CN110412026A - A kind of tobacco aromaticss preparation accuracy method for quickly detecting - Google Patents

A kind of tobacco aromaticss preparation accuracy method for quickly detecting Download PDF

Info

Publication number
CN110412026A
CN110412026A CN201910744039.7A CN201910744039A CN110412026A CN 110412026 A CN110412026 A CN 110412026A CN 201910744039 A CN201910744039 A CN 201910744039A CN 110412026 A CN110412026 A CN 110412026A
Authority
CN
China
Prior art keywords
value
feed liquid
quickly detecting
tobacco aromaticss
image
Prior art date
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.)
Granted
Application number
CN201910744039.7A
Other languages
Chinese (zh)
Other versions
CN110412026B (en
Inventor
刘博�
李自娟
阮春伟
高杨
孙嘉
张爱华
苗旺昌
方汀
孙一鹤
赵力源
贾晓慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiakou Cigarette Factory Co Ltd
Original Assignee
Zhangjiakou Cigarette Factory Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangjiakou Cigarette Factory Co Ltd filed Critical Zhangjiakou Cigarette Factory Co Ltd
Priority to CN201910744039.7A priority Critical patent/CN110412026B/en
Publication of CN110412026A publication Critical patent/CN110412026A/en
Application granted granted Critical
Publication of CN110412026B publication Critical patent/CN110412026B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/80Indicating pH value
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The invention discloses a kind of tobacco aromaticss to prepare accuracy method for quickly detecting.The chromogenic reaction principle of this method support pH test paper, with machine vision technique (HSV algorithm) to Color Quantization by Color, improve the precision of rapid detection method, solve the problems, such as that production scene feed liquid can not be detected quickly, a kind of new method is provided for live product control comprising following steps: acquisition standard feed liquid test paper color development area image;Image quantization is carried out using HSV;Establish standard feed liquid H Value Data library;Production samples and calculates H value;Sentence according to CD method different;It is rechecked using SPC method.

Description

A kind of tobacco aromaticss preparation accuracy method for quickly detecting
Technical field
The present invention is suitable for careless cigarette industrial system, and specially a kind of tobacco aromaticss prepare accuracy method for quickly detecting.
Background technique
In tobacco industry production, tobacco aromaticss are indispensable aromatizing agents, are used for tobacco leaf surface spray flavoring, mention High tobacco leaf fragrance characteristic reduces blade grade difference.Blade charging is the important production process of tobacco industry.
The preparation of essence spice for cigarette is to be weighed to modulate by operator according to formula rate by various of monomer perfume base At following mistake easily occurs in allocation process: 1, monomer is replaced;2, monomer weighing mistake;3, stirring is uneven.The above mistake or behaviour Making mistakes all will lead to feed liquid and does not meet manufacturing technique requirent, if such feed liquid, which is applied on tobacco leaf or pipe tobacco, will lead to product Taste variation is inhaled, the suction of product sensory product is unqualified, eventually leads to great quality accident, damages to image product, must so having Gate of the quality monitoring is maintained strict control in production link, improve live control ability.
The method of inspection that existing general essence spice for cigarette in the industry prepares accuracy is refractometry, and instrument is Abbe Refractometer determines whether feed liquid process for preparation is accurate by the refractive index of soluble solid in measurement feed liquid.But this Requirement of the method by the environmental factors such as measurement environment temperature, pressure and peopleware, so be not suitable for field quick detection, It is also not suitable for layman's use.Such method is limited to more for production, and not being able to satisfy site technique person's inspection makes With.
Since tobacco aromaticss are a kind of composite fluid feed liquids, it includes a variety of different material bases to require to press according to factory formula Ratio is blent, and the free radical in every kind of material base is different, and the pH value presented is different, the pH of feed liquid after material base mixes in proportion Value has specificity.This provides new angle for the inspection that essence spice for cigarette prepares accuracy.
In general, there are two types of methods for the measurement of pH value: chemical sensor method and artificial colorimetric ocular estimate.
First method is commonly used in the scientific research test high to required precision, can accurately be quickly obtained high-precision The pH value of degree, and in most cases the considerations of for cost and the particularity of production scene, is just sufficiently achieved with colorimetric method Solution ph is measured in most of industrial productions in the requirement of precision aspect.Usual colorimetric ocular estimate is to be carried out by naked eyes to color Matching identification is compared to judge to presentation color and with reference colour library current molten by certain medium such as pH test paper Liquid pH value.But there is also apparent drawbacks for this method, such as compare the light source difference of environment, lack objective appraisal mark The presence of the factors such as standard, judging result can generate subjective meaning and sentence or judge by accident, and then influence use and the product of result Judging result.
In view of the above circumstances, it if carrying out essence spice for cigarette using digital image processing techniques prepares Test of accuracy, mentions High pH measurement accuracy will overcome the shortcomings of that artificial vision identifies, this has actual industrial production significantly existing Sincere justice.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of tobacco aromaticss to prepare accuracy method for quickly detecting.The present invention according to The chromogenic reaction principle of support pH test paper improves tobacco aromaticss with machine vision technique (HSV algorithm) to Color Quantization by Color The precision for preparing accuracy rapid detection method, solves the problems, such as that production scene feed liquid can not be detected quickly.
The technical solution adopted by the present invention to solve the technical problems are as follows:
A kind of tobacco aromaticss preparation accuracy method for quickly detecting, comprising the following steps:
Step 1 acquires standard feed liquid test paper color development area image;
Step 2 carries out image quantization using HSV
The tone H, saturation degree S and the lightness V that acquire colour developing image are quantified, excluded by capture apparatus and ring The S value and V value that border influences take tone H value to establish standard feed liquid comparison database, calculate each perfume monomer weight according to technological standards and permit Difference takes its pH test paper color development image information according to franchise preparation liquid, calculates H value, feed liquid H value value range can be obtained;
Step 3 establishes standard feed liquid H Value Data library;
Step 4, production sample and calculate H value;
Step 5 is sentenced different according to CD method;
Step 6 is rechecked using SPC method.
As a further improvement of the above technical scheme, the present invention the following steps are included:
Step 1 acquires standard feed liquid test paper color development area image
Using factory formula as foundation, perfume monomer is required to carry out weighing preparation according to formula rate, weighing essence when preparation Degree is 2 significant digits, and prepared feed liquid is sufficiently stirred and is warming up to 60 DEG C, picks feed liquid with glass bar, is placed in pH examination On paper, color development area image is acquired with capture apparatus in 3s;
Step 2 carries out image quantization using HSV
The tone H, saturation degree S and the lightness V that acquire colour developing image are quantified, excluded by capture apparatus and ring The S value and V value that border influences take tone H value to establish standard feed liquid comparison database, calculate each perfume monomer weight according to technological standards and permit Difference takes its pH test paper color development image information according to franchise preparation liquid, calculates H value, feed liquid H value value range can be obtained;
Step 3 establishes standard feed liquid H Value Data library
The standard feed liquid H value that step 2 is calculated is established into comparison database according to the production trade mark, is carried out when to be used It compares.
Step 4, production sample and calculate H value
Sample and colour developing are carried out according to step 1 method to prepared feed liquid by site technique personnel in production process Area image acquisition, and feed liquid H value is calculated according to step 2 method, gained sample image information is deposited with production batch number name Shelves.
Step 5 is sentenced different according to CD method;
According to CD method, i.e. Comparison Method, sample H value is compared with corresponding trade mark database value, if in database value In range, then determine that feed liquid prepares qualification, meets technique and require can be used;If exceeding database value range, determine to expect Liquid prepares unqualified, waiting reinspection.
Step 6 is rechecked using SPC method
Configured feed liquid to be rechecked is stirred, sampling in every 2 minutes is primary, takes altogether 30 times, and it is anti-to do colour developing to sample H value should and be calculated, is determined using SPC method, can be used normally if reinspection is determined as normally;If reinspection is determined as different Often, then feed liquid is done and scraps processing.
Bring beneficial effect of the present invention has:
The more original industry universal method of this method be more suitable production scene use, substantially increase quality control capability, It has the advantage that
1, quick obtaining is as a result, greatly shorten the pattern detection time;2, inspection easy to carry, being suitble under the complex environment of scene It surveys;3., the influence of not examined environment;4, personnel specialty competency profiling is low;5, micro using sample, it is (former to save feed liquid cost Sampling amount >=100mL).
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment the invention will be further described,
Attached drawing 1 is method for quickly detecting flow chart of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.Specific embodiments of the present invention described in attached drawing are only Illustrate use of the present invention, the attached drawing in the present invention should not be construed as any limitation of the invention.Protection scope of the present invention is by weighing Sharp claim is defined.
For the sake of the concise and prominent present invention, the details particularly relevant with the present invention is illustrated only in some drawings.It answers Work as understanding, the presence of other details related to the present invention is not precluded in this diagramatic way.Therefore, attached drawing of the invention is not Intention limits the scope of the invention.
Embodiment 1
Referring to Fig.1, a kind of tobacco aromaticss prepare accuracy method for quickly detecting, comprising the following steps:
Step 1 acquires standard feed liquid test paper color development area image
Using factory formula as foundation, perfume monomer is required to carry out weighing preparation according to formula rate, weighing essence when preparation Degree is 2 significant digits, and (60min) is sufficiently stirred in prepared feed liquid and is warming up to 60 DEG C, picks feed liquid with glass bar, It is placed on pH test paper, color development area image is acquired with capture apparatus in 3s;
Step 2 carries out image quantization using HSV
The tone H, saturation degree S and the lightness V that acquire colour developing image are quantified, excluded by capture apparatus and ring The S value and V value that border influences take tone H value to establish standard feed liquid comparison database, calculate each perfume monomer weight according to technological standards and permit Difference takes its pH test paper color development image information according to franchise preparation liquid, calculates H value, feed liquid H value value range can be obtained;
Step 3 establishes standard feed liquid H Value Data library
The standard feed liquid H value that step 2 is calculated is established into comparison database according to the production trade mark, is carried out when to be used It compares.
Step 4, production sample and calculate H value
Sample and colour developing are carried out according to step 1 method to prepared feed liquid by site technique personnel in production process Area image acquisition, and feed liquid H value is calculated according to step 2 method, gained sample image information is deposited with production batch number name Shelves.
Step 5 is sentenced different according to CD method;
According to CD method, i.e. Comparison Method, sample H value is compared with corresponding trade mark database value, if in database value In range, then determine that feed liquid prepares qualification, meets technique and require can be used;If exceeding database value range, determine to expect Liquid prepares unqualified, waiting reinspection.
Step 6 is rechecked using SPC method
Configured feed liquid to be rechecked is stirred, sampling in every 2 minutes is primary, takes altogether 30 times, and it is anti-to do colour developing to sample H value should and be calculated, is determined using SPC method, can be used normally if reinspection is determined as normally;If reinspection is determined as different Often, then feed liquid is done and scraps processing.
Embodiment 2
According to 1 step 3 of embodiment, the foundation in standard feed liquid H Value Data library is carried out.
It the results are shown in Table 1:
The trade mark 1 The trade mark 2 The trade mark 3 The trade mark 4 The trade mark 5 The trade mark 6 The trade mark 7 The trade mark 8 The trade mark 9
Standard intermediate value 30.23 28.38 34.22 31.64 38.37 24.68 35.29 30.95 29.06
Franchise ±0.01 ±0.01 ±0.04 ±0.01 ±0.02 ±0.05 ±0.01 ±0.01 ±0.01
Embodiment 3
Tobacco aromaticss preparation accuracy is carried out according to embodiment 1 quickly to examine, and counts April 1 day~2019 April in 2019 Quick inspection result on the 9th.
It the results are shown in Table 2:
In the present embodiment:
Test material: pH test paper, Jiangsu Taizhou Losec filter paper factory, extensive test paper;
Instrument: SNOY Exmor RS CMOS, Sony, 1.12 μm of pel spacings.
Specific embodiments of the present invention are described in detail above, but content is only presently preferred embodiments of the present invention, It should not be considered as limiting the scope of the invention.Any changes and modifications in accordance with the scope of the present application, It should still be within the scope of the patent of the present invention.

Claims (6)

1. a kind of tobacco aromaticss prepare accuracy method for quickly detecting, it is characterised in that: the following steps are included:
Step 1 acquires standard feed liquid test paper color development area image;
Step 2 carries out image quantization using HSV
The tone H, saturation degree S and the lightness V that acquire colour developing image are quantified, excluded by capture apparatus and environment shadow Loud S value and V value takes tone H value to establish standard feed liquid comparison database, calculates each perfume monomer weight franchise according to technological standards, Its pH test paper color development image information is taken according to franchise preparation liquid, H value is calculated, feed liquid H value value range can be obtained;
Step 3 establishes standard feed liquid H Value Data library;
Step 4, production sample and calculate H value;
Step 5 is sentenced different according to CD method;
Step 6 is rechecked using SPC method.
2. tobacco aromaticss according to claim 1 prepare accuracy method for quickly detecting, it is characterised in that: the step 1 It specifically includes:
Using factory formula as foundation, perfume monomer is required to carry out weighing preparation according to formula rate, weighing precision is when preparation 2 significant digits, prepared feed liquid is sufficiently stirred and is warming up to 60 DEG C, picks feed liquid with glass bar, is placed in pH test paper On, color development area image is acquired with capture apparatus in 3s.
3. tobacco aromaticss according to claim 2 prepare accuracy method for quickly detecting, it is characterised in that: the step 3 It specifically includes:
The standard feed liquid H value that step 2 is calculated is established into comparison database according to the production trade mark, is compared when to be used.
4. tobacco aromaticss according to claim 3 prepare accuracy method for quickly detecting, it is characterised in that: the step 4 It specifically includes:
Sample and color development area are carried out according to step 1 method to prepared feed liquid by site technique personnel in production process Image Acquisition, and feed liquid H value is calculated according to step 2 method, gained sample image information is named with production batch number and is achieved.
5. tobacco aromaticss according to claim 4 prepare accuracy method for quickly detecting, it is characterised in that: the step 5 It specifically includes:
Sample H value is compared with corresponding trade mark database value according to CD method, if determining to expect in database value range It is qualified that liquid is prepared, and meets technique and requires can be used;If exceeding database value range, determine that feed liquid preparation is unqualified, etc. Wait recheck.
6. tobacco aromaticss according to claim 5 prepare accuracy method for quickly detecting, it is characterised in that: the step 6 It specifically includes:
Configured feed liquid to be rechecked is stirred, sampling in every 2 minutes is primary, takes 30 times altogether, does chromogenic reaction simultaneously to sample H value is calculated, is determined using SPC method, can be used normally if reinspection is determined as normally;If reinspection is determined as exception, Feed liquid, which is done, scraps processing.
CN201910744039.7A 2019-08-13 2019-08-13 Method for rapidly testing preparation accuracy of tobacco flavor Active CN110412026B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910744039.7A CN110412026B (en) 2019-08-13 2019-08-13 Method for rapidly testing preparation accuracy of tobacco flavor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910744039.7A CN110412026B (en) 2019-08-13 2019-08-13 Method for rapidly testing preparation accuracy of tobacco flavor

Publications (2)

Publication Number Publication Date
CN110412026A true CN110412026A (en) 2019-11-05
CN110412026B CN110412026B (en) 2022-03-18

Family

ID=68367355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910744039.7A Active CN110412026B (en) 2019-08-13 2019-08-13 Method for rapidly testing preparation accuracy of tobacco flavor

Country Status (1)

Country Link
CN (1) CN110412026B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113218441A (en) * 2021-03-24 2021-08-06 江苏华海诚科新材料股份有限公司 Automatic sample appearance inspection and quality analysis device and method
CN114441511A (en) * 2020-10-30 2022-05-06 深圳市瑞图生物技术有限公司 Dry chemical detection device and method for reducing data difference between detection devices

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050112085A1 (en) * 2003-10-16 2005-05-26 Kimberly-Clark Worldwide, Inc. Odor controlling article including a visual indicating device for monitoring odor absorption
US20050181354A1 (en) * 2004-02-18 2005-08-18 Estep Preston W.Iii Methods of assaying physiological states
JP2005265534A (en) * 2004-03-17 2005-09-29 Jt Engineering Inc System for inspecting foreign matter
CN102323221A (en) * 2011-05-31 2012-01-18 河南农业大学 Tobacco maturity detection method and device
CN103091282A (en) * 2013-02-06 2013-05-08 吉林烟草工业有限责任公司 Method for detecting quality of tobacco essence perfume
CN104034787A (en) * 2013-03-04 2014-09-10 福建中烟工业有限责任公司 Automatic potentiometric titration method for determining acid value of tobacco essence and flavor before and after blending
CN104634780A (en) * 2014-12-17 2015-05-20 湖北中烟工业有限责任公司 Method for measuring and evaluating blade feeding uniformity
CN106018338A (en) * 2016-08-10 2016-10-12 福建中烟工业有限责任公司 Method and system for evaluating material liquid quality stability
CN106370609A (en) * 2016-08-29 2017-02-01 云南省烟草质量监督检测站 Method for measuring acid value of tobacco essence
CN106442537A (en) * 2016-08-26 2017-02-22 华中农业大学 System and method for automatically sampling and identifying feedstuff on basis of machine vision
CN107328718A (en) * 2017-05-31 2017-11-07 广东中烟工业有限责任公司 A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent
CN109298129A (en) * 2018-11-20 2019-02-01 四川中烟工业有限责任公司 A method of measurement essence spice for cigarette acid value
CN109540894A (en) * 2018-12-17 2019-03-29 云南省烟草公司红河州公司 A kind of lossless rapid detection method of cured tobacco leaf maturity

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050112085A1 (en) * 2003-10-16 2005-05-26 Kimberly-Clark Worldwide, Inc. Odor controlling article including a visual indicating device for monitoring odor absorption
US20050181354A1 (en) * 2004-02-18 2005-08-18 Estep Preston W.Iii Methods of assaying physiological states
JP2005265534A (en) * 2004-03-17 2005-09-29 Jt Engineering Inc System for inspecting foreign matter
CN102323221A (en) * 2011-05-31 2012-01-18 河南农业大学 Tobacco maturity detection method and device
CN103091282A (en) * 2013-02-06 2013-05-08 吉林烟草工业有限责任公司 Method for detecting quality of tobacco essence perfume
CN104034787A (en) * 2013-03-04 2014-09-10 福建中烟工业有限责任公司 Automatic potentiometric titration method for determining acid value of tobacco essence and flavor before and after blending
CN104634780A (en) * 2014-12-17 2015-05-20 湖北中烟工业有限责任公司 Method for measuring and evaluating blade feeding uniformity
CN106018338A (en) * 2016-08-10 2016-10-12 福建中烟工业有限责任公司 Method and system for evaluating material liquid quality stability
CN106442537A (en) * 2016-08-26 2017-02-22 华中农业大学 System and method for automatically sampling and identifying feedstuff on basis of machine vision
CN106370609A (en) * 2016-08-29 2017-02-01 云南省烟草质量监督检测站 Method for measuring acid value of tobacco essence
CN107328718A (en) * 2017-05-31 2017-11-07 广东中烟工业有限责任公司 A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent
CN109298129A (en) * 2018-11-20 2019-02-01 四川中烟工业有限责任公司 A method of measurement essence spice for cigarette acid value
CN109540894A (en) * 2018-12-17 2019-03-29 云南省烟草公司红河州公司 A kind of lossless rapid detection method of cured tobacco leaf maturity

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张磊: ""基于图像处理的烟叶等级标准图像合成算法研究"", 《山地农业生物学报》 *
赵亚: ""基于数字图像处理的pH试纸自动检测技术"", 《机械与电子》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441511A (en) * 2020-10-30 2022-05-06 深圳市瑞图生物技术有限公司 Dry chemical detection device and method for reducing data difference between detection devices
CN114441511B (en) * 2020-10-30 2024-06-04 深圳市瑞图生物技术有限公司 Dry chemical detection device and method for reducing data difference between detection devices
CN113218441A (en) * 2021-03-24 2021-08-06 江苏华海诚科新材料股份有限公司 Automatic sample appearance inspection and quality analysis device and method

Also Published As

Publication number Publication date
CN110412026B (en) 2022-03-18

Similar Documents

Publication Publication Date Title
CN105388147A (en) Detection method for body fluid based on special test paper
CN103175835B (en) Method for determining area quality of tobacco leaves based on intelligent image processing and model estimation
CN105741307A (en) Method for automatically identifying reading of pointer type pressure meter
CN110412026A (en) A kind of tobacco aromaticss preparation accuracy method for quickly detecting
CN107239742A (en) A kind of gauge pointer scale value calculating method
CN115718101A (en) Solution color change detection method based on CIEL color space
CN104198695A (en) Method for analyzing developing result of colloidal gold test strip
CN104111165A (en) Evaluation device for image quality of near-to-eye display optical lens
CN102749140A (en) Tobacco leaf surface color uniformity judging method of flue-cured tobacco
CN101603921B (en) Detection system for refractive index dispersion properties and detection method thereof
CN106204523A (en) A kind of image quality evaluation method and device
CN112362609A (en) Method for identifying oil stain smoke pollution source based on infrared spectrum technology
CN111811654A (en) Online chromatic aberration detection system and detection method
US20200355623A1 (en) Quantitative test method for striae in optical materials
CN212621091U (en) Online chromatic aberration detection system
US20230168261A1 (en) Scanner and Method of Using the Scanner During a Stain Assessment
CN105044086A (en) Pressure-steam sterilization chemical indication card color-change determination device
CN114674372A (en) Pearl multi-grading parameter synchronous measurement device and method based on multi-azimuth observation
CN111537457A (en) Color difference analysis method based on ultraviolet and visible light similarity
KR100341867B1 (en) Automatic Evaluation System of Fabric Wrinkles and Seam Puckers and Their Method
CN107328718A (en) A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent
CN108226082B (en) Calibration method for damping response time of moisture meter
CN111721415B (en) Color measuring instrument and color measuring method for realizing automatic compensation and accurate color measurement based on environmental change
CN205449616U (en) Preparation instrument of sample for cement soundness test
CN110596016A (en) Method for detecting quality of tobacco essence

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant