CN110375788A - The orthogonal differential wave demodulation instrument calibration method in four tunnels of one kind and system - Google Patents
The orthogonal differential wave demodulation instrument calibration method in four tunnels of one kind and system Download PDFInfo
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Abstract
A kind of orthogonal differential wave demodulation instrument calibration method in four tunnel disclosed by the invention and system, belong to demodulation metering instrument field.Master and slave signal generator in standard signal generation system is synchronized connection by the present invention；The output channel correspondence of master and slave signal generator is connect on the channel for being calibrated object；It is required according to object output signal is calibrated, main signal generator channel 1 and the waveform in channel 2, signal period, amplitude, bias voltage parameter, initial phase are set, is set from signal generator channel 3, the waveform in channel 4, signal period, amplitude, bias voltage parameter, initial phase.According to the angle [alpha] of required variation or length l, triggering recurring number is set separately.Set cycle T.Triggering key next time is often pressed in main signal generator and then exports a standard value, while record is calibrated object resolving value, calculates the difference for being calibrated object resolving value and standard value, obtains the measurement error for being proofread elephant, realizes the orthogonal differential wave (FBG) demodulator calibration in four tunnels.
Description
Technical field
The present invention relates to a kind of orthogonal differential wave demodulation instrument calibration method in four tunnels and systems, belong to demodulation metering instrument
Field.
Background technique
The devices such as grating, the encoder largely used in displacement, angle measurement are swept using image scanning principle or interference
It retouches principle and carries out motion measurement, export 4 road electric signals, the poor 90 ° of Electron Angulars of their phase with one another, using signal demodulation instrument to it
Demodulation, is displaced or the measurement result of angle.Existing grating, the delineation of encoder, manufacture etc. miss in this measurement result
Difference also has component, the algorithm equal error of demodulation instrument.
Summary of the invention
A kind of orthogonal differential wave demodulation instrument calibration method in four tunnel disclosed by the invention and the system technology to be solved are asked
Topic is: realizing and demodulates calibrating indicating instrument to the orthogonal differential wave in four tunnels.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of orthogonal differential wave in four tunnel disclosed by the invention demodulates instrument calibration method, includes the following steps:
Step 1: the orthogonal differential wave in four tunnels of installation demodulates meter calibration system, and connects and be calibrated instrument or board.
By in standard signal generation system main signal generator, from signal generator synchronize connection；By main signal
Generator connects from the output channel of signal generator correspondence on the channel for being calibrated instrument.
Step 2: setting main signal generator parameter.
The reference output of main signal generator is terminated to from the external input reference end of signal generator, triggering is set as
ON, system set fixed MHz Ref according to the needs of use and are automatically closed, and source is set as internal (inside).Foundation is calibrated instrument
The parameter in two channels of signal generator is set separately in the semaphore request of table or board, sets the parameter in channel 1: waveform, week
Phase, amplitude, offset parameter, triggering recurring number, initial phase；Set waveform, period, amplitude, the offset parameter, triggering in channel 2
Recurring number, setting 2 above-mentioned parameter of channel is identical as channel 1, and the phase in channel 1 is set as 0 °, and the phase in channel 2 is set as 90 °.Wherein
The angular dimension that sets when recurring number is according to the number and calibration for being calibrated instrument or board demodulated signal determines.
Join preferably, terminating to the 10MHz of main signal generator with reference to output from the external input of signal generator
End is examined, triggering is set as ON, and setting 10MHz Ref is automatically closed, and source is set as internal (inside).
Step 3: it sets from signal generator parameter.
It is set as triggering from signal generator operational mode, signal source selects external, Systematic selection external trigger, synchronous reference
Clock is set as external.The waveform in channel 3 and channel 4, period, amplitude, offset parameter, triggering recurring number are set separately, in setting
It is identical as the channel 1 in step 2 to state parameter, the phase in channel 3 is set as 180 °, the phase in channel 4 is set as 270 °.
Step 4: setting cycle T.
The setting of cycle T meets following relationship according to the frequency f setting for being calibrated instrument or board response:
Step 5: triggering recurring number M is determined.
When the line number for the Circular gratings for being calibrated instrument or board resolving is N/ circle, then the corresponding grating line number of every degree is N/
360, it needs to turn over angle when spending for α, then triggers recurring number M and be calculated as follows.
When the line number for the long grating for being calibrated instrument or board resolving is N/mm, then every meter of corresponding grating line number is
1000N when needing l meters of movement length, then triggers recurring number M and is calculated as follows.
M=1000lN
Since signal generator only provides integer waveform, the groove sum for being calibrated instrument or the board resolving circle of grating one is
When N, the angle measurement resolution ratio η that can provide are as follows:
Wherein:
P-signal period, unit: 〃
η-resolution ratio, unit: 〃
N-grating one encloses the groove sum of (360 °).
Equally, instrument or board are calibrated for when resolving length grating, when the line number of grating is N/mm, can provided
Linear measure longimetry resolution ratio Q are as follows:
Wherein:
γ-signal period, unit: μm
Q-resolution ratio, unit: μm
Groove sum in N -1mm length.
Step 6: according to the requirement of instrument output signal is calibrated, main signal generator channel 1 is set separately according to step 2
With the waveform in channel 2, signal period, amplitude, bias voltage parameter, initial phase.It is set separately according to step 3 from signal and sends out
Raw device channel 3 and the waveform in channel 4, signal period, amplitude, bias voltage parameter, initial phase.According to must variation angle
α or length l, according to Step 2: three are set separately triggering recurring number.Cycle T is set according to step 4.It determines and touches according to step 5
Send out recurring number M.Triggering key next time is often pressed in main signal generator and then exports a standard value, while record is calibrated object solution
Calculation value calculates and is calibrated the difference of object resolving value and standard value, obtains being proofread the measurement error of elephant to get to four tunnel difference in orthogonality
Dynamic signal (FBG) demodulator calibration result.
The standard value is angle [alpha] or length l.The instrument resolving value that is calibrated is angle [alpha] ' or length l '.
The orthogonal differential wave (FBG) demodulator calibration result in four tunnels is indicated with following formula in step 6:
ei=α 'i-αi
eiMeasurement error deviation when-i-th angle or length, unit: 〃 (μm)；
α′i- it is calibrated i-th of angle or length value that instrument demodulates, unit: 〃 (μm)；
αiI-th of the standard angle or length value that-modular system provides, unit: 〃 (μm)；
Angle or the length error of indication:
The object that is calibrated includes being calibrated instrument or board.
The signal generator includes main signal generator, from signal generator.
Invention additionally discloses four tunnels for realizing a kind of orthogonal differential wave demodulation instrument calibration method in four tunnel just
Differential wave is handed over to demodulate meter calibration system, including standard signal generation subsystem, two binary channels high-accurate temperature measurements,
Being calibrated object is by school instrument or board.Standard signal generation subsystem is wrapped for generating the orthogonal differential wave in four tunnel of standard
Include main signal generator, from signal generator.Two binary channels high-accurate temperature measurements, four tunnels for generating standard are differential
Signal.
By in standard signal generation system main signal generator, from signal generator synchronize connection；By main signal
Generator connects from the output channel of signal generator correspondence on the channel for being calibrated object；Believe according to object output is calibrated
Number require, waveform, the signal period, amplitude, biased electrical in main signal generator channel 1 and channel 2 are set separately according to step 2
Press parameter, initial phase.It is set separately according to step 3 from the waveform in signal generator channel 3 and channel 4, signal period, width
Value, bias voltage parameter, initial phase.According to must variation angle [alpha] or length l, according to Step 2: three, five determine trigger
Recurring number M.Cycle T is set according to step 4.Triggering key next time is often pressed in main signal generator and then exports a standard value, together
Shi Jilu is calibrated object resolving value, calculates the difference for being calibrated object resolving value and standard value, and the measurement for obtaining being proofread elephant misses
Difference.
The utility model has the advantages that
A kind of orthogonal differential wave demodulation instrument calibration method in four tunnel disclosed by the invention and system, standard signal is generated
Main signal generator in subsystem synchronizes connection from signal generator；By main signal generator, from signal generator
Output channel correspondence connects on the channel for being calibrated object；According to the requirement of object output signal is calibrated, distinguish according to step 2
Set main signal generator channel 1 and the waveform in channel 2, signal period, amplitude, bias voltage parameter, initial phase.According to step
Rapid three are set separately from the waveform in signal generator channel 3 and channel 4, signal period, amplitude, bias voltage parameter, initial phase
Position.According to must variation angle [alpha] or length l, according to Step 2: three are set separately triggering recurring number.It is set according to step 4
Cycle T.Triggering recurring number M is determined according to step 5.Triggering key next time, which is often pressed, in main signal generator then exports a standard
Value, while record is calibrated object resolving value, calculates the difference for being calibrated object resolving value and standard value, obtains the survey for being proofread elephant
Error is measured, i.e., is realized using all purpose instrument and calibrating indicating instrument is demodulated to the orthogonal differential wave in four tunnels.
Detailed description of the invention
Fig. 1 is that a kind of orthogonal differential wave in four tunnel disclosed by the invention demodulates meter calibration system block diagram；
Fig. 2 is that a kind of orthogonal differential wave in four tunnel disclosed by the invention demodulates instrument calibration method flow chart.
Specific embodiment
Objects and advantages in order to better illustrate the present invention with reference to the accompanying drawing do further summary of the invention with example
Explanation.
Embodiment 1:
The orthogonal differential wave in four tunnel of one kind disclosed in the present embodiment demodulates instrument calibration method, and being calibrated instrument is certain type light
Code disc detector, the input signal of the gage requirement are 4 tunnel grating signals of 90 ° of difference using 2.5V as center level, peak-peak
(p-p) value is more than or equal to 3V, is less than or equal to 4V, and signal frequency is not more than 540K, and the revolving speed of corresponding 6480 lines/circle Circular gratings is little
In 30 °/s.It is as shown in Figure 2 to calibrate process.
The orthogonal differential wave in four tunnel of one kind disclosed in the present embodiment demodulates instrument calibration method, and the specific implementation steps are as follows:
Step 1: by standard signal generation system main signal generator, from signal generator synchronize connection；
Step 2: it connects by main signal generator, from the output channel of signal generator correspondence to photoelectric code disk detector
On channel.Wiring is carried out by Fig. 1；
Step 3: setting main signal generator parameter.
The 10MHz of the rear panel of main signal generator is terminated to reference to output from the external input of signal generator and is referred to
End, triggering are set as ON, and default 10MHz Ref is automatically closed, and source is set as internal.
Set the parameter in main signal generator channel 1: waveform is set as sinusoidal signal, period 10ms, amplitude 1.75VP-P, partially
It sets parameter 1.25V, trigger recurring number 540,0 ° of initial phase；
Set the parameter in main signal generator channel 2: waveform is set as sinusoidal signal, period 10ms, amplitude 1.75VP-P, partially
It sets parameter 1.25V, trigger recurring number 540,90 ° of initial phase；
Wherein the setting of cycle T meets following relationship according to the frequency f setting for being calibrated instrument or board response:
540K is not more than by school signal frequency, takes period 10ms
The line number of the surveyed Circular gratings of photoelectric code disk detector is 6480/ circle, then the corresponding grating line number of every degree is 6480/
360 °, need to turn over angle be 30 ° when, then trigger recurring number M and be calculated as follows.
Since signal generator only provides integer waveform, photoelectric code disk detector resolves the groove sum that grating one encloses and is
When 6480, the angle measurement resolution ratio η that can provide are as follows:
Step 4: it sets from signal generator parameter.
It will be set as triggering from signal generator operational mode, signal source selects outside, sets out outside Systematic selection, synchronous ginseng
It examines clock and is set as external.
Set the parameter in main signal generator channel 3: waveform is set as sinusoidal signal, period 10ms, amplitude 1.75VP-P, partially
It sets parameter 1.25V, trigger recurring number 540,180 ° of initial phase
Set the parameter in main signal generator channel 4: waveform is set as sinusoidal signal, period 10ms, amplitude 1.75VP-P, partially
It sets parameter 1.25V, trigger recurring number 540,270 ° of initial phase
Step 5: start to measure.
Step 6: recording and calculating photoelectric code disk detector calibration result, be shown in Table 1, is calibrated object solution according to the calculating of table 1
The difference of calculation value and standard value obtains being proofread the measurement error of elephant to get to the orthogonal differential wave (FBG) demodulator calibration result in four tunnels.
1 photoelectric code disk detector calibration result of table
As shown in Fig. 2, the present embodiment is also disclosed for realizing a kind of orthogonal differential wave demodulation calibrating indicating instrument in four tunnel
The orthogonal differential wave demodulation meter calibration system in four tunnels of method, including standard signal generation subsystem, two binary channels are high-precision
Signal generator is spent, being calibrated object is by school instrument or board.Standard signal generation subsystem is for generating four tunnel of standard just
Hand over differential wave, including main signal generator, from signal generator.Two binary channels high-accurate temperature measurements, for generating
Four tunnel differential waves of standard.
Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (4)
1. the orthogonal differential wave in four tunnels of one kind demodulates instrument calibration method, it is characterised in that: include the following steps,
Step 1: the orthogonal differential wave in four tunnels of installation demodulates meter calibration system, and connects and be calibrated instrument；
By in standard signal generation system main signal generator, from signal generator synchronize connection；Main signal is occurred
Device connects from the output channel of signal generator correspondence on the channel for being calibrated instrument；
Step 2: setting main signal generator parameter；
By the output of main signal generator with reference to terminating to from the external input reference end of signal generator, triggering is set as ON, is
System sets fixed MHz Ref according to the needs of use and is automatically closed, and source is set as internal；According to the letter for being calibrated instrument or board
It number requires, is set separately the parameter in two channels of signal generator, sets the parameter in channel 1: waveform, period, amplitude, biasing ginseng
Number, triggering recurring number, initial phase；Waveform, period, amplitude, the offset parameter, triggering recurring number for setting channel 2, set channel
2 above-mentioned parameters are identical as channel 1, and the phase in channel 1 is set as 0 °, and the phase in channel 2 is set as 90 °；Wherein recurring number is according to by school
The angular dimension that sets when the number and calibration of quasi- instrument or board demodulated signal determines；
Step 3: it sets from signal generator parameter；
It is set as triggering from signal generator operational mode, signal source selects external, Systematic selection external trigger, synchronous refernce clocks
It is set as external；Waveform, period, amplitude, the offset parameter, triggering recurring number in channel 3 and channel 4 is set separately, sets above-mentioned ginseng
Number is identical as the channel 1 in step 2, and the phase in channel 3 is set as 180 °, the phase in channel 4 is set as 270 °；
Step 4: setting cycle T；
The setting of cycle T meets following relationship according to the frequency f setting for being calibrated instrument or board response:
Step 5: triggering recurring number M is determined；
When the line number for the Circular gratings for being calibrated instrument or board resolving is N/ circle, then the corresponding grating line number of every degree is N/360, is needed
When turning over angle and being spent for α, then triggers recurring number M and be calculated as follows；
When the line number for the long grating for being calibrated instrument or board resolving is N/mm, then every meter of corresponding grating line number is 1000N, is needed
When wanting l meters of movement length, then triggers recurring number M and be calculated as follows；
M=1000lN
Since signal generator only provides integer waveform, it is calibrated instrument or board and resolves groove sum that grating one encloses when being N,
The angle measurement resolution ratio η that can be provided are as follows:
Wherein:
P-signal period, unit: 〃
η-resolution ratio, unit: 〃
N-grating one encloses 360 ° of groove sum；
Equally, instrument or board are calibrated for when resolving length grating, when the line number of grating is N/mm, the length that can be provided
Measurement Resolution Q are as follows:
Wherein:
γ-signal period, unit: μm
Q-resolution ratio, unit: μm
Groove sum in N -1mm length；
Step 6: according to the requirement of instrument output signal is calibrated, main signal generator channel 1 is set separately and leads to according to step 2
The waveform in road 2, signal period, amplitude, bias voltage parameter, initial phase；It is set separately according to step 3 from signal generator
The waveform in channel 3 and channel 4, signal period, amplitude, bias voltage parameter, initial phase, according to must variation angle [alpha] or
Length l, according to Step 2: three, five determine triggering recurring number M；Cycle T is set according to step 4；It is often pressed in main signal generator
Triggering key then exports a standard value next time, while record is calibrated object resolving value, calculating be calibrated object resolving value with
The difference of standard value obtains being proofread the measurement error of elephant to get to the orthogonal differential wave (FBG) demodulator calibration result in four tunnels；
The standard value is angle [alpha] or length l；The instrument resolving value that is calibrated is angle [alpha] ' or length l '.
2. the orthogonal differential wave in four tunnels of one kind as described in claim 1 demodulates instrument calibration method, it is characterised in that: step 6
In the orthogonal differential wave (FBG) demodulator calibration result in four tunnels indicated with following formula:
ei=α 'i-αi
eiMeasurement error deviation when-i-th angle or length, unit: 〃 (μm)；
α′i- it is calibrated i-th of angle or length value that instrument demodulates, unit: 〃 (μm)；
αiI-th of the standard angle or length value that-modular system provides, unit: 〃 (μm)；
Angle or the length error of indication:
3. the orthogonal differential wave in four tunnels of one kind as claimed in claim 2 demodulates instrument calibration method, it is characterised in that: step 2
The 10MHz of main signal generator is terminated to reference to output from the external input reference end of signal generator, triggering is set as ON, if
Determine 10MHz Ref to be automatically closed, source is set as internal.
4. the orthogonal differential wave in four tunnels demodulates meter calibration system, for realizing a kind of four tunnel as claimed in claim 1,2 or 3
Orthogonal differential wave demodulates instrument calibration method, it is characterised in that: high-precision including standard signal generation subsystem, two binary channels
Signal generator is spent, being calibrated object is by school instrument or board；Standard signal generation subsystem is for generating four tunnel of standard just
Hand over differential wave, including main signal generator, from signal generator；Two binary channels high-accurate temperature measurements, for generating
Four tunnel differential waves of standard；
By in standard signal generation system main signal generator, from signal generator synchronize connection；Main signal is occurred
Device connects from the output channel of signal generator correspondence on the channel for being calibrated object；It is wanted according to object output signal is calibrated
It asks, joins according to waveform, signal period, amplitude, the bias voltage that main signal generator channel 1 and channel 2 is set separately in step 2
Number, initial phase；According to step 3 be set separately from the waveform in signal generator channel 3 and channel 4, signal period, amplitude, partially
Set voltage parameter, initial phase；According to the angle [alpha] of required variation or length l, according to Step 2: three, five determine triggering recurring number
M；Cycle T is set according to step 4；A standard value is then often exported by triggering key next time on main signal generator, is remembered simultaneously
Record is calibrated object resolving value, calculates the difference for being calibrated object resolving value and standard value, obtains the measurement error for being proofread elephant.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580033A (en) * | 2020-06-24 | 2020-08-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method for calibrating phase difference in dynamic calibration process |
| CN116868079A (en) * | 2022-11-10 | 2023-10-10 | 长沙天恒测控技术有限公司 | Zero phase calibration method, computer device and storage medium |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2944213A1 (en) * | 1979-11-02 | 1981-05-07 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Calibration test circuit for optical measurement instruments - has generator supplying phased signals and averaging circuit |
| US6522983B1 (en) * | 2001-03-05 | 2003-02-18 | Tektronix, Inc. | Timebase calibration method for an equivalent time sampling digitizing instrument |
| CN1613187A (en) * | 2001-11-02 | 2005-05-04 | 微电***公司 | Encoder self-calibration apparatus and method |
| CN1769844A (en) * | 2004-10-13 | 2006-05-10 | 三丰株式会社 | Encoder output signal correction apparatus and method |
| CN200982984Y (en) * | 2006-08-22 | 2007-11-28 | 王悦 | A signal generator |
| US20080100484A1 (en) * | 2006-10-27 | 2008-05-01 | Variyam Pramodchandran N | Methods and apparatus to measure a voltage on an integrated circuit |
| US20080278493A1 (en) * | 2007-05-11 | 2008-11-13 | Transcat, Inc. | Metrology methods |
| CN101452067A (en) * | 2009-01-04 | 2009-06-10 | ***通信计量中心 | Signal generator automatic test and calibration system and method |
| CN202501835U (en) * | 2012-03-16 | 2012-10-24 | 成都飞机设计研究所 | Vertical type linear displacement sensor scaling/calibrating device |
| CN103759814A (en) * | 2014-01-25 | 2014-04-30 | 浙江大学 | Method for multi-frequency hybrid calibration of vibration measuring sensor |
| US20150130512A1 (en) * | 2012-07-02 | 2015-05-14 | Leine & Linde Ab | Encoder |
| CN205002746U (en) * | 2015-09-27 | 2016-01-27 | 吉林长光启元自动化控制有限公司 | Automatic calibrating device of encoder grating disc |
| CN106679710A (en) * | 2017-02-08 | 2017-05-17 | 亿航智能设备（广州）有限公司 | Magnetic encoder calibrating method and system |
| CN107655511A (en) * | 2017-11-03 | 2018-02-02 | 常州寻心电子科技有限公司 | A kind of magnetic encoder calibrating installation and method |
| CN108592977A (en) * | 2017-12-15 | 2018-09-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Dynamic calibration analog signal and digital signal synchronous collection analysis method and system |
| CN109000702A (en) * | 2018-05-16 | 2018-12-14 | 苏州汇川技术有限公司 | Encoder corrects system and method |
| CN208635828U (en) * | 2018-07-18 | 2019-03-22 | 南通市计量检定测试所（江苏省南通质量技术监督眼镜产品质量检验站、江苏省南通质量技术监督金银珠宝饰品产品质量检验站、江苏省大容量南通计量站、南通市大流量计量中心） | A kind of coder calibrating device |
| CN109708681A (en) * | 2019-02-19 | 2019-05-03 | 深圳市盛泰奇科技有限公司 | Encoder calibration method and device |
-
2019
- 2019-07-26 CN CN201910679903.XA patent/CN110375788B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2944213A1 (en) * | 1979-11-02 | 1981-05-07 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Calibration test circuit for optical measurement instruments - has generator supplying phased signals and averaging circuit |
| US6522983B1 (en) * | 2001-03-05 | 2003-02-18 | Tektronix, Inc. | Timebase calibration method for an equivalent time sampling digitizing instrument |
| CN1613187A (en) * | 2001-11-02 | 2005-05-04 | 微电***公司 | Encoder self-calibration apparatus and method |
| CN1769844A (en) * | 2004-10-13 | 2006-05-10 | 三丰株式会社 | Encoder output signal correction apparatus and method |
| CN200982984Y (en) * | 2006-08-22 | 2007-11-28 | 王悦 | A signal generator |
| US20080100484A1 (en) * | 2006-10-27 | 2008-05-01 | Variyam Pramodchandran N | Methods and apparatus to measure a voltage on an integrated circuit |
| US20080278493A1 (en) * | 2007-05-11 | 2008-11-13 | Transcat, Inc. | Metrology methods |
| CN101452067A (en) * | 2009-01-04 | 2009-06-10 | ***通信计量中心 | Signal generator automatic test and calibration system and method |
| CN202501835U (en) * | 2012-03-16 | 2012-10-24 | 成都飞机设计研究所 | Vertical type linear displacement sensor scaling/calibrating device |
| US20150130512A1 (en) * | 2012-07-02 | 2015-05-14 | Leine & Linde Ab | Encoder |
| CN103759814A (en) * | 2014-01-25 | 2014-04-30 | 浙江大学 | Method for multi-frequency hybrid calibration of vibration measuring sensor |
| CN205002746U (en) * | 2015-09-27 | 2016-01-27 | 吉林长光启元自动化控制有限公司 | Automatic calibrating device of encoder grating disc |
| CN106679710A (en) * | 2017-02-08 | 2017-05-17 | 亿航智能设备（广州）有限公司 | Magnetic encoder calibrating method and system |
| CN107655511A (en) * | 2017-11-03 | 2018-02-02 | 常州寻心电子科技有限公司 | A kind of magnetic encoder calibrating installation and method |
| CN108592977A (en) * | 2017-12-15 | 2018-09-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Dynamic calibration analog signal and digital signal synchronous collection analysis method and system |
| CN109000702A (en) * | 2018-05-16 | 2018-12-14 | 苏州汇川技术有限公司 | Encoder corrects system and method |
| CN208635828U (en) * | 2018-07-18 | 2019-03-22 | 南通市计量检定测试所（江苏省南通质量技术监督眼镜产品质量检验站、江苏省南通质量技术监督金银珠宝饰品产品质量检验站、江苏省大容量南通计量站、南通市大流量计量中心） | A kind of coder calibrating device |
| CN109708681A (en) * | 2019-02-19 | 2019-05-03 | 深圳市盛泰奇科技有限公司 | Encoder calibration method and device |
Non-Patent Citations (3)
| Title |
|---|
| P.A. ORTON ET.AL: "Automatic self-calibration of an incremental motion encoder", 《IMTC 2001. PROCEEDINGS OF THE 18TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE. REDISCOVERING MEASUREMENT IN THE AGE OF INFORMATICS》 * |
| 刘帅: "光栅编码器自动校准技术", 《测试测量技术与设备》 * |
| 周根荣等: "基于精密伺服的光电编码器的校准***设计", 《测控技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580033A (en) * | 2020-06-24 | 2020-08-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method for calibrating phase difference in dynamic calibration process |
| CN111580033B (en) * | 2020-06-24 | 2022-09-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method for calibrating phase difference in dynamic calibration process |
| CN116868079A (en) * | 2022-11-10 | 2023-10-10 | 长沙天恒测控技术有限公司 | Zero phase calibration method, computer device and storage medium |
| CN116868079B (en) * | 2022-11-10 | 2024-02-27 | 长沙天恒测控技术有限公司 | Zero phase calibration method, computer device and storage medium |
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