CN104121898A - Test device for triaxial microelectronic compass and test method thereof - Google Patents
Test device for triaxial microelectronic compass and test method thereof Download PDFInfo
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- CN104121898A CN104121898A CN201410317412.8A CN201410317412A CN104121898A CN 104121898 A CN104121898 A CN 104121898A CN 201410317412 A CN201410317412 A CN 201410317412A CN 104121898 A CN104121898 A CN 104121898A
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- 238000012360 testing method Methods 0.000 title claims abstract description 193
- 238000010998 test method Methods 0.000 title abstract description 10
- 238000004377 microelectronic Methods 0.000 title abstract 2
- 230000005284 excitation Effects 0.000 claims abstract description 20
- 230000001939 inductive effect Effects 0.000 claims description 60
- 230000035945 sensitivity Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 8
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- 238000005516 engineering process Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 6
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- 239000000696 magnetic material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 239000011435 rock Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/38—Testing, calibrating, or compensating of compasses
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Abstract
The invention discloses a test device for a triaxial microelectronic compass. The test device comprises a driving part, a transmission part and a testing part which are successively mounted from top to bottom in a mode of being vertical to a horizontal surface; the driving part comprises a main motor and a vice motor mounted under the main motor; the transmission part comprises a main transmission shaft, a transmission belt, a main shaft sleeve, a turnplate, a fixed frame, a vice transmission shaft and vice shaft sleeves; the testing part comprises test circuit boards and to-be-tested samples mounted on the test circuit boards, and the test circuit boards are respectively mounted on end faces at two sides of the vice transmission shaft. The invention also discloses a test method based on the test device; rotation of the main motor and rotation of the vice motor respectively provide a test-required Z induction shaft magnetic field excitation signal and test-required X induction shaft and Y induction shaft magnetic field excitation signals for each to-be-tested sample, initial output values of three induction shafts of each to-be-tested sample are tested, and whether the initial output values accord with product specifications is judged. The device occupation area is small, the test cost is low, the device rotational stability is high, and the test method is simple and efficient.
Description
Technical field
The present invention relates to miniature electronic compass technical field, particularly relate to a kind of testing apparatus and method of testing thereof of three axle miniature electronic compasses.
Background technology
Digital compass is the sensor of measuring object and terrestrial magnetic field angle, also can measure other field signals, by magnetic induction partly and treatment circuit is integrated forms.The compass of one of Ancient Times in China four inventions is widely used in navigation, aviation, war, detection, motion, construction, auto navigation by the mankind already, in the mankind's activity such as even practice geomancy for selecting a site for a tomb, house, etc.Traditional mechanical type compass volume is large, and low precision, is difficult to digitizing, thereby is difficult to adapt to the requirement in the epoch of digital network instantly.Along with magnetic material, the development of micro-processing technology, the data storage part in computing machine---magnetic disc storage head particularly, it is the development of head technology, drive magnetic induction technology from Hall effect techniques anisotropic magnetoresistive (AMR), giant magnetoresistance (GMR), tunnel magnetoresistive (TMR) technical development, these technology are also used in digital compass gradually, and on market, the digital compass product of above various technology can have been bought now.From about 10 years, start, digital compass starts to be widely used in mobile phone, panel computer, GPS, game machine, sports watch, toy etc., becomes one of core components and parts of Intelligent mobile electronic equipment.
Because miniature electronic compass manufacture process is quite complicated, relate to the manufacture processes such as disk processing, chip package, total total hundreds of road procedure of processing, any procedure wherein imperfect, capital exerts an influence to the performance of digital compass, and particularly the performance between each device is inconsistent; In addition, mobile electronic device need to be responded to X, Y, tri-axial signals of Z, the performance of three axles in same product also can be inconsistent, and user's need to be magnetic direction and the strength signal of perception real world, the device of same model, and must have same performance on three inductive axis.So before miniature electronic compass product export, must carry out one by one parameter testing and calibration, as zero offset, sensitivity etc., to guarantee that client obtains the product that performance is consistent.
Test digital compass device and just must apply a certain amount of exciting signal source to it, measure the initial output valve of digital compass, then by the control circuit regulation output value of digital compass inside, obtain product up to specification.When test digital compass, fixedly testing sample is motionless, change the direction and intensity in magnetic field, the direction that also can change testing sample in fixing magnetic field is implemented sample calibration, and the former comparison in equipment is complicated, the latter can directly utilize terrestrial magnetic field as pumping signal, simple and practical.When test three axle digital compass, complete three axial performance tests.When utilizing fixed magnetic field as pumping signal, need to change the direction of testing sample X, Y, tri-axles of Z, so just must use two motors and control three axial conversion.Because motor can produce disturbing magnetic field, the motor of digital compass testing apparatus must from testing sample and testing circuit board enough away from, motor drives testing circuit board to change direction by nonmagnetic drive disk assembly, so digital compass testing apparatus mainly consists of drive part, running part and part of detecting three parts.
Existing technology is shown in Fig. 6, and the drive part 51 of digital compass testing apparatus 50, running part 52 and part of detecting 53 level connection joints are installed, and floor area is large, sees Fig. 7, and in needing between the test carriage of constant temperature, floor area greatly just means that cost is high.And part of detecting 53 is arranged on the transmission shaft of horizontal positioned, asymmetric due to gravity, affects the stability that testing apparatus is rotated, and the life-span of testing apparatus.
Therefore need badly and provide a kind of testing apparatus and method of testing thereof of three novel axle miniature electronic compasses to solve the problems referred to above.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of testing apparatus and method of testing thereof of three axle miniature electronic compasses, and occupation area of equipment is little, and testing expense is low, and the rotational stability of equipment is high, and method of testing is simply efficient.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the testing apparatus that a kind of three axle miniature electronic compasses are provided, comprise vertical level is installed successively from top to bottom drive part, running part, part of detecting, drive part comprises main motor, is arranged on the auxiliary motor of main motor below; Running part comprises final drive shaft, driving belt, collar bush, rotating disk, fixed mount, counter drive shaft and countershaft cover, main rotary shaft upper end is fixed on the shell of auxiliary motor, lower end is fixed on fixed mount by collar bush and the rotating disk being fixed in collar bush, the unsettled final drive shaft inside that is arranged on of driving belt, one end is connected with the turning axle of auxiliary motor, the other end is connected with counter drive shaft, and counter drive shaft is vertically fixed on main rotary shaft lower end by countershaft cover; Part of detecting comprises testing circuit board, is arranged on the testing sample on testing circuit board, and testing circuit board is arranged on the both sides end face of secondary rotation axis.
In a preferred embodiment of the present invention, the shaft center line of main motor is mutually vertical with the shaft center line of auxiliary motor, for three axle miniature electronic compasses provide the magnetic field excitation signal of X, Y, Z inductive axis.
In a preferred embodiment of the present invention, main rotary shaft is hollow drum, and the driving belt of main rotary shaft inside is not contacted with main rotary shaft, thereby makes final drive shaft diameter large, can improve rotational stability, extends maintenance period.
In a preferred embodiment of the present invention, the shaft center line of counter drive shaft and the shaft center line of auxiliary motor are parallel to each other.
In a preferred embodiment of the present invention, main motor is fixed on motor fixed mount, while making whole testing apparatus operation, stablizes and does not rock.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the method for testing that a kind of testing apparatus of three axle miniature electronic compasses is provided, when testing circuit board is parallel with fixed magnetic field, first, along the shaft center line of auxiliary motor, successively rotate testing circuit board 90 degree, make the X inductive axis positive dirction of testing sample become 0 degree with fixed magnetic field positive dirction respectively, 90 degree, 180 degree, 270 degree, Y inductive axis positive dirction becomes respectively-90 degree with fixed magnetic field positive dirction, 0 degree, 90 degree, 180 degree, corresponding to all angles, the initial output valve of three inductive axis of testing sample is respectively: Vx1, Vy1, Vz1, Vx2, Vy2, Vz2, Vx3, Vy3, Vz3, Vx4, Vy4, Vz4.By can be calculated the X of sample, initial sensitivity and the zero offset of Y inductive axis:
X-axis sensitivity: Sx=(Vx1-Vx2)-(Vx3-Vx4) }/2 times of magnetic field intensitys
Y-axis sensitivity: Sy=(Vy2-Vy1)-(Vy4-Vy3) }/2 times of magnetic field intensitys
X-axis zero offset: X0=(Vx2+Vx4)/2
Y-axis zero offset: Y0=(Vy1+Vy3)/2
The initial output valve of X per sample, Y-axis, judges whether to meet product specification.
Secondly, along the shaft center line of main motor, successively rotate testing circuit board 90 degree, make the Z inductive axis positive dirction of testing sample become-90 degree, 0 degree, 90 degree, 180 degree with fixed magnetic field positive dirction, the initial output valve of Z inductive axis is respectively: Vz5, Vz6, Vz7, Vz8.By can be calculated initial sensitivity and the zero offset of the Z inductive axis of sample:
Z axis sensitivity: Sz=(Vz6-Vz5)-(Vz8-Vz7) }/2 times of magnetic field intensitys
Z axis zero offset: Z0=(Vz5+Vz7)/2
The initial output valve of Z axis per sample, judges whether to meet product specification.
In a preferred embodiment of the present invention, if record X, Y, zero offset X0, the Y0 of Z inductive axis, the Z0 of testing sample, or sensitivity S X, SY, SZ exceed product specification, by the signal handling equipment of connecting test equipment, adjust the parameter of testing sample, the final output valve of zero offset and the final output valve of sensitivity are adjusted in product specification, thereby completed the test of testing sample and calibration.
In a preferred embodiment of the present invention, the relative angle that drive part changes testing sample and fixed magnetic field provides magnetic field excitation signal, magnetic field excitation signal is provided by fixed magnetic field and drive part, fixed magnetic field is as the exciting signal source of test testing sample, the testing sample that rotates to be of main motor provides the magnetic field excitation signal of testing required Z inductive axis, and the testing sample that rotates to be of auxiliary motor provides the required X of test, the magnetic field excitation signal of Y inductive axis.
In a preferred embodiment of the present invention, a plurality of testing samples can be installed on testing circuit board and test simultaneously, testing circuit board is fixed on counter drive shaft, owing to there is no the restriction of framework, testing circuit board can be sufficiently large, once loads many samples to be tested, production capacity is large, and efficiency is high.
The invention has the beneficial effects as follows: testing apparatus floor area of the present invention is little, greatly reduce testing expense, in addition, the each several part structure at right angle setting of testing apparatus has been avoided the rotation instability problem causing because part of detecting gravity is asymmetric, reduced maintenance of equipment number of times, extended the serviceable life of equipment, method of testing relies on the architectural feature of testing apparatus, simple to operate, realize efficiently the test of testing sample and calibration.
Accompanying drawing explanation
Fig. 1 is the structural representation of testing apparatus one preferred embodiment of the present invention's three axle miniature electronic compasses.
Fig. 2 is the X of the present invention's three axle miniature electronic compasses, the decomposing schematic representation of Y-axis test.
Fig. 3 is the decomposing schematic representation of the Z axis test of three axle miniature electronic compasses of the present invention.
Fig. 4 is that many of the present invention's three axle miniature electronic compass testing equipments install schematic side view.
Fig. 5 is that many of the present invention's three axle miniature electronic compass testing equipments install floor area schematic diagram.
Fig. 6 is that many of the three axle miniature electronic compass testing equipments of prior art are installed schematic top plan view.
Fig. 7 is that many of the three axle miniature electronic compass testing equipments of prior art are installed floor area schematic diagram.
In accompanying drawing, the mark of each parts is as follows: 2, the shaft center line of main motor, 3, the shaft center line of auxiliary motor, 5, counter drive shaft axial line, 8, magnetic direction, 8a, magnetic direction during side-looking, 8b, end apparent time magnetic direction, 11, motor fixed mount, 12, main motor, 15, auxiliary motor, 16, final drive shaft, 16a, final drive shaft backplan, 18, driving belt, 20, collar bush, 22, rotating disk, 23, fixed mount, 24, countershaft cover, 26, counter drive shaft, 26a, counter drive shaft backplan, 27, testing circuit board, 27a, testing circuit board is positive, 27b, testing circuit board backplan, 28, testing circuit board, 28b, testing circuit board backplan, 31, testing sample, 31a, testing sample is positive, 31b, testing sample backplan, 32, testing sample, 32a, testing sample is positive, 32b, testing sample backplan, 33, testing sample, 33b, testing sample backplan, 34, testing sample, 34b, testing sample backplan, 40, testing apparatus, 41, drive part, 42, running part, 43, part of detecting, 50, prior art testing apparatus, 51, 50 drive part, 52, 50 running part, 53, 50 part of detecting.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of testing apparatus 40 of three axle miniature electronic compasses, comprises from top to bottom vertical level is installed successively drive part 41, running part 42, part of detecting 43, and drive part 41 comprises main motor 12, is arranged on the auxiliary motor 15 of main motor 12 belows; Running part 42 comprises final drive shaft 16, driving belt 18, collar bush 20, rotating disk 22, fixed mount 23, counter drive shaft 26 and countershaft cover 24, main rotary shaft 16 upper ends are fixed on the shell of auxiliary motor 15, lower end is fixed on fixed mount 23 by collar bush 20 and rotating disk 22, unsettled final drive shaft 16 inside that are arranged on of driving belt 18, one end is connected with the turning axle of auxiliary motor 15, the other end is connected with counter drive shaft 26, and counter drive shaft 26 overlaps 24 by countershaft and is vertically fixed on main rotary shaft 16 lower ends; Part of detecting 43 comprises testing circuit board 27, is arranged on the testing sample 31 on testing circuit board 27, and testing circuit board 27 is arranged on the both sides end face of secondary rotation axis 26.
In one embodiment, described main motor 12 is fixed on motor fixed mount 11; Motor fixed mount 11 is positioned at the top of testing apparatus 40, can be arranged on the ceiling, crossbeam, metal frame in workshop, or fix on the ground by on-magnetic support; Auxiliary motor 15 is positioned at the below of main motor 12, is arranged on the turning axle of main motor 12, and the shell of auxiliary motor 15 rotates with the rotation of main motor 12.The turning axle of main motor 12 is along shaft center line 2 rotations of main motor, the turning axle of auxiliary motor 15 is along shaft center line 3 rotations of auxiliary motor, the shaft center line 3 of auxiliary motor and the shaft center line of main motor 2 are mutually vertical, and main motor 12 and auxiliary motor 15 have formed the drive part 41 of testing apparatus 40 of the present invention.Drive part 41 magnetic materials, and rotate or have disturbing magnetic field during locking and produce, must with part of detecting 43 at intervals, conventionally more than 1 meter.
Described final drive shaft 16 is fixed on the shell of auxiliary motor 15, because the shell of auxiliary motor 15 is fixed on the turning axle of main motor 12, so the rotation of final drive shaft 16 is controlled by main motor 12.Final drive shaft 16 is hollow drums, there is a rotating disk 22 thereon, by collar bush 20, fixed, collar bush 20 is fixed on fixed mount 23, and rotating disk 22 can rotate in horizontal plane, but can not rock in any direction, guaranteed like this rotational stabilization of final drive shaft 16, and can partial weight-bearing, reduce maintenance cost, extension device serviceable life.Driving belt 18 is positioned at final drive shaft 16 inside, but both are without any contact, and such design is exactly in order to increase the diameter of final drive shaft 16, improves the symmetry of running part 42, promotes rotational stability, extends maintenance period.One end of driving belt 18 is connected with the turning axle of auxiliary motor 15, other end auxiliary connection transmission shaft 26, auxiliary motor 15 drives driving belt 18 like this, thereby drives counter drive shaft 26 along 5 rotations of counter drive shaft axial line, and the direction of counter drive shaft axial line 5 is parallel with the shaft center line of auxiliary motor 3.Counter drive shaft 26 overlaps 24 by countershaft and is fixed on final drive shaft 16, counter drive shaft 26 can overlap 24 interior rotations at countershaft, but can not rock in any direction, main like this motor 12 drives counter drive shaft 26 along shaft center line 2 rotations of main motor by final drive shaft 16 and countershaft cover 24.Final drive shaft 16, counter drive shaft 26, driving belt 18, collar bush 20, countershaft cover 24, rotating disk 22, fixed mount 23 have formed the running part 42 of miniature electronic compass testing equipment 40 of the present invention, and all parts of described running part 42 are nonmagnetic substance.
Described testing circuit board 27,28 is separately fixed at the two ends of counter drive shaft 26, and vertical with counter drive shaft axial line 5, and testing circuit board 27,28 is nonmagnetic substance, has power lead to be connected with signal handling equipment with outside controllable electric power with signal wire.Testing sample 31,32,33,34 is arranged on testing circuit board 27,28, and the plane vertical with counter drive shaft axial line 5 is X, the Y inductive axis of miniature electronic compass test sample product, the Z inductive axis that the direction parallel with counter drive shaft axial line 5 is testing sample.Testing circuit board 27,28 and testing sample 31,32,33,34 have formed the part of detecting 43 of miniature electronic compass testing equipment 40 of the present invention.
Because the present invention utilizes fixed magnetic field as exciting signal source, when installing, testing apparatus 40 must have a fixing angle with fixed magnetic field.In an example of the present invention, see Fig. 1 and Fig. 4, the drive part 41 of testing apparatus 40 of the present invention, running part 42, part of detecting 43 are installed perpendicular to surface level successively from top to bottom, therefore magnetic direction 8 is parallel to surface level, the X inductive axis of the testing sample during with testing circuit board shown in Fig. 1 27,28 position is parallel, and Y, Z inductive axis are vertical.Fixed magnetic field is as the exciting signal source of test testing sample, the testing sample that rotates to be of main motor 12 provides the magnetic field excitation signal of testing required Z inductive axis, and the testing sample that rotates to be of auxiliary motor 15 provides the required X of test, the magnetic field excitation signal of Y inductive axis.
Illustrate method of testing of the present invention below.Three X of axle miniature electronic compass of the present invention, the test of Y-axis by rotating testing circuit boards 27,28 along counter drive shaft axial line 5, to diverse location, realize, as an example, see Fig. 2, positive 27a from testing circuit board 27, when position 1, the direction 8a in magnetic field is consistent with the X inductive axis positive dirction of testing sample 31,32, vertical with Y, the Z inductive axis of testing sample, positive 31a, the 32a of testing sample 31,32 towards being exactly+direction of Z inductive axis.Take testing sample 31 as example, and establishing magnetic field intensity is B, the magnetic field excitation signal that now three inductive axis receive respectively: X-axis is+1B, and Y-axis and Z axis are that the initial output valve of 0, three inductive axis is respectively Vx1, Vy1, Vz1; When testing circuit board 27 turns over 90 degree clockwise to position 2, the direction 8a in magnetic field is consistent with the positive dirction of the Y inductive axis of testing sample 31, vertical with X, Z inductive axis, the magnetic field excitation signal that now three inductive axis receive is respectively: X, Z axis are 0, Y-axis is+1B that the initial output valve of three inductive axis is respectively Vx2, Vy2, Vz2.When testing circuit board 27 turns over 90 degree clockwise again to position 3, the direction 8a in magnetic field is consistent with the negative direction of the X inductive axis of testing sample 31, vertical with Y, Z inductive axis, the magnetic field excitation signal that now three inductive axis receive is respectively: Y, Z axis are 0, X-axis is-1B that the initial output valve of three inductive axis is respectively Vx3, Vy3, Vz3.When testing circuit board 27 turns over 90 degree clockwise again to position 3, the direction 8a in magnetic field is consistent with the negative direction of the Y inductive axis of testing sample 31, vertical with X, Z inductive axis, the magnetic field excitation signal that now three inductive axis receive is respectively: X, Z axis are 0, Y-axis is-1B that the initial output valve of three inductive axis is respectively Vx4, Vy4, Vz4.From above-mentioned test result, can calculate the X of three axle miniature electronic compass samples 31, sensitivity and the zero offset of Y inductive axis:
X-axis sensitivity: Sx=(Vx1-Vx2)-(Vx3-Vx4) }/2B
Y-axis sensitivity: Sy=(Vy2-Vy1)-(Vy4-Vy3) }/2B
X-axis zero offset: X0=(Vx2+Vx4)/2
Y-axis zero offset: Y0=(Vy1+Vy3)/2
If zero offset X0, the Y0 of the X of the sample recording 31, Y inductive axis, or sensitivity S x, Sy exceed digital compass product specification, by connecting the signal handling equipment of testing apparatus of the present invention, to the built-in micro-control circuit of sample 31, send instruction, adjust parameter, the final output valve of zero offset and the final output valve of sensitivity are adjusted in product specification, just completed the X of electronic guide sample needle 31, test and the calibration of Y inductive axis.
The test of the Z inductive axis of three axle digital compass of the present invention is by the shaft center line 2 along main motor, to rotate testing circuit board 27,28 to realize to diverse location, as an example, Fig. 3 is the backplan of part of detecting, in fact position 5 is identical with the position 1 in Fig. 2, just viewing angle difference.Bottom surface 27b, 28b from testing circuit board 27,28, when position 5, the direction 8b in magnetic field is vertical with the Z inductive axis of testing sample 31b, 32b, 33b, 34b, take testing sample 31b as example, if magnetic field intensity is B, the magnetic field excitation signal that now Z inductive axis receives is 0, and initial output valve is Vz5, and in fact when test X, Y-axis, the zero offset of Z axis was tested.When driving counter drive shaft 26a, final drive shaft 16a is rotated counterclockwise, while making testing circuit board 27a, 27b turn over 90 degree to position 6, the direction 8b in magnetic field is consistent with the positive dirction of the Z inductive axis of testing sample 31b, be testing sample 31b positive 31a towards the positive dirction that is exactly Z inductive axis, the magnetic field excitation signal that now Z inductive axis is subject to is+1B that initial output valve is respectively Vz6; When testing circuit board 27b turns over 90 degree to position 7, the direction 8b in magnetic field is vertical with the direction of the Z inductive axis of testing sample 31b, and the magnetic field excitation signal that now Z inductive axis is subject to is 0, and initial output valve is respectively Vz7.When testing circuit board 27b turns over 90 degree to position 8, the direction 8b in magnetic field is consistent with the negative direction of the Z inductive axis of testing sample 31b, and the magnetic field excitation signal that now Z inductive axis is subject to is-1B that initial output valve is respectively Vz8.From above-mentioned test result, can calculate the sensitivity zero offset of the Z inductive axis of electronic guide sample needle 31b:
Z axis sensitivity: Sz=(Vz6-Vz5)-(Vz8-Vz7) }/2B
Z axis zero offset: Z0=(Vz5+Vz7)/2
If the zero offset Z0 of the Z inductive axis of the sample 31b recording, or sensitivity S z exceeds digital compass product specification, by connecting the signal handling equipment of testing apparatus of the present invention, to the built-in micro-control circuit of sample 31b, send instruction, adjust parameter, the final output valve of the zero offset of Z axis and the final output valve of sensitivity are adjusted in product specification.
Three X, the Y of axle miniature electronic compass sample 31 like this, have just been completed, test and the calibration of tri-inductive axis of Z.Same method can be implemented test and the calibration of testing sample 32,33,34.
Because three axle digital compass testing apparatuss 40 of the present invention are passed through its drive part 41, running part 42 and part of detecting 43 successively at right angle setting, magnetic material wherein, the drive part 41 that has disturbing magnetic field generation when rotating or locking is installed in top, own to testing apparatus 40, and the magnetic interference of the part of detecting 43 of adjacent testing apparatus can be ignored substantially, see Fig. 4, so just take full advantage of the height between test carriage, the retaining space of every occupation area of equipment and equipment and equipment room just can be accomplished minimum, sees Fig. 5; Compare the floor area of the multiple devices installation of prior art shown in Fig. 7, greatly saved the floor area that multiple devices are installed, reduced testing expense.The final drive shaft diameter of three axle miniature electronic compass testing equipments 40 of the present invention is large, can improve rotational stability, extends maintenance period; And at right angle setting has been avoided the asymmetric rotation instability problem causing of part of detecting gravity, has reduced maintenance of equipment number of times, has extended equipment life.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a testing apparatus for three axle miniature electronic compasses, is characterized in that, comprises from top to bottom vertical level is installed successively drive part, running part, part of detecting, and drive part comprises main motor, is arranged on the auxiliary motor of main motor below; Running part comprises final drive shaft, driving belt, collar bush, rotating disk, fixed mount, counter drive shaft and countershaft cover, main rotary shaft upper end is fixed on the shell of auxiliary motor, lower end is fixed on fixed mount by collar bush and the rotating disk being fixed in collar bush, the unsettled final drive shaft inside that is arranged on of driving belt, one end is connected with the turning axle of auxiliary motor, the other end is connected with counter drive shaft, and counter drive shaft is vertically fixed on main rotary shaft lower end by countershaft cover; Part of detecting comprises testing circuit board, is arranged on the testing sample on testing circuit board, and testing circuit board is arranged on the both sides end face of secondary rotation axis.
2. the testing apparatus of a kind of three axle miniature electronic compasses according to claim 1, is characterized in that, the shaft center line of main motor is mutually vertical with the shaft center line of auxiliary motor.
3. the testing apparatus of a kind of three axle miniature electronic compasses according to claim 1, is characterized in that, main rotary shaft is hollow drum.
4. the testing apparatus of a kind of three axle miniature electronic compasses according to claim 1, is characterized in that, the shaft center line of counter drive shaft and the shaft center line of auxiliary motor are parallel to each other.
5. the testing apparatus of a kind of three axle miniature electronic compasses according to claim 1, is characterized in that, main motor is fixed on motor fixed mount.
6. the method for testing of the testing apparatus based on a kind of three axle miniature electronic compasses claimed in claim 1, is characterized in that:
When testing circuit board is parallel with fixed magnetic field, first, along the shaft center line of auxiliary motor, successively rotate testing circuit board 90 degree, make the X inductive axis positive dirction of testing sample become respectively 0 degree, 90 degree, 180 degree, 270 degree with fixed magnetic field positive dirction, Y inductive axis positive dirction becomes respectively-90 degree, 0 degree, 90 degree, 180 degree with fixed magnetic field positive dirction, corresponding to all angles, the initial output valve of three inductive axis of testing sample is respectively: Vx1, Vy1, Vz1; Vx2, Vy2, Vz2; Vx3, Vy3, Vz3; Vx4, Vy4, Vz4;
By can be calculated the X of sample, initial sensitivity and the zero offset of Y inductive axis:
X-axis sensitivity: Sx=(Vx1-Vx2)-(Vx3-Vx4) }/2 times of magnetic field intensitys
Y-axis sensitivity: Sy=(Vy2-Vy1)-(Vy4-Vy3) }/2 times of magnetic field intensitys
X-axis zero offset: X0=(Vx2+Vx4)/2
Y-axis zero offset: Y0=(Vy1+Vy3)/2
The initial output valve of X per sample, Y-axis, judges whether to meet product specification;
Secondly, along the shaft center line of main motor, successively rotate testing circuit board 90 degree, make the Z inductive axis positive dirction of testing sample become-90 degree, 0 degree, 90 degree, 180 degree with fixed magnetic field positive dirction, the initial output valve of Z inductive axis is respectively: Vz5, Vz6, Vz7, Vz8;
By can be calculated initial sensitivity and the zero offset of the Z inductive axis of sample:
Z axis sensitivity: Sz=(Vz6-Vz5)-(Vz8-Vz7) }/2 times of magnetic field intensitys
Z axis zero offset: Z0=(Vz5+Vz7)/2
The initial output valve of Z axis per sample, judges whether to meet product specification.
7. the method for testing of a kind of three axle miniature electronic compasses according to claim 6, it is characterized in that, if record X, Y, zero offset X0, the Y0 of Z inductive axis, the Z0 of testing sample, or sensitivity S x, Sy, Sz exceed product specification, by the signal handling equipment of connecting test equipment, adjust the parameter of testing sample, the final output valve of zero offset and the final output valve of sensitivity are adjusted in product specification.
8. the method for testing of a kind of three axle miniature electronic compasses according to claim 6, is characterized in that, the relative angle that drive part changes testing sample and fixed magnetic field provides magnetic field excitation signal.
9. according to the method for testing of a kind of three axle miniature electronic compasses described in claim 6 or 8, it is characterized in that, fixed magnetic field is as the exciting signal source of test testing sample, the testing sample that rotates to be of main motor provides the magnetic field excitation signal of testing required Z inductive axis, and the testing sample that rotates to be of auxiliary motor provides the required X of test, the magnetic field excitation signal of Y inductive axis.
10. the method for testing of a kind of three axle miniature electronic compasses according to claim 6, is characterized in that, a plurality of testing samples can be installed on testing circuit board and test simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101633674B1 (en) * | 2015-11-26 | 2016-06-27 | 학 수 오 | three-dimensional magnetic field generating device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105265A (en) * | 1995-06-07 | 2000-08-22 | Gloor; Hans | Tilt-compensating indicator device for a compass |
| CN1833157A (en) * | 2003-07-30 | 2006-09-13 | 霍尼韦尔国际公司 | System using 2-axis magnetic sensor for 3-axis compass solution |
| US20120317825A1 (en) * | 2011-06-14 | 2012-12-20 | Pentax Ricoh Imaging Company, Ltd. | Direction determining method and apparatus using a triaxial electronic compass |
| CN203083573U (en) * | 2012-11-08 | 2013-07-24 | 中国科学院声学研究所 | Calibration device for a magnetic compass |
| CN204064306U (en) * | 2014-07-04 | 2014-12-31 | 安徽北方芯动联科微系统技术有限公司 | A kind of testing apparatus of three axle miniature electronic compasses |
-
2014
- 2014-07-04 CN CN201410317412.8A patent/CN104121898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105265A (en) * | 1995-06-07 | 2000-08-22 | Gloor; Hans | Tilt-compensating indicator device for a compass |
| CN1833157A (en) * | 2003-07-30 | 2006-09-13 | 霍尼韦尔国际公司 | System using 2-axis magnetic sensor for 3-axis compass solution |
| US20120317825A1 (en) * | 2011-06-14 | 2012-12-20 | Pentax Ricoh Imaging Company, Ltd. | Direction determining method and apparatus using a triaxial electronic compass |
| CN203083573U (en) * | 2012-11-08 | 2013-07-24 | 中国科学院声学研究所 | Calibration device for a magnetic compass |
| CN204064306U (en) * | 2014-07-04 | 2014-12-31 | 安徽北方芯动联科微系统技术有限公司 | A kind of testing apparatus of three axle miniature electronic compasses |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101633674B1 (en) * | 2015-11-26 | 2016-06-27 | 학 수 오 | three-dimensional magnetic field generating device |
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