CN105866168A - Identification method and apparatus for lower matrix material of coating - Google Patents
Identification method and apparatus for lower matrix material of coating Download PDFInfo
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- CN105866168A CN105866168A CN201610176997.5A CN201610176997A CN105866168A CN 105866168 A CN105866168 A CN 105866168A CN 201610176997 A CN201610176997 A CN 201610176997A CN 105866168 A CN105866168 A CN 105866168A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 60
- 238000000576 coating method Methods 0.000 title claims abstract description 60
- 239000011159 matrix material Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 55
- 238000001757 thermogravimetry curve Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 11
- 238000012850 discrimination method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 7
- 238000001931 thermography Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention discloses an identification method for a lower matrix material of a coating. The method comprises the following steps: exciting a first target of a coated coating by using light pulse and acquiring an infrared thermogram sequence by using a thermal infrared imager; for any point of the first target, acquiring temperature-time data of the point and then acquiring the logarithmic cooling curve of the point; calculating the slop of the logarithmic cooling curve and then calculating the separation characteristic value of the point; acquiring the separation characteristic value of each point of the first target; acquiring the surface gray scale graph of the first target; acquiring the surface gray scale graph of each target of a plurality of targets; and identifying the matrix material of the plurality of targets according to the surface gray scale graph. The method provided by the invention can detect and identify the lower matrix material of the coating by analyzing the separation degree of the logarithmic cooling curves of different matrixes and the coating.
Description
Technical field
The present invention relates to infrared characteristic fields of measurement, particularly relate to the discriminating side of a kind of coating lower substrate material
Method and device.
Background technology
Coating paint-on technique be widely used in Aero-Space, mechanical engineering, information technology, microelectric technique,
The fields such as optical Information science, the quality of coating coating directly affects its actual application.Coating quality detection has
A lot of means, infrared thermal imaging is one of them.Infrared thermal imaging is an emerging technology, with tradition
Detection method compare, this technical speed is fast, noncontact, pollution-free.But the infra-red radiation due to target
Only relevant with the material behavior in its surface tens micron thickness, thus scribble the matrix material of same coating
Material often shows identical in infrared image, and under simple analysis target thermal equilibrium state, a certain moment is infrared
Characteristic is difficult to effectively detect it and identify.
Therefore, need discrimination method and the device of a kind of coating lower substrate material badly, utilize controlled, effective
Motivator breaks coating material thermal balance, and the heat of inverting inner material is carried out in the warm field changed by research
Physical attribute.
Summary of the invention
The present invention provides a kind of and carries out what coating lower substrate material differentiated based on light pulse excitation infrared thermal imaging
Method and device, by analyzing the separation degree of different matrix and coating logarithm temperature lowering curve, exploitation is corresponding
Data processing algorithm, it is achieved the detection of coating lower substrate material and identification.
One aspect of the present invention provides the discrimination method of a kind of coating lower substrate material, including step: S1. utilizes
The first object surface being coated with application layer is encouraged by light pulse, gathers first object by thermal infrared imager
The infrared information on surface, obtains infrared thermal imagery graphic sequence；S2. for any point on first object surface, root
According to the Temperature-time data of described this point of Infrared Thermogram retrieval, should by Temperature-time data acquisition
The logarithm temperature lowering curve of point；S3. calculate the slope of described logarithm temperature lowering curve, and lower the temperature according to described logarithm
Slope of a curve calculates the separation characteristic values of this point；S4. repeat step S1-S3, obtain first object surface
The separation characteristic values of every bit；According to the separation characteristic values of first object surface every bit, obtain the first mesh
Mark surface gray-scale figure；S5. for the second target, the 3rd target ... each target in N target, repeat
Step S1-S4, it is thus achieved that the surface gray-scale figure of described each target；N number of mesh is differentiated according to surface gray-scale figure
Target matrix material；Wherein, N is the integer more than 1.
Preferably, by the logarithm temperature lowering curve of this point of Temperature-time data acquisition particularly as follows: to temperature-
Time data carries out background subtraction process, normalized, process of taking the logarithm, and obtains logarithm temperature lowering curve.
Preferably, described normalized is: obtain the maximum temperature values in Temperature-time data, according to
Temperature-time data are normalized by maximum temperature values；Described taking the logarithm is processed as Temperature-time
Temperature, time in data take the logarithm respectively.
Preferably, the slope calculating described logarithm temperature lowering curve includes:
S31. the very first time value meeting the first preset rules and the second time value are chosen, by logarithm cooling song
The line acquisition the first temperature value corresponding to very first time value, the second temperature value corresponding to the second time value；
S32. the slope of logarithm temperature lowering curve is calculated according to formula 1；
Wherein, k is the slope of logarithm temperature lowering curve, and a is very first time value, and m is the second time value, b
Being the first temperature value, n is the second temperature value；B=f (a), n=f (m), y=f (x) are logarithm temperature lowering curve.
Preferably, the first preset rules is particularly as follows: very first time value and the difference of the second time value are not less than pre-
If interval.
Preferably, calculate the separation characteristic values of this point according to the slope of described logarithm temperature lowering curve to include:
S33. the M group data the earliest after being collected in light pulse excitation in logarithm temperature lowering curve are intended
Conjunction obtains coating slope；
S34. using the difference of the slope of logarithm temperature lowering curve and coating slope as the separation characteristic values of this point；
Wherein, M is the positive integer less than 15.
Preferably, at the described separation characteristic values according to first object surface every bit, first object is obtained
Before the gray-scale figure of surface, step S4 also includes: pre-set the corresponding relation of separation characteristic values and grey decision-making.
Preferably, differentiate that the matrix material of N number of target is particularly as follows: according to N number of mesh according to surface gray-scale figure
Mark surface gray-scale figure directly distinguishes the matrix material of each target；Or by each for target surface each in N number of target
The separation characteristic values of point compares with the separation characteristic values of standard specimen, determines the matrix material of each target.
Preferably, described standard specimen is for pre-setting, and the separation characteristic values of described standard specimen is according to step
Rapid S1-S4 obtains.
Another aspect of the present invention provides the identification device of a kind of coating lower substrate material, including:
Information acquisition unit, each object table in utilizing light pulse to the N number of target being coated with application layer
Face is encouraged, and is gathered the infrared information of each target surface by thermal infrared imager, obtains each target
Infrared thermal imagery graphic sequence；
Logarithm temperature lowering curve acquiring unit, for every according to each target surface of Infrared Thermogram retrieval
The Temperature-time data of a bit, Temperature-time data are carried out background subtraction process, maximum normalized,
Take the logarithm and after processing, obtain the logarithm temperature lowering curve of described every bit；
Separation characteristic values computing unit, for utilizing two-point method to calculate the logarithm temperature lowering curve of described every bit
Slope, and the slope of logarithm temperature lowering curve is separated as described every bit with the difference of coating slope
Eigenvalue；
Gray-scale figure acquiring unit, is used for the separation characteristic values according to described every bit and the separation pre-set
The corresponding relation of eigenvalue and grey decision-making, obtains the surface gray-scale figure of each target in N number of target；
Matrix material discriminating unit, for differentiating the matrix material of N number of target according to surface gray-scale figure；
Wherein, coating slope is to the M the earliest being collected in logarithm temperature lowering curve after light pulse excitation
Group data are fitted obtaining, and M is the positive integer less than 15, and N is the integer more than 1.
What the present invention provided carries out, based on light pulse excitation infrared thermal imaging, the side that coating lower substrate material differentiates
Method and device, by analyzing the separation degree of different matrix and coating logarithm temperature lowering curve, exploitation is corresponding
Data processing algorithm, it is achieved the detection of coating lower substrate material and identification.
Accompanying drawing explanation
Fig. 1 is the discrimination method schematic diagram of the coating lower substrate material of the present invention；
Fig. 2 is the identification device schematic diagram of the coating lower substrate material of the present invention；
Fig. 3 is different matrix logarithm temperature lowering curve separation schematic diagram.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously referring to the drawings
Going out preferred embodiment, the present invention is described in more detail.However, it is necessary to explanation, in description
The many details listed be only used to make reader one or more aspects of the present invention are had one thorough
Understand, the aspects of the invention can also be realized even without these specific details.
Light pulse excitation is a kind of effective means detecting coating coating quality and thickness, but in prior art
Do not utilize the research that the ermal physics attribute of coating material surface lower substrate is differentiated by this technology.This
Bright it is considered that utilize light pulse controlled, effective excitation to break coating material thermal balance, by analyzing
Different matrix and the separation degree of coating logarithm temperature lowering curve, develop corresponding data processing algorithm, it is possible to
Realize detection and the identification of coating lower substrate material.
Fig. 1 shows the discrimination method of the coating lower substrate material of the present invention, as shown in Figure 1:
In step S1, light pulse is utilized to encourage, the first object surface being coated with application layer by infrared
Thermal imaging system gathers the infrared information on first object surface, obtains infrared thermal imagery graphic sequence.
Infrared thermal imagery graphic sequence is made up of the multiframe Infrared Thermogram arranged according to acquisition time sequencing,
The frame number of Infrared Thermogram is the most, and test result is the most accurate.Infrared Thermogram is collected in light pulse to painting
After the first object surface of application layer is encouraged.
It follows that in step S2, for any point on first object surface, according to infrared thermal imagery graphic sequence
Obtain the Temperature-time data of this point, by the logarithm temperature lowering curve of this point of Temperature-time data acquisition.
Level-time data according to infrared thermal imagery graphic sequence is obtained in that Temperature-time data.
In a preferred embodiment of the invention, had by the logarithm temperature lowering curve of this point of Temperature-time data acquisition
Body is: Temperature-time data carry out background subtraction process, normalized, process of taking the logarithm, and it is right to obtain
Number temperature lowering curve.
Background subtraction processes and is specially Temperature-time data subtracting background data, it is thus achieved that do not comprise background information
Target data.
It is preferred that in a preferred embodiment of the invention, normalized is: obtain Temperature-time data
In maximum temperature values, according to maximum temperature values, Temperature-time data are normalized；Take the logarithm
It is processed as the temperature in Temperature-time data, time are taken the logarithm respectively.
Then, in step S3, the slope of logarithm temperature lowering curve is calculated, and oblique according to logarithm temperature lowering curve
Rate calculates the separation characteristic values of this point.
As a preferred version, the slope calculating logarithm temperature lowering curve can include performing process as follows:
First, in step S31, choose the very first time value meeting the first preset rules and the second time value,
The first temperature value corresponding to very first time value is obtained, corresponding to the second time value by logarithm temperature lowering curve
The second temperature value；
Then, in step S32, the slope of logarithm temperature lowering curve is calculated according to formula 1；
Wherein, k is the slope of logarithm temperature lowering curve, and a is very first time value, and m is the second time value, b
Being the first temperature value, n is the second temperature value；B=f (a), n=f (m), y=f (x) are logarithm temperature lowering curve.
Logarithm temperature lowering curve can reflect the heat conductivility of target substrate material.
In a preferred embodiment of the invention, the first preset rules particularly as follows: the very first time value with the second time
The difference of value is not less than predetermined interval.If very first time value is the least with the difference of the second time value, thus calculate
Slope just cannot reflect the complete information of logarithm temperature lowering curve, therefore the two must keep certain intervals.
It is preferred that in a preferred embodiment of the invention, calculate this point according to the slope of logarithm temperature lowering curve
Separation characteristic values execution specific as follows:
First, in step S33, to the M the earliest being collected in logarithm temperature lowering curve after light pulse excitation
Group data are fitted obtaining coating slope；
Then, in step S34, using the difference of the slope of logarithm temperature lowering curve and coating slope as this point
Separation characteristic values；
Wherein, M is the positive integer less than 15
Data in logarithm temperature lowering curve i.e. Temperature-time data carry out background subtraction process, normalized,
Take the logarithm and process the data generated；Coating slope is the slope of coating logarithm temperature lowering curve.
M group data the earliest after being collected in light pulse excitation may be considered light pulse without coating and
Basal body interface, the data produced when propagating the most in the coating, it is possible to the heat conductivility of sign coating, therefore with
Its matching coating slope.
Above-mentioned separation characteristic values can reflect the separation degree of matrix and coating heat conductivility, different separation
Eigenvalue can represent the matrix of different materials, therefore using it as the Main Means of matrix material discriminating.Point
If representing that the matrix material capacity of heat transmission is more than coating from eigenvalue negative value, if on the occasion of representing that matrix is relative
Coating is thermal resistance medium.
It follows that in step S4, repeat step S1-S3, obtain the separation of first object surface every bit
Eigenvalue；According to the separation characteristic values of first object surface every bit, obtain first object surface gray-scale figure.
As a preferred version, at the separation characteristic values according to first object surface every bit, obtain
Before one target surface gray-scale figure, step S4 can also include performing process as follows: pre-sets separation spy
Value indicative and the corresponding relation of grey decision-making.
The separation characteristic values of target surface is converted to gray-scale figure, it is possible to show different matrix material intuitively
Difference, and then realize the discriminating of matrix material.
Then, in step S5, for the second target, the 3rd target ... each target in N target,
Repeat step S1-S4, it is thus achieved that the surface gray-scale figure of each target；N number of mesh is differentiated according to surface gray-scale figure
Target matrix material；
Wherein, N is the integer more than 1.
In a preferred embodiment of the invention, differentiate that the matrix material of N number of target is concrete according to surface gray-scale figure
For: the matrix material of each target is directly distinguished according to N number of target surface gray-scale figure；Or by N number of target
Each separation characteristic values of target surface each point compares with the separation characteristic values of standard specimen, determines each target
Matrix material.
As a preferred version, standard specimen for pre-setting, the separation characteristic values of standard specimen according to
Step S1-S4 obtains.
The present invention is achieved in detection and the identification of coating lower substrate material.
Fig. 2 shows the identification device of the coating lower substrate material of the present invention, as in figure 2 it is shown, described dress
Put and include: information acquisition unit 11, logarithm temperature lowering curve acquiring unit 12, separation characteristic values computing unit
13, gray-scale figure acquiring unit 14, matrix material discriminating unit 15.
Information acquisition unit 11, each target in utilizing light pulse to the N number of target being coated with application layer
Surface is encouraged, and is gathered the infrared information of each target surface by thermal infrared imager, obtains each mesh
Target infrared thermal imagery graphic sequence；
Logarithm temperature lowering curve acquiring unit 12, for according to each target surface of Infrared Thermogram retrieval
Temperature-time data are carried out at background subtraction process, maximum normalization by the Temperature-time data of every bit
The logarithm temperature lowering curve of every bit is obtained after reason, process of taking the logarithm；
Separation characteristic values computing unit 13, for utilizing the logarithm temperature lowering curve of two-point method calculating every bit
Slope, and using the difference of the slope of logarithm temperature lowering curve and coating slope as the separation characteristic values of every bit；
Gray-scale figure acquiring unit 14, is used for the separation characteristic values according to every bit and the separation spy pre-set
The corresponding relation of value indicative and grey decision-making, obtains the surface gray-scale figure of each target in N number of target；
Matrix material discriminating unit 15, for differentiating the matrix material of N number of target according to surface gray-scale figure；
Wherein, coating slope is to the M group data being collected in logarithm temperature lowering curve after light pulse excitation
Being fitted obtaining, M is the positive integer less than 15, and N is the integer more than 1.
Fig. 3 is different matrix logarithm temperature lowering curve separation schematic diagram, and the matrix material 1 in figure is black plastics,
2 is fiberglass, and 3 is carbon fiber, and 4 is aluminum, and 5 is steel.It can be seen that different matrix material is right
Number temperature lowering curve creates significantly separation, is conducive to thus carrying out the discriminating of different matrix material.Curve 3,
The theoretical log temperature lowering curve that empty oblique line is coating between 4, slope is-0.5.
The discrimination method of the coating lower substrate material that the present invention provides and device can be by analyzing different matrix
Separation degree with coating logarithm temperature lowering curve, it is achieved the detection of coating lower substrate material and identification.Simultaneously
It is easy to design, is suitable in engineer applied promoting.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method
The program that can be by completes to instruct relevant hardware, and this program can be stored in a computer-readable
Take in storage medium, such as: ROM/RAM, magnetic disc, CD etc..
The above is only the preferred embodiment of the present invention, it is noted that general for the art
For logical technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvement and profit
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the discrimination method of a coating lower substrate material, it is characterised in that include step:
S1. utilize light pulse that the first object surface being coated with application layer is encouraged, adopted by thermal infrared imager
The infrared information on collection first object surface, obtains infrared thermal imagery graphic sequence；
S2. for any point on first object surface, according to the temperature of described this point of Infrared Thermogram retrieval
Degree-time data, by the logarithm temperature lowering curve of this point of Temperature-time data acquisition；
S3. calculate the slope of described logarithm temperature lowering curve, and calculate according to the slope of described logarithm temperature lowering curve
The separation characteristic values of this point；
S4. repeat step S1-S3, obtain the separation characteristic values of first object surface every bit；According to first
The separation characteristic values of target surface every bit, obtains first object surface gray-scale figure；
S5. for the second target, the 3rd target ... each target in N target, step S1-S4 is repeated,
Obtain the surface gray-scale figure of described each target；The matrix material of N number of target is differentiated according to surface gray-scale figure；
Wherein, N is the integer more than 1.
2. the method for claim 1, it is characterised in that by this point of Temperature-time data acquisition
Logarithm temperature lowering curve particularly as follows: Temperature-time data are carried out background subtraction process, normalized, take
Logarithm process, obtains logarithm temperature lowering curve.
3. method as claimed in claim 2, it is characterised in that described normalized is: obtain temperature
Temperature-time data are normalized place according to maximum temperature values by the maximum temperature values in degree-time data
Reason；Described taking the logarithm is processed as taking the logarithm the temperature in Temperature-time data, time respectively.
4. method as claimed in claim 3, it is characterised in that calculate the oblique of described logarithm temperature lowering curve
Rate includes:
S31. the very first time value meeting the first preset rules and the second time value are chosen, by logarithm cooling song
The line acquisition the first temperature value corresponding to very first time value, the second temperature value corresponding to the second time value；
S32. the slope of logarithm temperature lowering curve is calculated according to formula 1；
Wherein, k is the slope of logarithm temperature lowering curve, and a is very first time value, and m is the second time value, b
Being the first temperature value, n is the second temperature value；B=f (a), n=f (m), y=f (x) are logarithm temperature lowering curve.
5. method as claimed in claim 4, it is characterised in that the first preset rules is particularly as follows: first
Time value is not less than predetermined interval with the difference of the second time value.
6. method as claimed in claim 5, it is characterised in that oblique according to described logarithm temperature lowering curve
Rate calculates the separation characteristic values of this point and includes:
S33. the M group data the earliest after being collected in light pulse excitation in logarithm temperature lowering curve are intended
Conjunction obtains coating slope；
S34. using the difference of the slope of logarithm temperature lowering curve and coating slope as the separation characteristic values of this point；
Wherein, M is the positive integer less than 15.
7. method as claimed in claim 6, it is characterised in that described every according to first object surface
The separation characteristic values of a bit, before obtaining first object surface gray-scale figure, step S4 also includes:
Pre-set the corresponding relation of separation characteristic values and grey decision-making.
8. method as claimed in claim 7, it is characterised in that differentiate N number of mesh according to surface gray-scale figure
Target matrix material particularly as follows:
The matrix material of each target is directly distinguished according to N number of target surface gray-scale figure；Or
Separation characteristic values by the separation characteristic values of target surface each point each in N number of target Yu standard specimen
Relatively, the matrix material of each target is determined.
9. method as claimed in claim 8, it is characterised in that described standard specimen for pre-setting,
The separation characteristic values of described standard specimen obtains according to step S1-S4.
10. the identification device of a coating lower substrate material, it is characterised in that including:
Information acquisition unit, each object table in utilizing light pulse to the N number of target being coated with application layer
Face is encouraged, and is gathered the infrared information of each target surface by thermal infrared imager, obtains each target
Infrared thermal imagery graphic sequence；
Logarithm temperature lowering curve acquiring unit, for every according to each target surface of Infrared Thermogram retrieval
The Temperature-time data of a bit, Temperature-time data are carried out background subtraction process, maximum normalized,
Take the logarithm and after processing, obtain the logarithm temperature lowering curve of described every bit；
Separation characteristic values computing unit, for utilizing two-point method to calculate the logarithm temperature lowering curve of described every bit
Slope, and the slope of logarithm temperature lowering curve is separated as described every bit with the difference of coating slope
Eigenvalue；
Gray-scale figure acquiring unit, is used for the separation characteristic values according to described every bit and the separation pre-set
The corresponding relation of eigenvalue and grey decision-making, obtains the surface gray-scale figure of each target in N number of target；
Matrix material discriminating unit, for differentiating the matrix material of N number of target according to surface gray-scale figure；
Wherein, coating slope is to the M the earliest being collected in logarithm temperature lowering curve after light pulse excitation
Group data are fitted obtaining, and M is the positive integer less than 15, and N is the integer more than 1.
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| CN110430957A (en) * | 2017-03-10 | 2019-11-08 | 斯巴赫木材加工机械工厂股份有限公司 | For controlling the method for electric tool and the electric tool for implementing this method being arranged |
| WO2021158174A1 (en) * | 2020-02-07 | 2021-08-12 | Agency For Science, Technology And Research | Active infrared thermography system and computer-implemented method for generating thermal image |
| CN114719805A (en) * | 2022-02-18 | 2022-07-08 | 中国航发北京航空材料研究院 | Method and device for measuring thickness of thermal barrier coating of blade |
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| 陶胜杰: "基于热图序列时间特征的涂层厚度测量研究", 《仪器仪表学报》 * |
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| CN110430957A (en) * | 2017-03-10 | 2019-11-08 | 斯巴赫木材加工机械工厂股份有限公司 | For controlling the method for electric tool and the electric tool for implementing this method being arranged |
| CN110430957B (en) * | 2017-03-10 | 2021-08-17 | 斯巴赫木材加工机械工厂股份有限公司 | Method for controlling an electric tool and electric tool provided for carrying out the method |
| WO2021158174A1 (en) * | 2020-02-07 | 2021-08-12 | Agency For Science, Technology And Research | Active infrared thermography system and computer-implemented method for generating thermal image |
| CN114719805A (en) * | 2022-02-18 | 2022-07-08 | 中国航发北京航空材料研究院 | Method and device for measuring thickness of thermal barrier coating of blade |
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