MEMS inclinometer

Abstract

The utility model discloses a micro-electromechanical system (MEMS) inclinometer in the field of inclinometers, which aims to solve the problem of inaccurate detection in the prior art and comprises an electronic bin and a guide rod which are detachably connected. An MEMS micro-electro-mechanical system is arranged in the electronic bin, the MEMS micro-electro-mechanical system comprises a first pcb and a second pcb, the first pcb is used for obtaining an inclination angle signal of a detection point, the second pcb is used for processing and transmitting the signal, the first pcb is parallel to the bottom of the electronic bin, and the second pcb is parallel to the bottom of the electronic bin. The electronic bin and the guide rod are detachably connected, when one end of the electronic bin and the guide rod are scrapped, the electronic bin and the guide rod can be replaced, cost is reduced, the MEMS is composed of the first pcb and the second pcb, the first pcb is used for obtaining inclination angle signals of a detection point and is parallel to the bottom of the electronic bin, the second pcb is used for obtaining inclination angle signals of the detection point, and the second pcb is used for obtaining inclination angle signals of the detection point and is parallel to the bottom of the electronic bin. And omnibearing detection can be carried out on a detection point.

Description

Technical Field

[0001] The utility model relates to the field of inclinometers, in particular to a MEMS inclinometer. Background Art

[0002] The inclinometer is a digital display, mobile inclinometer that uses an electrical horizontal inclinometer as its sensitive element. It can be used to observe horizontal changes within soil masses such as earth-rock dams, embankments, rock slopes, building foundation pits, and underground construction projects. It is an essential precision monitoring instrument for projects such as railways, ports, water conservancy projects, and high-rise buildings.

[0003] Most existing inclinometers are integrated structures in which a sensor and a guide rod are fixed together. When one end fails, the entire structure needs to be replaced.

[0004] To ensure a small diameter, the existing inclinometer has a MEMS PCB (microelectromechanical system) installed vertically inside the inclinometer. However, with this arrangement, the sensor pair inside the PCB can only detect the horizontal plane of the detection point in one direction, while the other direction is perpendicular to the horizontal plane of the detection point. When the orientation of the detection point needs to be detected, the inclinometer rod needs to be rotated, resulting in inconvenient operation and inaccurate detection. Utility Model Content

[0005] The purpose of the utility model is to provide a MEMS inclinometer, in which the core sensing element is placed parallel to the bottom of the electronic compartment, and detection can be performed in the entire horizontal plane direction of the detection point.

[0006] In order to solve the above technical problems, the following technical solutions are adopted:

[0007] The utility model provides a MEMS inclinometer, comprising an electronic chamber and a guide rod, wherein the electronic chamber and the guide rod are detachably connected;

[0008] A MEMS micro-electromechanical system is provided inside the electronic warehouse, and the MEMS micro-electromechanical system includes a first PCB board and a second PCB board. The first PCB board is used to obtain the tilt angle signal of the detection point, and the second PCB board is used to process and transmit the signal. The first PCB board is parallel to the bottom of the electronic warehouse, and the second PCB board is perpendicular to the first PCB board and is arranged on the first PCB board.

[0009] Optionally, the first PCB is provided with a sensor element for detection, and the second PCB is provided with a signal processing circuit for processing detected signals, a communication module for communicating with other devices, and a power supply module for power supply.

[0010] Optionally, the electronic compartment further includes a core seat and a shell, the first PCB board is arranged in the core seat, the core seat is cooperatively connected to one end of the shell, and a wire outlet hole is provided on the other end of the shell.

[0011] Optionally, a mounting hole is provided on one end of the electronic warehouse connected to the guide rod, and a mounting cone is provided on one end of the guide rod connected to the electronic warehouse. The mounting cone can be placed in the mounting hole to achieve a detachable connection between the electronic warehouse and the guide rod.

[0012] Optionally, a tenon is provided on a side of the mounting hole, and a mortise is provided on a side of the mounting cone surface, and the tenon and the mortise are capable of fitting and contacting.

[0013] Optionally, a plurality of fastening screw holes penetrating into the mounting hole are provided on an outer wall of the electronic compartment close to an end connected to the guide rod, and fastening bolts are provided in the fastening screw holes.

[0014] Optionally, a slot is provided on the guide rod, and a pulley is provided in the slot.

[0015] Optionally, two slots are provided on the guide rod at intervals in the upper and lower parts, and two pulleys are provided in the slots.

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

[0017] 1. The electronic bin and the guide rod of the utility model are detachably connected. When one end is scrapped, it can be replaced to reduce costs. The MEMS micro-electromechanical system consists of a first PCB board and a second PCB board. The first PCB is used to obtain the tilt angle signal of the detection point and is parallel to the bottom of the electronic bin, which can perform all-round detection of the detection point.

[0018] 2. The utility model arranges the core sensor element of the MEMS micro-electromechanical system on the first PCB board and other auxiliary components on the second PCB board, thereby ensuring the complete functions. The first PCB board is only provided with the core sensor element, which will not increase the diameter of the electronic compartment too much and affect the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the MEMS inclinometer in an embodiment of the present utility model;

[0020] Figure 2 It is a partial structural diagram of the MEMS inclinometer in the embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the electronic compartment split structure in an embodiment of the present utility model;

[0022] Figure 4This is a schematic diagram of the detection direction of the first PCB board in the embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the top view of the mounting cone in an embodiment of the present utility model;

[0024] Figure 6 This is a schematic side view of the core seat structure in an embodiment of the present utility model;

[0025] Figure 7 It is a schematic diagram of the top view of the core seat in the embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Electronic compartment; 101. Core seat; 102. Housing; 103. First PCB; 104. Second PCB; 105. Mounting hole; 106. Tenon; 107. Fastening screw hole; 108. Wire outlet hole; 2. Guide rod; 201. Slotted hole; 202. Pulley; 203. Mounting cone; 204. Mortise. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Example 1

[0029] like Figure 1-3 As shown, this embodiment provides a MEMS inclinometer, comprising an electronic chamber 1 and a guide rod 2, wherein the electronic chamber 1 and the guide rod 2 are detachably connected;

[0030] A MEMS micro-electromechanical system is provided inside the electronic warehouse 1, and the MEMS micro-electromechanical system includes a first PCB board 103 and a second PCB board 104. The first PCB board 103 is used to obtain the tilt angle signal of the detection point, and the second PCB board 104 is used to process and transmit the signal. The first PCB board 103 is parallel to the bottom of the electronic warehouse 1, and the second PCB board 104 is perpendicular to the first PCB board 103 and is arranged on the first PCB board 103.

[0031] like Figure 4As shown, first PCB 103 is parallel to the bottom of electronics compartment 1. After electronics compartment 1 enters the detection channel, detection of a detection point is performed in both the X and Y directions, achieving precise measurement of the tilt of the detection horizontal plane. This solves the problem of incomplete detection in the prior art of component boards arranged parallel to the electronics compartment housing. Component boards arranged parallel to the electronics compartment housing have a Y direction perpendicular to the plane of the detection point, making it impossible to fully detect the detection point in front of, behind, and around.

[0032] The core sensing element is set on the first PCB board 103, and the other components are set on the second PCB. The second PCB board 104 is parallel to the shell of the electronic warehouse 1. The setting position has no effect on the detection accuracy. There are not many components set on the first PCB board 103, and it only needs to be slightly larger than the diameter of the existing electronic warehouse 1, which will not affect the use of the inclinometer rod. Example 2

[0033] This embodiment provides a MEMS inclinometer based on Example 1. This embodiment differs from Example 1 in that a sensor element is provided on a first PCB 103, and a signal processing circuit, a communication module, and a power supply module are provided on a second PCB 104. The first PCB 103 and the second PCB 104 are combined to form a MEMS micro-electromechanical system to achieve pipeline detection.

[0034] The electronic warehouse 1 includes an external core seat 101 and an outer shell 102, as well as an internal first PCB board 103 and a second PCB board 104. The core seat 101 is used to place the first PCB board 103, and the second PCB board 104 is vertically installed on the first PCB board 103. The outer shell 102 is threadedly connected to the core seat 101, and a wire outlet hole 108 is provided on the end of the outer shell 102 away from the core seat 101. The wire outlet hole 108 is used to pass the connecting cables inside the electronic warehouse 1.

[0035] A mounting hole 105 for connecting to the guide rod 2 is provided at the bottom of the core seat 101, and a mounting cone 203 for cooperating with the mounting hole 105 is provided on the guide rod 2. The mounting cone 203 cooperates with the mounting hole 105 to realize a detachable connection between the guide rod 2 and the electronic warehouse 1. When the electronic warehouse 1 is scrapped, it can be replaced with an electronic warehouse 1 of the same specification and continued to be used. When the guide rod 2 is scrapped, it can be replaced with a guide rod 2 of the same specification and continued to be used, saving costs.

[0036] like Figure 5-Figure 7As shown, one end of the core seat 101 is used to prevent the hole position of the first PCB board, and the other end is provided with a mounting hole 105 connected to the conduit, and a fastening screw hole 107 is provided on the side wall of the core seat 101 and penetrates into the mounting hole 105. A plurality of fastening screw holes are evenly spaced on the side wall of the core seat. By arranging a fastening bolt in the fastening screw hole 107, one end of the fastening bolt rests on the mounting cone 203 on the guide rod in the mounting hole 105, thereby achieving a stable connection between the guide rod and the electronic compartment.

[0037] Tenons 106 are provided on the two diagonal sides of the mounting hole 105 of the core seat 101, and mortises 204 are provided on the two diagonal sides of the mounting cone 203 of the guide rod 2. When the mounting cone 203 is installed into the mounting hole 105, the tenon 106 and the mortise are in contact and fit. The contact and fit between the tenon 106 and the mortise 204 restricts the rotation of the core seat 101 and the guide rod 2, which can be used for positioning the electronic compartment 1 and the guide rod 2 during installation, and is more convenient and quick to install.

[0038] like Figure 1 As shown, two slots 201 are provided on the guide rod 2, which pass through the guide rod 2 to the left and right. A connecting rod for mounting pulleys is provided in the slot 201. A pulley 202 is provided at each end of the connecting rod. The connecting rod can rotate around the connection to adjust the angle between the two pulleys 202 at both ends and the guide rod 2, so as to make the guide rod 2 contact with the inner wall of the conduit when it is extended into the pipeline, so as to slowly descend.

[0039] When in use, the inclinometer catheter is installed on the hole to be measured, and the direction of the pulley 202 on the guide rod 2 is adjusted so that it contacts the inner wall of the inclinometer catheter after the guide rod 2 is inserted into the inclinometer catheter. The guide rod 2 is slowly lowered, and the electronic chamber 1 enters the inclinometer catheter to perform detection in the hole. The measured data is transmitted to the device through the cable at the other end of the electronic chamber 1 for calculation to obtain the detection result.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

Claims

1. A MEMS inclinometer, characterized in that: It includes an electronic compartment and a guide rod, wherein the electronic compartment and the guide rod are detachably connected; A MEMS micro-electromechanical system is provided inside the electronic warehouse, and the MEMS micro-electromechanical system includes a first PCB board and a second PCB board. The first PCB board is used to obtain the tilt angle signal of the detection point, and the second PCB board is used to process and transmit the signal. The first PCB board is parallel to the bottom of the electronic warehouse, and the second PCB board is perpendicular to the first PCB board and is arranged on the first PCB board.

2. The MEMS inclinometer according to claim 1, wherein: The first PCB is provided with a sensor element for detection, and the second PCB is provided with a signal processing circuit for processing detected signals, a communication module for communicating with other devices, and a power supply module for power supply.

3. The MEMS inclinometer according to claim 1, wherein: The electronic compartment further comprises a core seat and a shell. The first PCB board is arranged in the core seat. The core seat is cooperatively connected with one end of the shell. The other end of the shell is provided with a wire outlet hole.

4. The MEMS inclinometer according to claim 1, wherein: A mounting hole is provided on one end of the electronic compartment connected to the guide rod, and a mounting cone is provided on one end of the guide rod connected to the electronic compartment. The mounting cone can be placed in the mounting hole to achieve a detachable connection between the electronic compartment and the guide rod.

5. The MEMS inclinometer according to claim 4, characterized in that: A tenon is provided on the side of the mounting hole, and a mortise is provided on the side of the mounting cone surface, and the tenon and the mortise can be in contact with each other.

6. The MEMS inclinometer according to claim 5, characterized in that: A plurality of fastening screw holes penetrating into the mounting hole are provided on the outer wall of the electronic compartment close to the end connected to the guide rod, and fastening bolts are provided in the fastening screw holes.

7. The MEMS inclinometer according to claim 1, wherein: A slot is provided on the guide rod, and a pulley is provided in the slot.

8. The MEMS inclinometer according to claim 7, wherein: Two slots are provided on the guide rod at intervals in the upper and lower parts, and two pulleys are provided in the slots.

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