CN107576348A - A kind of software adjusting zero method - Google Patents
A kind of software adjusting zero method Download PDFInfo
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- CN107576348A CN107576348A CN201710956573.5A CN201710956573A CN107576348A CN 107576348 A CN107576348 A CN 107576348A CN 201710956573 A CN201710956573 A CN 201710956573A CN 107576348 A CN107576348 A CN 107576348A
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- software
- host computer
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- low level
- adjusting zero
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000002045 lasting effect Effects 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
The invention discloses a kind of software adjusting zero method.The present invention is returned to zero using non-linear Hall element to element by related circuit, overcomes that produced in conventional processes cost is higher, and as a result reliability is relatively low, the problem of corresponding deviation be present relative to the calibration of ideal null.So as to the present invention propose it is a kind of can save production cost, judged result reliability is high, the high software adjusting zero method of precision.
Description
Technical field
The invention belongs to apparatus measures field, is related to a kind of method that software zeroing is carried out using non-linear Hall element.
Background technology
At present, with the development of industrial automation, either enterprise's production or scientific research, all rapidly to automatic inspection
Direction is surveyed to develop.Therefore, made it have after instrument use and automatically reply the ability of initial position and seem ever more important.Tradition
Method is that diverse location adds alignment sensor, such as photoelectric sensor, proximity switch etc. on element under test.Work as detecting system
After detecting initial position, system is made a response, and stops corresponding machine operation, it is believed that it has been returned to initial position.
There is deficiency for existing adjusting zero method.For example, drawing judgement before or after accurate location, positioning precision cannot be guaranteed.
It is this to position the normal work for there is deviation, influenceing instrument, and instrument for the higher instrument system of positioning accuracy request
Installation and debugging process it is relatively complicated.
It is therefore proposed that a kind of can save production cost, judged result is with a high credibility, the high software zeroing side of precision
Method is significant.
The content of the invention
The invention aims to reduce cost needed for traditional adjusting zero method；Overcome conventional method because accurate location it
It is preceding or draw judgement afterwards, the problem of credible result degree can not ensure；Overcome because of system delay and caused by offset issue.
Non-linear Hall element has good induction effect to magnetic element, when magnetic element is by non-linear Hall member
During part, non-linear Hall element can export corresponding signal, and element under test can be determined according to corresponding signal output waveform
Point midway, the purpose of precise positioning can be reached.
What the present invention was realized in：The present invention be by probing circuit and upper structure into.Wherein probing circuit is by non-
Linear hall element and corresponding resistor composition.When the magnetic element embedded in element under test dead-center position passes through non-linear Hall element
When, the output pin of non-linear Hall element can produce corresponding low level signal, when magnetic element leaves non-linear Hall member
During the induction range of part, the output pin output signal of non-linear Hall element is changed into high level from low level.
Host computer, the low level duration caused by record non-linear Hall element, come temporarily low in next zero-bit
The midpoint of level makes machine be stopped, so as to be accurately positioned zero point.
Brief description of the drawings
Fig. 1 is a kind of software adjusting zero method probing circuit theory diagrams of the present invention.
Fig. 2 is that a kind of software adjusting zero method zero point of the present invention determines method schematic.
Fig. 3 is a kind of software adjusting zero method flow chart of the present invention.
In figure：1st, it is non-linear hall element 2, is fixed value resistance.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 provides a kind of software adjusting zero method probing circuit theory diagrams of the present invention.When embedded in element under test dead-center position
When magnetic element is by non-linear Hall element, non-linear Hall element OUT pins can produce corresponding low level, and waveform is side
Ripple is as shown in Figure 2.Because the signal intensity of direct gained is stronger, and waveform more rule be directly output as electric signal therefore can be with
Handled directly as data signal, without increasing A/D convertor circuit, while be not required to discharge circuit.
Fig. 2 is that a kind of software adjusting zero method zero point of the present invention determines method schematic.When host computer obtains phase using software
The start recording low level duration is t after induction signal.Counted when host computer corresponding software detects that low level starts again
When be judged as zero point when passing through t/2.Pass through t/2 time when t1 starts for low level determined by the present invention again.Wherein t/2
Comprising the machine reaction time, i.e., the time that host computer judges is that t1 subtracts SRT.
Fig. 3 is a kind of software adjusting zero method flow chart of the present invention.This method includes element and starts working (step S1)；It is upper
Machine record low level lasting total time t (step S2)；T/2 is subtracted SRT as time decision by host computer, is made
Final result is t1 target zero-bit (step S3).
The present invention only used a magnetic element during implementation, compared to the multiple setting elements of tradition, reduce
Production cost；The present invention only used a magnetic element, therefore can be found in time when magnetic element breaks down, very well
Ground improves measurement reliability；Meanwhile the present invention from time waveform angle carry out zero point judgement, overcome because system delay and caused by
Offset issue.
Embodiments of the invention have been given, in the case of the principle of the present invention is not departed from, the embodiment of the present invention is made
Change, change, replace, deformation all falls in the scope of protection of the present invention.
Claims (4)
1. a kind of software adjusting zero method is characterized in that：By probing circuit and upper structure into.
2. a kind of software adjusting zero method as claimed in claim 1 is characterized in that：Probing circuit by non-linear Hall element and
Amplifying circuit forms.
3. a kind of software adjusting zero method as claimed in claim 1 is characterized in that：This method includes software start-up operation (step
S1)；Host computer record low level lasting total time t (step S2)；T/2 is subtracted SRT as judgement by host computer
Time, make the target zero-bit (step S3) that final result is t1.
4. a kind of software adjusting zero method as claimed in claim 1 is characterized in that：Start after host computer obtains corresponding signal
It is t to record the low level duration；Sentence when t/2 is passed through in timing when detecting that low level starts when host computer zero-detection again
Break as zero point；Pass through t/2 time when t1 starts for low level again, wherein t/2 includes the machine reaction time, i.e. host computer is made
The time judged subtracts SRT as t1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956573.5A CN107576348A (en) | 2017-10-12 | 2017-10-12 | A kind of software adjusting zero method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956573.5A CN107576348A (en) | 2017-10-12 | 2017-10-12 | A kind of software adjusting zero method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107576348A true CN107576348A (en) | 2018-01-12 |
Family
ID=61037587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956573.5A Pending CN107576348A (en) | 2017-10-12 | 2017-10-12 | A kind of software adjusting zero method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107576348A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040075426A1 (en) * | 2002-05-08 | 2004-04-22 | Matsushita Electric Industrial Co., Ltd. | Magnetic position detecting device |
| US20050073297A1 (en) * | 2003-10-01 | 2005-04-07 | Klaus Walter | Method and arrangement for correction of evaluation of a switching threshold of a magnetic sensor |
| US6879124B1 (en) * | 2004-01-07 | 2005-04-12 | Quan Jiang | Method to detect the true zero-crossing points of the phase back EMF for sensorless control of brushless DC motors |
| CN102199840A (en) * | 2011-05-25 | 2011-09-28 | 浙江恒强科技有限公司 | Machine head positioning method of stitching machine |
| CN106184463A (en) * | 2016-08-15 | 2016-12-07 | 北京钢铁侠科技有限公司 | There is the robot joints mechanism of dead-center position detection function |
| CN205941675U (en) * | 2016-01-28 | 2017-02-08 | 浙江绍兴苏泊尔生活电器有限公司 | Zero crossing point capturing device |
| CN106697334A (en) * | 2016-11-29 | 2017-05-24 | 上海卫星工程研究所 | Driving control method for satellite solar wing sailboard |
| CN106921320A (en) * | 2017-04-23 | 2017-07-04 | 中国科学院国家天文台南京天文光学技术研究所 | One kind splicing arc electric motor rotor electrical zero and electrical angle detection method |
| CN107026539A (en) * | 2017-05-22 | 2017-08-08 | 华中科技大学 | Integrated magnetic coder and Hall switch determine the external rotor permanent magnet synchronous machine of position |
| EP3226401A1 (en) * | 2014-11-26 | 2017-10-04 | Sanken Electric Co., Ltd. | Motor drive device |
-
2017
- 2017-10-12 CN CN201710956573.5A patent/CN107576348A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040075426A1 (en) * | 2002-05-08 | 2004-04-22 | Matsushita Electric Industrial Co., Ltd. | Magnetic position detecting device |
| US20050073297A1 (en) * | 2003-10-01 | 2005-04-07 | Klaus Walter | Method and arrangement for correction of evaluation of a switching threshold of a magnetic sensor |
| US6879124B1 (en) * | 2004-01-07 | 2005-04-12 | Quan Jiang | Method to detect the true zero-crossing points of the phase back EMF for sensorless control of brushless DC motors |
| CN102199840A (en) * | 2011-05-25 | 2011-09-28 | 浙江恒强科技有限公司 | Machine head positioning method of stitching machine |
| EP3226401A1 (en) * | 2014-11-26 | 2017-10-04 | Sanken Electric Co., Ltd. | Motor drive device |
| CN205941675U (en) * | 2016-01-28 | 2017-02-08 | 浙江绍兴苏泊尔生活电器有限公司 | Zero crossing point capturing device |
| CN106184463A (en) * | 2016-08-15 | 2016-12-07 | 北京钢铁侠科技有限公司 | There is the robot joints mechanism of dead-center position detection function |
| CN106697334A (en) * | 2016-11-29 | 2017-05-24 | 上海卫星工程研究所 | Driving control method for satellite solar wing sailboard |
| CN106921320A (en) * | 2017-04-23 | 2017-07-04 | 中国科学院国家天文台南京天文光学技术研究所 | One kind splicing arc electric motor rotor electrical zero and electrical angle detection method |
| CN107026539A (en) * | 2017-05-22 | 2017-08-08 | 华中科技大学 | Integrated magnetic coder and Hall switch determine the external rotor permanent magnet synchronous machine of position |
Non-Patent Citations (1)
| Title |
|---|
| 邱召运;刘其涛;李述香;刘发明;: "一种简易霍尔旋转编码器的设计" * |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180112 |