CN206209086U - A kind of orthogonal calibration jig of 3D Magnetic Sensors - Google Patents
A kind of orthogonal calibration jig of 3D Magnetic Sensors Download PDFInfo
- Publication number
- CN206209086U CN206209086U CN201621092348.9U CN201621092348U CN206209086U CN 206209086 U CN206209086 U CN 206209086U CN 201621092348 U CN201621092348 U CN 201621092348U CN 206209086 U CN206209086 U CN 206209086U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- calibration jig
- sample clamp
- magnetic sensors
- sensor chip
- Prior art date
- 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.)
- Active
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Abstract
The utility model discloses a kind of orthogonal calibration jig of 3D Magnetic Sensors, including base, sample clamp and four permanent magnets, four angles of base are provided with the mounting hole of formed objects, permanent magnet is corresponded with mounting hole, the bottom of permanent magnet is vertically installed in mounting hole, the middle of base offers the detent for installing sample clamp, sample clamp includes two aluminum fixture blocks and a plateau, aluminum fixture block is symmetricly set on plateau both sides and is fixedly connected, one is provided with plateau and holds groove, groove is held positioned at the middle of sample clamp, sensor chip is arranged on and holds on groove, sample clamp can be arranged at detent in different directions, and the magnetic direction of permanent magnet generation is parallel with one of central shaft of sensor chip.The utility model can simply and easily fix magnetic resistance sensor chip, high precision, it is not necessary to increase magnetic field outward, and simple structure is conveniently adjusted, and easy to operate, low cost, operation rule is simple.
Description
Technical field
The utility model is related to detection technique field, and in particular to a kind of orthogonal calibration jig of 3D Magnetic Sensors.
Background technology
Electronic product needs to install magnet in mounting groove, and traditional mode is by the way that magnet manually is attached into installation
In groove, however, prolonged manual work can cause that people is more tired, reduces operating efficiency.Further, since product is to magnet
NS poles clearly require, it is and artificial during installation, be hard to tell magnet polarities, easy setup error, what is installed
During, the situation not in place or excessive of installation is easily caused, influence the quality of product.
Usually, the device for calibration sensor orthogonality includes complicated sample clamp, in identical magnetic
Angle or in three axle electromagnet turn-sensitive device of the field according to setting.For the fixture ordinary circumstance lower body of turn-sensitive device
The big also costliness of product.If required calibration magnetic field is very big, three axle electromagnet volumes are big also expensive, and are also not easy to adjust
Whole and calibration.MDT23xx series is highfield sensor, accordingly, it would be desirable to the magnetic field calibrated 10,50 and more than 100Oe is strong
Degree.
In the existing tool for turn-sensitive device, can with movable sensor, the tool have three rotary shafts and
Magnetometer and inclinometer, however, the tool can only be limited in earth's magnetic field.
In the prior art, Magnetic Sensor tool can be with shifting magnetic field, using a Three exe Helmholtz coil system, so
And this is a scheme for costliness, because only magnet must spend hundreds of dollars, and also require to provide three electric currents and one
Individual good reponse system and monitoring system.Additionally, the system can't produce the magnetic field more than 50Oe.
Utility model content
In view of the above problems, in order to overcome the above-mentioned technical problem for running into the prior art, the purpose of this utility model to be
A kind of orthogonal calibration jig of 3D Magnetic Sensors is provided, sensor chip can be simply and easily fixed.
A kind of orthogonal calibration jig of 3D Magnetic Sensors that the utility model is provided, including base, sample clamp and four
Permanent magnet, four angles of described base are provided with the mounting hole of formed objects, a pair of four permanent magnets and the mounting hole 1
Should, the bottom of described permanent magnet is vertically installed in the mounting hole, and the middle of described base is offered for installing
The detent of sample clamp, described sample clamp includes two aluminum fixture blocks and a plateau, described two aluminum fixture blocks
Plateau both sides are symmetricly set on, the plateau is fixedly connected with two aluminum fixture blocks, one are provided with plateau and hold groove, it is described to hold groove position
In the middle of sample clamp, sensor chip is arranged on and holds on groove, and described sensor chip is three-axis sensor chip, institute
State sample clamp can in different directions be arranged on the detent at, and the permanent magnet produce magnetic direction with pass
One of central shaft of sensor chip is parallel.
Preferably, also including top frame, described permanent magnet is arranged between top frame and base.
Preferably, described orthogonal calibration jig also includes data acquisition device and data processing equipment, described number
The voltage output of the sensor chip for being used to gather described according to harvester, and described voltage output is transferred to the data
Processing unit.
Preferably, described orthogonal calibration jig also includes electric supply installation, and the electric supply installation is the sensor chip
Power supply.
Preferably, the length, width and height of described calibration jig are 25cm.
Preferably, described top frame middle setting has rectangle resigning hole, and described rectangle resigning hole is more than sample
The cross-sectional sizes of fixture.
Preferably, described permanent magnet can be rotated, and formed uniform magnetic field and adjusted the size in magnetic field.
Further, the rotation direction of any one permanent magnet and adjacent permanent magnet rotation direction conversely, with it is diagonal
The rotation direction of the permanent magnet on line is identical.
Preferably, the angular range of described permanent magnet rotation is 0~180 degree.
Preferably, the angle of described permanent magnet rotation is 10 degree.
Compared with prior art, a kind of orthogonal calibration jig of 3D Magnetic Sensors that the utility model is provided, can obtain
Following effect：The utility model can simply and easily fix magnetic resistance sensor chip, high precision, it is not necessary to increase magnetic outward
, simple structure, convenient regulation, easy to operate, low cost, operation rule is simple.
Brief description of the drawings
As part of the specification, following Figure of description be used for explain the technical solution of the utility model, for this
For the those of ordinary skill of field, on the premise of not paying creative work, other can be obtained attached by the following drawings
Figure.
Fig. 1 is the schematic diagram of the orthogonal calibration jig of 3D Magnetic Sensors of the present utility model；
Fig. 2 is the schematic diagram of sample clamp of the present utility model；
Fig. 3 produces the schematic diagram of uniform magnetic field for the permanent magnet of utility model in center；
Fig. 4 (a)-Fig. 4 (f) is the schematic diagram of sample clamp position；
Fig. 5 is the flow chart for calculating sample clamp.
Wherein, reference is corresponded in figure：1- bases, 2- permanent magnets, 3- sample clamps, 31- aluminum fixture blocks, 32- is high
Platform, 33- sensor chips, 4- detents, 5- tops frame.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.
Embodiment：Fig. 1 is the schematic diagram of the orthogonal calibration jig of 3D Magnetic Sensors of the present utility model, as illustrated, this
A kind of orthogonal calibration jig of 3D Magnetic Sensors of utility model, including base 1, sample clamp 3 and four permanent magnets 2, it is described
Base is a cube, and the upper surface of base is square, and four angles of described base 1 are provided with the installation of formed objects
Hole, four permanent magnets 2 and the mounting hole are corresponded, and the permanent magnet 2 is preferably cylinder, the bottom of described permanent magnet 2
End is vertically installed in the mounting hole, and the middle of described base 1 offers the detent for installing sample clamp 3
4, described sample clamp 3 includes two aluminum fixture blocks 31 and a plateau 32, and described two aluminum fixture blocks 31 are symmetricly set on
The both sides of plateau 32, the plateau 32 is fixedly connected with two aluminum fixture blocks 31, one is provided with plateau 32 and holds groove, and the groove that holds is located at
The middle of sample clamp, sensor chip 33 is arranged on and holds on groove, and described sensor chip 33 is three-axis sensor chip,
The sample clamp 3 can be arranged at the detent 4 in different directions, and the magnetic field side that the permanent magnet 2 is produced
To parallel with one of central shaft of sensor chip 33.Described tool also includes top frame 5, at described top
Four angles of frame 5 be also correspondingly arranged four with the mounting hole size identical hole, for fixedly mounting the permanent magnet 2
Top, described permanent magnet 2 is set between top frame 5 and base 1, the described middle setting of top frame 5 has
Rectangle resigning hole, described cross-sectional sizes of the rectangle resigning hole more than sample clamp 3, i.e., described top frame 5 will not be in institute
State and projection is produced at sample clamp 3.
Described orthogonal calibration jig also includes data acquisition device and data processing equipment, described data acquisition dress
The voltage output for gathering described sensor chip is put, and described voltage output is transferred to the data processing dress
Put.
Described orthogonal calibration jig also includes electric supply installation, and the electric supply installation is powered for the sensor chip.
The length, width and height size of described calibration jig is 25cm.
Described permanent magnet 2 can be rotated, to form uniform magnetic field and adjust the size in magnetic field.
Further, the rotation direction of four permanent magnets 2 is to be rotated clockwise in the mounting hole or turned counterclockwise
It is dynamic, specially：The rotation direction of the rotation direction of any one permanent magnet and adjacent permanent magnet conversely, and with diagonal on
The rotation direction of permanent magnet is identical.
The angular range of the described rotation of permanent magnet 2 is 0~180 degree, and in the range of this, described permanent magnet 2 can be with
According to Arbitrary Rotation, the angle of the described rotation of permanent magnet 2 is preferably 10 degree.Fig. 3 is the permanent magnet of utility model in
The schematic diagram of uniform magnetic field is produced in centre, and referring to Fig. 3 iting can be seen from, the permanent magnet in upper left corner rotation -10 is spent, and the permanent magnet in the upper right corner rotates+
10 degree, lower left corner permanent magnet rotation+10 is spent, and the permanent magnet rotation -10 in the lower right corner is spent.
Wherein, sensor is located at the centre of cylinder-shaped magnet, and cylinder-shaped magnet generates magnetic field in the position of centre.
The size in magnetic field can be adjusted so that in the maximum of linear magnetic field range, the utility model can be produced more than 200Oe in magnetic field
Magnetic field.
Fig. 3 is that magnet produces the schematic diagram of uniform magnetic field in center, and cylinder-shaped magnet array is produced in a big region
Uniform magnetic field, and this uniform magnetic field has the gradient of very little, and the magnet of these cross magnetizations is produced in middle section
One uniform magnetic field.These magnet synchronous rotaries can change the size of central magnetic field, however, the utility model at present
In, magnet does not do synchronous rotary.
Fig. 4 (a)-Fig. 4 (f) is the schematic diagram of sample clamp position, and sample clamp can be rotated by six positions, so
Required calibration data can be obtained, wherein, in the case of being known for the skew and sensitivity of each axle, it is only necessary to
Three calibration data of position.Sample clamp passes through accurately to process the magnetic field produced in centre relative to cylindrical magnet iron,
Accurately installed with sensor.Fig. 2 is the schematic diagram of sample clamp of the present utility model, and wherein the size of sample clamp is length, width and height
7cm is, sensor chip 33 can rotate to arbitrary angle in geometric center, and sample clamp 3 can respectively towards six sides
To in the detent 4, shown in specific 6 directions such as Fig. 4 (a)-Fig. 4 (f), Fig. 4 (a)-Fig. 4 (f) sets respectively
It is set to position 1-6, the position of the sample clamp 3 in Fig. 4 (b) overturns 90 ° and obtains to the right by the sample clamp 3 in Fig. 4 (a), Fig. 4
D the position of the sample clamp 3 in () overturns 90 ° and obtains to the left by the sample clamp 3 in Fig. 4 (a), the sample clamp in Fig. 4 (e)
3 position horizontally rotates 90 ° and obtains by the sample clamp 3 in Fig. 4 (a), and the position of the sample clamp 3 in Fig. 4 (c) is by Fig. 4 (a)
In sample clamp 3 horizontally rotate 180 ° and obtain, the position of the sample clamp 3 in Fig. 4 (f) is by the sample clamp 3 in Fig. 4 (a)
Horizontally rotate 270 ° to obtain, wherein one of them of sensing direction of principal axis is oriented parallel to the magnetic direction that the permanent magnet is produced,
Sensor is arranged on and holds on groove, and sensor chip, in two cubical geometric centers of aluminum, the sensing direction of principal axis is
Be the central axis direction of sensor chip 33, for a cuboid, including through its center point X, Y, Z axis direction
Three central shafts, one of direction said herein is then wherein one direction of central shaft parallel with magnetic direction.
Fig. 5 is the flow chart for calculating sample clamp, and orthogonal calibration jig of the present utility model also includes data acquisition dress
Put with data processing equipment and electric supply installation, the voltage of the described sensor chip of described data acquisition device collection is defeated
Go out, by described voltage output be transferred to the data processing equipment and by the data storage after treatment in a computer.It is described
Electric supply installation is powered for the sensor chip.The step of specific calculating sample clamp, is as follows：The position of sample clamp is set first
Put, be defined as i, voltmeter reads three magnitudes of voltage of axial direction respectively, and sample clamp rotation six direction, voltmeter is read respectively
Number, wherein, the magnitude of voltage in each direction of voltmeter reading is expressed as：
Vx(0,0,90) Vx(0,0,0) Vx(180,0,90) Vx(0,0,180) Vx(0,90,0) Vx(0,270,0)
Vy(0,0,90) Vy(0,0,0) Vy(180,0,90) Vy(0,0,180) Vy(0,90,0) Vy(0,270,0)
Vz(0,0,90), Vz(0,0,0), Vz(180,0,90), Vz(0,0,180), Vz(0,90,0), Vz(0,270,0)
The wrong magnetic field of three axles is respectively defined asThe magnetic field of the correction of three axles point
It is not defined as
Defining orthogonal matrix is：
User calculates the magnetic field size of correction according to orthogonal Error Matrix：
Algorithm for calculating orthogonal Error Matrix has been tested, and works good.This algorithm is deposited with conventional art
In very big difference, conventional art needs to set the numerical value of multiple points on an ellipsoid.And the utility model can use the last of the twelve Earthly Branches
Mu Huozi coils or permanent magnet array, and the identical result to be accomplished of conventional art can be reached.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment for being obtained, belongs to the scope of the utility model protection.Although the utility model just side of being preferable to carry out
Formula is illustrated and has been described, it is understood by those skilled in the art that without departing from claim of the present utility model
Limited range, can carry out variations and modifications to the utility model.
Claims (10)
1. a kind of orthogonal calibration jig of 3D Magnetic Sensors, it is characterised in that：Including base, sample clamp and four permanent magnets,
Four angles of described base are provided with the mounting hole of formed objects, and four permanent magnets are corresponded with the mounting hole, described
The bottom of permanent magnet be vertically installed in the mounting hole, the middle of described base is offered for installing sample clamp
Detent, described sample clamp includes two aluminum fixture blocks and a plateau, and described two aluminum fixture blocks are symmetrical arranged
In plateau both sides, the plateau is fixedly connected with two aluminum fixture blocks, one is provided with plateau and holds groove, and the groove that holds is positioned at specimen holder
The middle of tool, sensor chip is arranged on and holds on groove, and described sensor chip is three-axis sensor chip, the specimen holder
Tool can be arranged at the detent in different directions, and the magnetic direction and sensor chip that the permanent magnet is produced
One of central shaft it is parallel.
2. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 1, it is characterised in that：Also include top frame
Shape frame, described permanent magnet is arranged between top frame and base.
3. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 1, it is characterised in that：Described orthogonal school
Quasi- tool also includes data acquisition device and data processing equipment, and described data acquisition device is used to gather described sensing
The voltage output of device chip, and described voltage output is transferred to the data processing equipment.
4. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 1, it is characterised in that：Described orthogonal school
Quasi- tool also includes electric supply installation, and the electric supply installation is powered for the sensor chip.
5. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 1, it is characterised in that：Described calibration is controlled
The length, width and height of tool are 25cm.
6. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 2, it is characterised in that：Described top frame
Shape frame middle setting has rectangle resigning hole, described cross-sectional sizes of the rectangle resigning hole more than sample clamp.
7. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 1, it is characterised in that：Described permanent magnet
Can rotate, form uniform magnetic field and adjust the size in magnetic field.
8. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 7, it is characterised in that：Any one permanent magnetism
The rotation direction of the rotation direction of body and adjacent permanent magnet is conversely, identical with the rotation direction of the permanent magnet on diagonal.
9. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 7, it is characterised in that：Described permanent magnet
The angular range of rotation is 0~180 degree.
10. the orthogonal calibration jig of a kind of 3D Magnetic Sensors according to claim 9, it is characterised in that：Described permanent magnetism
The angle of body rotation is 10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621092348.9U CN206209086U (en) | 2016-09-29 | 2016-09-29 | A kind of orthogonal calibration jig of 3D Magnetic Sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621092348.9U CN206209086U (en) | 2016-09-29 | 2016-09-29 | A kind of orthogonal calibration jig of 3D Magnetic Sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209086U true CN206209086U (en) | 2017-05-31 |
Family
ID=58761602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621092348.9U Active CN206209086U (en) | 2016-09-29 | 2016-09-29 | A kind of orthogonal calibration jig of 3D Magnetic Sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206209086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655092A (en) * | 2018-12-26 | 2019-04-19 | 北京诺亦腾科技有限公司 | A kind of transducer calibration jig |
| CN109839610A (en) * | 2018-12-27 | 2019-06-04 | 中国计量科学研究院 | Helmholtz coil constant exchange calibration system and method based on orthogonality principle |
-
2016
- 2016-09-29 CN CN201621092348.9U patent/CN206209086U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655092A (en) * | 2018-12-26 | 2019-04-19 | 北京诺亦腾科技有限公司 | A kind of transducer calibration jig |
| CN109655092B (en) * | 2018-12-26 | 2020-12-04 | 北京诺亦腾科技有限公司 | Sensor calibration jig |
| CN109839610A (en) * | 2018-12-27 | 2019-06-04 | 中国计量科学研究院 | Helmholtz coil constant exchange calibration system and method based on orthogonality principle |
| CN109839610B (en) * | 2018-12-27 | 2021-02-12 | 中国计量科学研究院 | Helmholtz coil constant alternating current calibration system and method based on orthogonality principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100588983C (en) | Three-dimension measuring apparatus and method for space magnetic field of minitype permanent-magnet | |
| CN102607405A (en) | Rotation angle sensor | |
| EP3315983B1 (en) | Calibration tool for calibrating a magnetic sensor | |
| CN206209086U (en) | A kind of orthogonal calibration jig of 3D Magnetic Sensors | |
| CN112130217B (en) | System and method for electrically detecting included angle between geometric axis and magnetic axis of coil vector magnetometer | |
| CN104062607B (en) | Full-tensor magnetic field gradiometer based on giant magnetic impedance effect | |
| US10215550B2 (en) | Methods and apparatus for magnetic sensors having highly uniform magnetic fields | |
| CN108204785A (en) | Magnetic angular sensor device and operating method | |
| CN109324300A (en) | Magnetic field measuring device, test macro and the test method of magnet spaces | |
| CN107390155A (en) | A kind of Magnetic Sensor calibrating installation and method | |
| CN107830834A (en) | A kind of high cubing of gasoline engine crankshaft taper | |
| CN106525079A (en) | Three-axis magnetic sensor calibration method and device | |
| CN108414819A (en) | A kind of passive current sensing means of piezoelectric type for duplex wire and method | |
| CN104375102A (en) | Method for quick measurement of remnant magnetic moment and inductive magnetic moment of tested object in terrestrial magnetic field | |
| CN203551761U (en) | Device for calibrating superconducting quantum interference device triaxial magnetometer | |
| CN100489561C (en) | Educational geomagnetic field measurement experimental apparatus | |
| CN106526333B (en) | A method of obtaining permanent magnet synchronous motor quadrature axis and d-axis inductance | |
| CN102053232A (en) | Device and method for measuring magnet angle deviation | |
| US9970972B2 (en) | Device for measuring an electric field in a conducting medium | |
| CN109116274A (en) | A kind of four-degree-of-freedom measurement of magnetic field device | |
| US2491736A (en) | Magnetic pickup device and method of balancing the device | |
| CN1441230A (en) | Magnetically inducing physical quantity sensor | |
| CN204462361U (en) | A kind of rock and ore sample magnetic parameters device | |
| CN206574336U (en) | A kind of three-line pendulum for adapting to rotary inertia more | |
| CN203798997U (en) | Triaxial magnetic sensor probe capable of adjusting orthogonality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |