CN106595622A

CN106595622A - Compass testing fixture

Info

Publication number: CN106595622A
Application number: CN201510674241.9A
Authority: CN
Inventors: 冯鹏
Original assignee: SHANGHAI LOVDREAM COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: SHANGHAI LOVDREAM COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2015-10-16
Filing date: 2015-10-16
Publication date: 2017-04-26
Anticipated expiration: 2035-10-16
Also published as: CN106595622B

Abstract

The present invention discloses a compass testing fixture, which comprises a base, a disc and a clamper, wherein the base is provided with a 360 DEG dial disc, the disc is positioned on the inner side of the dial disc and is coincident with the circle center of the dial disc, the clamper comprises a rotation ball shaft and a fixation arm, and the rotation center of the rotation ball shaft is coincident with the circle center of disc. According to the present invention, the compass testing fixture has advantages of simple structure, easy operation, low result error, short testing time and low testing cost, and can really reduce the user actual use habit.

Description

Compass measurement jig

Technical field

The present invention relates to a kind of compass measurement jig.

Background technology

With the expansion of intelligent machine function, in the indispensable module of the intelligent machine of increasing function addition, Compass also becomes the indispensability of intelligent machine therewith, and the outdoor activities and precision navigation for us provide support. And the accuracy of compass directly determines its scope for using, so there is higher wanting to electromagnetic environment Ask；But the thinning trend for diminishing of intelligent machine causes electromagnetic environment even more complex, so the finger of many machines Compass error is all larger, and only those machines after sufficiently testing just can ensure that machine compass Stability.

Compass test in generally use error be under vertical direction the anglec of rotation within 5 °.Test When, what is be usually used is one and is carved with the paper of 360 ° of coordinates and carries out, and usual calibration steps is as follows： Paper is placed on the platform of test, then finds positive north zero degree position with mechanical finger compass；Shift scale paper allows Its zero degree is overlapped with the zero degree of compass, and calibration is completed.So calibration shortcoming be：Platform cannot be determined Whether level, if can not level, measurement error can be caused when in different rotation angle；And handss when testing Machine it is difficult to ensure that rotated centered on the scale center of circle, and mechanical finger compass can not be rotated with mobile phone simultaneously, Comparison calibration cannot be carried out to current angular in measurement process, error during measurement, may be brought；In addition cannot Service condition of the testing mobile phone in the case where vertical direction has certain angle.Above calibration steps not only test result Inaccurate, error is larger, and the testing time is longer, so as to raise testing cost.

The content of the invention

The present invention is to solve existing compass means of testing complex operation, resultant error it is larger, test Time is longer, testing cost is higher, cannot go back the technical problem of the actually used custom of original subscriber, and provides A kind of compass measurement jig.

The present invention solves above-mentioned technical problem by following technical proposals：

A kind of compass measurement jig, which includes base, disk and fixture；The base is provided with 360 ° Graduated disc, the disk be located at the graduated disc inner side and coincide with the center of circle of the graduated disc, The fixture includes screw axle and fixed arm, the center of rotation of the screw axle and the circle of the disk The heart coincides, and to ensure that central point is constant during the rotation of mobile phone horizontal direction, and screw axle ensures operation letter Just it is accurate.

It is preferred that the base is provided with the orthogonal level indicator of two axis, at the bottom of ensureing during test Seat is horizontal.

It is preferred that the disk is provided with an indicateing arm and a mechanical finger compass, the reading of indicateing arm is handss Machine rotation angle, mechanical finger compass then be used for test before to measurement jig zero point and test when to current The calibration of angle.

It is preferred that the outside of the screw axle is provided with a chuck, the chuck is from horizontal plane to level Some scales are provided with till the vertical line upper end of face, the extended line of the scale is provided with accessibke porosity, the rotation Ball axle corresponds to the accessibke porosity in the horizontal plane and is provided with an inner via hole, Fixed latches through the inner via hole with The accessibke porosity is simultaneously fixed.The setting of chuck is possibly realized the fixation in vertical direction of screw axle, So as to more preferable analog subscriber use habit, for example test 30 ° of fixed vertical direction, 45 °, 60 °, When 90 °, Fixed latches are extracted during rotation by the accuracy of compass, will be fixed after navigating to an angle Latch insertion can be tested in the angle.

It is preferred that the fixed arm is spill, two front ends of the fixed arm are equipped with a fixing bolt, To fix mobile phone.

On the basis of common sense in the field is met, above-mentioned each optimum condition, can combination in any, obtain final product this Bright each preferred embodiments.

The present invention positive effect be：Compass measurement jig simple structure of the present invention, easily behaviour Make, resultant error is less, the testing time is shorter, testing cost is relatively low, can truly go back original subscriber's reality Use habit.

Description of the drawings

Structural representations of the Fig. 1 for present pre-ferred embodiments.

Overlooking the structure diagrams of the Fig. 2 for present pre-ferred embodiments.

Fig. 3 amplifies side structure schematic view for the holder part of present pre-ferred embodiments.

Specific embodiment

The present invention is further illustrated below by the mode of embodiment, but is not therefore limited the present invention to Among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, according to normal Rule method and condition, or select according to catalogue.

As Figure 1-3, a kind of compass measurement jig, which includes base 1, disk 2 and fixture 3； The base 1 is provided with 360 ° of graduated disc, the disk 2 be located at the inner side of the graduated disc and with The center of circle of the graduated disc coincides, and the fixture 3 includes screw axle 31 and fixed arm 32, described The center of rotation of screw axle 31 is coincided with the center of circle of the disk 2.The base 1 is provided with two The orthogonal level indicator of individual axis 11.The disk is provided with an indicateing arm 21 and a mechanical finger compass 22.The outside of the screw axle 31 is provided with a chuck 33, and the chuck 33 is from horizontal plane to level Some scales are provided with till the vertical line upper end of face, the extended line of the scale is provided with accessibke porosity, the rotation Ball axle 31 corresponds to the accessibke porosity in the horizontal plane and is provided with an inner via hole, and Fixed latches 34 are passed through in described Through hole is with the accessibke porosity and fixed.The fixed arm 32 be spill, two front ends of the fixed arm 32 It is equipped with a fixing bolt.

Testing procedure is as follows：

Step 1, zero：The indicateing arm of disk points to the zero point of base graduated disc；

Step 2, horizontal alignment：There are two axis to be mutually perpendicular to horizontal alignment instrument on base, according to level The instruction movable clamp of the bubble movement of instrument, when the bubble of level indicator is in center, base is at level Position, the levelling bench of an area twice test fixture of the test preferably at the outdoor spaciousness are enterprising OK；

Step 3, refer to northern calibration：According to the sensing of mechanical finger compass, whole circle is rotated in the opposite direction Disk, until mechanical finger compass and indicateing arm are in a straight line, that is, mechanical finger compass and indicateing arm Sensing be all zero degree；

Step 4, calibration are completed, and are tested：When horizontal direction is tested, tested mobile phone is horizontally rotated, Scale value indicated by indicateing arm is contrasted with mobile phone show value；When vertical direction is tested, will be fixed Latch is extracted, and after navigating to an angle (such as 30 °), Fixed latches is turned back to through hole, you can at this Horizontal rotation on vertical angle is tested.

In testing it is noted that should not movable clamp base, otherwise also need to recalibrate.

In describing the invention, it is to be understood that term " on ", D score, "front", "rear", The orientation of instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or Position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and letter Change description, rather than indicate or imply that the device or element of indication must be with specific orientation, with specific Azimuth configuration and operation, therefore be not considered as limiting the invention.

Although the foregoing describing the specific embodiment of the present invention, those skilled in the art should manage Solution, this is merely illustrative of, and protection scope of the present invention is defined by the appended claims.Ability The technical staff in domain, can be to these embodiments on the premise of the principle and essence without departing substantially from the present invention Various changes or modifications are made, but these changes and modification each fall within protection scope of the present invention.

Claims

1. a kind of compass measurement jig, it is characterised in which includes base, disk and fixture；Institute State the graduated disc that base is provided with 360 °, the disk be located at the inner side of the graduated disc and with the quarter The center of circle of scale coincides, and the fixture includes screw axle and fixed arm, the rotation of the screw axle Center is coincided with the center of circle of the disk.

2. compass measurement jig as claimed in claim 1, it is characterised in that set on the base There is the orthogonal level indicator of two axis.

3. compass measurement jig as claimed in claim 1, it is characterised in that set on the disk There are an indicateing arm and a mechanical finger compass.

4. compass measurement jig as claimed in claim 1, it is characterised in that the screw axle Outside be provided with a chuck, if the chuck is provided with dry etching from horizontal plane to horizontal plane vertical line upper end Degree, the extended line of the scale are provided with accessibke porosity, and the screw axle corresponds to described outer in the horizontal plane Through hole is provided with an inner via hole, and Fixed latches are with the accessibke porosity and fixed through the inner via hole.

5. compass measurement jig as claimed in claim 1, it is characterised in that the fixed arm is Spill, two front ends of the fixed arm are equipped with a fixing bolt.