CN215767101U - Batch rapid calibration device for high-precision electronic compasses - Google Patents
Batch rapid calibration device for high-precision electronic compasses Download PDFInfo
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- CN215767101U CN215767101U CN202121828751.4U CN202121828751U CN215767101U CN 215767101 U CN215767101 U CN 215767101U CN 202121828751 U CN202121828751 U CN 202121828751U CN 215767101 U CN215767101 U CN 215767101U
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Abstract
The utility model discloses a batch rapid calibration device for high-precision electronic compasses, which belongs to the field of electronic compasses and comprises a horizontal adjustment platform, wherein a main positioning groove is formed in the horizontal adjustment platform, a regular hexahedron is installed in the main positioning groove, each surface of the inner side of the regular hexahedron is respectively provided with an electronic compass to be calibrated, a leveling device is arranged below the horizontal adjustment platform, and an auxiliary positioning groove for installing an electronic compass is also arranged in the main positioning groove; the calibration device of the utility model realizes batch rapid calibration of the electronic compass, greatly reduces the operation complexity, improves the efficiency and the accuracy of the calibration result, and meets the calibration requirement of the high-precision electronic compass.
Description
Technical Field
The utility model relates to the field of electronic compasses, in particular to a device for batch and quick calibration of high-precision electronic compasses.
Background
The electronic compass is a device for realizing an orientation function by sensing the earth magnetic field, and is widely applied to various attitude and direction measuring, navigation and positioning systems. The accelerometer and the magnetic sensor used in the electronic compass have various inherent errors such as sensitivity error, zero offset error, orthogonality error, installation error and the like, which greatly affect the precision of the electronic compass, and particularly always generate an error interference which cannot be eliminated in the later period for a plane electronic compass and a small-inclination electronic compass under a non-ellipsoid correction principle, so that the inherent errors of the electronic compass must be calibrated and compensated to achieve the optimal compensation state.
The conventional inherent error compensation methods are generally two types:
the first is that: sampling and calibrating electronic compasses which adopt the same batch of sensors, then calculating the average value of all calibrated parameters, and finally performing uniform inherent error correction on the same batch of electronic compasses, wherein the mode improves the efficiency, but the calibration is not performed according to the inherent error characteristic of each electronic compass, so that the precision of most of the electronic compasses is reduced to some extent;
secondly, the following steps: the method can calibrate and compensate each electronic compass one by one according to the inherent error characteristics of each electronic compass, thereby ensuring the precision of each electronic compass, but greatly reducing the production efficiency.
Disclosure of Invention
The utility model aims to provide a batch rapid calibration device for high-precision electronic compasses, so as to solve the problems.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a be used for high accuracy electron compass to mark device fast in batches, includes the level adjustment platform, be provided with a main constant head tank on the level adjustment platform, install a regular hexahedron in the main constant head tank, the electron compass of treating demarcation is installed respectively to every face of regular hexahedron's inboard, be provided with levelling device under the level adjustment platform.
As a preferred technical scheme: and an auxiliary positioning groove for mounting the electronic compass is also arranged in the main positioning groove.
As a further preferable technical scheme: still include single compass installation mechanism, bare board electron compass is fixed in on the single compass installation mechanism, single compass installation mechanism install in vice constant head tank.
As a preferred technical scheme: and a level gauge is also arranged on the horizontal adjusting platform.
As a preferred technical scheme: the horizontal adjusting platform is circular.
As a preferred technical scheme: the leveling device is three, and three leveling device are in level adjustment platform is lower evenly to be set up.
As a further preferable technical scheme: the leveling device is an adjusting knob.
According to the utility model, a horizontal adjustment platform is arranged to adapt to the working condition of a non-horizontal plane, so that the horizontal adjustment of the platform can be rapidly realized; then, a corresponding rectangular positioning groove is designed on the horizontal adjusting platform and comprises a large square main positioning groove, and a regular hexahedron or a plurality of independent electronic compasses can be placed in the main positioning groove; the design has a regular hexahedron structure, six faces of the regular hexahedron can be respectively provided with an electronic compass, the inherent errors of the six electronic compasses can be calibrated simultaneously, and in addition, four small discrete positioning structures are designed, so that the inherent errors of a single or a plurality of electronic compasses can be calibrated according to the actual use condition; the regular hexahedron structure evenly distributes the electronic compass power supply line, adopts copper line and twisted pair mode in order to reduce the magnetic field interference of power supply to electronic compass.
A discrete horizontal adjusting platform is adopted, the horizontal adjustment of the platform is realized by adjusting the heights of the three adjusting positions, and a horizontal plane is provided for quick calibration;
the mode that a plurality of small-size vice constant head tanks and big main constant head tank combine is adopted, can adapt to the multiple demarcation mode of multiple electron compass.
Compared with the prior art, the utility model has the advantages that: the calibration device of the utility model realizes batch rapid calibration of the electronic compass, greatly reduces the operation complexity, improves the efficiency and the accuracy of the calibration result, and meets the calibration requirement of the high-precision electronic compass.
Drawings
FIG. 1 is a schematic view of the regular hexahedron installation calibration of embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural diagram of the electronic compass with a housing of FIG. 1;
FIG. 4 is a schematic structural view of the cube of FIG. 1;
FIG. 5 is a schematic structural view of the leveling knob in FIG. 1
FIG. 6 is a schematic view of the level of FIG. 1;
FIG. 7 is a schematic diagram of discrete installation calibration of embodiment 2 of the present invention;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic structural view of the main positioning groove and the auxiliary positioning groove in FIGS. 1 and 7;
in the figure: 1. a regular hexahedron; 2. an electronic compass; 3. a horizontal adjustment platform; 4. a leveling knob; 5. a main positioning groove; 6. a level gauge; 7. an auxiliary positioning groove; 8. a bare board electronic compass; 9. a single compass mounting mechanism.
Detailed Description
The utility model will be further explained with reference to the drawings.
Example 1:
in the embodiment, a regular hexahedron is taken as an example for installation and calibration, and referring to fig. 1, a batch rapid calibration device for high-precision electronic compasses comprises a circular horizontal adjustment platform 3, wherein a main positioning groove 5 is arranged on the horizontal adjustment platform 3, referring to fig. 9, a regular hexahedron 1 is installed in the main positioning groove 5, each surface of the inner side of the regular hexahedron 1 is respectively provided with a shell-carrying or bare-plate electronic compass 2 to be calibrated, the structure of the shell-carrying electronic compass 2 is shown in fig. 3, the structure of the regular hexahedron 1 is shown in fig. 4, six surfaces of the regular hexahedron 1 can be respectively provided with one electronic compass 2, six surfaces are total, the regular hexahedron 1 can be quickly installed and taken down, each surface is designed with a corresponding groove, and both the bare-plate electronic compass and the bare-plate electronic compass with the shell can be installed at corresponding installation hole positions;
three leveling knobs 4 are arranged below the horizontal adjusting platform 3, as shown in fig. 5, the three leveling knobs 4 are uniformly arranged below the horizontal adjusting platform 3, see fig. 2; the horizontal adjusting platform 3 is also provided with two gradienters 6, and as shown in fig. 6, the two gradienters 6 are arranged on the outer sides of the two adjacent side surfaces of the regular hexahedron 1;
the round horizontal adjusting platform 3 is arranged to adapt to the working condition of a non-horizontal plane, so that the horizontal adjustment of the platform can be quickly realized;
before calibration, the circular horizontal adjusting platform 3 is adjusted to be horizontal through the three leveling knobs 4;
and then, the six electronic compasses are respectively arranged on six surfaces of the regular hexahedron 1, then the installation posture of the regular hexahedron is rapidly switched by utilizing the largest main positioning groove 5 on the horizontal adjusting platform 3, and the calibration of each electronic compass in X +, X-, Y, Y-, Z + and Z-six directions is completed simultaneously.
Example 2:
in the present embodiment, taking a discrete installation standard as an example, referring to fig. 7 and 8, on the basis of embodiment 1, a regular hexahedron 1 is not installed, but a secondary positioning slot 7 for installing a bare board electronic compass 8 is further arranged in the primary positioning slot 5, referring to fig. 9;
the single-compass electronic positioning device further comprises a single-compass mounting mechanism 9, the single-compass mounting mechanism 9 can be made of an aluminum plate, the bare-board electronic compass 8 is fixed on the single-compass mounting mechanism 9, and the single-compass mounting mechanism 9 is mounted on the auxiliary positioning groove 7;
before calibration, the circular platform is still adjusted to be horizontal through three leveling devices, namely 4-1, 4-2 and 4-3;
then the bare board electronic compass 8 is arranged on four separated single compass mounting mechanisms 9, and the calibration of each electronic compass in X +, X-, Y, Y-, Z + and Z-six directions is realized by quickly switching the small auxiliary positioning grooves 7 on the circular horizontal adjusting platform 3;
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a be used for high accuracy electron compass to mark device fast in batches which characterized in that: including the level adjustment platform, be provided with a main constant head tank on the level adjustment platform, install a regular hexahedron in the main constant head tank, every face of regular hexahedron's inboard is installed respectively and is treated the electronics compass of demarcation, be provided with levelling device under the level adjustment platform.
2. The batch rapid calibration device for the high-precision electronic compasses according to claim 1, characterized in that: and an auxiliary positioning groove for mounting the electronic compass is also arranged in the main positioning groove.
3. The batch rapid calibration device for the high-precision electronic compasses according to claim 2, characterized in that: still include single compass installation mechanism, bare board electron compass is fixed in on the single compass installation mechanism, single compass installation mechanism install in vice constant head tank.
4. The batch rapid calibration device for the high-precision electronic compasses according to claim 1, characterized in that: and a level gauge is also arranged on the horizontal adjusting platform.
5. The batch rapid calibration device for the high-precision electronic compasses according to claim 1, characterized in that: the horizontal adjusting platform is circular.
6. The batch rapid calibration device for the high-precision electronic compasses according to claim 1, characterized in that: the leveling device is three, and three leveling device are in level adjustment platform is lower evenly to be set up.
7. The batch rapid calibration device for the high-precision electronic compasses according to claim 6, characterized in that: the leveling device is an adjusting knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121828751.4U CN215767101U (en) | 2021-08-06 | 2021-08-06 | Batch rapid calibration device for high-precision electronic compasses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121828751.4U CN215767101U (en) | 2021-08-06 | 2021-08-06 | Batch rapid calibration device for high-precision electronic compasses |
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| CN215767101U true CN215767101U (en) | 2022-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597571A (en) * | 2022-12-15 | 2023-01-13 | 西南应用磁学研究所（中国电子科技集团公司第九研究所）（Cn） | Method for quickly calibrating and compensating error and installation error of electronic compass sensor |
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2021
- 2021-08-06 CN CN202121828751.4U patent/CN215767101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597571A (en) * | 2022-12-15 | 2023-01-13 | 西南应用磁学研究所（中国电子科技集团公司第九研究所）（Cn） | Method for quickly calibrating and compensating error and installation error of electronic compass sensor |
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