Mounting bracket and displacement sensor

Abstract

The utility model relates to the technical field of sensors. In view of the problems of difficult wiring and inconvenient installation between a circuit board and a sensitive element of a magnetostrictive displacement sensor in the prior art, the application provides an installation support and a displacement sensor, the installation support comprises a bottom plate comprising an end face and a first positioning groove; the first positioning groove is formed in the end face, penetrates through the bottom plate and is used for assembling a sensitive element; the vertical plate is arranged on the end face, divides the end face into two mounting areas and is used for assembling a circuit board; the vertical plate comprises a partition column and two supporting columns. The two supporting columns are oppositely arranged on the two sides of the end face correspondingly. The two ends of the partition column are connected with the two supporting columns correspondingly. The first positioning groove is located between the two supporting columns. The area formed by the partition column and the two supporting columns in a surrounding mode forms a clearance position above the first positioning groove, sufficient space is provided for wiring between the circuit board and the sensitive element, and wiring between the circuit board and the sensitive element is facilitated.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and more specifically, to a mounting bracket and a displacement sensor. Background Technology

[0002] Magnetostrictive displacement sensors are mainly used for hydraulic cylinder stroke detection and control, and are widely used in metallurgy, steel, port machinery, papermaking, chemical industry, new energy and other fields.

[0003] In related technologies, the core of a magnetostrictive displacement sensor is the core component, which typically includes a circuit board and a sensing element; both the circuit board and the sensing element are fixed on a circuit board support.

[0004] However, in actual installation, the limited space occupied by the circuit board and sensitive components greatly increases the complexity and difficulty of wiring. Utility Model Content

[0005] To address the difficulties in wiring between the circuit board and the sensing element in related technologies of magnetostrictive displacement sensors, and the inconvenience of installation.

[0006] The first aspect of this application is to provide a mounting bracket;

[0007] The second aspect of this application is to propose a displacement sensor.

[0008] In view of the above, according to the first aspect of this application, a mounting bracket is proposed for assembling the core of a displacement sensor, the core of which includes a circuit board and a sensing element; the mounting bracket includes: a base plate, including an end face and a first positioning groove; the first positioning groove is disposed on the end face and penetrates the base plate for assembling the sensing element; a vertical plate, disposed on the end face and dividing the end face into two mounting areas for assembling the circuit board; the vertical plate includes a partition post and two support posts; the two support posts are respectively disposed opposite to each other on both sides of the end face; the two ends of the partition post are respectively connected to the two support posts; wherein, the first positioning groove is located between the two support posts.

[0009] During actual installation, the circuit board is positioned in one of the installation areas and fixed to the vertical plate; the sensitive element is positioned within the first positioning groove. The guidance and constraint of the first positioning groove provide a clear installation location for the sensitive element, facilitating assembly and improving accuracy and stability during installation. Furthermore, the area enclosed by the partition and two support columns forms a first clearance space and a second clearance space above the first positioning groove. The first clearance space provides ample space for the wiring between the circuit board and the sensitive element, ensuring smooth and neat wiring and avoiding unnecessary compression or pulling of the wiring.

[0010] In some technical solutions, the mounting bracket may optionally include a second positioning groove; the second positioning groove is arranged around the periphery of the first positioning groove.

[0011] In practical applications, an insulating pad is placed between the sensitive element and the predetermined installation position. This pad effectively isolates the electrical connection between the sensitive element and the external environment, preventing potential electromagnetic interference, and also provides additional mechanical support, enhancing the stability of the sensitive element during installation. Therefore, in the above embodiment, by designing a second positioning groove, an installation position is provided for the insulating pad, allowing it to be quickly and accurately installed in the predetermined position, thereby greatly simplifying the assembly process and improving assembly efficiency.

[0012] In some technical solutions, the mounting bracket may optionally include a mounting base; the mounting base is disposed on both sides of the support column facing the two mounting areas respectively.

[0013] In the above technical solution, by designing a mounting base, a certain gap is created between the circuit board and the vertical plate, which facilitates wiring and allows operators to inspect and adjust the circuit during assembly and maintenance, thereby reducing the equipment failure rate caused by wiring problems.

[0014] In some technical solutions, the mounting base may optionally be provided with positioning holes. The positioning holes allow the circuit board to be precisely secured to the mounting base using appropriate first fasteners during installation.

[0015] In some technical solutions, optionally, the two installation areas are each provided with a fixing through hole.

[0016] During actual installation, the base plate and the base make contact. By designing a fixing through hole, the mounting bracket can be securely installed on the base using the corresponding second fastener.

[0017] According to a second aspect of this application, a displacement sensor is provided, comprising a core, a measuring assembly, and a mounting bracket as described in the first aspect of this application; wherein, the core includes a circuit board and a sensing element; the circuit board is disposed in one of two mounting areas and connected to a vertical plate; the sensing element is disposed in a first positioning groove; the measuring assembly includes a measuring rod, a position sensing element, and a positioning magnetic ring; the measuring rod is hollow inside; the position sensing element is disposed inside the measuring rod and connected to the sensing element; the positioning magnetic ring is sleeved on the outer periphery of the measuring rod and can move along the measuring rod.

[0018] Since the displacement sensor has the mounting bracket proposed by any of the above technical solutions, it has all the beneficial effects of any of the above technical solutions, which will not be elaborated here.

[0019] In some technical solutions, the displacement sensor may optionally include an electronic housing; wherein the core and mounting bracket are disposed within the electronic housing; and the measuring rod is connected to the electronic housing.

[0020] In the above technical solution, the core is housed in an electronic compartment, which provides a closed space that effectively prevents external media from affecting the core, thus protecting the core and ensuring the stability and accuracy of the displacement sensor, and also helps to extend the service life of the displacement sensor.

[0021] In some technical solutions, optionally, the electronic compartment includes: an outer cover having a first opening and a second opening disposed opposite to each other, the first opening and the second opening communicating with each other; a tail cover disposed at the first opening; a base disposed at the second opening; the base, the outer cover and the tail cover enclose a receiving space; the core and the mounting bracket are disposed within the receiving space, and the base plate and the base are in contact; the vertical plate is in contact with the tail cover; and the measuring rod is disposed on the side of the base away from the tail cover.

[0022] In some technical solutions, the core may optionally include a filter board, which is connected to the vertical plate and is disposed opposite to the circuit board on both sides of the vertical plate.

[0023] The filter board provides the circuit board with level signals and the displacement signal of the output positioning magnetic ring, thereby helping to improve the measurement accuracy and stability of the displacement sensor.

[0024] In some technical solutions, the displacement sensor may optionally include an air plug; the air plug passes through the tail cover and connects to the filter plate.

[0025] In the above technical solution, the filter board and external equipment are connected by a jet connector. The jet connector serves as a signal transmission channel, which can ensure that the pure signal processed by the filter board is stably transmitted to the external equipment. This connection method is not only stable and reliable, but also easy to maintain and replace, and helps to improve the measurement accuracy and stability of the displacement sensor.

[0026] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 A schematic diagram of the displacement sensor in an embodiment of this application is shown;

[0029] Figure 2 A schematic diagram of the mounting bracket and core in an embodiment of this application is shown;

[0030] Figure 3 One of the structural schematic diagrams of the mounting bracket in an embodiment of this application is shown;

[0031] Figure 4 The second schematic diagram of the mounting bracket in an embodiment of this application is shown.

[0032] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0033] 100 Mounting bracket; 110 Base plate; 111 End face; 1111 Fixing through hole; 112 First positioning groove; 113 Mounting area; 114 Process fixing hole; 120 Vertical plate; 121 Partition column; 122 Support column; 1211 Stepped surface; 123 First clearance space; 124 Second clearance space; 130 Second positioning groove; 140 Mounting base; 141 Positioning hole;

[0034] 200 Displacement sensor; 210 Core; 211 Circuit board; 212 Sensing element; 213 Filter board; 214 Insulating pad; 220 Measuring assembly; 221 Measuring rod; 222 Position sensing element; 223 Positioning magnetic ring; 224 End cap; 225 Non-magnetic pad; 230 Electronic compartment; 231 Outer cover; 2311 First opening; 2312 Second opening; 232 Tail cover; 233 Base; 234 Accommodation space; 240 Aviation plug; 250 Protective tube; 260 First fastener; 270 Second fastener. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0037] The following is combined with Figures 1 to 4 The mounting bracket and displacement sensor provided in this application will be described in detail through specific embodiments and application scenarios.

[0038] Reference Figures 1 to 3 As shown, an embodiment of this application provides a mounting bracket 100, the structure of which includes a base plate 110 and a vertical plate 120.

[0039] Reference Figure 2 and Figure 3Specifically, the base plate 110 has an end face 111. A vertical plate 120 is disposed on the end face 111, dividing the first end face 111 into two installation areas 113, left and right. The vertical plate 120 includes a partition column 121 and two support columns 122, which are respectively disposed opposite to each other on both sides of the end face 111. The two ends of the partition column 121 are respectively connected to the two support columns 122 to form a portal frame. The first end face 111 is provided with a first positioning groove 112 penetrating the base plate 110, and the first positioning groove 112 is located between the two support columns 122.

[0040] In the above embodiment, the mounting bracket 100 is used to assemble the core 210 of the displacement sensor 200. The core 210 includes a circuit board 211 and a sensing element 212. During actual installation, the circuit board 211 is disposed in one of the mounting areas 113 and is connected and fixed to the vertical plate 120; the sensing element 212 is disposed in the first positioning groove 112. The first positioning groove 112 guides and restricts the sensing element 212, providing a clear installation position, which not only facilitates assembly but also improves the accuracy and stability during installation. Furthermore, the area enclosed by the partition column 121 and the two support columns 122 forms a first clearance space 123 and a second clearance space 124 above the first positioning groove 112. The first clearance space 123 provides sufficient space for the wiring between the circuit board 211 and the sensing element 212, making the wiring between the circuit board 211 and the sensing element 212 smooth and neat, while the second clearance space 124 can provide space for the wiring between the circuit board 211 and other components, thereby avoiding unnecessary compression or pulling of the wiring.

[0041] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the mounting bracket 100 further includes a second positioning groove 130. The second positioning groove 130 is arranged around the periphery of the first positioning groove 112, i.e., circumferentially. In practical applications, an insulating pad 214 is provided between the sensitive element 212 and the predetermined installation position. This pad effectively isolates the electrical connection between the sensitive element 212 and the external environment, preventing potential electromagnetic interference, and also provides additional mechanical support, enhancing the stability of the sensitive element 212 during installation. Therefore, in the above embodiments, by designing the second positioning groove 130, an installation position is provided for the insulating pad 214, allowing the insulating pad 214 to be quickly and accurately installed in the predetermined position, thereby greatly simplifying the assembly process and improving assembly efficiency.

[0042] In some embodiments, the mounting bracket 100 further includes a mounting base 140. The mounting base 140 is disposed on both sides of the two support posts 122, respectively, facing the two mounting areas 113. The mounting base 140 is used for connection with the circuit board 211.

[0043] In the above embodiment, by designing the mounting base 140, a certain gap is made between the circuit board 211 and the vertical plate 120, which facilitates wiring and allows operators to check and adjust the wiring during assembly and maintenance, thereby reducing the equipment failure rate caused by wiring problems.

[0044] In practical applications, each support column 122 is equipped with four mounting bases 140. The four mounting bases 140 are divided into two groups of two and are respectively set on both sides of the support column 122. In this way, the circuit board 211 is connected through the four mounting bases 140, resulting in a more stable connection.

[0045] In some embodiments, the mounting base 140 is provided with positioning holes 141. The positioning holes 141 are provided so that when the circuit board is installed, the circuit board 211 can be precisely fixed on the mounting base 140 by the corresponding first fasteners 260 (positioning pins, bolts or self-tapping screws).

[0046] In practical applications, the first fastener 260 uses a self-tapping screw, which helps to save on mold opening costs.

[0047] In some embodiments, the support column 122 has a stepped surface 1211 on the side away from the base plate.

[0048] In some embodiments, the two mounting areas 113 are respectively provided with fixing through holes 1111. During actual installation, the base plate 110 and the base 233 are in contact. By designing the fixing through holes 1111, when the bracket 100 is installed, the mounting bracket 100 can be securely installed on the base 233 by the corresponding second fasteners 270 (positioning pins, bolts).

[0049] In the above embodiment, the fixing through hole 1111 is a countersunk hole. The countersunk hole structure allows the head of the second fastener 270 to be recessed into the hole, thereby avoiding protrusion from the surface of the base plate 110. This not only prevents the head of the second fastener 270 from interfering with other components, but also ensures the flatness of the surface of the mounting bracket 100, which is beneficial for the subsequent installation and layout of components.

[0050] In some embodiments, the mounting bracket 100 is made entirely of nylon, which can effectively mitigate the impact of external vibrations on the core 210. It is understood that this embodiment is not limited thereto, and in actual use, suitable materials such as ceramic, stainless steel, and aluminum alloy can be selected according to actual needs.

[0051] Reference Figures 1 to 3In some embodiments, this application also provides a displacement sensor 200, the structure of which includes a core 210, a measuring component 220 and a mounting bracket 100 provided in any of the above embodiments.

[0052] Specifically, the core 210 includes a circuit board 211 and a sensitive element 212. The circuit board 211 is connected to the vertical plate 120; the sensitive element 212 is disposed in the first positioning groove 112 and connected to the circuit board 211.

[0053] The measuring assembly 220 includes a measuring rod 221, a position sensing element 222, and a positioning magnetic ring 223. The measuring rod 221 is hollow inside; the position sensing element 222 is disposed inside the measuring rod 221 and connected to the sensing element 212; the positioning magnetic ring 223 is sleeved on the outer periphery of the measuring rod 221 and can move along the measuring rod 221.

[0054] In practical applications, when the positioning magnetic ring 223 moves on the measuring rod 221, the position sensing element 222 senses the position change of the positioning magnetic ring 223 and outputs a corresponding sensing signal; the sensing element 212 receives the sensing signal and converts it into an electrical signal, and the circuit board 211 processes the electrical signal and outputs it. This continuous non-contact measurement method, because there is no mechanical contact during the measurement process, avoids wear or accuracy degradation caused by mechanical friction, thus extending the service life of the displacement sensor 200.

[0055] In the above embodiment, since the area formed by the partition column 121 and the two support columns 122 together forms a first clearance space 123 above the first positioning groove 112, it provides sufficient space for the wiring between the circuit board 211 and the sensitive element 212, making the wiring between the circuit board 211 and the sensitive element 212 smooth and neat, avoiding unnecessary squeezing or pulling of the wiring.

[0056] In some embodiments, the sensing element 212 includes sensing components, identification components, amplification components, computing components, output circuitry, and a mechanical housing.

[0057] In some embodiments, the circuit board 211 is connected and fixed by the mounting base 140 and the corresponding first fastener 260 (locating pin, bolt or self-tapping screw).

[0058] In some embodiments, the displacement sensor 200 further includes an electronic housing 230. The core 210 and the mounting bracket 100 are both disposed within the electronic housing 230, the probe 221 is connected to the electronic housing 230, and the position sensing element 222 passes through the electronic housing 230 and is connected to the sensing element 212.

[0059] The core 210 is the core component of the displacement sensor 200, and its stability and accuracy are crucial to the overall performance of the displacement sensor. Therefore, in the above embodiment, the core 210 is housed in an electronic compartment 230. The electronic compartment 230 provides a closed space, which can effectively prevent external media (dust, moisture, etc.) from affecting the core 210, thereby protecting the core 210, ensuring the stability and accuracy of the displacement sensor 200, and helping to extend the service life of the displacement sensor 200.

[0060] In some embodiments, the electronic compartment 230 includes an outer cover 231, a tail cap 232, a base 233, and a receiving space 234. The outer cover 231 has a first opening 2311 and a second opening 2312 disposed opposite to each other, and the first opening 2311 and the second opening 2312 communicate with each other. The tail cap 232 is disposed at the first opening 2311 to close it. The base 233 is disposed at the second opening 2312 to close it. The base 233, the outer cover 231, and the tail cap 232 enclose the receiving space 234. The core 210 and the mounting bracket 100 are disposed within the receiving space 234. The base plate 110 contacts the base 233; the vertical plate 120 contacts the tail cap 232; and the measuring rod 221 is disposed on the side of the base 233 away from the tail cap 232.

[0061] In the above embodiment, the base 233 and the base plate 110 are connected and fixed through the fixing through hole 1111 and the corresponding second fastener 270. The top surfaces of the tail cap 232 and the support column 122 are in contact. An insulating pad 214 is provided between the sensitive element 212 and the base 233, and the insulating pad 214 is connected and fixed to the base plate 110 through the second positioning groove 130 and the corresponding fastener.

[0062] Specifically, the base plate 110 is provided with a plurality of process fixing holes 114, which serve as the mounting base for fasteners. The plurality of process fixing holes 114 are spaced apart along the periphery of the first positioning groove 112.

[0063] In some embodiments, the measuring assembly 220 further includes an end cap 224. The end cap 224 is disposed on the side of the measuring rod 221 away from the base 233 to close the measuring rod 221.

[0064] In the above embodiment, the measuring rod 221 and the end cap 224 form a complete and sealed structure, which can prevent external media from entering the interior of the measuring rod 221 and affecting the position sensing element 222, thereby helping to improve the reliability and service life of the entire displacement sensor 200.

[0065] In practical applications, the end cap 224 and the measuring rod 221 are welded together. The measuring rod 221 and the base 233 are welded together.

[0066] In some embodiments, a fluorine tube is fitted inside the measuring rod 221, and the position sensing element 222 is disposed inside the fluorine tube. The fluorine tube has excellent insulation properties, which helps to reduce the influence of electromagnetic interference on the position sensing element 222, thereby improving the accuracy and stability of the measurement.

[0067] In some embodiments, the measuring component 220 further includes a non-magnetic pad 225; the non-magnetic pad 225 is disposed on the side of the positioning magnetic ring 223 away from the base 233.

[0068] During actual installation, the material, shape, and position of the components may potentially affect the magnetism of the positioning magnetic ring 223. The introduction of the non-magnetic pad 225, however, acts as an isolation layer during the installation of the positioning magnetic ring 223, preventing direct contact between the components and the positioning magnetic ring 223 and thus ensuring that the magnetism of the positioning magnetic ring 223 does not change due to contact with the components, thereby guaranteeing the measurement accuracy of the displacement sensor 200.

[0069] In some embodiments, the core 210 further includes a filter board 213, which is responsible for processing the level signal and outputting the displacement signal of the positioning magnetic ring 223, thereby helping to improve the measurement accuracy and stability of the displacement sensor 200.

[0070] Specifically, the filter board 213 is connected to the vertical plate 120 and is disposed opposite to the circuit board 211 on both sides of the vertical plate 120.

[0071] In practical applications, the filter board 213 is connected and fixed by the mounting base 140 set on the vertical plate 120 and the corresponding first fastener 260.

[0072] In some embodiments, a flight plug 240 is also included. The flight plug 240 passes through the tail cover 232 and is connected to the filter plate 213.

[0073] The aviation connector 240, also known as an aviation plug, is a highly reliable and easy-to-connect electrical connector. It typically features vibration resistance, shock resistance, and waterproof / dustproof properties, making it ideal for use in harsh environments. In the above embodiment, the aviation connector 240 connects the filter board 213 to the external device. As a signal transmission channel, the aviation connector 240 ensures that the clean signal processed by the filter board 213 is stably transmitted to the external device. This connection method is not only stable and reliable, but also facilitates maintenance and replacement, and helps improve the measurement accuracy and stability of the displacement sensor 200.

[0074] In practical applications, the area enclosed by the partition column 121 and the two support columns 122 forms a second clearance space 124 above the partition column 121, providing sufficient space for the routing of the aviation connector 240 and the filter board 213.

[0075] In some embodiments, the displacement sensor 200 further includes a protective tube 250. The protective tube 250 is sleeved on the outside of the position sensing element 222, and one end is connected to the sensing element 212.

[0076] In the above embodiment, the protective tube 250 provides additional protection for the connection between the sensitive element 212 and the position sensing element 222, thereby helping to extend the service life of the displacement sensor 200 and ensuring its measurement accuracy and stability.

[0077] It should be clarified that in the claims, description, and accompanying drawings of this application, the term "multiple" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description process, not to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood based on the specific circumstances of the above data.

[0078] In the claims, description, and accompanying drawings of this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In the claims, description, and accompanying drawings of this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mounting bracket, characterized in that, The mounting bracket is used to assemble the core of the displacement sensor, the core including a circuit board and a sensing element; the mounting bracket includes: The base plate includes an end face and a first positioning groove; the first positioning groove is disposed on the end face and extends through the base plate; the first positioning groove is used to assemble the sensitive element. A vertical plate is disposed on the end face and divides the end face into two mounting areas for assembling the circuit board; The vertical plate includes a partition column and two support columns; the two support columns are respectively disposed opposite to each other on both sides of the end face; the two ends of the partition column are respectively connected to the two support columns; The first positioning groove is located between the two support columns.

2. The mounting bracket according to claim 1, characterized in that, The mounting bracket further includes a second positioning groove; the second positioning groove is arranged around the periphery of the first positioning groove.

3. The mounting bracket according to claim 1, characterized in that, The mounting bracket also includes a mounting base; the mounting base is disposed on both sides of the support column facing the two mounting areas respectively.

4. The mounting bracket according to claim 3, characterized in that, The mounting base is provided with positioning holes.

5. The mounting bracket according to any one of claims 1 to 4, characterized in that, Each of the two installation areas is provided with a fixing through hole.

6. A displacement sensor, characterized in that, Includes a core, a measuring assembly, and a mounting bracket as described in any one of claims 1 to 5; The core includes a circuit board and a sensitive element; the circuit board is disposed in one of the two mounting areas and connected to the vertical plate; the sensitive element is disposed in the first positioning groove. The measuring assembly includes a measuring rod, a position sensing element, and a positioning magnetic ring; the measuring rod is hollow inside; the position sensing element is disposed inside the measuring rod and connected to the sensing element; the positioning magnetic ring is sleeved on the outer periphery of the measuring rod and can move along the measuring rod.

7. The displacement sensor according to claim 6, characterized in that, The displacement sensor further includes an electronic housing; wherein the core and the mounting bracket are disposed within the electronic housing; the measuring rod is connected to the electronic housing.

8. The displacement sensor according to claim 7, characterized in that, The electronic warehouse includes: The outer cover has a first opening and a second opening disposed opposite to each other, the first opening and the second opening communicating with each other; A tail cap is provided at the first opening; The base is located at the second opening; The base, the outer cover, and the tail cap together form an accommodating space; The core and the mounting bracket are disposed within the accommodating space, and the base plate and the base are in contact, while the vertical plate and the tail cover are in contact; the measuring rod is disposed on the side of the base away from the tail cover.

9. The displacement sensor according to claim 8, characterized in that, The core also includes a filter board, which is connected to the vertical plate and is disposed opposite to the circuit board on both sides of the vertical plate.

10. The displacement sensor according to claim 9, characterized in that, It also includes a flight plug; the flight plug passes through the tail cover and is connected to the filter plate.

Images