CN206073909U - A kind of angular transducer with zero correction function - Google Patents
A kind of angular transducer with zero correction function Download PDFInfo
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- CN206073909U CN206073909U CN201620893188.1U CN201620893188U CN206073909U CN 206073909 U CN206073909 U CN 206073909U CN 201620893188 U CN201620893188 U CN 201620893188U CN 206073909 U CN206073909 U CN 206073909U
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- angle
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- permanent magnet
- bit
- correction function
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Abstract
The utility model proposes a kind of angular transducer that angular surveying is carried out with zero correction function and using permanent magnetic field.The angle measurement system of the sensor includes：Non-volatile digital storage unit is used to store zero-bit Data, zero-bit configuration switch and switch detection circuit for determining zero-bit angle value, digital computing unit for calculating angle and deducting zero-bit angle value, angle signal output interface.With pulse-width modulation circuit, angle signal output adopts pulse width modulated wave, duty cycle to represent angle value.Angularly measurement part is installed in a printed circuit board for digital storage unit, switch detection circuit, digital computing unit.When angle of assembling sensor is on permagnetic synchronous motor, rotor is arranged into zero-bit, the angle now measured is rotor zero-bit angle, close zero-bit configuration switch, the angle value is stored in into digital storage unit, the angle value of output is equal to the zero value that the angle value of actual measurement deducts storage, so can realize the null adjustment of motor.Actual corner is adjusted and is changed to be configured using digital processing system, greatly reduce the null adjustment time.
Description
Technical field
This utility model is related to a kind of angular transducer, particularly a kind of to have zero correction function and adopt permanent magnetic field
Carry out the angular transducer of angular surveying.
Background technology
In recent years, the application of permagnetic synchronous motor is more and more extensive, the application particularly in the electric automobile field.In electricity
In the application of motor-car, the angle control precision of permagnetic synchronous motor require it is much lower compared to servo-control system, but to into
This requirement is much higher.The relative rotation by adjusting angular transducer and rotor is needed in motor production process, so as to
Rotor zero-bit is found, the process needs to adjust time consuming back and forth.The rotor angle sensor commonly used in servo-control system
For photoelectric code disk and rotary transformer, but both costs are all higher.
The content of the invention
1）The technical problem of solution
Further to reduce the manufacturing cost and installation time of permagnetic synchronous motor angular transducer, the present invention devises one
Plant with zero correction function and carry out using permanent magnetic field the angular transducer of angular surveying.
2）Technical scheme
The utility model proposes a kind of angle that angular surveying is carried out with zero correction function and using permanent magnetic field
Sensor.The angle measurement system of the sensor includes：Non-volatile digital storage unit is set for storing zero-bit Data, zero-bit
Fixed switch and switch detection circuit are used to determine zero-bit angle value, digital computing unit for calculating angle and deducting zero-bit angle
Value, angle signal output interface.With pulse-width modulation circuit, angle signal output adopts pulse width modulated wave, duty cycle to represent angle
Angle value.Angularly measurement part is installed on a printed circuit board for digital storage unit, switch detection circuit, digital computing unit
On.When angle of assembling sensor is on permagnetic synchronous motor, rotor is arranged into zero-bit, the angle now measured is rotor
Zero-bit angle, closes zero-bit configuration switch, and the angle value is stored in digital storage unit, and the angle value of output is equal to reality
The angle value of measurement deducts the zero value of storage, so can realize the null adjustment of motor.Actual corner is adjusted and is changed
It is to be configured using digital processing system, greatly reduces the null adjustment time.
Part for measuring angle also includes a permanent magnet, and the permanent magnet is fixed in the rotating shaft of tested gig,
Rotate with tested gig, permanent magnet central shaft is overlapped with the rotating shaft of tested gig；The magnetizing direction of the permanent magnet with it is tested
The rotating shaft of gig is vertical；Also include two linear magnetic field ionization meter parts, the two linear magnetic field ionization meter parts are solid
On on-rotatably moving part, it is arranged near permanent magnet central shaft；The magnetic field of the two linear magnetic field ionization meter part measurements
Direction is mutually perpendicular to；The magnetic direction of the two linear magnetic field ionization meter part measurements is all hung down with the rotating shaft of tested gig
Directly.The permanent magnet is cylindric, and one end that there is a circular pit, permanent magnet cylinder the end of tested gig rotating shaft is embedded in
The pit.It is fixed by gluing between the rotating shaft of permanent magnet and tested gig.The rotating shaft of permanent magnet and tested gig
Between fastened by non-magnetic screw.Permanent magnet is neodymium iron boron or ferrite permanent-magnet materials.
3）Beneficial effect
Permanent magnetism bulk measurement angle of rotor is adopted in this utility model, cost, and the side by digital processing is significantly reduced
Formula, improves the set-up time of permagnetic synchronous motor angular transducer.
Description of the drawings
Fig. 1 is sensor measurement part composition schematic diagram, and Fig. 2 is dimpled rotating shaft schematic diagram, and Fig. 3 is to install permanent magnet
Rotating shaft afterwards, Fig. 4 are angular transducer instrumentation plan.
1- rotating shafts, 2- pits, 3- permanent magnets, 4- printed circuit board (PCB)s, 5- parts, 6- magnetic field of permanent magnet
Specific embodiment
The utility model proposes a kind of angle that angular surveying is carried out with zero correction function and using permanent magnetic field
Sensor.The angle measurement system of the sensor includes：Non-volatile digital storage unit is set for storing zero-bit Data, zero-bit
Fixed switch and switch detection circuit are used to determine zero-bit angle value, digital computing unit for calculating angle and deducting zero-bit angle
Value, angle signal output interface.With pulse-width modulation circuit, angle signal output adopts pulse width modulated wave, duty cycle to represent angle
Angle value.Angularly measurement part is installed on a printed circuit board for digital storage unit, switch detection circuit, digital computing unit
On 4.When angle of assembling sensor is on permagnetic synchronous motor, rotor is arranged into zero-bit, the angle now measured as turns
Sub- zero-bit angle, closes zero-bit configuration switch, and the angle value is stored in digital storage unit, and the angle value of output is equal in fact
The angle value of border measurement deducts the zero value of storage, so can realize the null adjustment of motor.Actual corner is adjusted
It is changed to be configured using digital processing system, greatly reduces the null adjustment time.
Part for measuring angle also includes a permanent magnet 3, and the permanent magnet 3 is fixed on the rotating shaft 1 of tested gig
On, rotating with tested gig, 3 central shaft of permanent magnet is overlapped with the rotating shaft 1 of tested gig；The magnetizing direction of the permanent magnet 3
It is vertical with the rotating shaft 1 of tested gig；Also include two linear magnetic field ionization meter parts, the two linear magnetic field ionization meters
Part is fixed on on-rotatably moving part, is arranged near 3 central shaft of permanent magnet；The two linear magnetic field ionization meter parts are measured
Magnetic direction be mutually perpendicular to；The magnetic direction of the two linear magnetic field ionization meter parts measurement is all turned with tested gig
Axle is vertical.The permanent magnet 3 is cylindric, and there is a circular pit 2 end of tested gig rotating shaft, 3 cylinder of permanent magnet
One end is embedded in the pit 2.It is fixed by gluing between the rotating shaft 1 of permanent magnet 3 and tested gig.Permanent magnet 3 with it is tested
Fastened by non-magnetic screw between the rotating shaft 1 of gig.Permanent magnet 3 is neodymium iron boron or ferrite permanent-magnet materials.
Claims (8)
1. a kind of angular transducer with zero correction function, it is characterised in that：The angle measurement system bag of the sensor
Include：Non-volatile digital storage unit be used for store zero-bit Data, zero-bit configuration switch and switch detection circuit for determine zero
Parallactic angle angle value, digital computing unit are for calculating angle and deducting zero-bit angle value, angle signal output interface, for measurement angle
The part of degree.
2. a kind of angular transducer with zero correction function according to claim 1, it is characterised in that：Adjust with pulsewidth
Circuit processed, angle signal output adopt pulse width modulated wave, duty cycle to represent angle value.
3. a kind of angular transducer with zero correction function according to claim 1, it is characterised in that：Stored digital list
Angularly measurement part is installed in a printed circuit board for unit, switch detection circuit, digital computing unit.
4. a kind of angular transducer with zero correction function according to claim 1, it is characterised in that：For measurement angle
The part of degree also includes a permanent magnet, and the permanent magnet is fixed in the rotating shaft of tested gig, is rotated with tested gig, forever
Magnet center axle is overlapped with the rotating shaft of tested gig；The magnetizing direction of the permanent magnet is vertical with the rotating shaft of tested gig；Also
Including two linear magnetic field ionization meter parts, the two linear magnetic field ionization meter parts are fixed on on-rotatably moving part, cloth
It is placed near permanent magnet central shaft；The magnetic direction of the two linear magnetic field ionization meter part measurements is mutually perpendicular to；The two
The magnetic direction of linear magnetic field ionization meter part measurement is all vertical with the rotating shaft of tested gig.
5. a kind of angular transducer with zero correction function according to claim 4, it is characterised in that：The permanent magnet is
Cylindric, one end that there is a circular pit, permanent magnet cylinder the end of tested gig rotating shaft is embedded in the pit.
6. a kind of angular transducer with zero correction function according to claim 4, it is characterised in that：Permanent magnet and quilt
Survey.
7. a kind of angular transducer with zero correction function according to claim 4, it is characterised in that：Permanent magnet and quilt
Fastened by non-magnetic screw between the rotating shaft for surveying gig.
8. a kind of angular transducer with zero correction function according to claim 4, it is characterised in that：Permanent magnet is ferrum
Ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620893188.1U CN206073909U (en) | 2016-08-17 | 2016-08-17 | A kind of angular transducer with zero correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620893188.1U CN206073909U (en) | 2016-08-17 | 2016-08-17 | A kind of angular transducer with zero correction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073909U true CN206073909U (en) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620893188.1U Active CN206073909U (en) | 2016-08-17 | 2016-08-17 | A kind of angular transducer with zero correction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020186406A1 (en) * | 2019-03-15 | 2020-09-24 | 深圳市大疆创新科技有限公司 | Self-correcting method for mounting angle of sensor, sensor, and mobile device |
-
2016
- 2016-08-17 CN CN201620893188.1U patent/CN206073909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020186406A1 (en) * | 2019-03-15 | 2020-09-24 | 深圳市大疆创新科技有限公司 | Self-correcting method for mounting angle of sensor, sensor, and mobile device |
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