Contact type measuring system for measuring displacement after object explosion

Abstract

The invention discloses a contact type measuring system for measuring displacement after object explosion, which comprises an on-site steel plate, supporting rods are fixedly connected to two sides of the top of the on-site steel plate, a tail end clamping block is fixedly connected to the bottom between the two supporting rods, and magnetic rings are fixedly connected to the tops of the two supporting rods through bolts. And a magnetostrictive displacement sensor is connected between the tail end clamping block and the magnetic ring in a sliding manner. The field steel plate, the tail end clamping block, the supporting rod, the magnetic ring and the magnetostrictive displacement sensor are used in cooperation, a contact type measurement mode is adopted, based on magnetostrictive displacement measurement, the explosion cover plate receiving explosion is connected to directly obtain the displacement value, and the explosion energy can be directly calculated through the displacement value and the mass of the explosion cover plate; meanwhile, parameters required by projects can be obtained according to conversion formulas of different projects, and compared with a non-contact measurement method, the measurement result is more accurate, and the data precision is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of explosive engineering, in particular to a contact type measuring system for measuring the displacement of an object after explosion. BACKGROUND

[0002] In the blasting engineering, the measurement and control of the displacement of small explosives or large objects affected by the environment explosion, the control of the influence of explosion and the measurement of the displacement of objects of a certain mass affected by the explosion are required. For example, the factories with explosion risks, the bridge buildings easily affected by the explosion and the like, and for some special engineering, corresponding protective technical measures or calculation parameters are required to quantify the energy, power and influence generated by the explosion process.

[0003] The existing measurement methods are non-contact methods or indirect calculation methods to obtain data such as thermal radiation, energy tester and damage degree of explosion sample to convert into explosion energy. These methods cannot realize the displacement measurement and explosion capacity quantification of small explosives and large flat objects such as tempered glass, steel plate and surface. SUMMARY

[0004] The present application aims to provide a contact type measuring system for measuring the displacement of an object after explosion, which has the advantages of high measurement accuracy and solves the problem that the traditional measurement method cannot realize the displacement measurement and explosion capacity quantification of small explosives and large flat objects such as tempered glass, steel plate and surface.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A contact type measuring system for measuring the displacement of an object after explosion, comprising a field steel plate, two support rods are fixedly connected to the top of the field steel plate, an end clamping block is fixedly connected to the bottom between the two support rods, a magnetic ring is fixedly connected to the top of the two support rods through bolts, a magnetostrictive displacement sensor is slidably connected between the end clamping block and the magnetic ring, the support rods and the magnetic ring are freely movable within the range of the magnetostrictive displacement sensor, an acquisition device is electrically connected to the top of the magnetostrictive displacement sensor through wires, and the range of the magnetostrictive displacement sensor is replaced according to different environments and different measurement fields.

[0007] Through the cooperation of the field steel plate, the end clamping block, the support rod, the magnetic ring and the magnetostrictive displacement sensor, the displacement value is directly obtained by adopting a contact measurement mode based on magnetostrictive displacement measurement and connecting the explosion cover plate subjected to explosion, and the explosion energy is directly calculated through the displacement value and the mass of the explosion cover plate, and the parameters required by the project are obtained according to different engineering conversion formulas, the speed change of the object after being affected by explosion is measured, and the parameters in different explosion fields are obtained through different calculation formulas.

[0008] Preferably, the field steel plate can be replaced by a plate made of other materials.

[0009] Preferably, the magnetostrictive displacement sensor has a range of 300 mm, outputs real-time displacement value data through a signal SSI, and updates data every 0.5 ms.

[0010] The application also provides an operation method of the contact measurement system for measuring the displacement of an object after explosion.

[0011] A. The field steel plate covers the small explosive or is attached to the surface subjected to displacement caused by explosion, when explosion occurs, the field steel plate drives the two support rods and the magnetic ring to move, and the magnetostrictive displacement sensor outputs the displacement signal of the movement process of the field steel plate connected after explosion.

[0012] B. The collector collects the displacement signal amount in the whole measurement process to obtain the displacement s of the field steel plate from the starting point to the displacement end point.

[0013] C. According to the energy formula of explosion engineering and the mass M of the field steel plate, the explosion energy of the small explosive and the displacement of the object after being affected by explosion can be calculated, and the corresponding quantitative analysis data can be obtained according to different engineering calculation formulas.

[0014] Preferably, in step C, the calculation method of the explosion energy of the small explosive is Q=M*s.

[0015] Preferably, in step C, the quantitative analysis data includes the explosion influence F.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] 1. This invention utilizes a combination of on-site steel plates, end clamping blocks, struts, magnetic rings, and magnetostrictive displacement sensors. By employing a contact-based measurement method, based on magnetostrictive displacement measurement, the displacement value is directly obtained by connecting to the explosion cover plate being exploded. Furthermore, the explosion energy can be directly calculated from the displacement value and the mass of the explosion cover plate. Additionally, the parameters required for different projects can be obtained based on conversion formulas. The measurement results are more accurate and have better data precision than non-contact measurement methods.

[0018] 2. This invention enables a wide range of measurement data by replacing magnetostrictive displacement sensors with different ranges according to different environments and measurement fields. By changing different plates according to the field conditions, the flexibility of the system can be guaranteed. Moreover, this measurement system can measure the velocity change of an object bounced off the ground after being affected by an explosion, and obtain parameters for different explosion fields by different calculation formulas, making it widely applicable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] In the diagram: 1. On-site steel plate; 2. End clamping block; 3. Support rod; 4. Magnetic ring; 5. Magnetostrictive displacement sensor. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] All components of this invention are general standard parts or parts known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] Please see Figure 1The application discloses a contact type measuring system for measuring displacement of an object after explosion, which comprises a field steel plate 1, the field steel plate 1 can be replaced by a plate made of other materials, two supporting rods 3 are fixedly connected to the top of the field steel plate 1, a terminal clamping block 2 is fixedly connected to the bottom between the two supporting rods 3, a magnetic ring 4 is fixedly connected to the top of the two supporting rods 3 through bolts, a magnetostrictive displacement sensor 5 is slidably connected between the terminal clamping block 2 and the magnetic ring 4, the supporting rods 3 and the magnetic ring 4 can freely move within the range of the magnetostrictive displacement sensor 5, the top of the magnetostrictive displacement sensor 5 is electrically connected to a collector through wires, the range of the magnetostrictive displacement sensor 5 can be replaced according to different environments and different measuring fields, the magnetostrictive displacement sensor 5 has a range of 300 mm, a signal SSI outputs real-time displacement value data, the magnetostrictive displacement sensor 5 updates data once every 0.5 ms, the magnetostrictive displacement sensor 5 with different ranges is replaced according to different environments and different measuring fields, so that the measuring data range is wide, different plates are replaced according to field conditions, the flexibility of the system is ensured, the measuring system can measure the speed change of an object after being affected by explosion, and different calculation formulas can obtain parameters in different explosion fields, the application range is wide, the field steel plate 1, the terminal clamping block 2, the supporting rods 3, the magnetic ring 4 and the magnetostrictive displacement sensor 5 are used in cooperation, a contact type measuring method is adopted, displacement measurement based on magnetostriction is carried out, displacement values are directly obtained by connecting the explosion cover plate affected by explosion, the displacement values and the mass of the explosion cover plate can be directly used to calculate explosion energy, parameters required by engineering can also be obtained according to different engineering conversion formulas, the measuring result is more accurate than that of a non-contact type measuring method, and data precision is better.

[0025] An operation method of a contact type measuring system for measuring displacement of an object after explosion comprises the following steps.

[0026] A, the field steel plate 1 covers small explosive objects or is attached to a surface affected by explosion and subjected to displacement, when explosion occurs, the field steel plate 1 drives the two supporting rods 3 and the magnetic ring 4 to move, and the magnetostrictive displacement sensor 5 outputs displacement signals of the movement process of the field steel plate 1 connected after explosion;

[0027] B, the collector collects displacement signal amounts in the whole measuring process to obtain displacement s of the field steel plate 1 from a starting point to a displacement end point;

[0028] C, according to an energy formula of explosion engineering and the mass M of the field steel plate 1, the energy Q = M * s can be calculated, the measuring system measures explosion energy of the small explosive objects, displacement of the object after being affected by explosion, and corresponding quantitative analysis data such as explosion influence F can also be obtained according to different calculation formulas of engineering.

[0029] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A contact measurement system for measuring the displacement of an object after an explosion, comprising a field steel plate (1), characterized in that: Both sides of the top of the field steel plate (1) are fixedly connected with struts (3), the bottom between the two struts (3) is fixedly connected with an end clamping block (2), the top of the two struts (3) is fixedly connected with a magnetic ring (4) through bolts, the end clamping block (2) and the magnetic ring (4) are slidably connected with a magnetostrictive displacement sensor (5), the struts (3) and the magnetic ring (4) are freely moved within the range of the magnetostrictive displacement sensor (5), the top of the magnetostrictive displacement sensor (5) is electrically connected with a collector through wires, and the range of the magnetostrictive displacement sensor (5) is replaced according to different environments and different measurement fields. Through the cooperation of the field steel plate (1), the end clamping block (2), the strut (3), the magnetic ring (4) and the magnetostrictive displacement sensor (5), by adopting a contact type measurement method, based on the displacement measurement of magnetostriction, the displacement value is directly obtained by connecting the explosion cover plate subjected to explosion, and the explosion energy is directly calculated through the displacement value and the mass of the explosion cover plate, and the parameters required by the project are obtained according to different engineering conversion formulas, the speed change of the whole process of the object after being affected by explosion can be measured, and different calculation formulas are used to obtain parameters in different explosion fields.

2. The contact measurement system for measuring the displacement of an object after an explosion according to claim 1, wherein: The field steel plate (1) can be replaced by other material plates.

3. The contact measurement system for measuring the displacement of an object after an explosion as recited in claim 1, wherein: The magnetostrictive displacement sensor (5) has a range of 300mm, and outputs real-time displacement value data with SSI signal.

4. A method of operating a contact measurement system for measuring the displacement of an object after an explosion, characterized by: The method comprises the following steps: A, the field steel plate (1) covers the small explosive or is attached to the surface subjected to displacement caused by explosion, when the explosion occurs, the field steel plate (1) drives the two struts (3) and the magnetic ring (4) to move, and the magnetostrictive displacement sensor (5) outputs the displacement signal of the movement process of the connected field steel plate (1) after the explosion; B, the collector collects the displacement signal amount of the whole measurement process to obtain the displacement amount s of the field steel plate (1) from the starting point to the displacement end point; C, according to the energy formula of the explosion project and the mass M of the field steel plate (1), the explosion energy of the small explosive and the displacement amount of the object after being affected by explosion can be calculated, and corresponding quantitative analysis data can be obtained according to different engineering calculation formulas.

5. The method of operating a contact measurement system for measuring the displacement of an object after an explosion as defined in claim 1, wherein: In step C, the calculation method of the explosion energy of the small explosive is Q=M*s.

6. The method of operating a contact measurement system for measuring the displacement of an object after an explosion as defined in claim 1, wherein: In step C, the quantitative analysis data includes the explosion influence F.

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