A wireless supermagnetic high-stability seismic source with integrated high-voltage module

Abstract

The utility model discloses a wireless super magnetostrictive high-stability seismic source with an integrated high-voltage module, comprising: a shell, which provides installation space and structural support; a battery, which is electrically connected to the high-voltage module and a core board and is used to provide electric energy; a high-voltage module, which is used to convert low-voltage direct current into high-voltage direct current; a high-voltage drive circuit board, which is controlled by the core board and is used to convert high-voltage direct current into an excitation current; a core board, which is used to control system operation; a wireless communication module, which is used to receive and forward control instructions from an external host to the core board; a super magnetostrictive module, which is driven by the excitation current to generate a vibration signal; the utility model not only eliminates the safety hazards caused by external cable connections, but also improves the portability and flexibility of the equipment, and meets the needs of modern engineering detection for safe, efficient and portable seismic source equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of supermagnetic seismic sources, in particular to a wireless supermagnetic high-stability seismic source with an integrated high-voltage module. Background Art

[0002] Supermagnetic high-stability seismic source is widely used in the field of contemporary non-destructive engineering testing. It has many advantages such as large emission energy, wide frequency band, good repeatability, short aftershock, short delay and fixedness. It is widely used in the fields of highway guardrail column burial depth detection, reinforced concrete defect detection and box girder bridge sleeve grouting quality detection.

[0003] However, when working, supermagnetic materials require high voltages of up to hundreds of volts to generate a sudden change in magnetic field, which poses a challenge to the operational safety of the equipment. At present, most supermagnetic high-stable seismic sources rely on an external host to provide a high-voltage power supply of more than 500V, which is connected to the seismic source via a cable. This method has obvious safety hazards, especially when the cable is worn, the operator faces the risk of electric shock.

[0004] In order to reduce the risk, some proposals have been made to use an external power conversion module to convert the low-voltage electricity provided by the host into high voltage and then connect it to the source. However, this solution does not fundamentally solve the safety problem, and because the source and the power module are independent components, they require multiple people to operate in actual use, which brings inconvenience to practical applications.

[0005] Therefore, in actual engineering applications, there is an urgent need for a seismic source device that is both safe and can be operated with one hand. Summary of the invention

[0006] The purpose of the utility model is to provide a wireless super-magnetic high-stability seismic source with an integrated high-voltage module to address the problems existing in the prior art. It not only eliminates the safety hazards caused by external cable connections, but also improves the portability and flexibility of the equipment, and meets the needs of modern engineering detection for safe, efficient and portable seismic source equipment.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A wireless giant magnetostrictive high-stability seismic source with an integrated high-voltage module comprises: a housing providing installation space and structural support; a battery electrically connected to the high-voltage module and a core board for providing electrical energy; a high-voltage module for converting low-voltage direct current into high-voltage direct current; a high-voltage drive circuit board controlled by the core board for converting high-voltage direct current into an excitation current; a core board for controlling system operation; a wireless communication module for receiving and forwarding control instructions from an external host to the core board; and a giant magnetostrictive module driven by the excitation current to generate a vibration signal.

[0009] The shell is provided with a cable interface, which is electrically connected to the high-voltage module, allowing low-voltage DC power from an external power source to be input and converted into high-voltage DC power; the core board is electrically connected to the cable interface for receiving control instructions from an external host.

[0010] The giant magnetostrictive module includes: an inductance box, both the head and tail ends of which are provided with external threads, and the head end of the inductance box is connected to the shell by threads; an electromagnetic coil, which is fixed in the inductance box and electrically connected to the output end of the high-voltage driving circuit board; a giant magnetostrictive rod, which is placed in the electromagnetic coil and the tail end of which is fixed to the inductance box; a clamping cover, which is connected to the head end of the inductance box by threads and is provided with a narrow opening; and an exciting head, whose tail end is provided with a retaining ring that abuts against the giant magnetostrictive rod, and the retaining ring is limited in the inductance box by the narrow opening, and the head end of the exciting head extends out of the narrow opening for contacting the measured object.

[0011] The high voltage module is a DC to DC power conversion module, which is used to convert 12V DC power into 500V high voltage output.

[0012] The shell is manufactured by 3D printing technology. The shell includes a battery compartment that is ergonomically designed and is easy to hold with one hand. The battery is fixed in the battery compartment.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By integrating a high-voltage module inside the device, the low-voltage DC power provided by the battery is converted into high-voltage DC power, and then the high-voltage DC power is converted into an excitation current through a high-voltage driver circuit board, ensuring the accuracy and stability of the excitation current; the internal conversion mechanism eliminates the need for the device to rely on an external high-voltage power supply, thereby simplifying the power supply configuration and connection process; since there are potential dangers such as electric shock and electric arc when connecting to an external high-voltage power supply, internal voltage conversion is used to avoid direct connection to an external high-voltage power supply, significantly reducing safety risks during operation.

[0015] Since the device exchanges information with the external host through the wireless communication module and does not rely on an external high-voltage power supply, it completely gets rid of the traditional wired connection method. It not only eliminates problems such as cable entanglement, damage or poor contact, but also allows the device to be freely carried to any place required for work without being restricted by cable length and layout, greatly improving the portability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a seismic source in one embodiment of the present application;

[0017] Figure 2 A plan view of a seismic source in one embodiment of the present application;

[0018] Figure 3 This is a connection diagram of various components of the seismic source in an embodiment of the present application;

[0019] In the figure: 1. outer shell; 101. battery compartment; 2. battery; 3. high-voltage drive circuit board; 4. core board; 5. inductor box; 6. electromagnetic coil; 7. super magnetic rod; 8. clamping cover; 9. vibration head. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication 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.

[0024] like Figures 1 to 3As shown, a wireless giant magnetostrictive high-stability seismic source with integrated high-voltage module includes: a shell 1, which provides installation space and structural support; a battery 2, which is electrically connected to the high-voltage module and the core board and is used to provide electrical energy; a high-voltage module, which is used to convert low-voltage direct current into high-voltage direct current; a high-voltage drive circuit board 3, which is controlled by the core board and is used to convert high-voltage direct current into excitation current; a core board 4, which is used to control system operation; a wireless communication module, which is used to receive and forward control instructions from an external host to the core board; and a giant magnetostrictive module, which is driven by the excitation current to generate a vibration signal.

[0025] The working principle of the giant magnetostrictive source is based on the magnetostrictive effect of rare earth giant magnetostrictive materials. This material will change size under the action of a magnetic field, thereby outputting mechanical vibrations and forming an excitation source. By changing the magnetic field around the giant magnetostrictive material, the vibrations it generates can be controlled to achieve excitation of the object being measured.

[0026] Specifically in this embodiment, the battery 2 provides power to the high-voltage module, which then converts the low-voltage DC into high-voltage DC. The high-voltage driver circuit board 3, under the control of the core board 4, further converts the high-voltage DC into an excitation current of up to 30A. This excitation current is sent to the giant magnetostrictive module to drive the giant magnetostrictive material therein to produce the required mechanical vibration. At the same time, the wireless communication module is responsible for receiving control instructions from the external host and forwarding these instructions to the core board 4. The core board 4 accurately controls the working state of the high-voltage driver circuit board 3 according to these instructions, thereby realizing accurate regulation of the vibration generated by the giant magnetostrictive material.

[0027] This embodiment integrates a high-voltage module inside the device to convert the low-voltage DC power provided by the battery into high-voltage DC power, and then converts the high-voltage DC power into an excitation current through a high-voltage driver circuit board, thereby ensuring the accuracy and stability of the excitation current. This internal conversion mechanism eliminates the need for the device to rely on an external high-voltage power supply, thereby simplifying the power supply configuration and connection process. In addition, since there are potential dangers such as electric shock and electric arc when connecting to an external high-voltage power supply, internal voltage conversion is used to avoid direct external high-voltage power supply, significantly reducing safety risks during operation.

[0028] In addition, since the device exchanges information with the external host through the wireless communication module and does not rely on an external high-voltage power supply, it has completely gotten rid of the traditional wired connection method. It not only eliminates problems such as cable entanglement, damage or poor contact, but also allows the device to be freely carried to any place needed to work without being restricted by cable length and layout, greatly improving the portability and flexibility of the device.

[0029] In some embodiments, the housing 1 is provided with a cable interface, which is electrically connected to the high-voltage module, allowing low-voltage DC power from an external power source to be input and converted into high-voltage DC power; the core board 4 is electrically connected to the cable interface for receiving control instructions from an external host.

[0030] This embodiment provides a dual power supply option, which is electrically connected to the high-voltage module through a cable interface, so that in addition to the built-in battery power supply, the device also supports connection to an external power supply through a cable interface; when working for a long time or the battery is low, the device can be continuously powered by an external power supply to ensure continuity and stability of operation.

[0031] By integrating a high-voltage module internally, the low-voltage DC power of the external power supply is input through the cable interface and then converted into high-voltage DC power by the high-voltage module, so that the connected external power supply can be no higher than the safety voltage of 36V, thus ensuring safety.

[0032] In some embodiments, the giant magnetostrictive module includes: an inductor box 5, which has external threads at its front and rear ends, and the front end of the inductor box 5 is connected to the outer shell 1 by threads; an electromagnetic coil 6, which is fixed in the inductor box 5 and electrically connected to the output end of the high-voltage driving circuit board 3; a giant magnetostrictive rod 7, which is placed in the electromagnetic coil 6 and has its rear end fixed to the inductor box 5; a clamping cover 8, which is connected to the front end of the inductor box 5 by threads and has a narrow opening; an exciting head 9, whose rear end is provided with a retaining ring that abuts against the giant magnetostrictive rod 7, and the retaining ring is limited in the inductor box 5 by the narrow opening, and the front end of the exciting head 9 extends out of the narrow opening for contacting the test piece.

[0033] Specifically, when the high-voltage driving circuit board 3 outputs current, the electromagnetic coil 6 generates a strong sudden magnetic field, which acts on the giant magnetostrictive rod 7, causing it to produce a magnetostrictive effect; due to the magnetostrictive effect, the giant magnetostrictive rod 7 will be deformed, thereby driving the excitation head 9 to vibrate, and the head end of the excitation head 9 contacts the measured object, transferring the vibration energy to the measured object. By adjusting the magnitude and direction of the current output by the high-voltage driving circuit board 3, the strength and direction of the magnetic field generated by the electromagnetic coil 6 can be controlled, thereby controlling the deformation degree of the giant magnetostrictive rod 7 and the vibration amplitude and frequency of the excitation head 9.

[0034] The inductance box 5 is connected to the outer shell 1 and the clamping cover 8 through threads, the clamping cover 8 is connected to the inductance box 5 through threads, and the retaining ring at the tail end of the excitation head 9 is limited in the inductance box 5 by a narrow mouth. This connection method has the advantages of stable structure, easy assembly and disassembly, good sealing, and precise positioning and limiting effects.

[0035] In some embodiments, the high-voltage module is a DC-to-DC power conversion module, which is used to convert a 12V DC power supply into a 500V high-voltage output. The high-voltage module gradually increases the input 12V DC voltage through internal electronic circuits and transformers and other components until it reaches a 500V high-voltage output. During the voltage conversion process, the module also has a voltage stabilization function to ensure the stability of the output voltage. At the same time, it is also equipped with a variety of protection measures, such as overvoltage protection, overcurrent protection, etc., to ensure safe use.

[0036] In some embodiments, the housing 1 is manufactured using a 3D printing process, and the housing 1 includes an ergonomically designed battery compartment 101, which is convenient for one-handed holding, and the battery 2 is fixedly arranged in the battery compartment 101. The battery compartment 101 not only provides the function of fixing and protecting the battery 2, but also provides a comfortable grip, improves the user experience, and enhances the portability and practicality of the device. The 3D printing process is suitable for realizing complex designs and detail requirements, thereby facilitating the molding of the battery compartment 101 and making the battery compartment 101 ergonomically designed.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wireless supermagnetic high-stability seismic source with integrated high-voltage module, characterized in that: include: A housing (1) providing installation space and structural support; A battery (2), electrically connected to the high voltage module and the core board, for providing electrical energy; High voltage module, used to convert low voltage DC power into high voltage DC power; A high-voltage driving circuit board (3), controlled by the core board, for converting high-voltage direct current into an excitation current; A core board (4), used to control system operation; Wireless communication module, used to receive and forward control instructions from an external host to the core board; The giant magnetostrictive module is driven by the excitation current to generate a vibration signal.

2. The wireless supermagnetic high-stability seismic source with integrated high-voltage module according to claim 1 is characterized in that: The housing (1) is provided with a cable interface, the cable interface being electrically connected to the high-voltage module, allowing low-voltage direct current power from an external power source to be input and converted into high-voltage direct current power; The core board (4) is electrically connected to the cable interface and is used to receive control instructions from an external host.

3. The wireless supermagnetic high-stability seismic source with integrated high-voltage module according to claim 1 is characterized in that: The super magnetostrictive module comprises: The inductor box (5) has external threads at its front and rear ends, and the front end of the inductor box (5) is connected to the housing (1) via threads; An electromagnetic coil (6) is fixed in the inductance box (5) and electrically connected to the output end of the high-voltage driving circuit board (3); A super magnetobar (7) is placed in the electromagnetic coil (6), and its tail end is fixed to the inductance box (5); A compression cover (8) is connected to the head end of the inductance box (5) by means of threads and is provided with a narrow opening; The excitation head (9) has a retaining ring at its rear end that abuts against the giant magnetobar (7), the retaining ring being limited by the narrow opening in the inductance box (5), and the front end of the excitation head (9) extending out of the narrow opening for contacting the object to be tested.

4. The wireless supermagnetic high-stability seismic source with integrated high-voltage module according to claim 1 is characterized in that: The high voltage module is a DC to DC power conversion module, which is used to convert 12V DC power into 500V high voltage output.

5. The wireless supermagnetic high-stability seismic source with integrated high-voltage module according to claim 1 is characterized in that: The housing (1) is manufactured using a 3D printing process, and comprises an ergonomically designed battery compartment (101) that is convenient for one-handed holding, and the battery (2) is fixedly disposed in the battery compartment (101).

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