CN101308017A - Batteries plate thickness on-line measurement method utilizing baseband thickness for self-calibration - Google Patents
Batteries plate thickness on-line measurement method utilizing baseband thickness for self-calibration Download PDFInfo
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- CN101308017A CN101308017A CNA2008100646329A CN200810064632A CN101308017A CN 101308017 A CN101308017 A CN 101308017A CN A2008100646329 A CNA2008100646329 A CN A2008100646329A CN 200810064632 A CN200810064632 A CN 200810064632A CN 101308017 A CN101308017 A CN 101308017A
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Abstract
Disclosed is an on-line measurement method of battery pole plate thickness, which utilizes the thickness of a base band for automatic calibration, and the invention relates to a method for on-line measurement of battery pole plate thickness by adopting the laser differential detection. The method overcomes the defect of low measuring precision of the prior art due to the failure of on-line real-time automatic calibration. The method adopts the following steps that: a battery pole plate moves on a coated paper production line with constant speed; two laser displacement transducers arranged above the upper surface and under the lower surface of the battery pole plate respectively measure the distance value thereof relative to the battery pole plate; the program in a computer is controlled for calculating base band sampled data and SUMB of the two laser displacement transducers at the same time; the program in the computer is controlled for calculating hits in a coating area and SUMM of the two laser displacement transducers at the same time; and the program in the computer is controlled for calculating the thickness of the battery pole plate according to the formula of (SUMM-SUMB) xK+Db, wherein K is a constant; and Db is the base band thickness.
Description
Technical field
The invention belongs to the manufacture field of lithium ion battery pole plate, be specifically related to adopt laser differential to detect the method for the on-line measurement that realizes battery pole plates thickness.
Background technology
Battery pole plates is a material of producing lithium ion compound battery, and as shown in Figure 2, it is that a kind of thickness only is tens microns to 500 microns continuous band-shaped product, is divided into coated portion 1 that scribbles the lithium ion compound and the baseband portion 2 that is not coated with material on its surface.It is a core material of producing battery, and the control accuracy of battery pole plates thickness directly influences the quality of battery product.Therefore, carrying out accurately to the thickness of battery pole plates, real-time online measuring and control are of great practical significance to producing high-quality battery.Because the thickness of battery pole plates is minimum, the drift error of sensor measurement data and the factors such as temperature deformation of installing mechanism all can cause very big measuring error in the tested battery pole plates thickness measure process, so will realize that must carry out online in real time to measurement to the online accurate measurement of tested battery pole plates thickness calibrates automatically.The existing method that detects battery pole plates thickness is with the battery pole plates on the β transmission of radiation streamline, receive the β ray that penetrates battery pole plates on another surface of battery pole plates with photomultiplier, the variation that changes caused responsive electric current according to the β ray energy that receives on the photomultiplier detects the variation of battery pole plates thickness.The defective that this method exists is: the β radiation exposure be a zone, because the baseband portion 2 of battery pole plates is narrow and it is slow to adopt the β ray to gather the reaction of variation in thickness signal, therefore can't utilize the result of 2 pairs of measurements of baseband portion of battery pole plates to carry out online in real time and calibrate automatically, therefore the data precision that records is low.
Summary of the invention
The purpose of this invention is to provide a kind of battery pole plates thickness On-line Measuring Method of utilizing base band thickness to carry out self-correcting, to overcome prior art because of realizing the low defective of online real-time automatic calibrating measuring accuracy.It is realized by following step: one, battery pole plates 3 on coating line with constant motion; Two, two laser displacement sensors 4 that are arranged on battery pole plates 3 upper surfaces tops and lower surface below record the distance value of two laser displacement sensors 4 with respect to battery pole plates 3 upper surfaces and lower surface respectively; The line of two laser displacement sensors 4 is perpendicular to battery pole plates 3; Three, control computer 5 is sampled to the distance value that two laser displacement sensors 4 record respectively by A/D sample circuit 6; Four, the procedure identification in the control computer 5 go out the pairing distance value sampled data of baseband portion of battery pole plates 3, thus obtain two laser displacement sensors 4 of synchronization responsive baseband portion sampled data and SUMB; Five, the procedure identification in the control computer 5 go out the pairing distance value sampled data of dispensing area of battery pole plates 3, thus obtain two laser displacement sensor 4 sensitivities of synchronization applying area thickness sampled data and SUMM; Six, the program in the control computer 5 is pressed the thickness that (SUMM-SUMB) * K+Db calculates battery pole plates 3, and wherein K is a constant; Db is a base band thickness.
Method proposed by the invention, utilize the base band thickness information of battery pole plates that the measurement drift error of system is carried out the real-time online self-correcting, and then the long-term drift error of introducing owing to the temperature deformation of sensor drift and scanning support structure in the elimination measurement data, adopt this method can greatly improve the precision of battery pole plates thickness on-line measurement.Because the laser radiation zone of laser displacement sensor 4 outputs is minimum, can very easily distinguish the baseband portion and the coated portion of battery pole plates, therefore can utilize the baseband portion of battery pole plates to realize online self-correcting, thereby in testing result, eliminate the measuring error that factors such as drift error and temperature deformation cause.
Description of drawings
Fig. 1 is a synoptic diagram of the present invention, and Fig. 2 is the synoptic diagram of battery pole plates.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.Present embodiment is made up of following step: one, battery pole plates 3 on coating line with constant motion, for example 6 meters/minute; Two, two laser displacement sensors 4 that are arranged on battery pole plates 3 upper surfaces tops and lower surface below record the distance value of two laser displacement sensors 4 with respect to battery pole plates 3 upper surfaces and lower surface respectively; The line of two laser displacement sensors 4 is perpendicular to battery pole plates 3; Wherein laser sensor adopts Keyemce LK-G10 type laser displacement sensor.Three, control computer 5 is sampled to the distance value that two laser displacement sensors 4 record respectively by A/D sample circuit 6; Four, the procedure identification in the control computer 5 go out the pairing distance value sampled data of baseband portion of battery pole plates 3, thus obtain two laser displacement sensors 4 of synchronization responsive baseband portion sampled data and SUMB; Five, the procedure identification in the control computer 5 go out the pairing distance value sampled data of dispensing area of battery pole plates 3, thus obtain two laser displacement sensor 4 sensitivities of synchronization applying area thickness sampled data and SUMM; Six, the program in the control computer 5 is pressed the thickness that (SUMM-SUMB) * K+Db calculates battery pole plates 3, and wherein K is a constant, and for example the range of laser displacement sensor 4 is ± 1mm, and A/D sample circuit 6 adopts 16 bit resolutions, then K=1/32768; Db is a base band thickness.Because Db is a constant, SUMB is for its real-time measurement values and contain common mode drift error in the measurement data, so the influence of common mode drift error to the thickness measure of tested battery pole plates eliminated in the computing of SUMM-SUMB, and then eliminated in the measurement data because the long-term drift error that the temperature modification of sensor drift and scanning support structure etc. are introduced has realized the on-line automatic calibration of measuring system.
Embodiment two: the difference of present embodiment and embodiment one is: in first step, with battery pole plates 3 on coating line in the constant motion, two laser displacement sensors 4 are turned back along the Width of battery pole plates 3 and are scanned the upper and lower surface of battery pole plates 3, two laser displacement sensor 4 synchronous constant motions in the scanning process.So be provided with, more comprehensively the measurement of battery pole plates thickness.
Claims (2)
1, the battery pole plates thickness On-line Measuring Method of utilizing base band thickness to carry out self-correcting is characterized in that it realizes by following step: one, battery pole plates (3) on coating line with constant motion; Two, two laser displacement sensors (4) that are arranged on below battery pole plates (3) upper surface top and the lower surface record the distance value of two laser displacement sensors (4) with respect to battery pole plates (3) upper surface and lower surface respectively; The line of two laser displacement sensors (4) is perpendicular to battery pole plates (3); Three, control computer (5) is sampled to the distance value that two laser displacement sensors (4) record respectively by A/D sample circuit (6); Four, the procedure identification in the control computer (5) goes out the pairing distance value sampled data of baseband portion of battery pole plates (3), thus obtain two laser displacement sensors of synchronization (4) responsive baseband portion sampled data and SUMB; Five, the procedure identification in the control computer (5) goes out the pairing distance value sampled data of dispensing area of battery pole plates (3), thus obtain the responsive applying area thickness of two laser displacement sensors of synchronization (4) sampled data and SUMM; Six, the program in the control computer (5) is pressed the thickness that (SUMM-SUMB) * K+Db calculates battery pole plates (3), and wherein K is a constant; Db is a base band thickness.
2, the battery pole plates thickness On-line Measuring Method of utilizing base band thickness to carry out self-correcting according to claim 1, it is characterized in that in first step, with battery pole plates (3) on coating line in the constant motion, two laser displacement sensors (4) are turned back along the Width of battery pole plates (3) and are scanned the upper and lower surface of battery pole plates (3), the synchronous constant motion of two laser displacement sensors (4) in the scanning process.
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| CN2008100646329A CN101308017B (en) | 2008-05-30 | 2008-05-30 | Batteries plate thickness on-line measurement method utilizing baseband thickness for self-calibration |
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| CN2008100646329A CN101308017B (en) | 2008-05-30 | 2008-05-30 | Batteries plate thickness on-line measurement method utilizing baseband thickness for self-calibration |
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| CN101308017A true CN101308017A (en) | 2008-11-19 |
| CN101308017B CN101308017B (en) | 2010-09-01 |
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| CN103940350A (en) * | 2014-02-19 | 2014-07-23 | 超威电源有限公司 | Coating-machine online pole plate thickness measurement device and thickness measurement adjustment method |
| CN104236454A (en) * | 2013-06-20 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Laser measurement device and calibration mechanism thereof |
| CN104266626A (en) * | 2014-10-23 | 2015-01-07 | 成都卓微科技有限公司 | Multifunctional thickness gauge |
| CN105698689A (en) * | 2014-11-28 | 2016-06-22 | 北新集团建材股份有限公司 | Scanning pattern measuring control method of board appearance |
| CN106152952A (en) * | 2016-07-26 | 2016-11-23 | 华中科技大学 | A kind of can the differential type online thickness measurement with laser system of multiple spot correction and measuring method thereof |
| CN106289080A (en) * | 2016-10-19 | 2017-01-04 | 厦门理工学院 | A kind of on-line checking labeling method of battery pole plates coating line |
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| CN108168442A (en) * | 2018-03-28 | 2018-06-15 | 河北省同创交通工程配套产品产业技术研究院 | A kind of waterstop tongue and groove dynamic measurement device and its measuring method |
| CN110017804A (en) * | 2018-01-08 | 2019-07-16 | 深南电路股份有限公司 | A kind of thickness measurement system of PCB |
| CN110108239A (en) * | 2019-05-21 | 2019-08-09 | 东莞维科电池有限公司 | Pole piece new Methods of Quality Information Acquisition method, system and equipment |
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| US4276480A (en) * | 1979-09-28 | 1981-06-30 | Accuray Corporation | Sensor position independent material property determination using radiant energy |
| JP3480857B2 (en) * | 1994-10-31 | 2003-12-22 | 東芝機械株式会社 | Method and apparatus for measuring thickness of coated sheet |
| CN101063606A (en) * | 2006-04-28 | 2007-10-31 | 华硕电脑股份有限公司 | Measurement method, measurement system and measurement module for heat conducting paste thickness |
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| CN104236454A (en) * | 2013-06-20 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Laser measurement device and calibration mechanism thereof |
| CN108132018A (en) * | 2013-06-20 | 2018-06-08 | 安溪县中磊设备制造有限公司 | A kind of calibration method |
| CN104236454B (en) * | 2013-06-20 | 2018-02-06 | 江苏润阳物流器械科技有限公司 | Laser measuring device for measuring and its correcting mechanism |
| CN103940350B (en) * | 2014-02-19 | 2017-01-04 | 超威电源有限公司 | Coating machine online pole plate measuring thickness device and thickness measuring method of adjustment |
| CN103940350A (en) * | 2014-02-19 | 2014-07-23 | 超威电源有限公司 | Coating-machine online pole plate thickness measurement device and thickness measurement adjustment method |
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| CN106716058A (en) * | 2014-09-26 | 2017-05-24 | 株式会社神户制钢所 | Shape measurement device and shape measurement method |
| CN104266626A (en) * | 2014-10-23 | 2015-01-07 | 成都卓微科技有限公司 | Multifunctional thickness gauge |
| CN105698689A (en) * | 2014-11-28 | 2016-06-22 | 北新集团建材股份有限公司 | Scanning pattern measuring control method of board appearance |
| CN106152952B (en) * | 2016-07-26 | 2017-10-31 | 华中科技大学 | It is a kind of can multiple spot amendment the online thickness measurement with laser system of differential type and its measuring method |
| CN106152952A (en) * | 2016-07-26 | 2016-11-23 | 华中科技大学 | A kind of can the differential type online thickness measurement with laser system of multiple spot correction and measuring method thereof |
| CN106370116B (en) * | 2016-10-14 | 2019-02-26 | 四川赛尔雷新能源科技有限公司 | A kind of electrolyte coating detection method and system |
| CN106370116A (en) * | 2016-10-14 | 2017-02-01 | 四川赛尔雷新能源科技有限公司 | Method and system for detecting electrolyte coating |
| CN106289080A (en) * | 2016-10-19 | 2017-01-04 | 厦门理工学院 | A kind of on-line checking labeling method of battery pole plates coating line |
| CN106524927A (en) * | 2016-10-19 | 2017-03-22 | 厦门理工学院 | System and method for online measurement of battery pole plate thickness capable of automatic path correction |
| CN106500642A (en) * | 2016-10-19 | 2017-03-15 | 厦门理工学院 | A kind of method along projected route on-line measurement battery plate thickness |
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| CN108168442A (en) * | 2018-03-28 | 2018-06-15 | 河北省同创交通工程配套产品产业技术研究院 | A kind of waterstop tongue and groove dynamic measurement device and its measuring method |
| CN108168442B (en) * | 2018-03-28 | 2023-09-08 | 河北省同创交通工程配套产品产业技术研究院 | Dynamic measurement method of dynamic measurement device for concave-convex groove of water stop |
| CN110108239A (en) * | 2019-05-21 | 2019-08-09 | 东莞维科电池有限公司 | Pole piece new Methods of Quality Information Acquisition method, system and equipment |
| CN114096799A (en) * | 2019-08-27 | 2022-02-25 | 株式会社Lg新能源 | Apparatus and method for measuring thickness of unit cell |
| CN114096799B (en) * | 2019-08-27 | 2024-04-26 | 株式会社Lg新能源 | Apparatus and method for measuring thickness of unit cell |
| CN113720273A (en) * | 2021-09-01 | 2021-11-30 | 沈阳理工大学 | Wallboard workpiece detection device and detection method based on laser profile scanning |
| CN113720273B (en) * | 2021-09-01 | 2023-09-22 | 沈阳理工大学 | Wallboard workpiece detection device and detection method based on laser profile scanning |
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Effective date of registration: 20220624 Address after: 215000 building x, No.7 Baihe street, Suzhou Industrial Park, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: SUZHOU JIANGJIN AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 150001 No. 92 West straight street, Nangang District, Heilongjiang, Harbin Patentee before: HARBIN INSTITUTE OF TECHNOLOGY |
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