain acquisition and analysis system comprises the dynamic and static strain gauge and an acquisition and analysis device installed with acquisition and analysis software. The dynamic and static strain gauge transmits data to the acquisition and analysis device via a network signal.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When the strain gauge body is installed into the shell, firstly, the first docking seat and the second docking seat are respectively removed by the first control member and the second control member, and then the strain gauge body is installed into the shell, and the air inlet of the strain gauge body is opposite to the air supply pipeline, and the air outlet is opposite to the air outlet pipeline. After the strain gauge body is installed into the shell, the first docking joint is inserted into the air inlet by the first control member, and the second docking joint is inserted into the air outlet by the second control member. When the air supply pipeline is connected with the air inlet, and the air outlet pipeline is connected with the air outlet, the fan is turned on to continuously send gas into the interior of the air supply pipeline, and the gas enters the heat exchange pipeline along the air supply pipeline, thereby reducing the temperature inside the strain gauge body. At the same time, by inserting the first docking joint into the air inlet and the second docking joint into the air outlet, the strain gauge body can be locked inside the shell.

[0026] 2. By filling an inflatable airbag between the strain gauge body and the side wall of the shell, when the inflatable airbag is inflated, the inflatable airbag protects the strain gauge body, so that the inflatable airbag is not easily damaged by vibration during transportation. When the strain gauge body needs to be taken out, the gas in the inflatable airbag is released, so that the strain gauge body can be easily taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a dynamic and static strain gauge according to an embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of a dynamic and static strain gauge according to an embodiment of the present application;

[0029] Figure 3 is a cross-sectional view of a strain gauge body according to an embodiment of the present application;

[0030] Figure 4 is a schematic structural diagram of a heat exchange pipeline in an embodiment of the present application;

[0031] Figure 5 is a cross-sectional view of a housing according to an embodiment of the present application;

[0032] Figure 6is a schematic diagram of the internal structure of a housing according to an embodiment of the present application;

[0033] Figure 7 is an exploded view of a housing of an embodiment of the present application;

[0034] Figure 8 It is a structural block diagram of the dynamic and static strain acquisition and analysis system of an embodiment of the present application.

[0035] Explanation of the reference numerals: 1. protective shell; 11. shell; 111. first adjustment slot; 112. second adjustment slot; 12. shell cover; 13. first control member; 14. second control member; 2. strain gauge body; 21. heat exchange pipeline; 211. heat exchange exhaust pipe; 2111. shunt pipe; 2112. confluence pipe; 2113. heat exchange pipe; 212. first pipeline; 213. second pipeline; 22. air inlet; 23. air outlet; 24. containing tank; 3. air supply pipeline; 31. first air duct; 311. first connecting hole; 32. first docking seat; 321. first cavity; 33. first docking joint; 4. air outlet pipeline; 41. second air duct; 411. second connecting hole; 42. second docking seat; 421. second cavity; 43. second docking joint; 5. fan; 6. spring; 7. inflatable airbag; 8. collection and analysis device. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] The embodiment of the present application discloses a dynamic and static strain gauge.

[0040] Reference Figure 1 , Figure 2 The dynamic and static strain gauge includes a portable box-type protective shell 1 and a strain gauge body 2. The protective shell 1 includes a shell 11 and a shell cover 12. The shell cover 12 is hinged on the shell 11 and locked with the shell 11 through a lock. The strain gauge body 2 is embedded in the shell 11. When the dynamic and static strain gauge is used, the lock is opened and the shell cover 12 is opened to expose the strain gauge body 2.

[0041] Reference Figure 3 , Figure 4 A heat exchange pipeline 21 is fixed inside the strain gauge body 2, and the heat exchange pipeline 21 is used to cool the inside of the strain gauge body 2. An air inlet 22 and an air outlet 23 are provided on the outer surface of the strain gauge body 2, and the air inlet 22 and the air outlet 23 are both facing the side wall of the shell 11. The heat exchange pipeline 21 is connected to the inside of the air inlet 22 and the air outlet 23.

[0042] The heat exchange pipeline 21 includes a horizontally arranged heat exchange pipe 211, a first pipe 212 connecting the heat exchange pipe 211 with the air inlet 22, and a second pipe 213 connecting the heat exchange pipe 211 with the air outlet 23. The first pipe 212 is sealed and fixed to the heat exchange pipe 211, and the first pipe 212 is sealed and fixed to the strain gauge body 2. The second pipe 213 is sealed and fixed to the heat exchange pipe 211, and the second pipe 213 is sealed and fixed to the strain gauge body 2.

[0043] The heat exchange pipe 211 includes a shunt pipe 2111, a confluence pipe 2112, and a plurality of heat exchange pipes 2113 located between the shunt pipe 2111 and the confluence pipe 2112. One end of the heat exchange pipe 2113 is sealed and fixed to the shunt pipe 2111, and the other end of the heat exchange pipe 2113 is sealed and fixed to the confluence pipe 2112. The heat exchange pipe 2113 is connected to both the shunt pipe 2111 and the confluence pipe 2112. There is a distance between adjacent heat exchange pipes 2113. The space between adjacent heat exchange pipes 2113 is used to allow electrical wires to pass through. The heat exchange pipe 2113 is spirally shaped, and by winding the heat exchange pipe 2113 in a spiral shape, it is possible to follow the time when the gas flows through the heat exchange pipe 2113.

[0044] The first pipe 212 is connected to the diverter pipe 2111 of the heat exchange exhaust pipe 211. The second pipe 213 is connected to the conduit 2112 of the heat exchange exhaust pipe 211. When the gas flows into the first pipe 212 through the air inlet 22, the gas flows into the diverter pipe 2111 along the first pipe 212 for diversion, so that the gas is diverted into multiple streams and enters the heat exchange pipe 2113 respectively. The gas exchanges heat when flowing through the heat exchange pipe 2113, thereby reducing the internal temperature of the strain gauge body 2. After the gas passes through the heat exchange pipe 2113, the gas temperature rises and flows into the conduit 2112 for confluence. The merged gas enters the second pipe 213 and is finally sent to the air outlet 23 for discharge.

[0045] Reference Figure 2 , Figure 5 as well as Figure 6 An air supply pipeline 3 and an air outlet pipeline 4 are provided at the bottom of the housing 11. The air supply pipeline 3 is used to be connected to the air inlet 22 of the strain gauge body 2, and the air outlet pipeline 4 is used to be connected to the air outlet 23 of the strain gauge body 2. A receiving groove 24 is provided at the bottom of the strain gauge body 2 at a position opposite to the air supply pipeline 3 and the air outlet pipeline 4. The receiving groove 24 is used to receive the air supply pipeline 3 and the air outlet pipeline 4 so that the bottom end of the strain gauge body 2 abuts against the bottom wall of the housing 11.

[0046] When the strain gauge body 2 is installed in the housing 11, the air supply pipeline 3 and the air outlet pipeline 4 are both located in the receiving groove 24 at the bottom of the strain gauge body 2. The air inlet 22 of the strain gauge body 2 is horizontally opposite to the air supply pipeline 3. The air outlet 23 of the strain gauge body 2 is horizontally opposite to the air outlet pipeline 4.

[0047] The air supply duct 3 includes a first air duct 31 fixed on the inner bottom wall of the housing 11, one end of the first air duct 31 is opposite to the air inlet 22, and the other end of the first air duct 31 is connected to the outer space of the housing 11. A first docking seat 32 is provided on the first air duct 31, and the first docking seat 32 is slidably connected to the first air duct 31, and the moving direction of the first docking seat 32 is set along the length direction of the first air duct 31. A first docking joint 33 is provided on the side of the first docking seat 32 facing the air inlet 22, and the first docking joint 33 is fixed on the first docking seat 32. The first docking joint 33 is inserted into the air inlet 22.

[0048] The first docking seat 32 is provided with a first cavity 321 inside, and the first docking joint 33 is connected to the first cavity 321 of the first docking seat 32. The first air duct 31 is provided with a first connecting hole 311, which connects the first air duct 31 with the inside of the first cavity 321.

[0049] When the first docking seat 32 is located at one end of the first air duct 31 facing the air inlet 22, the first docking connector 33 is inserted into the air inlet 22. When the first docking seat 32 moves toward the end of the first air duct 31 away from the air inlet 22, the first docking connector 33 is gradually pulled out of the air inlet 22 until it is completely detached from the air inlet 22.

[0050] A fan 5 is provided at one end of the first air duct 31 that is connected to the outside of the housing 11, and the fan 5 is fixed to the housing 11. The fan 5 supplies air to the inside of the first air duct 31. The air entering the first air duct 31 flows through the first air duct 31, enters the first cavity 321 through the first connecting hole 311, and finally flows into the inside of the first docking joint 33 and is sent to the air inlet 22.

[0051] Reference Figure 7 A first control member 13 for controlling the first docking seat 32 to move on the first air duct 31 is provided on the housing 11. The first control member 13 is slidably connected to the housing 11. The first control member 13 penetrates the housing 11 so that one end of the first control member 13 remains inside the housing 11, and the other end of the first control member 13 is located outside the housing 11. One end of the first control member 13 remaining inside the housing 11 is fixedly connected to the first docking seat 32. A long first adjustment slot 111 is provided on the housing 11. The first control member 13 penetrates the first adjustment slot 111. The length direction of the first adjustment slot 111 is set along the length direction of the first air duct 31.

[0052] Reference Figure 2 , Figure 5 , Figure 6 A spring 6 is provided on the side of the first docking seat 32 facing away from the air inlet 22, one end of the spring 6 is fixed to the first docking seat 32, and the other end of the spring 6 is fixed to the housing 11. When the first docking connector 33 is inserted into the air inlet 22, the spring 6 is in an expanded state. When the first docking seat 32 moves along the first air duct 31 in a direction away from the air inlet 22, and the first docking connector is detached from the air inlet 22, the spring 6 is in a compressed state.

[0053] Reference Figure 2 , Figure 5 as well as Figure 6The air outlet duct 4 includes a second air duct 41 fixed on the inner bottom wall of the housing 11, one end of the second air duct 41 is opposite to the air outlet 23, and the other end of the second air duct 41 is connected to the outer space of the housing 11. A second docking seat 42 is provided on the second air duct 41, and the second docking seat 42 is slidably connected to the second air duct 41, and the moving direction of the second docking seat 42 is set along the length direction of the second air duct 41. A second docking connector 43 is provided on the side of the second docking seat 42 facing the air outlet 23, and the second docking connector 43 is fixed on the second docking seat 42. The second docking connector 43 is inserted into the air outlet 23.

[0054] The second docking seat 42 is provided with a second cavity 421 inside, and the second docking joint 43 is connected to the second cavity 421 of the second docking seat 42. The second air duct 41 is provided with a second connecting hole 411, which connects the second air duct 41 with the inside of the second cavity 421.

[0055] When the second docking seat 42 is located at one end of the second air duct 41 toward the air outlet 23, the second docking connector 43 is inserted into the air outlet 23. When the second docking seat 42 moves toward one end of the second air duct 41 away from the air outlet 23, the second docking connector 43 is gradually pulled out of the air outlet 23 until it is completely detached from the air outlet 23.

[0056] Reference Figure 7 A second control member 14 for controlling the second docking seat 42 to move on the second air duct 41 is provided on the housing 11. The second control member 14 is slidably connected to the housing 11. The second control member 14 penetrates the housing 11 so that one end of the second control member 14 remains inside the housing 11, and the other end of the second control member 14 is located outside the housing 11. One end of the second control member 14 remaining inside the housing 11 is fixedly connected to the second docking seat 42. A second long-strip adjustment slot 112 is provided on the housing 11, and the second control member 14 penetrates the second adjustment slot 112. The length direction of the second adjustment slot 112 is arranged along the length direction of the second air duct 41.

[0057] Reference Figure 2 , Figure 5 , Figure 6 A spring 6 is also provided on the side of the second docking seat 42 facing away from the air outlet 23, one end of the spring 6 is fixed to the second docking seat 42, and the other end of the spring 6 is fixed to the housing 11. When the second docking connector 43 is inserted into the air inlet 22, the spring 6 is in an expanded state. When the second docking seat 42 moves along the second air duct 41 in a direction away from the air inlet 22, and the second docking connector is detached from the air outlet 23, the spring 6 is in a compressed state.

[0058] Reference Figure 1An inflatable airbag 7 is filled between the side wall of the shell 11 and the strain gauge body 2, and the inflatable airbag 7 is fixed to the side wall surface of the shell 11. The air inlet and outlet of the inflatable airbag 7 face upwards, so that it is convenient to inflate or deflate the inside of the inflatable airbag 7. When the inflatable airbag 7 is inflated, the inflatable airbag 7 protects the strain gauge body 2, so that the internal components of the inflatable airbag 7 are not easily damaged due to vibration during transportation. When the strain gauge body 2 needs to be taken out, the gas in the inflatable airbag 7 is released, so that it is convenient to take out the strain gauge body 2.

[0059] When the strain gauge body 2 is installed in the housing 11, the first docking seat 32 and the second docking seat 42 are firstly moved away by the first control member 13 and the second control member 14 respectively, and then the strain gauge body 2 is installed in the housing 11, and the air inlet 22 of the strain gauge body 2 is opposite to the air supply pipeline 3, and the air outlet 23 is opposite to the air outlet pipeline 4. After the strain gauge body 2 is installed in the housing 11, the first docking connector 33 is inserted into the air inlet by the first control member 13, and the second docking connector 43 is inserted into the air outlet 23 by the second control member 14.

[0060] When the air supply pipeline 3 is connected to the air inlet 22 and the air outlet pipeline 4 is connected to the air outlet 23, the fan 5 is turned on to continuously supply gas to the inside of the air supply pipeline 3, and the gas enters the heat exchange pipeline 21 along the air supply pipeline 3, thereby reducing the temperature inside the strain gauge body 2. At the same time, by inserting the first butt joint 33 into the air inlet 22 and the second butt joint 43 into the air outlet 23, the strain gauge body 2 can be locked inside the housing 11.

[0061] The application also discloses a dynamic and static strain acquisition and analysis system.

[0062] Reference Figure 8 The dynamic and static strain acquisition and analysis system includes the dynamic and static strain gauge disclosed in the embodiment of the present application and an acquisition and analysis device 8 installed with acquisition and analysis software. The dynamic and static strain gauge transmits data to the interior of the acquisition and analysis device 8 through a network signal.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dynamic and static strain gauge, comprising a strain gauge body (2) and a protective shell (1), wherein the protective shell (1) comprises a shell (11) and a shell cover (12), and the strain gauge body (2) is embedded in the shell (11), characterized in that: A heat exchange pipeline (21) is arranged inside the strain gauge body (2); An air inlet (22) and an air outlet (23) are provided on the outer surface of the strain gauge body (2), and the air inlet (22) and the air outlet (23) are both connected to the heat exchange pipeline (21); An air supply pipeline (3) and an air outlet pipeline (4) are provided inside the housing (11); the air supply pipeline (3) is connected to the air inlet (22), and the air outlet pipeline (4) is connected to the air outlet (23); The shell (11) is also provided with an air supply device, and the air supply device is used to send air outside the shell (11) into the air supply pipeline (3); The air supply pipeline (3) comprises a first air duct (31) fixed at the bottom end inside the shell (11); a first docking seat (32) is provided on the first air duct (31); the first docking seat (32) is slidably connected to the first air duct (31); a first docking connector (33) is provided on the first docking seat (32); and a first air duct is provided on the first docking seat (32) for connecting the first air duct (31) with the first docking connector (33); The air outlet duct (4) comprises a second air duct (41) fixed to the bottom end inside the shell (11); a second docking seat (42) is provided on the second air duct (41); the second docking seat (42) is slidably connected to the second air duct (41); a second docking connector (43) is provided on the second docking seat (42); and a second air duct is provided on the second docking seat (42) for connecting the second air duct (41) with the second docking connector (43); The air inlet (22) and the air outlet (23) are both facing the side plate of the housing (11); The first butt joint (33) is opposite to the air inlet (22) and inserted into the air inlet (22); The second butt joint (43) is opposite to the air outlet (23) and inserted into the air outlet (23); An elastic member is provided between the first docking seat (32) and the side wall of the shell (11), and between the second docking seat (42) and the side wall of the shell (11); An inflatable airbag (7) is filled between the side wall of the housing (11) and the strain gauge body (2).

2. A dynamic and static strain gauge according to claim 1, characterized in that: The housing (11) is provided with a first control member (13) for controlling the movement of the first docking seat (32); the first control member (13) is connected to the first docking seat (32); and the first control member (13) is slidably connected to the housing (11).

3. A dynamic and static strain gauge according to claim 1, characterized in that: The shell (11) is provided with a second control member (14) for controlling the movement of the second docking seat (42); the second control member (14) is connected to the second docking seat (42); and the second control member (14) is slidably connected to the shell (11).

4. A dynamic and static strain gauge according to claim 1, characterized in that: The bottom end of the strain gauge body (2) is provided with a receiving groove (24) for receiving the air supply pipeline (3) and the air outlet pipeline (4) respectively.

5. A dynamic and static strain gauge according to claim 1, characterized in that: The heat exchange pipeline (21) comprises a heat exchange exhaust pipe (211) located inside the strain gauge body (2); the heat exchange exhaust pipe (211) is located at the top end inside the strain gauge body (2); one end of the heat exchange exhaust pipe (211) is connected to the air inlet (22) via a first pipe (212); and the other end of the heat exchange exhaust pipe (211) is connected to the air outlet (23) via a second pipe (213).

6. A dynamic and static strain gauge according to claim 5, characterized in that: The heat exchange pipe (211) comprises a diverter pipe (2111), a converging pipe (2112), and a heat exchange pipe (2113) located between the diverter pipe (2111) and the converging pipe (2112); the heat exchange pipe (2113) is spiral-shaped, and a distance is left between adjacent heat exchange pipes (2113).

7. A dynamic and static strain acquisition and analysis system, characterized in that: It comprises the dynamic and static strain gauge as described in any one of claims 1 to 6 and a collection and analysis device (8) installed with collection and analysis software, wherein the dynamic and static strain gauge transmits data to the collection and analysis device (8) via a network signal.

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