CN110243510A - A kind of stress mornitoring instrument of novel transparent material - Google Patents
A kind of stress mornitoring instrument of novel transparent material Download PDFInfo
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- CN110243510A CN110243510A CN201910467577.6A CN201910467577A CN110243510A CN 110243510 A CN110243510 A CN 110243510A CN 201910467577 A CN201910467577 A CN 201910467577A CN 110243510 A CN110243510 A CN 110243510A
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- 239000012780 transparent material Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 abstract description 50
- 238000000034 method Methods 0.000 abstract description 42
- 230000008569 process Effects 0.000 abstract description 30
- 230000007547 defect Effects 0.000 abstract description 11
- 238000009826 distribution Methods 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 6
- 230000003595 spectral effect Effects 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000010429 evolutionary process Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000001683 neutron diffraction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of stress mornitoring instrument of novel transparent material, it is characterized in that, it includes light source, two groups of polaroids, rotating device and power supply, the light source and the power supply are electrically connected, one group or two groups of polaroids are mounted on the rotating device in two groups of polaroids, and it can be rotated as the rotating device rotates, product to be detected spectral signature can be presented to judge the stress particular state of product to be detected from above upper polaroid group in the stress mornitoring instrument of novel transparent material of the present invention, the specific distribution situation of material i.e. in product, specific defect in specific flow regime or product in product in material forming process in material forming process, and according to the stress particular state of product, the specific distribution situation of material i.e. in product, specific flow regime or product in product in material forming process Specific defect in middle material forming process is that the perfect of moulding process of composite material provides foundation and parameter.
Description
Technical field
The present invention relates to a kind of stress mornitoring instrument more particularly to a kind of stress mornitoring instruments of novel transparent material.
Background technique
When object is deformed due to external cause, i.e. stress, humidity, change of temperature field etc., generated between each section in object
The internal force of interaction, the internal force on unit area are known as stress.Stress is vector, and the component reversed along section is referred to as just being answered
Power, component tangentially are known as shearing stress.
Because of the presence of stress, after by external influence, when as touched chemical solvent or baking vanish rear end when bat printing
High-temperature baking can lure stress release into and crack in stress-retained position.Cracking be concentrated mainly at cast gate or excessive filling at.
Because of the presence of residual stress, appearance when product has the internal stresses release or high temperature of long period in room temperature
The process that residual stress discharges in short time, while position intensity difference is locally present in product, product will be in stress-retained position
Generate warpage or problem on deformation.
Because of the presence of stress, during after product placement or processing, if environment reaches certain temperature, product
Will stress release and change.
Stress in object a little on all possible directions is known as the stress state of the point.But cross a little can make it is numerous
Plane, if stress state a little could be described with the stress in numerous plane? by following analysis it is found that only needing
Stress in orthogonal three planes of more used any one group can represent stress state a little, and on other sections
Stress can all be indicated with this group of stress and its with the position relation in the section that need to be investigated.
Currently, residual stress detection loseless method is mainly X-ray diffraction method, neutron diffraction method, method of magnetic, surpasses in material
Sound method and Indentation strain method etc..Ray law theory is perfect, but makes its application because having radiohazard and being only capable of measurement surface stress
It is very limited.Method of magnetic is surveyed according to the variation relation in ferromagnetic magnetic saturation process between stress and magnetization curve
It is fixed, it is applicable in a certain range.Indentation strain method uses resistance strain gage as measurement sensing element, at strain center position
It uses Impulsive load manufacture impression to replace drilling, the variation of elastic region strain increment outside indented area is recorded by deformeter, from
And the true elastic strain for corresponding to residual stress size is obtained, find out the size of residual stress.But ray method is directly treated
Attacking material surface damages.And ferromagnet need to be attached to material surface just and can measure laser action surface shallow-layer stress, meeting
Laser optical path is blocked.Indentation strain method needs to be tightly attached to the material back side, when in laser action process material surface strain it is too small,
Cause measurement error big.Meanwhile these methods are difficult the ess-strain evolution of quick response Asia ms magnitude or more.It therefore meets
Not in laser action materials process ess-strain evolutionary process measurement.
Optical interference metering is in the detection of material miniature deformation, the refractometry of optical medium and optical wavefront detection etc.
Aspect extensive application, such as utilize the mirror surface depth of parallelism and roughness in interferometer detection optical manufacturing.They are usually utilized
Light penetrates medium, calculates internal structure and surface structure information that optical path difference obtains the transparent medium.But not using dry
Interferometer detection surface micro-structure variation causes the change in optical path length of reflection light, obtain the variation of surface texture caused by internal stress and
The information that its surface texture itself changes.
Summary of the invention
Based on the deficiencies of the prior art, it is an object of the present invention to a kind of stress mornitorings of novel transparent material
Product to be detected spectral signature can be presented to judge the stress of product to be detected from above upper polaroid group in instrument
Particular state, i.e., in the specific distribution situation of material in product, the specific flow regime in product in material forming process or product
Specific defect in material forming process, and according to the stress particular state of product, i.e., the specific distribution situation of material, production in product
Specific defect in specific flow regime or product in product in material forming process in material forming process is composite material
The perfect offer foundation and parameter of moulding process.
A kind of stress mornitoring instrument of novel transparent material is provided, which is characterized in that it include light source, two groups of polaroids,
Rotating device and power supply, the light source and the power supply are electrically connected, one group or two groups of polaroids in two groups of polaroids
It is mounted on the rotating device, and can be rotated as the rotating device rotates.
The improvement of stress mornitoring instrument as novel transparent material of the present invention, the stress inspection of novel transparent material of the present invention
The two groups of polaroids surveyed in instrument are arranged according to overlying relation, respectively upper polaroid group and down polaroid group.
The improvement of stress mornitoring instrument as novel transparent material of the present invention, the light of novel transparent material of the present invention
Source is located at the lower section of the down polaroid group.
The improvement of stress mornitoring instrument as novel transparent material of the present invention, the stress inspection of novel transparent material of the present invention
Surveying light source described in instrument is white light source.
Compared with prior art, have the advantages that can for the tension gauge device of novel transparent material of the present invention
The specific shape of stress that spectral signature is presented with product to be detected from above upper polaroid group to judge product to be detected
State, i.e., in the specific distribution situation of material in product, the specific flow regime in product in material forming process or product material at
Specific defect during type, and according to the stress particular state of product, i.e., the specific distribution situation of material in product, material in product
Expect that the specific defect in specific flow regime or product in forming process in material forming process is the molding work of composite material
The perfect offer foundation and parameter of skill.
Detailed description of the invention
Fig. 1 is the vertical view of stress mornitoring instrument in the preferred embodiment of the stress mornitoring instrument of novel transparent material of the present invention
Figure.
Fig. 2 is the structure of stress mornitoring instrument in the preferred embodiment of the stress mornitoring instrument of novel transparent material of the present invention
Schematic diagram.
Fig. 3 is the structure of stress mornitoring instrument in the preferred embodiment of the stress mornitoring instrument of novel transparent material of the present invention
Schematic diagram.
Fig. 4 is that stress mornitoring instrument detects in the preferred embodiment of the stress mornitoring instrument of novel transparent material of the present invention
The weak effect picture of product stress.
Fig. 5 is that stress mornitoring instrument detects in the preferred embodiment of the stress mornitoring instrument of novel transparent material of the present invention
The strong effect picture of product stress.
Specific embodiment
The stress mornitoring instrument of novel transparent material of the present invention is suitable for the stress state of the product of detection, i.e. material is distributed
The defects of situation, the flow regime in material forming process and material forming process.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present invention provides a kind of tension gauge of novel transparent material
Device, which is characterized in that it includes 4, two groups of polaroids of light source, rotating device 1 and power supply, and the light source 4 and the power supply are electrical
Connection, one group or two groups of polaroids are mounted on the rotating device 1 in two groups of polaroids, and can be with the rotation
Rotary device 1 is rotated and is rotated.
In other embodiments, two groups of polaroids described in the stress mornitoring instrument of novel transparent material of the present invention are according to upper and lower
Positional relationship arrangement, respectively upper polaroid group 2 and down polaroid group 3.
In the present embodiment, the light source 4 of the stress mornitoring instrument of novel transparent material of the present invention is located at described lower inclined
The lower section of mating plate group 3.
In the present embodiment, the light source 4 of the stress mornitoring instrument of novel transparent material of the present invention is white light source.
Power on, turn on the switch, material to be detected is placed on glass 4 by lamp, that is, bright, rotates rotary glass 1, rotation
Turn glass 1 be transparent glass, examiner from the top of rotary glass 1 downwards from, material peripheral can be observed in stress mornitoring
Stress situation in instrument, according to observed stress situation, judge lens periphery stress whether uniformity or needs
Modified position, two kinds of situations generally occur: 1, stress is weak, and material peripheral is almost without any lines image, material forming process
In good fluidity, material is evenly distributed, material good forming effect, as shown in Figure 4.2, stress is too strong, and material peripheral is at an acute angle
The threadiness of strip, material are unevenly distributed, and the mobility in material forming process is bad, and material molding effect is bad, such as Fig. 5 institute
Show.
In the present embodiment, using the characterization processes of the stress mornitoring instrument of novel transparent material of the present invention, feature exists
In comprising the following steps:
(1) upper polaroid group 2 and down polaroid group 3 are adjusted to 90 degree of intersections.
(2) product 6 to be detected is placed between upper polaroid group 2 and down polaroid group 3.
(3) spectral signature is presented to judge product to be detected in product to be detected from above upper polaroid group 2
Stress state, i.e., material molding in material distribution situation in product, the flow regime in product in material forming process or product
The defects of process.
It in the present embodiment, the use of the characterization processes of the stress mornitoring instrument of novel transparent material of the present invention is by continuous
Rotation upper polaroid group 2 or down polaroid group 3 adjust the relative angle between upper polaroid group 2 and down polaroid group 3, from
Spectral signature variation is presented to judge the stress shape of product to be detected in 2 top dynamic observation of upper polaroid group product to be detected
State, i.e., in material distribution situation in product, the flow regime in product in material forming process or product in material forming process
Defect.
Compared with prior art, have the advantages that can for the tension gauge device of novel transparent material of the present invention
The specific shape of stress that spectral signature is presented with product to be detected from above upper polaroid group to judge product to be detected
State, i.e., in the specific distribution situation of material in product, the specific flow regime in product in material forming process or product material at
Specific defect during type, and according to the stress particular state of product, i.e., the specific distribution situation of material in product, material in product
Expect that the specific defect in specific flow regime or product in forming process in material forming process is the molding work of composite material
The perfect offer foundation and parameter of skill.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (4)
1. a kind of stress mornitoring instrument of novel transparent material, which is characterized in that it includes light source, two groups of polaroids, rotating dress
It sets and power supply, the light source and the power supply are electrically connected, and one group or two groups of polaroids are mounted in two groups of polaroids
On the rotating device, and it can be rotated as the rotating device rotates.
2. the stress mornitoring instrument of novel transparent material according to claim 1, it is characterised in that: two groups of polaroids are pressed
It is arranged according to overlying relation, respectively upper polaroid group and down polaroid group.
3. the stress mornitoring instrument of novel transparent material according to claim 2, it is characterised in that: the light source is located at described
The lower section of down polaroid group.
4. the stress mornitoring instrument of novel transparent material according to claim 3, it is characterised in that: the light source is white light
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467577.6A CN110243510A (en) | 2019-05-30 | 2019-05-30 | A kind of stress mornitoring instrument of novel transparent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467577.6A CN110243510A (en) | 2019-05-30 | 2019-05-30 | A kind of stress mornitoring instrument of novel transparent material |
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| Publication Number | Publication Date |
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| CN110243510A true CN110243510A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910467577.6A Pending CN110243510A (en) | 2019-05-30 | 2019-05-30 | A kind of stress mornitoring instrument of novel transparent material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530771A (en) * | 2020-05-13 | 2020-08-14 | 深圳市全洲自动化设备有限公司 | Analysis method for rapidly grading colors of STN liquid crystal display |
-
2019
- 2019-05-30 CN CN201910467577.6A patent/CN110243510A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530771A (en) * | 2020-05-13 | 2020-08-14 | 深圳市全洲自动化设备有限公司 | Analysis method for rapidly grading colors of STN liquid crystal display |
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