CN105301531A - Method and device for measuring circumferential angle magnetic line based on Hall magnetic sensor - Google Patents
Method and device for measuring circumferential angle magnetic line based on Hall magnetic sensor Download PDFInfo
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- CN105301531A CN105301531A CN201510823941.XA CN201510823941A CN105301531A CN 105301531 A CN105301531 A CN 105301531A CN 201510823941 A CN201510823941 A CN 201510823941A CN 105301531 A CN105301531 A CN 105301531A
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Abstract
The invention discloses a method and device for measuring circumferential angle magnetic line based on a Hall magnetic sensor. The method is characterized by inputting an appropriate motion parameter into host computer control software according to a size index of a measured cylindrical magnet or annular magnet in order to control a triaxial magnetic sensor to motion to an appropriate position on the circumferential side surface of the magnet, wherein an instruction is transferred to a slave computer controller through serial communication; enabling the slave computer controller receiving a host computer control instruction to convert the host computer control instruction into a corresponding motor motion instruction according to internal program logic in order to control the stepping motor of a three-dimensional motion platform to motion for moving the sensor to a target position. After the senor is in place, the host computer starts a circumference rotation motor to drive the cylindrical magnet or annular magnet to rotate circumferentially. In the meantime, the slave computer controls the triaxial magnetic sensor by means of a program to detect the magnetic field at certain angle intervals. The method and the device have advantages of detecting the magnetic field in the circumference, enabling the slave computer to achieve automatic control according to the parameter set by the host computer, and being simple, stable, and highly efficient in operation.
Description
Technical field
The present invention relates to field of machinery automation, specifically, be a kind of circumference corner magnetic line of force measuring method based on Hall magnetic sensor and device, and this device can realize automatically regulating and detects position, shows towards cylindrical magnet or toroidal magnet circumference magnetic force size detection and testing result figure.
Background technology
In recent years along with the variation that electromagnetic technique is popularized and apply, there is the increasing electronic equipment with magnet at one's side in us.No matter be mobile phone, computer and the automatic washing machine, air-conditioning, video camera, micro-wave oven etc. that family commonly uses, or the equipment such as instrument, radar used by the various vehicles, cylindrical or toroidal magnet more or less is all contained in its inside, different application demands normally works under the specific influence of magnetic field of these magnets, is people's service.
For cylindrical or toroidal magnet manufacturer, they need, according to specific application direction, to choose suitable material, the magnet adopting certain production technology to produce certain specification to require, such as cylindrical or annular etc.But most important step magnetizes for shaping magnet time application-oriented, the quality of the effect that magnetizes will directly affect the quality of magnet product.
For two-stage type toroidal magnet, require that the circumference magnetic line of force of this magnet is transformed to typical sinusoidal curve rule, appearance a pair NS pole symmetrical on tour, as shown in Figure 1, Figure 3, and its magnetic field size need meet application demand in certain distance.And for multi-stage type toroidal magnet, this sentences four polar forms is example, require that the magnetic line of force around this magnet is changed to typical sinusoidal curve rule equally, but reply weighs up existing four pairs of NS levels on its tour, as shown in Figure 2, Figure 4 shows, its magnetic field size need meet application demand and in certain distance.
For specific magnetizing equipment with to magnetize technique, certain difference is existed to the effect that magnetizes of magnet circumference, especially may there is larger error magnetizing in angle.But under the occasion higher to the angle requirement that magnetizes, the existence of this error can cause bad consequence, cause certain personnel, economic dispatch loss.
Traditional circumference magnetic force detection method is generally hand-held magnetometer and detects, although this method operation detection, cost are low, detection efficiency is low, error large, can not meet the demand of production under the condition of mass production completely.Therefore, the circumference corner magnetic line of force measurement mechanism of a kind of robotization of exploitation, high-level efficiency, many application is badly in need of.
Summary of the invention
In order to solve the problem, the present invention devises a kind of circumference corner magnetic line of force measuring method based on Hall magnetic sensor and device, the motion controlling sensor is set by the kinematic parameter of host computer, the data acquisition of the direct control step motor movement of slave computer controller and Magnetic Sensor, final host computer provides the change curve of the circumference magnetic line of force.
A kind of circumference corner magnetic line of force measuring method based on Hall magnetic sensor of the present invention, is completed by following step:
Step 1: magnetic sensor is fixedly mounted on the support of triaxial movement platform.
Step 2: according to magnet detection target location, arranges three stepper motor parameters of triaxial movement platform, comprises three stepper motor movement velocitys and step-length.
Step 3: control three stepper motor motions, magnetic sensor is arrived near magnet detection target location, realizes the coarse adjustment to magnetic sensor position.
Step 4: carry out single step adjustment to the motion of three stepper motors, finely tune the position of magnetic sensor, makes magnetic sensor arrive magnet detection target location.
Step 5: control measured circle cylindrical magnet or toroidal magnet rotation, measured the circumferential magnetic field information of magnet by magnetic sensor, the magnetic field value namely on circumferential magnetic field x, y, z three direction of principal axis simultaneously.
Step 6: process is carried out to circumferential magnetic field information and obtains circumference magnetic force change curve.
For said method, a kind of circumference corner magnetic line of force measurement mechanism based on Hall magnetic sensor of the present invention, comprises sensor, circumference roll angle inspection motor, triaxial movement platform, signal acquisition module, Signal-regulated kinase, slave computer controller, motor driver module and host computer.
Wherein, sensor is triaxial magnetic field sensor, is arranged on the support of triaxial movement platform; Circumference roll angle inspection motor is fixedly mounted on the base of triaxial movement platform, and its output shaft is provided with jig, is used for fixing tested magnet.
Signal-regulated kinase for three respectively to sensor the magnetic field value surveyed on x, y, z three direction of principal axis carry out signal condition, be converted into corresponding voltage signal.
Three signal conditioning circuits export the voltage signal after signal condition to signal acquisition module, by signal acquisition module, analog to digital conversion is carried out to voltage signal and obtain corresponding digital signal, be sent to slave computer controller, undertaken storing by slave computer controller and process, and and carry out data communication between host computer; Slave computer controller is according to the steering order inputted in host computer, pulse signal and direction signal is sent to driving stepper motor module, compiled by motor drive module pulse signals and direction signal, obtain the phase control signal of stepper motor, the stepper motor controlling triaxial movement platform rotates.
The invention has the advantages that:
1, the present invention is based on circumference corner magnetic line of force measuring method and the device of Hall magnetic sensor, realize the detection in circumferentially magnetic field, according to host computer setting parameter, slave computer controls automatically, simple to operate, stable, efficient.
2, the present invention is based on circumference corner magnetic line of force measuring method and the device of Hall magnetic sensor, with Three-Dimensional Magnetic sensor for detection probe, suitably can select to detect magnetic direction according to the size cases of measured circle cylindrical magnet or toroidal magnet, magnetic field data is abundant and alternative is many.
3, the present invention is based on the circumference corner magnetic line of force measurement mechanism of Hall magnetic sensor, using host computer as operation interface, can realize the spatial movement of sensor, towards plurality of specifications cylindrical magnet or toroidal magnet, availability is high.
4, the present invention is based on the circumference corner magnetic line of force measurement mechanism of Hall magnetic sensor, host computer processing procedure is directly perceived, effectively, can display position and Magnetic Field in real time, and circumference magnetic force change curve can be provided.
5, the present invention is based on the circumference corner magnetic line of force measurement mechanism of Hall magnetic sensor, can monitor constantly field data, when working condition occurs dangerous, can suddenly stop at any time and reset, guarantee man-machine safety, extension device serviceable life, reduce costs.
Accompanying drawing explanation
Fig. 1 is bipolarity cylinder/toroidal magnet schematic diagram;
Fig. 2 is multipolarity cylinder/toroidal magnet schematic diagram;
Fig. 3 is bipolarity cylinder/toroidal magnet magnetic force change curve;
Fig. 4 is multipolarity cylinder/toroidal magnet magnetic force change curve;
Fig. 5 is the circumference corner magnetic line of force measuring method process flow diagram that the present invention is based on Hall magnetic sensor;
Fig. 6 is the circumference corner magnetic line of force measurement mechanism entire block diagram that the present invention is based on Hall magnetic sensor;
In figure:
1-sensor 2-circumference roll angle inspection motor 3-triaxial movement platform
4-Signal-regulated kinase 5-signal acquisition module 6-slave computer controller
7-motor driver module 8-host computer 9-stepper motor
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The present invention is based on the circumference corner magnetic line of force measuring method of Hall magnetic sensor, as shown in Figure 6, completed by following step:
Step 1: magnetic sensor is fixedly mounted on the support of triaxial movement platform.
Step 2: according to magnet detection target location, arranges three stepper motor parameters of triaxial movement platform, comprises three stepper motor movement velocitys and step-length.Described magnet detection target location is chosen on magnet rotation.
Step 3: control three stepper motor motions, magnetic sensor is arrived near magnet detection target location, realizes the coarse adjustment to magnetic sensor position.
Step 4: carry out single step adjustment to the motion of three stepper motors, finely tune the position of magnetic sensor, makes magnetic sensor arrive magnet detection target location.
Step 5: control measured circle cylindrical magnet or toroidal magnet rotation, measured the circumferential magnetic field information of magnet by magnetic sensor, the magnetic field value namely on circumferential magnetic field x, y, z three direction of principal axis simultaneously.
Step 6: process is carried out to circumferential magnetic field information and obtains circumference magnetic force change curve.
For said method, the present invention proposes a kind of circumference corner magnetic line of force measurement mechanism based on Hall magnetic sensor, comprise sensor 1, circumference roll angle inspection motor 2, triaxial movement platform 3, Signal-regulated kinase 5, signal acquisition module 4, slave computer controller 6, motor driver module 7 and host computer 8, as shown in Figure 6.
Wherein, sensor 1 is triaxial magnetic field sensor, is arranged on the support of triaxial movement platform 3.Circumference roll angle inspection motor 2 is fixedly mounted on the base of triaxial movement platform 3, and its output shaft is provided with jig, is used for gripping measured circle cylindrical magnet or toroidal magnet by jig.Thus, the mobile control of sensor 1 on space x, y, z three axle can be realized by three stepper motors 9 of triaxial movement platform 3, the rotation in tested magnet axial can be controlled by circumference roll angle inspection motor 2, finally realize the detection of sensor 1 to magnetic field value on tested magnet circumferential magnetic field x, y, z three direction of principal axis.
Signal-regulated kinase 5 is three, and input channel connects with the signal output part of three detection probe of sensor 1 respectively.Respectively signal condition is carried out to the magnetic field value on x, y, z three direction of principal axis by three Signal-regulated kinase 5, be converted into corresponding voltage signal.
The output channel of three signal conditioning circuits 5 is connected with signal acquisition module 4 input end respectively, export the voltage signal after signal condition to signal acquisition module 4, carry out analog to digital conversion by signal acquisition module 4 pairs of voltage signals and obtain corresponding digital signal.
Slave computer controller 6 by STM32F series monolithic as processor; The output terminal of signal acquisition module is connected with the GPIO of STM32F series monolithic, digital signal after conversion is input in slave computer controller 6, undertaken storing and process by slave computer, obtain the magnetic induction line information on three axles that sensor records, and be sent to host computer 8.The PWM lead-out terminal of slave computer controller 6 is connected with the signal control end of four motor drive modules 7, according to the steering order that host computer sends, sends pulse signal and direction signal to driving stepper motor module 7.
The output terminal of four motor drive modules 7 is directly connected with the input end of three stepper motors 9 and circumference roll angle inspection motor 2 respectively, being used for pulse signals and direction signal compiles, obtain the phase control signal of three stepper motors 9 and circumference roll angle inspection motor 2, be sent to the stepper motor of triaxial movement platform 3, drive three stepper motors 9 and circumference roll angle inspection motor 2 to complete corresponding rotation.
Host computer 8 is connected with the corresponding signal terminal of slave computer controller 6 by serial ports, for completing the data communication between host computer 8 and slave computer controller 6.
In the present invention host computer 8 have by communication setting module, the parameter of electric machine, module is set, target location arranges module, single step travelling control module, the anxious control section stopping module, circumference roll angle inspection module, reseting module, data dump module and result display module and form.
Wherein, communication setting module is used for arranging communication protocol between host computer 8 and slave computer controller 6, comprises the selection of signal terminal to slave computer controller 6 and communication baud rate, and the open and close of host computer 8 serial ports control.The parameter of electric machine arranges the kinematic parameter that module is used for arranging sensor 1, comprises control step motor 9 movement velocity and the step-length of x, y, z three axle in triaxial movement platform 3.Target location arranges the target location that module is used for arranging sensor 1.Single step travelling control module is used for arranging respectively the step-length of the control step motor 9 of x, y, z three axle in triaxial movement platform 3, carries out single step adjustment to the position of sensor x, y, z three axle.Circumference roll angle inspection module controls with to circumference roll angle inspection motor 2, and the rotation realizing tested magnet controls, and controls sensor 1 to the detection of the tested magnet circumference magnetic line of force simultaneously.Suddenly stop module when being used for occurring in testing process that accident etc. is unexpected, controlling rapidly three stepper motors 9 in triaxial movement platform 3 quits work, termination detection process; Realize steering order in slave computer controller by reseting module to reset simultaneously, ensure man-machine safety, extension device serviceable life, reduce costs.Data dump module is used for removing above-mentioned set parameter.When circumference roll angle inspection completes, circumferential magnetic field information is stored by host computer 8, is processed further by host computer 8, draws testing result, shown by result display module with the form of circumference magnetic force change curve.
Claims (4)
1., based on a circumference corner magnetic line of force measuring method for Hall magnetic sensor, it is characterized in that: completed by following step:
Step 1: magnetic sensor is fixedly mounted on the support of triaxial movement platform;
Step 2: according to magnet detection target location, arranges three stepper motor parameters of triaxial movement platform, comprises three stepper motor movement velocitys and step-length;
Step 3: control three stepper motor motions, magnetic sensor is arrived near magnet detection target location, realizes the coarse adjustment to magnetic sensor position;
Step 4: carry out single step adjustment to the motion of three stepper motors, finely tune the position of magnetic sensor, makes magnetic sensor arrive magnet detection target location;
Step 5: control measured circle cylindrical magnet or toroidal magnet rotation, measured the circumferential magnetic field information of magnet by magnetic sensor, the magnetic field value namely on circumferential magnetic field x, y, z three direction of principal axis simultaneously;
Step 6: process is carried out to circumferential magnetic field information and obtains circumference magnetic force change curve.
2. based on a circumference corner magnetic line of force measuring method for Hall magnetic sensor, it is characterized in that: comprise sensor, circumference roll angle inspection motor, triaxial movement platform, signal acquisition module, Signal-regulated kinase, slave computer controller, motor driver module and host computer;
Wherein, sensor is triaxial magnetic field sensor, is arranged on the support of triaxial movement platform; Circumference roll angle inspection motor is fixedly mounted on the base of triaxial movement platform, and its output shaft is provided with jig, is used for fixing tested magnet;
Signal-regulated kinase for three respectively to sensor the magnetic field value surveyed on x, y, z three direction of principal axis carry out signal condition, be converted into corresponding voltage signal;
Three signal conditioning circuits export the voltage signal after signal condition to signal acquisition module, by signal acquisition module, analog to digital conversion is carried out to voltage signal and obtain corresponding digital signal, be sent to slave computer controller, undertaken storing by slave computer controller and process, and and carry out data communication between host computer; Slave computer controller is according to the steering order inputted in host computer, pulse signal and direction signal is sent to driving stepper motor module, compiled by motor drive module pulse signals and direction signal, obtain the phase control signal of stepper motor, the stepper motor controlling triaxial movement platform rotates.
3. a kind of circumference corner magnetic line of force measuring method based on Hall magnetic sensor as shown in claim 2, is characterized in that: described slave computer controller by STM32F series monolithic as processor.
4. a kind of circumference corner magnetic line of force measuring method based on Hall magnetic sensor as shown in claim 2, is characterized in that: described host computer has communication setting module, the parameter of electric machine arranges module, target location arranges module, single step travelling control module, the anxious control section stopping module, circumference roll angle inspection module, reseting module, data dump module and result display module and form;
Wherein, communication setting module is used for arranging communication protocol between host computer and slave computer, comprises the selection of signal terminal to slave computer controller and communication baud rate, and the open and close of host computer serial ports control; The parameter of electric machine arranges the kinematic parameter that module is used for arranging sensor; Target location arranges the target location that module is used for arranging sensor; Single step travelling control module is used for carrying out single step adjustment to the position of sensor x, y, z three axle; Circumference roll angle inspection module controls with to circumference roll angle inspection motor, controls magnetic sensor to the detection of the tested magnet circumference magnetic line of force simultaneously; Suddenly stop module to be used for quitting work at control step motor; The steering order that reseting module is used for realizing in slave computer controller resets; Result display module is used for showing testing result.
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| CN201510823941.XA CN105301531A (en) | 2015-11-24 | 2015-11-24 | Method and device for measuring circumferential angle magnetic line based on Hall magnetic sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108732519A (en) * | 2018-03-28 | 2018-11-02 | 天津工业大学 | Wireless charging electromagnetic field Three-Dimensional Magnetic measurement method and device |
| CN110500946A (en) * | 2019-09-06 | 2019-11-26 | 安徽中科智能感知产业技术研究院有限责任公司 | A kind of rotary part rotation radian detection method based on three axle magnetometer |
| CN112162227A (en) * | 2020-09-22 | 2021-01-01 | 苏州微测电子有限公司 | Automatic test system and test method for magnetic induction sensor |
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| CN110500946A (en) * | 2019-09-06 | 2019-11-26 | 安徽中科智能感知产业技术研究院有限责任公司 | A kind of rotary part rotation radian detection method based on three axle magnetometer |
| CN112162227A (en) * | 2020-09-22 | 2021-01-01 | 苏州微测电子有限公司 | Automatic test system and test method for magnetic induction sensor |
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Effective date of registration: 20170815 Address after: 100094, Beijing Yongfeng Haidian District industrial base, No. 7 Ze Ze North Road Hospital Applicant after: Beijing Ding century superconductor technology Co., Ltd. Address before: 100206 Beijing Haidian District Shahe second top Factory No. 4 building, 3 floor Applicant before: Beijing Dingchen Super Conductor Technology Co., Ltd. |
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