A multi-object integrated fiber optic grating intelligent temperature measurement device

Abstract

This utility model discloses a multi-object integrated fiber Bragg grating intelligent temperature measurement device, belonging to the technical field of fiber Bragg grating temperature measurement equipment. It includes a fiber Bragg grating sensor array module, an integrated fiber optic protective cabling module disposed on the front side of the fiber Bragg grating sensor array module, an adjustable mounting base fixedly connected to the bottom of the fiber Bragg grating sensor array module, and a fiber Bragg grating demodulation module disposed on the upper surface of the adjustable mounting base near one side. This utility model utilizes a pluggable structure between the sensor subunits and the integrated connector within the fiber Bragg grating sensor array module. Through a snap-fit ​​connector and a slot with an annular sealing ring, the sensor subunits can be quickly installed and removed. Sensors suitable for different scenarios can be replaced without disassembling the entire device, significantly simplifying maintenance. Simultaneously, the annular sealing ring effectively enhances the sealing performance between the sensor subunits and the integrated connector, preventing the intrusion of media such as oil and dust.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber optic grating temperature measurement equipment, specifically a multi-object integrated fiber optic grating intelligent temperature measurement device. Background Technology

[0002] In the industrial production sector, industries such as power, chemical, and new energy storage have an urgent need for temperature monitoring of key equipment (such as transformers, reactors, and battery clusters). Fiber optic grating temperature measurement technology has become one of the mainstream temperature measurement solutions due to its advantages such as resistance to electromagnetic interference, high temperature resistance, and high accuracy.

[0003] However, existing fiber Bragg grating temperature measurement devices still have certain problems in practical applications: the sensors of existing fiber Bragg grating temperature measurement devices are mostly fixedly connected to the main structure (such as welding or integrated injection molding). When it is necessary to replace the sensor for different scenarios (such as the high voltage resistance requirements of the power industry or the explosion-proof requirements of the chemical industry), the entire device structure needs to be disassembled, which is not only cumbersome and time-consuming, but also easy to damage other components. In addition, there is a lack of reliable sealing structure between the sensor and the integrated interface. In harsh environments such as oil immersion or dust, media leakage or dust intrusion is likely to occur, leading to sensor failure and affecting the stability of temperature measurement. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a multi-object integrated fiber Bragg grating intelligent temperature measurement device. This device utilizes a pluggable structure between the fiber Bragg grating sensor array module and the integrated connector. Through a snap-fit ​​connector and a slot with an annular sealing ring, the sensor sub-units can be quickly assembled and disassembled. Sensors suitable for different scenarios can be replaced without disassembling the entire device, significantly simplifying maintenance. Simultaneously, the annular sealing ring effectively enhances the sealing performance between the sensor sub-unit and the integrated connector, preventing the intrusion of media such as oil and dust, and ensuring stable operation of the sensor in harsh environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-object integrated fiber Bragg grating intelligent temperature measurement device, including a fiber Bragg grating sensor array module;

[0006] An integrated fiber optic protective cabling module is located on the front side of the fiber Bragg grating sensor array module.

[0007] An adjustable mounting base is fixedly connected to the bottom of the fiber Bragg grating sensor array module;

[0008] The fiber Bragg grating demodulation module is disposed on the upper surface of one side of the adjustable mounting base. The bottom surface of the fiber Bragg grating demodulation module is detachably and fixedly connected to the upper surface of the adjustable mounting base via mounting ears.

[0009] A height adjustment component is fixedly connected to the bottom of an adjustable mounting base, the height adjustment component being used to adjust the horizontal height of the adjustable mounting base.

[0010] As a preferred embodiment of this utility model, the fiber optic grating sensor array module includes multiple sensor sub-units and an integrated plug socket. One end of each sensor sub-unit is provided with a snap-fit ​​connector, and the top of the integrated plug socket is provided with a slot with an annular sealing ring. The sensor sub-units are detachably and fixedly connected to the slot via the snap-fit ​​connectors.

[0011] As a preferred embodiment of this utility model, the integrated fiber optic protective cabling module includes a fixed horizontal plate, which is fixedly connected to the front side of the fiber optic grating sensor array module. Multiple positioning blocks are slidably connected to the front side of the fixed horizontal plate. An adjusting limit plate is rotatably connected to the side of the positioning block away from the fixed horizontal plate through a shaft seat. A flipping limit plate abuts against the rear side of one end of the adjusting limit plate. A transverse sliding groove is provided on the front side of the fixed horizontal plate, and one end of the positioning block is slidably connected to the inner wall of the transverse sliding groove through a T-shaped slider.

[0012] As a preferred embodiment of this utility model, one end of the positioning block is fixedly connected to a magnetic sticking block, and the magnetic sticking block is magnetically attracted to the rear side of the adjustment limiting plate.

[0013] As a preferred embodiment of this utility model, a threaded bottom ring is fixedly connected to the bottom surface of the positioning block, and a threaded adjusting rod is threadedly connected to the inner wall of the threaded bottom ring.

[0014] As a preferred embodiment of this utility model, the height adjustment component includes a receiving frame, which is fixedly connected to the bottom surface of the adjustable mounting base. A bottom frame is movably connected to the outer wall of the receiving frame near the bottom end. A plurality of adjustment docking holes are provided on the outer wall of the receiving frame near the bottom end, and fastening bolts that movably penetrate the bottom frame are threadedly connected to the inner wall of the adjustment docking holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The fiber Bragg grating sensor array module of this utility model adopts a pluggable structure of sensor sub-units and integrated plug sockets. Through the cooperation of snap-fit ​​connectors and slots with annular sealing rings, the sensor sub-units can be quickly disassembled and assembled. Sensors adapted to different scenarios can be replaced without disassembling the whole device, which greatly simplifies maintenance operations. At the same time, the annular sealing ring can effectively enhance the sealing performance of the sensor sub-units and integrated plug sockets, prevent the intrusion of media such as oil and dust, and ensure the stable operation of the sensor in harsh environments.

[0017] 2. This utility model's integrated fiber optic protective cabling module forms a multi-level fiber optic positioning structure through a fixed horizontal plate, a sliding positioning block, and a flip-up adjustable limiting plate. The lateral movement design of the positioning block can adapt to the cabling requirements of different numbers of optical fibers. The adjustable limiting plate angle and magnetic adsorption fixation of the magnetic adhesive block ensure that the optical fiber is firmly clamped and avoids excessive bending. The cooperation between the threaded adjusting rod and the threaded bottom ring can lock the position of the positioning block, effectively preventing the optical fiber from loosening due to vibration, reducing optical signal transmission loss, and improving the reliability and long-term stability of the fiber optic cabling.

[0018] 3. The multi-position adjustment docking hole design of the height adjustment component of this utility model can realize precise adjustment of the device height, effectively compensate for the flatness error of the equipment surface, ensure that the device is level after installation, and ensure the tight fit between the sensor subunit and the monitored object; the abutting cooperation between the flip limit plate and the adjustment limit plate of the integrated fiber optic protective wiring module further enhances the stability of fiber optic limit, avoids temperature measurement errors caused by fiber displacement, and improves the overall temperature measurement accuracy and operational reliability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the integrated fiber optic protective cabling module of this utility model;

[0022] Figure 4 This is a schematic diagram of the receiving structure of this utility model.

[0023] In the diagram: 1. Fiber Bragg grating sensor array module; 2. Integrated fiber optic protective cabling module; 3. Fiber Bragg grating demodulation module; 4. Adjustable mounting base; 5. Sensor subunit; 6. Integrated plug socket; 7. Snap-fit ​​connector; 8. Mounting ear; 10. Receiving frame; 11. Fixed cross plate; 12. Positioning block; 13. Adjustable limit plate; 14. Magnetic adhesive block; 15. Threaded bottom ring; 16. Threaded adjusting rod; 17. Flip limit plate; 18. Base frame; 19. Fastening bolt; 20. Adjustable docking hole. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a multi-object integrated fiber optic grating intelligent temperature measurement device, including a fiber optic grating sensor array module 1;

[0030] Integrated fiber optic protective cabling module 2 is located on the front side of fiber optic grating sensor array module 1;

[0031] An adjustable mounting base 4 is fixedly connected to the bottom of the fiber optic grating sensor array module 1;

[0032] The fiber Bragg grating demodulation module 3 is disposed on the upper surface of one side of the adjustable mounting base 4. The bottom surface of the fiber Bragg grating demodulation module 3 is detachably and fixedly connected to the upper surface of the adjustable mounting base 4 via mounting ears 8.

[0033] A height adjustment component is fixedly connected to the bottom of the adjustable mounting base 4. The height adjustment component is used to adjust the horizontal height of the adjustable mounting base 4.

[0034] Specifically, the fiber Bragg grating sensor array module 1 adopts a pluggable structure of sensor sub-unit 5 and integrated plug socket 6. Through the snap-fit ​​connector 7 and the slot with an annular sealing ring, the sensor sub-unit 5 can be quickly installed and removed. Sensors suitable for different scenarios can be replaced without disassembling the whole device, which greatly simplifies maintenance operations. At the same time, the annular sealing ring can effectively enhance the sealing performance of sensor sub-unit 5 and integrated plug socket 6, prevent the intrusion of media such as oil and dust, and ensure the stable operation of the sensor in harsh environments.

[0035] Example 2

[0036] The second embodiment of this utility model provides a technical solution: the fiber optic grating sensor array module 1 includes multiple sensor sub-units 5 and an integrated plug socket 6. One end of the sensor sub-unit 5 is provided with a snap-fit ​​connector 7, and the top of the integrated plug socket 6 is provided with a slot with an annular sealing ring. The sensor sub-unit 5 is detachably and fixedly connected to the slot through the snap-fit ​​connector 7.

[0037] The integrated fiber optic protective cabling module 2 includes a fixed horizontal plate 11, which is fixedly connected to the front side of the fiber optic grating sensor array module 1. Multiple positioning blocks 12 are slidably connected to the front side of the fixed horizontal plate 11. An adjustment limit plate 13 is rotatably connected to the side of the positioning block 12 away from the fixed horizontal plate 11 through a shaft seat. A flip limit plate 17 is abutted against the rear side of one end of the adjustment limit plate 13. A transverse sliding groove is opened on the front side of the fixed horizontal plate 11. One end of the positioning block 12 is slidably connected to the inner wall of the transverse sliding groove through a T-shaped slider.

[0038] A magnetic sticking block 14 is fixedly connected to one end of the positioning block 12, and the magnetic sticking block 14 is magnetically attracted to the rear side of the adjustment limit plate 13.

[0039] A threaded bottom ring 15 is fixedly connected to the bottom surface of the positioning block 12, and a threaded adjusting rod 16 is threadedly connected to the inner wall of the threaded bottom ring 15.

[0040] Example 3

[0041] The third embodiment of this utility model provides a technical solution: the height adjustment component includes a receiving frame 10, the receiving frame 10 is fixedly connected to the bottom surface of the adjustable mounting base 4, the outer wall of the receiving frame 10 near the bottom end is movably connected to a bottom frame 18, the outer wall of the receiving frame 10 near the bottom end is provided with a plurality of adjustment docking holes 20, and the inner wall of the adjustment docking holes 20 is threaded with a fastening bolt 19 that movably passes through the bottom frame 18.

[0042] Specifically, the multi-position adjustment docking hole 20 of the height adjustment component can achieve precise adjustment of the device height, effectively compensate for the flatness error of the equipment surface, ensure that the device is level after installation, and ensure the tight fit between the sensor subunit 5 and the monitored object; the abutting cooperation between the flip limit plate 17 and the adjustment limit plate 13 of the integrated fiber optic protective wiring module 2 further enhances the stability of fiber optic limit, avoids temperature measurement errors caused by fiber displacement, and improves the overall temperature measurement accuracy and operational reliability of the device.

[0043] Example 4

[0044] The fourth embodiment of this utility model provides a technical solution: the fiber optic grating demodulation module 3 includes a demodulation motherboard, a built-in standard grating unit, and a switching switch; the built-in standard grating unit is placed in a constant temperature cavity, and the switching switch can automatically switch between the monitoring channel and the calibration channel.

[0045] Working principle:

[0046] First, based on the monitoring scenario requirements, select a suitable sensor sub-unit 5. Align the snap-fit ​​connector 7 at one end of the sensor sub-unit 5 with the slot with an annular sealing ring on the top of the integrated plug socket 6. Complete the assembly of the sensor sub-unit 5 and the integrated plug socket 6 through the detachable and fixed connection of the snap-fit ​​connector 7 and the slot, forming the fiber optic grating sensor array module 1. The sensor sub-unit 5 directly contacts the object to be monitored (such as the winding of a power transformer, the inner wall of a chemical reactor, etc.). When the temperature of the object to be monitored changes, the fiber optic grating in the sensor sub-unit 5 will cause a wavelength shift due to the temperature effect, thus realizing the initial acquisition of the temperature signal.

[0047] The optical fibers leading from the fiber Bragg grating sensor array module 1 need to be regulated and protected by the integrated fiber optic protective cabling module 2. A fixed horizontal plate 11 is fixedly connected to the front of the fiber Bragg grating sensor array module 1. Based on the number and direction of the optical fibers, the positioning block 12 is pushed—one end of the positioning block 12 slides in the transverse sliding groove on the front of the fixed horizontal plate 11 via a T-shaped slider. After adjusting to the appropriate position, the threaded adjusting rod 16, threaded to the inner wall of the threaded bottom ring 15, is rotated. The lifting and lowering of the threaded adjusting rod 16 tightens the fixed horizontal plate 11, thus achieving the positioning block... Position 12 is locked; then the adjusting limit plate 13 is flipped and adjusted. The adjusting limit plate 13 rotates on the side of the positioning block 12 away from the fixed horizontal plate 11 via the shaft seat until the rear side of one end of the adjusting limit plate 13 abuts against the flipping limit plate 17. At the same time, the magnetic adsorption block 14 at one end of the positioning block 12 magnetically attracts the rear side of the adjusting limit plate 13, further fixing the angle of the adjusting limit plate 13. At this time, the adjusting limit plate 13 and the positioning block 12 form a clamping and limiting of the optical fiber, avoiding the optical fiber from tangling, wear or excessive bending, and completing the protection of the optical fiber cabling.

[0048] The optical fiber, after being straightened by the integrated optical fiber protective cabling module 2, is connected to the fiber optic grating demodulation module 3. The fiber optic grating demodulation module 3 is detachably and fixedly connected to the upper surface of the adjustable mounting base 4 via the mounting ears 8 on the bottom, so as to achieve stable installation of the demodulation module. The fiber optic grating demodulation module 3 receives the optical signal with wavelength offset information transmitted by the sensor subunit 5, converts the optical signal into an electrical signal through the built-in demodulation circuit, and analyzes and calculates the temperature value of the corresponding monitoring point. At the same time, it can transmit the temperature data to an external monitoring system (such as a SCADA system) to realize real-time display and subsequent processing of temperature data.

[0049] The adjustable mounting base 4 has a height adjustment component fixedly connected to its bottom to adapt to the height and level requirements of different installation environments. The receiving frame 10 of the height adjustment component is fixedly connected to the bottom surface of the adjustable mounting base 4. The bottom frame 18 is movably fitted onto the outer wall of the receiving frame 10 near the bottom end. According to the height requirements of the installation site, the receiving frame 10 is moved up and down to adjust the overall level of the adjustable mounting base 4. After the height is adjusted to the target position, the fastening bolt 19 is passed through the bottom frame 18 and threaded into the adjustment docking hole 20 opened on the outer wall of the receiving frame 10 near the bottom end. The relative position of the receiving frame 10 and the bottom frame 18 is locked by the threaded engagement of the fastening bolt 19 and the adjustment docking hole 20, thereby fixing the height of the adjustable mounting base 4, ensuring that the overall device is compatible with the installation reference of the equipment to be monitored, and ensuring the accuracy and stability of temperature measurement.

[0050] In summary, the fiber Bragg grating sensor array module 1 adopts a pluggable structure of sensor sub-unit 5 and integrated plug socket 6. Through the snap-fit ​​connector 7 and the slot with an annular sealing ring, the sensor sub-unit 5 can be quickly installed and removed. Sensors suitable for different scenarios can be replaced without disassembling the entire device, greatly simplifying maintenance operations. At the same time, the annular sealing ring can effectively enhance the sealing performance of sensor sub-unit 5 and integrated plug socket 6, preventing the intrusion of media such as oil and dust, and ensuring the stable operation of the sensor in harsh environments.

[0051] The sensor subunit, magnetic block, and threaded adjustment rod used in this application can be additionally equipped with protective measures known in the art under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0052] It should be noted that the sensor subunit, magnetic adhesive block and threaded adjustment rod are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method and other methods of the device, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0055] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-object integrated fiber optic grating intelligent temperature measurement device, characterized in that: Includes fiber optic grating sensor array module (1); An integrated fiber optic protective cabling module (2) is located on the front side of the fiber optic grating sensor array module (1). An adjustable mounting base (4) is fixedly connected to the bottom of the fiber optic grating sensor array module (1). The fiber grating demodulation module (3) is disposed on the upper surface of the adjustable mounting base (4) near one side. The bottom surface of the fiber grating demodulation module (3) is detachably and fixedly connected to the upper surface of the adjustable mounting base (4) through the mounting ear (8). A height adjustment component is fixedly connected to the bottom of the adjustable mounting base (4), the height adjustment component being used to adjust the horizontal height of the adjustable mounting base (4). 2.The multi-object integrated fiber grating intelligent temperature measuring device according to claim 1, characterized in that: The fiber optic grating sensor array module (1) includes multiple sensor sub-units (5) and an integrated plug socket (6). One end of the sensor sub-unit (5) is provided with a snap-fit ​​connector (7). The top of the integrated plug socket (6) is provided with a slot with an annular sealing ring. The sensor sub-unit (5) is detachably and fixedly connected to the slot through the snap-fit ​​connector. 3.The multi-object integrated fiber grating intelligent temperature measuring device according to claim 1, characterized in that: The integrated fiber optic protective cabling module (2) includes a fixed horizontal plate (11), which is fixedly connected to the front side of the fiber optic grating sensor array module (1). Multiple positioning blocks (12) are slidably connected to the front side of the fixed horizontal plate (11). An adjustment limit plate (13) is rotatably connected to the side of the positioning block (12) away from the fixed horizontal plate (11) through a shaft seat. A flip limit plate (17) is abutted to the rear side of one end of the adjustment limit plate (13). A transverse sliding groove is opened on the front side of the fixed horizontal plate (11). One end of the positioning block (12) is slidably connected to the inner wall of the transverse sliding groove through a T-shaped slider. 4.The multi-object integrated fiber grating intelligent temperature measuring device according to claim 3, characterized in that: One end of the positioning block (12) is fixedly connected to a magnetic sticking block (14), and the magnetic sticking block (14) is magnetically attracted to the rear side of the adjustment limiting plate (13).

5. The multi-object integrated fiber optic grating intelligent temperature measurement device according to claim 3, characterized in that: The bottom surface of the positioning block (12) is fixedly connected to a threaded bottom ring (15), and the inner wall of the threaded bottom ring (15) is threadedly connected to a threaded adjusting rod (16). 6.The multi-object integrated fiber grating intelligent temperature measuring device according to claim 1, characterized in that: The height adjustment assembly includes a receiving frame (10), which is fixedly connected to the bottom surface of the adjustable mounting base (4). A bottom frame (18) is movably connected to the outer wall of the receiving frame (10) near the bottom end. A plurality of adjustment docking holes (20) are provided on the outer wall of the receiving frame (10) near the bottom end. A fastening bolt (19) that movably passes through the bottom frame (18) is threaded onto the inner wall of the adjustment docking hole (20).

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