CN107356193A - A kind of detection means of rotational angle - Google Patents
A kind of detection means of rotational angle Download PDFInfo
- Publication number
- CN107356193A CN107356193A CN201710653192.XA CN201710653192A CN107356193A CN 107356193 A CN107356193 A CN 107356193A CN 201710653192 A CN201710653192 A CN 201710653192A CN 107356193 A CN107356193 A CN 107356193A
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- China
- Prior art keywords
- axle
- gear
- sensor unit
- stator
- detection means
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention relates to rotor detection field, discloses a kind of detection means of rotational angle, and the device includes：Including：First axle, first gear, first sensor unit, the first gear are socketed in the first axle with one heart with the first sensor unit；Second axle, second gear, second sensor unit, the second gear are socketed on second axle with one heart with the second sensor unit；The first sensor unit and second sensor unit are the sensor of induction effect.The present invention program improves measurement accuracy, and cost is relatively low, low to environmental requirement.
Description
Technical field
The present invention relates to rotor detection field, specifically, is related to a kind of detection means of rotational angle.
Background technology
In mechanical structure, the angle for measuring article for rotation is a general need.In measurement angle, it is necessary to by
Sensing unit measures the rotational angle of article for rotation, rotational angle particular more than 360 degree.
CN175999A discloses a kind of scheme for detecting article for rotation corner, the sensing unit that the program passes through magnetic action
Carry out angle detection.But in this scenario, sensing unit is arranged on that attached gear is enterprising in the ranks to connect measurement, and drive gap can not
Influence final measurement result with avoiding, cause measurement accuracy to be difficult to further be lifted, be extremely difficult within 1 degree.And magnetic is made
Sensing unit is naturally more sensitive to temperature, and measurement accuracy can also reduce under hot environment.
Therefore, it is necessary to the detection means that a kind of measurement accuracy is high, environmental requirement is relatively low.
The content of the invention
In order to overcome above-mentioned technical problem, the invention provides a kind of detection means of rotational angle, improves measurement essence
Degree, and cost is relatively low, it is low to environmental requirement.
To achieve these goals, the invention provides a kind of detection means of rotational angle, including：
First axle, first gear, first sensor unit, the first gear and the first sensor unit are with one heart
It is socketed in the first axle；
Second axle, second gear, second sensor unit, the second gear and the second sensor unit are with one heart
It is socketed on second axle；
The first sensor unit and second sensor unit are the sensor of electric induction effect.
Further, the first axle and second axle be arranged in parallel and by the first gears and second tooth
Wheel rotatable connection.
Further, the first axle and second axle are any angle setting or coaxial placement；
Further, the first sensor unit includes the first signal panels and the first stator, the second sensor list
Member includes secondary signal disk and the second stator.
Further, the first axle and second axle pass perpendicularly through a pedestal, and ring is set respectively on the pedestal
The first stator around the first axle and the second stator around second axle.
Further, the number of teeth of the first gear and the second gear in target range circle without least common multiple.
Further, the frequency of excitation coil differs in first stator and second stator.
Further, between first signal panels and the secondary signal disk, first stator and described second
Isolating metal piece is set between stator.
The detection means of rotational angle of the present invention, including：First axle, first gear, first sensor unit, institute
First gear is stated to be socketed in one heart in the first axle with the first sensor unit；Second axle, second gear, second passes
Sensor cell, the second gear are socketed on second axle with one heart with the second sensor unit；Described first passes
Sensor cell and second sensor unit are the sensor of electric induction effect.Centralized arrangement is realized in device design, entirely without
Magnetic action sensor is present, and makes the requirement of sensors towards ambient further reduce, is especially to ensure that the measurement in hot environment
Precision, the precision under various temperature environments is set to reach within 0.1 degree.It is and straight by the double main shafts of Full Traffic-Actuated sensing unit
The arrangement of measurement is connect, is improved the reliability of measurement.
Brief description of the drawings
Fig. 1 is the schematic diagram of the detection means of rotational angle of the present invention；
Fig. 2 is the cross section view of the detection means of rotational angle of the present invention；
Fig. 3 is the top view of the detection means of rotational angle of the present invention.
Embodiment
Below with reference to the accompanying drawings embodiments of the invention are illustrated.Retouched in the accompanying drawing of the present invention or a kind of embodiment
The element and feature that the element and feature stated can be shown in one or more other accompanying drawings or embodiment are combined.Should
Work as attention, for purposes of clarity, eliminated in accompanying drawing and explanation known to unrelated to the invention, those of ordinary skill in the art
Part or processing expression and description.
The embodiments of the invention provide a kind of detection means of rotational angle, as shown in Figure 1, Figure 2 and Figure 3, the device bag
Include first axle 2, the second axle 3, first gear 1, second gear 4, the first signal panels 10, secondary signal disk 5, the first stator 9, second
Stator 7, pedestal 8, process circuit 6.Wherein the first signal panels 10 and the first stator 9 form first sensor unit, secondary signal
The stator 7 of disk 5 and second forms second sensor unit.First signal panels 10 and secondary signal disk 5 are the equal of two rotors.
The rigidity of 1 and first signal panels of first gear 10 is socketed in first axle 2 with one heart, can be 2 turns with first axle
It is dynamic.Second gear 4 and the rigidity of secondary signal disk 5 are socketed on the second axle 3 with one heart, can be rotated with the second axle 3.
The axle 3 of first axle 2 and second is be arranged in parallel, and two axles are rotatably connected by first gear 1 and second gear 4, and first
The axle 3 of axle 2 and second passes perpendicularly through a pedestal 8, is set respectively around the first stator 9 of first axle 2 and around second on pedestal 8
Second stator 7 of axle 3.
Excitation coil and induction coil are included in stator.
The position of two sensor units is more flexible, can be at the middle part or end of any position of axle, such as axle.
The detection means of rotational angle provided in an embodiment of the present invention can also be other structures, such as first axle 2 and
Two axles 3 are coaxial and join end to end.First gear 1 is in first axle 2, and second gear 4 is on the second axle 3, turn of two gears
It is fast different.And for example the axle 3 of first axle 2 and second is in 90 degree of settings, and first gear 1 is in first axle 2, and second gear 4 is in the second axle 3
On, drive first gear 1, second gear 4 to rotate respectively by a bevel gear.
It is as follows to the rotation measuring process of axle：
First, first sensor unit measures the rotational angle of first axle 2 (within 360 degree).Second induction type sensing
Unit measures the angle of the second axle 3 (within 360 degree).
The measuring principle of sensor unit is：When rotating, coaxial signal panels rotate axle together, induce in the stator
Induced electromotive force corresponding to corner, rotational angle position is from which further followed that according to induced electromotive force.The axle 3 of first axle 2 and second
Rotate number ratio to pre-establish, the angular positional value of any one axle can be measured, including calculate the turned position value more than 360 degree.
Because signal panels are the metallic rotators of given shape, when signal panels are rotating, position is changed, and stator, which produces, periodically to be become
The induced voltage signal of change, induced voltage signal are sent to signal processing chip and handled, so as to obtain induced voltage signal
Amplitude information, process circuit 6 to amplitude information carry out inverse cosine function computing, recovering signal disk, gear and axle can be calculated
Rotation position information.
Further, the angle and the angle of the second axle 3 for the first axle 2 that the rotation by being designed to the different numbers of teeth couples, i.e.,
The angle of the multi-turn of the axle 3 of first axle 2 or second can be obtained based on the algorithm of vernier.The axle 3 of first axle 2 and second is the rotation of gear
Turning connection, first gear 1 has different teeth from second gear 4, in the rotational travel for the angular range that we need to measure,
The number of teeth of first gear 1 is provided without two values of least common multiple with the number of teeth of second gear 4.Meanwhile two sensings
Unit draws two angles respectively, process circuit 6 can according to the ratio of the number of teeth and two angle values, by the algorithm of vernier,
The actual measurement angle for being more than 360 degree of any one axle is calculated.
Wherein, the number of teeth of first gear and the number of teeth of second gear are public without minimum in total number of teeth that the range of target turns over
Multiple.
Further, the excitation coil frequency or induction coil frequency of the first stator and the second stator differ, to reduce
Interacting between two sensing units.A kind of optional scheme is：When the excitation coil frequency point of the first stator, the second stator
Not Wei 4MHz and 3.7MHz when, the distance between excitation coil will avoid 4-6 millimeters this scopes.
Further, isolation gold is set between the first signal panels and secondary signal disk, between the first stator and the second stator
Belong to piece, so as to further reduce interference.
Further, induction coil can be designed on the first signal panels 10 or secondary signal disk 5, the side of this sensing
Formula can prevent more disturbing factors.
Centralized arrangement is realized in the detection means design of rotational angle of the present invention, is deposited entirely without magnetic action sensor
Make the requirement of sensors towards ambient further reduce, be especially to ensure that the measurement accuracy in hot environment, making various temperature
Precision under environment can reach within 0.1 degree.And by the double main shafts of Full Traffic-Actuated sensing unit arrangement measured directly, make
The reliability of measurement is improved.
Although the present invention and its advantage is described in detail it should be appreciated that without departing from by appended claim
Various changes, replacement and conversion can be carried out in the case of the spirit and scope of the present invention limited.Moreover, the model of the application
Enclose the process described by specification of being not limited only to, equipment, means, the specific embodiment of method and steps.In the art is common
Technical staff will readily appreciate that from the disclosure, can be used and performed and corresponding reality described herein according to the present invention
Apply the essentially identical function of example or obtain process essentially identical with it result, existing and that future is to be developed, equipment,
Means, method or step.Therefore, appended claim includes such process, equipment, hand in the range of being directed at them
Section, method or step.
Claims (8)
- A kind of 1. detection means of rotational angle, it is characterised in that including：First axle, first gear, first sensor unit, the first gear are socketed with one heart with the first sensor unit In the first axle；Second axle, second gear, second sensor unit, the second gear are socketed with one heart with the second sensor unit On second axle；The first sensor unit and second sensor unit are the sensor of induction effect.
- 2. detection means according to claim 1, it is characterised in that the first axle and second axle be arranged in parallel and It is rotatably connected by the first gear and the second gear.
- 3. detection means according to claim 1, it is characterised in that the first axle and second axle are any angle Setting or coaxial placement.
- 4. detection means according to claim 2, it is characterised in that the first sensor unit includes the first signal panels With the first stator, the second sensor unit includes secondary signal disk and the second stator.
- 5. detection means according to claim 4, it is characterised in that the first axle and second axle pass perpendicularly through one Pedestal, the first stator around the first axle and the second stator around second axle are set respectively on the pedestal.
- 6. detection means according to claim 2, it is characterised in that the number of teeth of the first gear and the second gear Total number of teeth for being turned in target range of the number of teeth in without least common multiple.
- 7. detection means according to claim 1, it is characterised in that encouraged in first stator and second stator The frequency of coil differs.
- 8. detection means according to claim 1, it is characterised in that in first signal panels and the secondary signal disk Between, isolating metal piece is set between first stator and second stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653192.XA CN107356193A (en) | 2017-08-02 | 2017-08-02 | A kind of detection means of rotational angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653192.XA CN107356193A (en) | 2017-08-02 | 2017-08-02 | A kind of detection means of rotational angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107356193A true CN107356193A (en) | 2017-11-17 |
Family
ID=60286290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710653192.XA Pending CN107356193A (en) | 2017-08-02 | 2017-08-02 | A kind of detection means of rotational angle |
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| CN (1) | CN107356193A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044252A (en) * | 2019-04-02 | 2019-07-23 | 武汉理岩控制技术有限公司 | A kind of measuring device and measuring method for detection axis rotational angle |
| CN110203277A (en) * | 2019-05-22 | 2019-09-06 | 深圳市飞仙智能科技有限公司 | Determination method, corner determining device and the medium of the absolute rotation angle of steering shaft |
| CN110307860A (en) * | 2019-07-02 | 2019-10-08 | 深圳万讯自控股份有限公司 | A kind of differential type Hall multi-turn position absolute position transducer and its detection method |
| CN110542374A (en) * | 2018-05-29 | 2019-12-06 | 上海海拉电子有限公司 | Angle measuring sensor |
| CN114391085A (en) * | 2019-10-10 | 2022-04-22 | 舍弗勒技术股份两合公司 | Sensor device for detecting rotational angle position of rotatable shaft, and steering device for vehicle |
| CN117704956A (en) * | 2024-02-05 | 2024-03-15 | 国机传感科技有限公司 | Flat angle sensor and measuring method |
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| CN101893423A (en) * | 2009-05-20 | 2010-11-24 | 阿尔卑斯电气株式会社 | Multi-rotation angle detection device |
| CN102072738A (en) * | 2009-11-24 | 2011-05-25 | 通用汽车环球科技运作公司 | Meshing encoder gear and sensor assembly |
| CN103256884A (en) * | 2012-02-21 | 2013-08-21 | 罗伯特·博世有限公司 | Arrangement for detection of rotation angles at rotating component |
| CN103256885A (en) * | 2012-02-21 | 2013-08-21 | 罗伯特·博世有限公司 | Sensor arrangement for detecting rotational angles of rotary component installed in vehicle |
| CN105241373A (en) * | 2014-05-08 | 2016-01-13 | 罗伯特·博世有限公司 | Sensor arrangement for sensing rotation angles on a rotating component in a vehicle |
| CN205940448U (en) * | 2016-07-07 | 2017-02-08 | 安徽沃巴弗电子科技有限公司 | Measure inductive transducer of many rings of angles |
| CN106574829A (en) * | 2014-08-25 | 2017-04-19 | 株式会社Sg | Rotation-detecting apparatus |
| JP2017101935A (en) * | 2015-11-30 | 2017-06-08 | 株式会社小野測器 | Rotation angle detection device and rotary encoder |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893423A (en) * | 2009-05-20 | 2010-11-24 | 阿尔卑斯电气株式会社 | Multi-rotation angle detection device |
| CN102072738A (en) * | 2009-11-24 | 2011-05-25 | 通用汽车环球科技运作公司 | Meshing encoder gear and sensor assembly |
| CN103256884A (en) * | 2012-02-21 | 2013-08-21 | 罗伯特·博世有限公司 | Arrangement for detection of rotation angles at rotating component |
| CN103256885A (en) * | 2012-02-21 | 2013-08-21 | 罗伯特·博世有限公司 | Sensor arrangement for detecting rotational angles of rotary component installed in vehicle |
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| JP2017101935A (en) * | 2015-11-30 | 2017-06-08 | 株式会社小野測器 | Rotation angle detection device and rotary encoder |
| CN205940448U (en) * | 2016-07-07 | 2017-02-08 | 安徽沃巴弗电子科技有限公司 | Measure inductive transducer of many rings of angles |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542374A (en) * | 2018-05-29 | 2019-12-06 | 上海海拉电子有限公司 | Angle measuring sensor |
| CN110542374B (en) * | 2018-05-29 | 2021-11-16 | 上海海拉电子有限公司 | Angle measuring sensor |
| CN110044252A (en) * | 2019-04-02 | 2019-07-23 | 武汉理岩控制技术有限公司 | A kind of measuring device and measuring method for detection axis rotational angle |
| CN110203277A (en) * | 2019-05-22 | 2019-09-06 | 深圳市飞仙智能科技有限公司 | Determination method, corner determining device and the medium of the absolute rotation angle of steering shaft |
| CN110307860A (en) * | 2019-07-02 | 2019-10-08 | 深圳万讯自控股份有限公司 | A kind of differential type Hall multi-turn position absolute position transducer and its detection method |
| CN110307860B (en) * | 2019-07-02 | 2021-08-03 | 深圳万讯自控股份有限公司 | Differential Hall multi-ring position absolute position sensor and detection method thereof |
| CN114391085A (en) * | 2019-10-10 | 2022-04-22 | 舍弗勒技术股份两合公司 | Sensor device for detecting rotational angle position of rotatable shaft, and steering device for vehicle |
| CN117704956A (en) * | 2024-02-05 | 2024-03-15 | 国机传感科技有限公司 | Flat angle sensor and measuring method |
| CN117704956B (en) * | 2024-02-05 | 2024-04-26 | 国机传感科技有限公司 | Flat angle sensor and measuring method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171117 |