Sensor module shaft parallel adjustment device and adjustment method

Through the sensor module shaft parallel adjustment device and method, the problem of large error in measuring shaft parallelism in mine magnetic fuze is solved, and high-precision coordinate conversion of ship target magnetic field signal is achieved.

CN115808106BActive Publication Date: 2025-09-19YICHANG TESTING TECHNIQUE RESEARCH INSTITUTE
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Patent Information

Application Number
CN202211356705.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-01
Publication Date
2025-09-19
Estimated Expiration
2042-11-01

AI Technical Summary

Technical Problem

In the existing technology, the parallelism error of the measurement axis system between the three-axis magnetic vector sensor and the two-axis or three-axis acceleration sensor of the mine magnetic fuze is large, resulting in insufficient accuracy in the coordinate conversion of the ship target magnetic field signal.

Method used

A sensor module axis parallel adjustment device is used, including an adjustment base, a magnetic fuze sensor mounting plate and a rotary adjustment screw. By performing precise rotary adjustment on a non-magnetic water platform, the parallel alignment of the measurement axes of the magnetic vector sensor and the acceleration sensor is achieved.

Benefits of technology

The parallelism error of the measuring axis system is reduced from 2° to 5° to within 0.2°, and the coordinate conversion accuracy of the mine magnetic fuse to the ship target magnetic field signal is improved.

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Abstract

The present invention discloses a sensor module shaft parallel adjustment device and adjustment method. The device includes an adjustment base, a magnetic fuze sensor mounting plate, a mounting plate fastening screw, a mounting plate left-hand adjustment screw, and a mounting plate right-hand adjustment screw. The adjustment base has a circular opening on its upper surface, and each of the remaining surfaces has a square opening at its center. The adjustment base has a cavity matching the opening inside. The magnetic fuze sensor mounting plate is mounted on the upper surface of the adjustment base via the mounting plate fastening screw. Mounting plate rotation adjustment screws are provided above and below the outer sides of the opening on the upper surface of the adjustment base. The left-hand adjustment screw on the upper mounting plate can rotate the magnetic fuze sensor mounting plate to the left, while the right-hand adjustment screw on the lower mounting plate can rotate the magnetic fuze sensor mounting plate to the right. The present invention improves the parallel accuracy of the shaft system, reducing the 2° to 5° parallelism error that exists in mechanical installation in the prior art to within 0.2°.
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Description

Technical Field

[0001] The present invention relates to the technical field of sensor shaft system adjustment, and in particular to a sensor module shaft system parallel adjustment device and adjustment method. Background Art

[0002] The mine magnetic fuze sensor includes a three-axis magnetic vector sensor and a two-axis (or three-axis) acceleration sensor. The mine magnetic fuze uses the three-axis magnetic vector sensor to perform three-axis orthogonal measurements of the ship target's magnetic field signal, obtaining information about the ship target's passage characteristics and making attack decisions. After a mine is deployed underwater, its attitude is generally uncontrolled. The ship target magnetic field signal acquired by the mine magnetic fuze is data in the carrier coordinate system, which presents difficulties in processing and utilization. Therefore, it is necessary to use an attitude sensor to obtain the mine attitude and perform coordinate conversion on the carrier coordinate system to accurately measure the ship target's magnetic field signal in the earth coordinate system. A two-axis (or three-axis) acceleration sensor serves as the attitude sensor for the mine magnetic fuze; the mine magnetic fuze uses the two-axis (or three-axis) acceleration sensor to measure the mine attitude and perform coordinate conversion.

[0003] To accurately transform the coordinates of the magnetic field signals of ship targets, specifically the measurement data from the carrier coordinate system to the Earth coordinate system, a mine magnetic fuze must accurately transform the coordinates of the ship target's magnetic field signals. This requires ideal orthogonality of the measurement axes of the three-axis magnetic vector sensor, ideal orthogonality of the measurement axes of the two-axis (or three-axis) acceleration sensor, and parallel adjustment of the measurement axes of the two sensors. The three-axis magnetic vector sensor used in the mine magnetic fuze achieves ideal orthogonality of the measurement axes through mechanical adjustment and digital correction; the micromechanical acceleration sensor used in the mine magnetic fuze has a high degree of orthogonality of the measurement axes. However, the parallelism of the three-axis coordinate systems of the magnetic vector sensor and the two-axis (or three-axis) acceleration sensor cannot be adjusted or corrected. Existing technology generally achieves this through mechanical installation and rough alignment, resulting in a large parallelism error (2° to 5°). This introduces significant deviations into the coordinate transformation of the ship target magnetic field signals performed by the mine magnetic fuze.

[0004] Therefore, it is necessary to invent a sensor module axis parallel adjustment device and adjustment method to parallelize the three-axis magnetic vector sensor measurement axis coordinate system and the two-axis (or three-axis) acceleration sensor measurement axis coordinate system, eliminate the non-parallelism between the measurement axis coordinate systems, and improve the coordinate conversion accuracy of the mine magnetic fuse to the ship target magnetic field signal. Summary of the Invention

[0005] In view of this, the present invention provides a sensor module axis parallel adjustment device and adjustment method, which can solve the technical problem of how to parallel adjust the measurement axis coordinate systems of the magnetic vector sensor and the acceleration sensor.

[0006] In order to solve the above technical problems, the present invention is implemented as follows.

[0007] A sensor module shaft parallel adjustment device, the adjustment device comprising an adjustment base, a magnetic fuze sensor mounting plate, a mounting plate fastening screw, a mounting plate left-hand adjustment screw, and a mounting plate right-hand adjustment screw;

[0008] The upper surface of the adjustment base is provided with a circular opening, and the other surfaces are provided with a square opening at the center thereof; the interior of the adjustment base is provided with a cavity matching the opening;

[0009] The upper surface of the adjustment base is mounted with a magnetic fuze sensor mounting plate via mounting plate fastening screws;

[0010] Mounting plate rotation adjustment screws are arranged on the upper and lower outsides of the opening on the upper surface of the adjustment base. The magnetic fuze sensor mounting plate can be rotated to the left by rotating the upper mounting plate to the left, and the magnetic fuze sensor mounting plate can be rotated to the right by rotating the lower mounting plate to the right.

[0011] Preferably, the adjustment base is a cubic box, with each surface perpendicular to each other and a verticality accuracy of less than 0.2°; a circular opening is formed on the upper surface of the adjustment base, and square openings are formed at the center of each of the other surfaces; a cavity is formed inside the adjustment base to match the opening; a magnetic fuze sensor mounting plate is mounted on the upper surface of the adjustment base via mounting plate fastening screws;

[0012] The magnetic fuze sensor mounting plate is annular, with waist-shaped holes on the left and right sides for fastening the magnetic fuze sensor mounting plate to the outer sides of the circular opening on the upper surface of the adjustment base, and allowing the magnetic fuze sensor mounting plate to rotate left and right with the center of the upper surface of the adjustment base as the origin; the magnetic fuze sensor mounting plate has four mounting holes on the inner side for mounting the magnetic fuze sensor;

[0013] Mounting plate rotation adjustment screws are arranged above and below the outside of the opening on the upper surface of the adjustment base. The magnetic fuze sensor mounting plate can be rotated to the left by rotating the upper mounting plate with the left-hand adjustment screw, and the magnetic fuze sensor mounting plate can be rotated to the right by rotating the lower mounting plate with the right-hand adjustment screw; the magnetic fuze sensor is installed in the cavity of the adjustment base through the magnetic fuze sensor mounting plate, the magnetic vector sensor of the magnetic fuze sensor is located above the opening, and the acceleration sensor of the magnetic fuze sensor is located inside the opening.

[0014] Preferably, the adjustment base and the magnetic fuze sensor mounting plate respectively have a base hole and a mounting plate hole corresponding to the opening, and the magnetic fuze sensor is placed in the cavity through the mounting plate hole and the base hole.

[0015] Preferably, the adjustment base is a cubic box with an edge length of 90 mm, a circular opening with a diameter of 58 mm is opened on the upper surface of the adjustment base, and a square opening with a side length of 68 mm is opened in the center of the other surfaces.

[0016] Preferably, the acceleration sensor is a two-axis or three-axis acceleration sensor.

[0017] The present invention provides a sensor module shaft parallel adjustment method, based on the sensor module shaft parallel adjustment device described above, the adjustment method includes:

[0018] Follow these steps:

[0019] Step S1: placing the sensor module shaft parallel adjustment device on a non-magnetic water platform, and installing the magnetic fuze sensor into the sensor module shaft parallel adjustment device;

[0020] The coordinate system of the sensor module axis parallel adjustment device is recorded as X'Y'Z'; on the non-magnetic water platform, the coordinate system of the sensor module axis parallel adjustment device is aligned with the northeast celestial coordinate system; with the center of the adjustment device as the origin, the horizontal east is the O'X' axis, the horizontal north is the O'Y' axis, and the vertical sky is the O'Z' axis;

[0021] The magnetic vector sensor measurement axis coordinate system of the magnetic fuze sensor is recorded as XYZ; on a non-magnetic water platform, the magnetic vector sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal eastward axis being the OX axis, the horizontal northward axis being the OY axis, and the vertical skyward axis being the OZ axis;

[0022] The acceleration sensor measurement axis coordinate system of the magnetic fuze sensor is denoted as ABC. On a non-magnetic water platform, the acceleration sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal eastward axis being the OA axis, the horizontal northward axis being the OB axis, and the vertical skyward axis being the OC axis.

[0023] After the magnetic fuze sensor is installed in the sensor module axis parallel adjustment device and placed on a non-magnetic water platform to be aligned with the northeast celestial coordinate system, the deviation between the magnetic vector sensor measurement axis coordinate system, the acceleration sensor measurement axis coordinate system, and the sensor module axis parallel adjustment device coordinate system is less than 5°; the output data of the acceleration sensor at this time is used as the horizontal output zero point of the acceleration sensor; the acceleration sensor measurement axis coordinate system plane AOB is parallel to the sensor module axis parallel adjustment device coordinate system plane X'O'Y' through the non-magnetic water platform surface;

[0024] Step S2: Rotate the sensor module axis parallel adjustment device along the O'Y' axis within a range of plus or minus 60 degrees on the non-magnetic horizontal surface, and adjust the magnetic fuze sensor mounting plate left and right by rotating the adjustment screw until the output of the acceleration sensor measuring axis B remains unchanged; the adjustment screw is a left-hand adjustment screw and / or a right-hand adjustment screw for the mounting plate;

[0025] Step S3: Orienting the measuring axis OZ of the magnetic vector sensor vertically upward, rotating the sensor module axis parallel adjustment device along the O'Z' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal surface, and adjusting the vertical adjustment screw of the OZ axis of the magnetic vector sensor forward and backward until the output of the measuring axis OZ of the magnetic vector sensor does not change;

[0026] Step S4: Orienting the measuring axis OX of the magnetic vector sensor vertically downward, rotating the sensor module axis parallel adjustment device along the O'X' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal surface, and adjusting the vertical adjustment screw of the magnetic vector sensor OX axis forward and backward until the output of the magnetic vector sensor measuring axis OX does not change;

[0027] Step S5: Orient the measuring axis OY of the magnetic vector sensor vertically upward, rotate the sensor module axis parallel adjustment device along the O'Y' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal platform, and adjust the vertical adjustment screw of the magnetic vector sensor OY axis forward and backward until the output of the measuring axis OY of the magnetic vector sensor does not change.

[0028] Beneficial effects:

[0029] (1) The present invention improves the parallelism accuracy of the shaft system and reduces the parallelism error of 2° to 5° existing in the prior art through mechanical installation to within 0.2°.

[0030] (2) The device of the present invention has a simple structure.

[0031] (3) The calibration method of the present invention is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1(A) is a front view of the shaft parallel adjustment device provided by the present invention;

[0033] FIG1(B) is a top view of the shaft parallel adjustment device provided by the present invention;

[0034] FIG2(A) is a front view of the X'O'Y' plane of the device for adjusting the parallelism of the acceleration sensor AOB plane provided by the present invention;

[0035] FIG2(B) is a top view of the X'O'Y' plane of the device for adjusting the parallelism of the acceleration sensor AOB plane provided by the present invention;

[0036] FIG3(A) is a front view of the X'O'Y' coordinate system of the device for adjusting the alignment of the acceleration sensor AOB coordinate system provided by the present invention;

[0037] FIG3(B) is a top view of the X'O'Y' coordinate system of the device for adjusting the alignment of the acceleration sensor AOB coordinate system provided by the present invention;

[0038] FIG4(A) is a front view of the O'Z' axis of the adjustment device for adjusting the vertical upward alignment of the OZ axis of the magnetic vector sensor provided by the present invention;

[0039] FIG4(B) is a front view of the O'Z' axis of the adjusting device for adjusting the vertical upward alignment of the OZ axis of the magnetic vector sensor provided by the present invention;

[0040] FIG5(A) is a front view of the O'X' axis of the adjusting device for adjusting the vertical downward alignment of the OX axis of the magnetic vector sensor provided by the present invention;

[0041] FIG5(B) is a top view of the O'X' axis of the adjustment device for adjusting the OX axis of the magnetic vector sensor to align vertically downwards provided by the present invention;

[0042] FIG6(A) is a front view of the O'Y' axis of the adjustment device for adjusting the vertical upward alignment of the OY axis of the magnetic vector sensor provided by the present invention;

[0043] FIG6(B) is a top view of the O'Y' axis of the adjustment device for adjusting the vertical upward alignment of the OY axis of the magnetic vector sensor provided by the present invention. DETAILED DESCRIPTION

[0044] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0045] like Figure 1(A)-Figure 1(B) As shown, the present invention proposes a sensor module shaft parallel adjustment device, which includes an adjustment base, a magnetic fuse sensor mounting plate, a mounting plate fastening screw, a mounting plate left-hand adjustment screw, and a mounting plate right-hand adjustment screw.

[0046] The upper surface of the adjustment base is provided with a circular opening, and the other surfaces are provided with a square opening at the center thereof; the interior of the adjustment base is provided with a cavity matching the opening;

[0047] The upper surface of the adjustment base is mounted with a magnetic fuze sensor mounting plate via mounting plate fastening screws;

[0048] Mounting plate rotation adjustment screws are arranged on the upper and lower outsides of the opening on the upper surface of the adjustment base. The magnetic fuze sensor mounting plate can be rotated to the left by rotating the upper mounting plate to the left, and the magnetic fuze sensor mounting plate can be rotated to the right by rotating the lower mounting plate to the right.

[0049] Furthermore, the adjustable base is a cubic box, with each face perpendicular to the other, and a perpendicularity accuracy of less than 0.2°. A circular opening is defined on the upper surface of the adjustable base, and square openings are defined at the center of each face. The adjustable base has a cavity within it that matches the opening. A magnetic fuze sensor mounting plate is mounted on the upper surface of the adjustable base via mounting plate fastening screws. The magnetic fuze sensor mounting plate is annular, with waist-shaped holes on its left and right sides for fastening the plate to the outer sides of the circular opening on the upper surface of the adjustable base, allowing it to rotate left and right about the center of the upper surface of the adjustable base. The inner side of the magnetic fuze sensor mounting plate has four mounting holes for mounting a magnetic fuze sensor. Mounting plate rotation adjustment screws are located above and below the outer sides of the opening on the upper surface of the adjustable base. The upper mounting plate rotation adjustment screw allows the magnetic fuze sensor mounting plate to rotate leftward, while the lower mounting plate rotation adjustment screw allows the magnetic fuze sensor mounting plate to rotate rightward. The magnetic fuze sensor is installed in the cavity of the adjustment base through the magnetic fuze sensor installation plate. The magnetic vector sensor of the magnetic fuze sensor is located above the opening, and the acceleration sensor of the magnetic fuze sensor is located inside the opening.

[0050] The adjustment base is used to provide an orthogonal plane. The magnetic fuze sensor mounting plate is installed on the adjustment base. The magnetic fuze sensor mounting plate is used to install the magnetic fuze sensor and realize left and right rotation with the center of the upper surface of the adjustment base as the origin.

[0051] Furthermore, the adjustment base and the magnetic fuze sensor mounting plate respectively have a base hole and a mounting plate hole corresponding to the opening; the magnetic fuze sensor is placed in the cavity through the mounting plate hole and the base hole; the acceleration sensor of the magnetic fuze sensor is located in the cavity; and the magnetic vector sensor is located outside the adjustment device; the adjustment screw is used for left and right rotation adjustment of the magnetic fuze sensor mounting plate; the fastening screw is used for fastening the magnetic fuze sensor mounting plate to the outside of the circular opening on the upper surface of the adjustment base; the magnetic fuze sensor includes a magnetic vector sensor and an acceleration sensor.

[0052] Furthermore, the adjustment base is a cubic box with an edge length of 90 mm. A circular opening with a diameter of 58 mm is opened on the upper surface of the adjustment base, and a square opening with a side length of 68 mm is opened in the center of the other surfaces.

[0053] Furthermore, the acceleration sensor is a two-axis / or three-axis acceleration sensor.

[0054] like Figure 2(A)-Figure 6(B) As shown, the present invention also provides a sensor module shaft parallel adjustment method, the adjustment method is based on the sensor module shaft parallel adjustment device as described above, and the adjustment method includes the following steps:

[0055] Step S1: Place the sensor module axis parallel adjustment device on a non-magnetic water platform and install the magnetic fuze sensor into the sensor module axis parallel adjustment device. The coordinate system of the sensor module axis parallel adjustment device is denoted as X'Y'Z'. On the non-magnetic water platform, the coordinate system of the sensor module axis parallel adjustment device is aligned with the northeast celestial coordinate system. With the center of the adjustment device as the origin, the horizontal direction to the east is the O'X' axis, the horizontal direction to the north is the O'Y' axis, and the vertical direction to the sky is the O'Z' axis. The coordinate system of the magnetic vector sensor measurement axis of the magnetic fuze sensor is denoted as XYZ. On the non-magnetic water platform, the magnetic vector sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal direction to the east as the OX axis, the horizontal direction to the north as the OY axis, and the vertical direction to the sky as the OZ axis. The coordinate system of the acceleration sensor measurement axis of the magnetic fuze sensor is denoted as ABC. On the non-magnetic water platform, the acceleration sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal direction to the east as the OA axis, the horizontal direction to the north as the OB axis, and the vertical direction to the sky as the OC axis. After the magnetic fuze sensor is installed in the sensor module axis parallel adjustment device and placed on a non-magnetic water platform and aligned with the northeast celestial coordinate system, the deviation of the magnetic vector sensor measurement axis coordinate system, the acceleration sensor measurement axis coordinate system and the sensor module axis parallel adjustment device coordinate system is less than 5°; the output data of the acceleration sensor at this time is used as the horizontal output zero point of the acceleration sensor; the acceleration sensor measurement axis coordinate system plane AOB is parallel to the sensor module axis parallel adjustment device coordinate system plane X'O'Y' through the non-magnetic water platform surface.

[0056] In the present invention, the characteristic that the horizontal component of gravity acceleration is 0 is utilized to realize parallelism between the acceleration sensor measurement axis coordinate plane (AOB) and the sensor module axis parallel adjustment device coordinate plane (X'O'Y') through a non-magnetic water table.

[0057] In the present invention, the horizontal output of the acceleration sensor recorded on the non-magnetic water platform is zero, ensuring that the acceleration measurement axes OA and OB are in the horizontal plane. The sensor module axis parallel adjustment device is located on the non-magnetic water platform, and the coordinate system plane (X'O'Y') of the sensor module axis parallel adjustment device is in the horizontal plane.

[0058] Step S2: Rotate the sensor module axis parallel adjustment device on the non-magnetic horizontal platform along the O'Y' axis within a range of plus or minus 60 degrees, and adjust the magnetic fuse sensor mounting plate left and right by rotating the adjustment screw until the output of the acceleration sensor measurement axis B does not change; the adjustment screw is a left-hand adjustment screw and / or a right-hand adjustment screw for the mounting plate.

[0059] The present invention utilizes the characteristic that the horizontal component of gravity acceleration is 0 to achieve alignment and parallelism between the acceleration sensor measurement axis coordinate system AOB and the coordinate system X'O'Y' of the sensor module axis parallel adjustment device.

[0060] In the present invention, if the acceleration sensor's measuring axis OB does not coincide with the coordinate axis O'Y' of the sensor module's axis system parallelism adjustment device, then when the sensor module's axis system parallelism adjustment device is rotated within a range of plus or minus 60 degrees along the O'Y' axis on a non-magnetic surface, the acceleration sensor's measuring axis OB will project onto the vertical component of gravitational acceleration, causing the output of measuring axis B to change. By adjusting the rotating magnetic fuse sensor mounting plate, the acceleration sensor's measuring axis OB is aligned with the coordinate axis O'Y' of the sensor module's axis system parallelism adjustment device. The acceleration sensor's measuring axis OB projects only onto the horizontal component of gravitational acceleration, which is zero. When the sensor module's axis system parallelism adjustment device is rotated within a range of plus or minus 60 degrees along the O'Y' axis on a non-magnetic surface, the output of measuring axis B remains unchanged.

[0061] Step S3: Make the measuring axis OZ of the magnetic vector sensor vertically upward, rotate the sensor module axis parallel adjustment device along the O'Z' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal platform, and adjust the vertical adjustment screw of the OZ axis of the magnetic vector sensor forward and backward until the output of the measuring axis OZ of the magnetic vector sensor does not change.

[0062] The present invention utilizes the constant characteristic of the vertical component of the geomagnetic field to achieve the parallelism between the measuring axis OZ of the three-axis magnetic vector sensor and the coordinate system O'Z' of the sensor module axis parallelism adjustment device.

[0063] Step S4: Direct the measuring axis OX of the magnetic vector sensor vertically downward, rotate the sensor module axis parallel adjustment device along the O'X' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal platform, and adjust the vertical adjustment screw of the magnetic vector sensor OX axis forward and backward until the output of the magnetic vector sensor measuring axis OX does not change.

[0064] The present invention utilizes the constant characteristic of the vertical component of the geomagnetic field to achieve parallelism between the measuring axis OX of the three-axis magnetic vector sensor and the coordinate system O'X' of the sensor module axis parallelism adjustment device.

[0065] Step S5: Orient the measuring axis OY of the magnetic vector sensor vertically upward, rotate the sensor module axis parallel adjustment device along the O'Y' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal platform, and adjust the vertical adjustment screw of the magnetic vector sensor OY axis forward and backward until the output of the measuring axis OY of the magnetic vector sensor does not change.

[0066] The present invention utilizes the constant characteristic of the vertical component of the geomagnetic field to achieve the parallelism between the measuring axis OY of the three-axis magnetic vector sensor and the coordinate system O'Y' of the sensor module axis parallelism adjustment device.

[0067] Through steps S1 and S2, the acceleration sensor measurement axis coordinate system (ABC) is aligned with the coordinate system (X'Y'Z') of the adjustment device using a non-magnetic water table surface and the sensor module axis parallel adjustment device. Through steps S3-S5, the three-axis magnetic vector sensor measurement axis coordinate system (XYZ) is aligned with the coordinate system (X'Y'Z') of the sensor module axis parallel adjustment device using a non-magnetic water table surface and the sensor module axis parallel adjustment device. Ultimately, the parallel alignment of the magnetic vector sensor and the acceleration sensor measurement axis is achieved, and the alignment accuracy can reach the accuracy of the inherent error of the sensor module axis parallel adjustment device, that is, the parallelism error of the sensor measurement axis is about 0.2°. In the present invention, the alignment accuracy is determined by the inherent accuracy of the sensor module axis parallel adjustment device.

[0068] The device and method for parallel adjustment of the magnetic vector sensor and acceleration sensor measuring axis system provided by the present invention can reduce the parallelism error of 2° to 5° that originally existed in rough alignment through mechanical installation to 0.2°, greatly improving the performance of the magnetic fuse.

[0069] The above specific embodiments merely illustrate the design principles of the present invention. The shapes and names of the components described herein may vary and are not limiting. Therefore, those skilled in the art may modify or substitute equivalents for the technical solutions described in the above embodiments. Such modifications and substitutions, without departing from the inventive spirit and technical solutions of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A sensor module shaft parallel adjustment device, characterized in that: The adjustment device includes an adjustment base, a magnetic fuze sensor mounting plate, a mounting plate fastening screw, a mounting plate left-hand adjustment screw, and a mounting plate right-hand adjustment screw; The upper surface of the adjustment base is provided with a circular opening, and the other surfaces are provided with a square opening at the center thereof; the interior of the adjustment base is provided with a cavity matching the opening; The upper surface of the adjustment base is mounted with a magnetic fuze sensor mounting plate via mounting plate fastening screws; Mounting plate rotation adjustment screws are arranged on the upper and lower outsides of the opening on the upper surface of the adjustment base. The magnetic fuze sensor mounting plate can be rotated to the left by rotating the upper mounting plate to the left, and the magnetic fuze sensor mounting plate can be rotated to the right by rotating the lower mounting plate to the right.

2. The device according to claim 1, wherein The adjustable base is a cubic box, each surface of which is perpendicular to each other, with a verticality error accuracy of less than 0.2°; The magnetic fuze sensor mounting plate is annular, with waist-shaped holes on the left and right sides for fastening the magnetic fuze sensor mounting plate to the outer sides of the circular opening on the upper surface of the adjustment base, and allowing the magnetic fuze sensor mounting plate to rotate left and right with the center of the upper surface of the adjustment base as the origin; the magnetic fuze sensor mounting plate has four mounting holes on the inner side for mounting the magnetic fuze sensor; The magnetic fuze sensor is installed in the cavity of the adjustment base through the magnetic fuze sensor installation plate. The magnetic vector sensor of the magnetic fuze sensor is located above the opening, and the acceleration sensor of the magnetic fuze sensor is located inside the opening.

3. The device according to any one of claims 1 to 2, characterized in that The adjustment base and the magnetic fuze sensor mounting plate respectively have a base hole and a mounting plate hole corresponding to the opening, and the magnetic fuze sensor is placed in the cavity through the mounting plate hole and the base hole.

4. The device according to any one of claims 1 to 2, characterized in that The adjustment base is a cubic box with an edge length of 90 mm. A circular opening with a diameter of 58 mm is opened on the upper surface of the adjustment base, and a square opening with a side length of 68 mm is opened in the center of the other surfaces.

5. The device according to claim 2, wherein The acceleration sensor is a two-axis or three-axis acceleration sensor.

6. A sensor module shaft parallel adjustment method, the adjustment method is based on the sensor module shaft parallel adjustment device according to any one of claims 1 to 5, characterized in that: The adjustment method comprises the following steps: Step S1: placing the sensor module shaft parallel adjustment device on a non-magnetic water platform, and installing the magnetic fuze sensor into the sensor module shaft parallel adjustment device; The coordinate system of the sensor module axis parallel adjustment device is recorded as X'Y'Z'; on the non-magnetic water platform, the coordinate system of the sensor module axis parallel adjustment device is aligned with the northeast celestial coordinate system; with the center of the adjustment device as the origin, the horizontal east is the O'X' axis, the horizontal north is the O'Y' axis, and the vertical sky is the O'Z' axis; The magnetic vector sensor measurement axis coordinate system of the magnetic fuze sensor is recorded as XYZ; on a non-magnetic water platform, the magnetic vector sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal eastward axis being the OX axis, the horizontal northward axis being the OY axis, and the vertical skyward axis being the OZ axis; The acceleration sensor measurement axis coordinate system of the magnetic fuze sensor is denoted as ABC. On a non-magnetic water platform, the acceleration sensor measurement axis is aligned with the northeast celestial coordinate system, with the horizontal eastward axis being the OA axis, the horizontal northward axis being the OB axis, and the vertical skyward axis being the OC axis. After the magnetic fuze sensor is installed in the sensor module axis parallel adjustment device and placed on a non-magnetic water platform to be aligned with the northeast celestial coordinate system, the deviation between the magnetic vector sensor measurement axis coordinate system, the acceleration sensor measurement axis coordinate system, and the sensor module axis parallel adjustment device coordinate system is less than 5°; the output data of the acceleration sensor at this time is used as the horizontal output zero point of the acceleration sensor; the acceleration sensor measurement axis coordinate system plane AOB is parallel to the sensor module axis parallel adjustment device coordinate system plane X'O'Y' through the non-magnetic water platform surface; Step S2: Rotate the sensor module axis parallel adjustment device along the O'Y' axis within a range of plus or minus 60 degrees on the non-magnetic horizontal surface, and adjust the magnetic fuze sensor mounting plate left and right by rotating the adjustment screw until the output of the acceleration sensor measuring axis B remains unchanged; the adjustment screw is a left-hand adjustment screw and / or a right-hand adjustment screw for the mounting plate; Step S3: Orienting the measuring axis OZ of the magnetic vector sensor vertically upward, rotating the sensor module axis parallel adjustment device along the O'Z' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal surface, and adjusting the vertical adjustment screw of the OZ axis of the magnetic vector sensor forward and backward until the output of the measuring axis OZ of the magnetic vector sensor does not change; Step S4: Orienting the measuring axis OX of the magnetic vector sensor vertically downward, rotating the sensor module axis parallel adjustment device along the O'X' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal surface, and adjusting the vertical adjustment screw of the magnetic vector sensor OX axis forward and backward until the output of the magnetic vector sensor measuring axis OX does not change; Step S5: Orient the measuring axis OY of the magnetic vector sensor vertically upward, rotate the sensor module axis parallel adjustment device along the O'Y' axis within a range of plus or minus 180 degrees on the non-magnetic horizontal platform, and adjust the vertical adjustment screw of the magnetic vector sensor OY axis forward and backward until the output of the measuring axis OY of the magnetic vector sensor does not change.

Citation Information

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