CN205066773U - Compass test fixture - Google Patents
Compass test fixture Download PDFInfo
- Publication number
- CN205066773U CN205066773U CN201520804921.3U CN201520804921U CN205066773U CN 205066773 U CN205066773 U CN 205066773U CN 201520804921 U CN201520804921 U CN 201520804921U CN 205066773 U CN205066773 U CN 205066773U
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- China
- Prior art keywords
- compass
- measurement jig
- disk
- utility
- screw axle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 238000012360 testing method Methods 0.000 title abstract description 30
- 238000005259 measurement Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
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Abstract
The utility model discloses a compass test fixture, it includes base, disc and anchor clamps, be equipped with 360 calibrated scale on the base, the disc is located calibrated scale inboard and with coincide mutually in the centre of a circle of calibrated scale, anchor clamps are including rotatory ball journal and fixed arm, the rotation center of rotatory ball journal with coincide mutually in the centre of a circle of disc. The utility model discloses a compass test fixture simple structure, easy to operate, resultant error are less, test time is short, test cost is lower, the user's in -service use that can truly restore custom.
Description
Technical field
The utility model relates to a kind of compass measurement jig.
Background technology
Along with the expansion of intelligent machine function, in the indispensable module of the intelligent machine that increasing function adds, compass also becomes the indispensability of intelligent machine thereupon, for our outdoor activities and precision navigation provide support.And the accuracy of compass directly determines the scope that it uses, so have higher requirement to electromagnetic environment; But the thinning trend diminished of intelligent machine makes electromagnetic environment even more complex, so the compass error of a lot of machine is all comparatively large, only have those machines after test fully just can guarantee the stability of machine compass.
In compass test, general use error is descend the anglec of rotation in the vertical direction within 5 °.During test, normally used is that the paper being carved with 360 ° of coordinates carries out, and usual calibration steps is as follows: paper is placed on the platform of test, then finds positive northern zero degree position with mechanical finger compass; Shift scale paper overlaps with the zero degree of compass by its zero degree, and calibration completes.The shortcoming of such calibration is: cannot determine platform whether level, if can not level, can cause measuring error time in different rotation angle; And mobile phone is difficult to ensure to rotate centered by the scale center of circle during test, and mechanical finger compass can not rotate with mobile phone simultaneously, cannot carry out comparison calibration in measuring process to current angular, may bring error during measurement; Service condition under certain angle cannot be had in the vertical direction by testing mobile phone in addition.Above calibration steps not only test result is forbidden, and error is comparatively large, and the test duration is longer, thus has raised testing cost.
Utility model content
To be solved in the utility modelly be that existing compass means of testing complicated operation, resultant error are comparatively large, the test duration is longer, testing cost is higher, cannot the technical matters of the also actual use habit of original subscriber, and provide a kind of compass measurement jig.
The utility model solves above-mentioned technical matters by following technical proposals:
A kind of compass measurement jig, it comprises base, disk and fixture; Described base is provided with the index dial of 360 °, described disk is positioned at the inner side of described index dial and coincides with the center of circle of described index dial, described fixture comprises screw axle and fixed arm, the rotation center of described screw axle and the center of circle of described disk coincide, during to ensure that mobile phone horizontal direction rotates, central point is constant, and screw axle ensures precisely easy and simple to handle.
Preferably, described base is provided with two orthogonal level meters of axis, and during to ensure to test, base is horizontal.
Preferably, described disk is provided with an indicateing arm and a mechanical finger compass, the angle that the reading of indicateing arm and mobile phone rotate, and mechanical finger compass is then front to the calibration to current angular when measurement jig zero point and test for testing.
Preferably, the outside of described screw axle is provided with a chuck, described chuck is provided with some scales from horizontal plane to surface level vertical line upper end, the extended line of described scale is provided with accessibke porosity, described screw axle in the horizontal plane corresponding described accessibke porosity is provided with an inner via hole, and Fixed latches is also fixed through described inner via hole and described accessibke porosity.The setting of chuck make screw axle in vertical direction fixedly become possibility, so that better analog subscriber use habit, such as test 30 °, fixed vertical direction, 45 °, 60 °, 90 ° time compass accuracy, during rotation, Fixed latches is extracted, after navigating to an angle, Fixed latches is inserted and can test in this angle.
Preferably, described fixed arm is spill, and two front ends of described fixed arm are equipped with a set bolt, so that fixing mobile phone.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: the utility model compass measurement jig structure simply, easily operates, resultant error is less, the test duration is shorter, testing cost is lower, truly can go back the actual use habit of original subscriber.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is the plan structure schematic diagram of the utility model preferred embodiment.
Fig. 3 is the holder part Zoom Side TV structure schematic diagram of the utility model preferred embodiment.
Embodiment
Mode below by embodiment further illustrates the utility model, but is not therefore limited among described scope of embodiments by the utility model.The experimental technique of unreceipted actual conditions in the following example, conventionally and condition, or selects according to catalogue.
As Figure 1-3, a kind of compass measurement jig, it comprises base 1, disk 2 and fixture 3; Described base 1 is provided with the index dial of 360 °, described disk 2 is positioned at the inner side of described index dial and coincides with the center of circle of described index dial, described fixture 3 comprises screw axle 31 and fixed arm 32, and the rotation center of described screw axle 31 and the center of circle of described disk 2 coincide.Described base 1 is provided with two orthogonal level meters 11 of axis.Described disk is provided with indicateing arm 21 and a mechanical finger compass 22.The outside of described screw axle 31 is provided with a chuck 33, described chuck 33 is provided with some scales from horizontal plane to surface level vertical line upper end, the extended line of described scale is provided with accessibke porosity, described screw axle 31 in the horizontal plane corresponding described accessibke porosity is provided with an inner via hole, and Fixed latches 34 is also fixed through described inner via hole and described accessibke porosity.Described fixed arm 32 is spill, and two front ends of described fixed arm 32 are equipped with a set bolt.
Testing procedure is as follows:
Step 1, zero: the indicateing arm of disk points to the zero point of base index dial;
Step 2, horizontal alignment: base has two mutual vertical-horizontal provers of axis, according to the instruction movable clamp of the bubble movement of level meter, when the bubble of level meter is in center, base is just horizontal, and tests on the best levelling bench doubling test fixture at the outdoor spacious area located and carries out;
Step 3, refer to north calibration: according to the sensing of mechanical finger compass, rotate whole disk in the opposite direction, until mechanical finger compass and indicateing arm are in a straight line, the namely sensing of mechanical finger compass and indicateing arm is all zero degree;
Step 4, to calibrate, tested: during horizontal direction test, horizontally rotated tested mobile phone, the scale value indicated by indicateing arm and mobile phone displayed value are contrasted; During vertical direction test, Fixed latches is extracted, after navigating to an angle (as 30 °), Fixed latches is turned back to through hole, can horizontally rotate on this vertical angle and test.
Not movable clamp base to be noted in testing, otherwise also need to recalibrate.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (5)
1. a compass measurement jig, is characterized in that, it comprises base, disk and fixture; Described base is provided with the index dial of 360 °, and described disk is positioned at the inner side of described index dial and coincides with the center of circle of described index dial, and described fixture comprises screw axle and fixed arm, and the rotation center of described screw axle and the center of circle of described disk coincide.
2. compass measurement jig as claimed in claim 1, it is characterized in that, described base is provided with two orthogonal level meters of axis.
3. compass measurement jig as claimed in claim 1, it is characterized in that, described disk is provided with an indicateing arm and a mechanical finger compass.
4. compass measurement jig as claimed in claim 1, it is characterized in that, the outside of described screw axle is provided with a chuck, described chuck is provided with some scales from horizontal plane to surface level vertical line upper end, the extended line of described scale is provided with accessibke porosity, described screw axle in the horizontal plane corresponding described accessibke porosity is provided with an inner via hole, and Fixed latches is also fixed through described inner via hole and described accessibke porosity.
5. compass measurement jig as claimed in claim 1, it is characterized in that, described fixed arm is spill, and two front ends of described fixed arm are equipped with a set bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804921.3U CN205066773U (en) | 2015-10-16 | 2015-10-16 | Compass test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804921.3U CN205066773U (en) | 2015-10-16 | 2015-10-16 | Compass test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066773U true CN205066773U (en) | 2016-03-02 |
Family
ID=55393317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520804921.3U Withdrawn - After Issue CN205066773U (en) | 2015-10-16 | 2015-10-16 | Compass test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597033A (en) * | 2016-12-23 | 2017-04-26 | 东莞华贝电子科技有限公司 | Earth induction testing clamp and earth induction testing method |
| CN106595622A (en) * | 2015-10-16 | 2017-04-26 | 上海乐今通信技术有限公司 | Compass testing fixture |
-
2015
- 2015-10-16 CN CN201520804921.3U patent/CN205066773U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595622A (en) * | 2015-10-16 | 2017-04-26 | 上海乐今通信技术有限公司 | Compass testing fixture |
| CN106595622B (en) * | 2015-10-16 | 2024-02-13 | 上海乐今通信技术有限公司 | Compass test fixture |
| CN106597033A (en) * | 2016-12-23 | 2017-04-26 | 东莞华贝电子科技有限公司 | Earth induction testing clamp and earth induction testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20240213 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20240213 |