CN109682818A - A kind of device and method of real-time measurement cellulose or lignin material bulking coefficient - Google Patents
A kind of device and method of real-time measurement cellulose or lignin material bulking coefficient Download PDFInfo
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- CN109682818A CN109682818A CN201910153488.4A CN201910153488A CN109682818A CN 109682818 A CN109682818 A CN 109682818A CN 201910153488 A CN201910153488 A CN 201910153488A CN 109682818 A CN109682818 A CN 109682818A
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- cellulose
- lignin material
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- lignin
- coefficient
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8444—Fibrous material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of real-time measurement cellulose or the device and methods of lignin material bulking coefficient, are related to cellulose, lignin material drying shrinkage bulking coefficient testing field.Described device includes signal processor and optoelectronic induction component, the signal processor is connected with optoelectronic induction component by signal wire, the electronic image signal of cellulose or lignin material that the optoelectronic induction component is used to obtain infiltration in a liquid, the electronic image signal handles the electronic image signal of different time points, is calculated the cellulose at corresponding time point or the size of lignin material by circuit real-time transmission to signal processor, signal processor.The measurement method includes electronic image signal acquisition and processing, the calculating of cellulose or lignin material size and bulking coefficient.The bulking coefficient that the device of the invention and its measurement method are suitable for cellulose, lignin possesses drying shrinkage bulking performance materials with other is tested, and provides the method for material property measurement for pulping and paper-making industry.
Description
Technical field
The invention belongs to noncontacting measurement field, the bulking performance for being related to timber composition material cellulose and lignin is led
A kind of domain, and in particular to the device and method of real-time measurement cellulose or lignin material bulking coefficient.
Background technique
Lumber fibre is applied very wide since ancient times, is most widely used in paper pulp papermaking, due to its is renewable, without dirt
The advantages that dye, rich content, has all been concerned since consistent.Lumber fibre is from the inside to surface by cavity, S3, S2, S1 and P layers of group
At, and each layer is made of cellulose and hemicellulose, lignin.Research for timber bulking performance is existing many, very much
Scholar has carried out the research to cellulose and lignin bulking performance.But it does not propose a kind of relatively effective real-time
Measure the device and measurement method of cellulose or lignin material bulking coefficient.
Summary of the invention
The purpose of the present invention is in view of the above shortcomings of the prior art, provide a kind of real-time measurement cellulose or lignin
The device and its measurement method of material bulking coefficient.Obtain infiltration cellulose in a liquid, wooden in real time by industrial camera
The image of cellulose fiber element or lignin material, carries out cellulose or lignin material size based on image procossing on computers
It calculates, cellulose or lignin material size to different time points can calculate bulking coefficient after calculating.
The purpose of the present invention can be achieved through the following technical solutions.
The device of a kind of real-time measurement cellulose or lignin material bulking coefficient, including signal processor and optoelectronic induction
Component, the signal processor and optoelectronic induction component are connected by signal wire, and the optoelectronic induction component exists for obtaining infiltration
The electronic image of cellulose or lignin material in liquid, the electronic image signal is by circuit real-time transmission at signal
Manage device, signal processor processing is carried out to electronic image signal and cellulose to corresponding time point or lignin material size into
Row calculates.
Preferably, described device further includes the bracket of adjustable height and angle, and the optoelectronic induction component is mounted on branch
On frame.
Preferably, the bracket includes fixture, and the optoelectronic induction component is rack-mount by fixture.
Preferably, the fixture locks optoelectronic induction component, retaining part of the fixture in optoelectronic induction component by screw
Equipped with latex film, grip friction power is increased while protecting optoelectronic induction component.
Preferably, the signal processor is the computer with display screen.
Preferably, the optoelectronic induction component is CCD industrial camera.The CCD industrial camera at a time interval from
Dynamic to obtain image, parameter is as follows: CCD type number: MV-GED200M-1/2 " CCD black and white；Effective pixel points: 1600H × 1220V
(2,000,000)；Pixel Dimensions: 4.4 μ ms μm；Default resolution ratio: > 45dB；Pixel bit depth: 12bit；The minimum exposure time:
0.062 millisecond；Acquisition mode: continuous, soft triggering, hardware trigger；Frame rate: 27.
The present invention also provides the measurement method of a kind of real-time measurement cellulose or the device of lignin material bulking coefficient,
It the described method comprises the following steps:
(1) cellulose or lignin material are put in the corresponding image acquisition areas of optoelectronic induction component；
(2) optoelectronic induction component is opened, the electronic image for infiltrating cellulose or lignin material in a liquid is obtained；
(3) electronic image signal is by circuit real-time transmission to signal processor, and signal processor is to electronic image signal
It carries out processing and the cellulose to corresponding time point or lignin material length and width calculates；
(4) signal processor calculates the coefficient of expansion of the cellulose or lignin material that infiltrate different time in a liquid.
Preferably, the length of cellulose or lignin material in step (3), the method for width measurement the following steps are included:
A) gradation conversion is carried out to image, color RGB image is converted into grayscale image；
B) grayscale image is converted into binary map, using lower threshold, such as: threshold=20/255~100/
255；
C) by " edge " sentence and " canny " operator, edge line extraction operation is carried out to image, obtains cellulose or wood
Lignin material profile；
D) length in pixels, the width for calculating cellulose or lignin material, are recorded.
Preferably, in step (4) bulking coefficient calculation method are as follows:
A) length or width bulking coefficientWherein, d0For initial length or width, dnFor fiber
The length or width that acquired image calculates when element or lignin material infiltrate n-th second in a liquid；
B) area bulking coefficientWherein, l0、d0Respectively cellulose or wood
Initial length, the width of lignin material；ln、dnRespectively cellulose or lignin material infiltrate acquired at n-th second in a liquid
The length of image calculating, width.
Preferably, the liquid is water or organic solvent.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1, optoelectronic induction component of the invention can obtain image and the transmission of cellulose or lignin material infiltration in real time
To signal processor；
2, image processing algorithm of the invention can calculate cellulose or lignin material size according to image, and calculate every
The bulking coefficient at a time point；
3, the present invention provides the devices and its measurement side of a kind of real-time measurement cellulose or lignin material bulking coefficient
Method.
Detailed description of the invention
Fig. 1 is measuring device schematic diagram；
Fig. 2 is industrial camera and its clamp part figure；
Fig. 3 is cellulose or lignin material image procossing exemplary view；
In figure: 1- computer, 2- phase machine clamp, 3- bracket, 4- industrial camera, 5- glass dish, 6- lignin material.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment:
Present embodiments provide the device and its measurement method of a kind of real-time measurement lignin material bulking coefficient.
As shown in Fig. 1, described device includes consisting of: computer 1；Phase machine clamp 2；Clamp bracket 3；Industrial camera
4；Glass dish container 5；Lignin material sample 6.
Wherein, industrial camera 4 obtains image automatically at a time interval；Computer 1 is connect with industrial camera 4,
Image data real-time delivery；Phase machine clamp 2 divides for two parts, is locked with screw, and the retaining part of industrial camera 4 is using cream
Glue film interval increases grip friction power while protecting camera, as shown in Figure 2；Clamp bracket 3 can regulate and control height and angle,
Realize the regulation of camera position, angle；Computer 1 in real time handles the image of receiving, is analyzed, and sample bulking system is calculated
Number.
Described image processing method the following steps are included:
1) sample 6 is put in glass dish 5；
2) industrial camera 4 is opened, starts real-time image acquisition, at interval of one image of acquisition in 1 second；
3) computer 1 obtains Sample Image in real time, carries out image procossing, as shown in Fig. 3, the specific steps are as follows:
A) gradation conversion is carried out to image, i.e., color RGB image is converted into grayscale image, such as a figure in Fig. 3；
B) grayscale image is converted into binary map, using lower threshold, such as 50/255, such as the b figure in Fig. 3；
C) by " edge " sentence and " canny " operator, edge line extraction operation is carried out to image, obtains sample profile,
Such as the c figure in Fig. 3；
D) length in pixels, the width for calculating sample are recorded such as the d figure in Fig. 3.
4) after obtaining the specimen length of a series of images, width, the coefficient of expansion relevant to infiltrating time is calculated.Bulking system
Several calculation methods are as follows:
A) length or width bulking coefficientWherein, d0For initial length or width, dnIt is n-th second
The length or width that acquired image calculates；
B) area bulking coefficientWherein, l0、d0Respectively sample is initial
Length, width；ln、dnThe length of respectively n-th second acquired image calculating, width.
The above, only the invention patent preferred embodiment, but the scope of protection of the patent of the present invention is not limited to
This, anyone skilled in the art is in the range disclosed in the invention patent, according to the present invention the skill of patent
Art scheme and its patent of invention design are subject to equivalent substitution or change, belong to the scope of protection of the patent of the present invention.
Claims (10)
1. the device of a kind of real-time measurement cellulose or lignin material bulking coefficient, which is characterized in that including signal processor
With optoelectronic induction component, the signal processor is connected with optoelectronic induction component by signal wire, and the optoelectronic induction component is used for
The electronic image for infiltrating cellulose or lignin material in a liquid is obtained, the electronic image signal is passed in real time by circuit
It is sent to signal processor, signal processor carries out processing to electronic image signal and to the cellulose or lignin at corresponding time point
Scantling is calculated.
2. the device of real-time measurement cellulose according to claim 1 or lignin material bulking coefficient, which is characterized in that
Described device further includes the bracket of adjustable height and angle, and the optoelectronic induction component is rack-mount.
3. the device of real-time measurement cellulose according to claim 2 or lignin material bulking coefficient, which is characterized in that
The bracket includes fixture, and the optoelectronic induction component is rack-mount by fixture.
4. the device of real-time measurement cellulose according to claim 3 or lignin material bulking coefficient, which is characterized in that
The fixture locks optoelectronic induction component by screw, and fixture is equipped with latex film in the retaining part of optoelectronic induction component.
5. the device of real-time measurement cellulose according to claim 1 or lignin material bulking coefficient, which is characterized in that
The signal processor is the computer with display screen.
6. the device of real-time measurement cellulose according to claim 1 or lignin material bulking coefficient, which is characterized in that
The optoelectronic induction component is CCD industrial camera.
7. a kind of measurement side using real-time measurement cellulose described in claim 1 or the device of lignin material bulking coefficient
Method, which comprises the following steps:
(1) cellulose or lignin material are put in the corresponding image acquisition areas of optoelectronic induction component；
(2) optoelectronic induction component is opened, the electronic image for infiltrating cellulose or lignin material in a liquid is obtained；
(3) electronic image signal carries out electronic image signal by circuit real-time transmission to signal processor, signal processor
It handles and the cellulose to corresponding time point or lignin material length and width calculates；
(4) signal processor calculates the coefficient of expansion of the cellulose or lignin material that infiltrate different time in a liquid.
8. the measurement side according to claim 7 using real-time measurement cellulose or the device of lignin material bulking coefficient
Method, which is characterized in that cellulose described in step (3) or lignin material length and width calculation method the following steps are included:
A) gradation conversion is carried out to image, color RGB image is converted into grayscale image；
B) grayscale image is converted into binary map, threshold value is 20/255~100/255；
C) by edge sentence and canny operator, edge line extraction operation is carried out to image, obtains cellulose or lignin material
Profile；
D) length in pixels, the width for calculating cellulose or lignin material, are recorded.
9. the measurement side according to claim 7 using real-time measurement cellulose or the device of lignin material bulking coefficient
Method, which is characterized in that the calculation method of bulking coefficient in step (4) are as follows:
A) length or width bulking coefficientWherein, d0For initial length or width, dnFor cellulose or wood
The length or width that acquired image calculates when lignin material infiltrates n-th second in a liquid；
B) area bulking coefficientWherein, l0、d0Respectively cellulose or lignin
Initial length, the width of material；ln、dnAcquired image when respectively cellulose or lignin material infiltrate n-th second in a liquid
The length of calculating, width.
10. according to any one of claims 7 to 9 using real-time measurement cellulose or the dress of lignin material bulking coefficient
The measurement method set, which is characterized in that the liquid is water or organic solvent.
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| CN201910153488.4A CN109682818A (en) | 2019-02-28 | 2019-02-28 | A kind of device and method of real-time measurement cellulose or lignin material bulking coefficient |
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| CN201910153488.4A CN109682818A (en) | 2019-02-28 | 2019-02-28 | A kind of device and method of real-time measurement cellulose or lignin material bulking coefficient |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272759A (en) * | 2020-03-23 | 2020-06-12 | 浙江理工大学 | Method for detecting swelling performance of printing auxiliary agent on fibers |
| CN112798459A (en) * | 2020-12-31 | 2021-05-14 | 宁波诺丁汉新材料研究院有限公司 | Full-automatic lignocellulose determinator and determination method |
| KR20220012732A (en) * | 2020-07-23 | 2022-02-04 | 한국과학기술연구원 | Method for estimating postmortem interval using real-time analysis of bacteria and system for the same |
| CN115308210A (en) * | 2022-08-19 | 2022-11-08 | 珠海华伦造纸科技有限公司 | System and method for rapidly measuring morphological parameters of papermaking fibers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020120410A1 (en) * | 2000-11-28 | 2002-08-29 | Behnam Pourdeyhimi | Apparatus and method for analyzing liquid absorbency/desorbency, pore volume distribution and in-plane wicking/absorption |
| DE10326489A1 (en) * | 2003-06-10 | 2005-01-05 | Igt Emus Gmbh | Water absorption and wetting properties measuring device for use with absorbent paper, e.g. hand towels or diapers, comprises computer controlled optical imaging equipment together with frame-grabbing and image processing personal computer |
| CN101603819A (en) * | 2009-07-23 | 2009-12-16 | 中国林业科学研究院木材工业研究所 | A kind of real-time measurement method for wood deformation microstructure characteristics |
| CN107388962A (en) * | 2017-07-06 | 2017-11-24 | 南京林业大学 | A kind of on-line measuring device and detection method of wooden boards warpage |
| WO2019010897A1 (en) * | 2017-07-14 | 2019-01-17 | 华南理工大学 | Dynamic characterization method for micro-nano celluloses |
| CN209764735U (en) * | 2019-02-28 | 2019-12-10 | 华南理工大学 | Device for measuring wet expansion coefficient of cellulose or lignin material in real time |
-
2019
- 2019-02-28 CN CN201910153488.4A patent/CN109682818A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020120410A1 (en) * | 2000-11-28 | 2002-08-29 | Behnam Pourdeyhimi | Apparatus and method for analyzing liquid absorbency/desorbency, pore volume distribution and in-plane wicking/absorption |
| DE10326489A1 (en) * | 2003-06-10 | 2005-01-05 | Igt Emus Gmbh | Water absorption and wetting properties measuring device for use with absorbent paper, e.g. hand towels or diapers, comprises computer controlled optical imaging equipment together with frame-grabbing and image processing personal computer |
| CN101603819A (en) * | 2009-07-23 | 2009-12-16 | 中国林业科学研究院木材工业研究所 | A kind of real-time measurement method for wood deformation microstructure characteristics |
| CN107388962A (en) * | 2017-07-06 | 2017-11-24 | 南京林业大学 | A kind of on-line measuring device and detection method of wooden boards warpage |
| WO2019010897A1 (en) * | 2017-07-14 | 2019-01-17 | 华南理工大学 | Dynamic characterization method for micro-nano celluloses |
| CN209764735U (en) * | 2019-02-28 | 2019-12-10 | 华南理工大学 | Device for measuring wet expansion coefficient of cellulose or lignin material in real time |
Non-Patent Citations (6)
| Title |
|---|
| 周竹 等: "高光谱成像技术及其在木材无损检测中的研究进展", 《浙江农林大学学报》, vol. 32, no. 03, pages 458 - 463 * |
| 敬凌霄 等: "\"织物动态导湿仪器的设计与应用\"", 《毛纺科技》, vol. 38, no. 05, pages 56 - 59 * |
| 李宗雨 等: "\"基于MATLAB图像处理的中空纤维膜截面尺寸的测量\"", 《膜科学与技术》, vol. 38, no. 04, pages 43 - 48 * |
| 肖威: "\"稻米籽粒湿线膨胀系数的研究\"", 《农机化研究》, vol. 32, no. 12, pages 1 - 3 * |
| 马尔妮: "\"木材的水分吸着和干缩湿胀――从静态到动态的研究\"", 《湖北农业科学》, vol. 52, no. 21, pages 5121 - 5125 * |
| 黄日明 等: "南方红豆杉木材理化性质的研究", 《福建林学院学报》, vol. 33, no. 4, pages 377 - 380 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272759A (en) * | 2020-03-23 | 2020-06-12 | 浙江理工大学 | Method for detecting swelling performance of printing auxiliary agent on fibers |
| KR20220012732A (en) * | 2020-07-23 | 2022-02-04 | 한국과학기술연구원 | Method for estimating postmortem interval using real-time analysis of bacteria and system for the same |
| KR102433769B1 (en) | 2020-07-23 | 2022-08-19 | 한국과학기술연구원 | Method for estimating postmortem interval using real-time analysis of bacteria and system for the same |
| CN112798459A (en) * | 2020-12-31 | 2021-05-14 | 宁波诺丁汉新材料研究院有限公司 | Full-automatic lignocellulose determinator and determination method |
| CN115308210A (en) * | 2022-08-19 | 2022-11-08 | 珠海华伦造纸科技有限公司 | System and method for rapidly measuring morphological parameters of papermaking fibers |
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