CN109030353A - A kind of detection method and evaluation method of curtain single plane fluoroscopy performance - Google Patents
A kind of detection method and evaluation method of curtain single plane fluoroscopy performance Download PDFInfo
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- CN109030353A CN109030353A CN201810719288.6A CN201810719288A CN109030353A CN 109030353 A CN109030353 A CN 109030353A CN 201810719288 A CN201810719288 A CN 201810719288A CN 109030353 A CN109030353 A CN 109030353A
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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Abstract
The invention discloses the detection methods and evaluation method of a kind of curtain single plane fluoroscopy performance, for testing the single plane fluoroscopy performance of curtain.Analog light source is set to the front of camera bellows, the first visual chart and internal light source are set in camera bellows, the second visual chart is set at analog light source;By curtain sample damping before detection, the curtain sample of suitable size is taken to be covered in camera bellows front opening from curtain sample;The illumination of fixing internal light source and analog light source;It stands respectively and observes the first visual chart and the second visual chart through curtain sample in analog light source and camera bellows rear portion opening, result carries out follow-up test step according to the observation.By the illumination change of simulated solar irradiation from morning to night, the quality of curtain single plane fluoroscopy performance is evaluated in conjunction with the observed phenomenon of visual chart in test using the illumination and light transmittance of illumination photometer test sample surface.This method is easy to operate, and reproducibility is high, at low cost, has a good application prospect.
Description
Technical field
The present invention relates to textile perspective technical field of performance test more particularly to a kind of inspections of curtain single plane fluoroscopy performance
Survey method and evaluation method.
Background technique
Single plane fluoroscopy curtain price currently on the market is higher by several times of common curtain, but searches for detection mark both at home and abroad
Standard does not find the detection method and evaluation method of the product but, existing state's mark system and international standard is scanned, to curtain fabric
Examination be only limitted to the problem of being likely to occur in curtain decorative, the functionality of curtain is related to very few.The country is currently without list
To the product standard of perspective curtain, there is FZ/T 01009-2008 " textile fabric translucency to the examination of the optical property of curtain
The test of energy ", which is not mentioned to fabric transparent effect and anti-perspective performance, and test parameter sets a model in standard
It encloses, Uniform provisions is not done to test apparatus parameter, influence the consistent of each laboratory monitoring test condition and test result.FZ/T
62011.1-2008 " fabrics class product part 1: valance ", GB/T 19817-2005 " textile embellishment fabric ", GB
20286-2006 " public place fire-retardant product and component combustibility requires and mark " relates only to the flame retardant property of curtain.It is right
The ignorance of the transparent effect of curtain and anti-perspective performance makes people miss beautiful scenery outside window while also create to media exposure individual privacy
Advantageous chance is made;European & American Market is examined currently without the detection method and technology for finding single plane fluoroscopy window covering products in the world
Core index.Detection in terms of the optical property of curtain has Unite States Standard AATCC183-2004, and " fabric is total to erythema weighting ultraviolet
The transmissivity or rejection rate of radiation ", which evaluates fabric by detecting transmitance and the UV protection factor UPF of spectrum
The performance of antiultraviolet, the index can not embody the anti-perspective performance of curtain.The comparatively faster relatively early development of starting is Japan, window
The optical property detection of curtain has JIS L 1055-2009 " test method of curtain shading performance " to characterize curtain with light transmittance
Shading performance, this standard also can not embody the anti-perspective performance of curtain.Single plane fluoroscopy curtain is that the reality of pinhole imaging system principle is answered
With.Translucency is the most basic performance of curtain, and with being constantly progressive for material life, the protection of privacy is increasingly by social identity
And pursuit.While acquisition and contact nature light, privacy can be preferably protected, and to the new demand that curtain function proposes.
The function present standard of this respect is not all mentioned to, and is not suitable for the standard of the product.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide the detection method and evaluation method of a kind of curtain single plane fluoroscopy performance.
The purpose of the present invention can be realized by following technical proposals: a kind of detection side of curtain single plane fluoroscopy performance
Method, comprising: analog light source is set to the front of camera bellows, the front and rear of camera bellows all has opening, by the first visual chart and
Internal light source is set in camera bellows, and the second visual chart is set at analog light source;By curtain sample damping before detection, from curtain
The curtain sample of suitable size is taken to be covered in camera bellows front opening on sample;The illumination of fixing internal light source and analog light source;It surveys
Examination personnel stand respectively observes the first visual chart and the second visual chart through curtain sample in analog light source and camera bellows rear portion opening,
Result carries out corresponding follow-up test step according to the observation.
The analog light source, the second row E of the first visual chart, the second visual chart second row E in same horizontal line height.
Fixing internal light illumination makes the first visual chart surface second row illumination 500lx in camera bellows;Fixed-analog light source
Illumination makes incident illuminance 700lx of the horizontal line between the analog light source of curtain specimen surface and the first visual chart.
The first visual chart in camera bellows is observed at tester station at analog light source, cannot clearly distinguish through curtain sample
" not seeing " is defined as when recognizing the first visual chart second row E;It is seen in camera bellows rear portion opening through curtain sample at tester station
The second visual chart of Cha Moniguangyuanchu is defined as " that sees is clear " when at least can clearly recognize the E of the second visual chart first row, this
State is defined as the single plane fluoroscopy point of curtain.
Steps are as follows for observation result and follow-up test: 1) seeing in analog light source and camera bellows rear portion opening through curtain sample
It examines the first visual chart and the second visual chart is not had an X-rayed: determining that the curtain sample does not have single plane fluoroscopy performance;2) it is simulating
Light source and camera bellows rear portion opening are had an X-rayed through curtain sample the first visual chart of observation and the second visual chart: i.e. curtain sample table
Not up to single plane fluoroscopy effect when the 700lx illumination of face records incident illuminance > 700lx, closes internal light source, close to curtain
Horizontal line penetrates the transmission of curtain sample with illumination photometer measurement between the analog light source of specimen surface and the first visual chart
Illuminance;3) only camera bellows rear portion opening through curtain sample observes the second visual chart perspective: internal light source is closed, close to window
Horizontal line is between the analog light source of curtain specimen surface and the first visual chart, with illumination photometer measurement through the saturating of curtain sample
Illuminance is penetrated, internal light source is opened, analog light source illumination is lowered gradually until reaching the critical single plane fluoroscopy point of curtain sample, uses
The incident illuminance of illumination photometer measurement window shade surface.
According to the light transmittance of the transmission illuminance of measurement and incident light luminance calculation curtain sample;According to the saturating of curtain sample
The quality of light rate and curtain specimen surface incidence illuminance evaluation curtain single plane fluoroscopy performance.
Wherein, the side outside the faced chamber of the curtain sample is as test surfaces.The in the analog light source and camera bellows
The distance between one visual chart is 2 meters.
Evaluation method:
(1) when the transparent effect of curtain is inside and outside impermeable apparent time: single plane fluoroscopy effective evaluation is no single plane fluoroscopy;
(2) when the transparent effect of curtain is inside and outside perspective: if the light transmittance < 14% of curtain sample and curtain sample table
The incident illuminance > 700lx in face, then single plane fluoroscopy effective evaluation is no single plane fluoroscopy;If the light transmittance of curtain sample >=
14% and curtain specimen surface incident illuminance > 700lx, then single plane fluoroscopy effective evaluation be single plane fluoroscopy it is poor;
(3) when the transparent effect of curtain is single plane fluoroscopy: if light transmittance >=14% of curtain sample and curtain sample table
Incident illuminance≤the 700lx in face, then single plane fluoroscopy effective evaluation is that single plane fluoroscopy is good;If the light transmittance of curtain sample >=
14% and curtain specimen surface incident illuminance≤500lx, then single plane fluoroscopy effective evaluation be single plane fluoroscopy it is excellent.
Compared with the prior art, the advantages of the present invention are as follows: analog light source reduces sunlight from morning to the change of the light intensity in evening
Change, camera bellows simulates the living room that curtain actual installation uses, by simulating the practical service environment of single plane fluoroscopy curtain, to survey
Try the single plane fluoroscopy of curtain;Use visual chart that can intuitively judge whether curtain has single plane fluoroscopy function as object of reference
Can, by test window shade surface incidence illuminance and the light transmittance of curtain, the unidirectional of curtain is evaluated in conjunction with observation state
Depending on performance.This method is easy to operate, and reproducibility is high, at low cost, has a good application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the arrangement schematic diagram of analog light source and the second visual chart in one embodiment of the invention.
Component mark is as follows in figure:
1 analog light source
2 camera bellows
3 first visual charts
4 second visual charts
5 illumination photometers
6 internal light sources
7 curtain samples.
Specific embodiment
Below in conjunction with the attached drawing specific embodiment that the present invention will be described in detail, those skilled in the art is made to become apparent from geography
How solution practices the present invention.Although describing the present invention in conjunction with its preferred embodiment, these embodiments are
It illustrates, is not intended to limit the scope of the invention.
A kind of detection method and evaluation method of curtain single plane fluoroscopy performance.
Used detection equipment: analog light source 1, camera bellows 2, internal light source 6, visual chart and illumination photometer 5.Wherein, referring to
Fig. 1 and 2,1 adjustable light sources illumination of analog light source, light emission direction are arranged horizontally forward;Camera bellows 2 is located at the water of analog light source 1
Flat front, the inner wall with complete blacking, the front and rear of camera bellows 2 all have opening, and the opening of 2 front of camera bellows is for solid
Determine curtain sample 7, the opening at 2 rear portion of camera bellows is observed for testing crew;6 adjustable light sources illumination of internal light source, is fixed on
2 inner wall of camera bellows is used for simulating living room environment;Transparent effect of the visual chart for testing crew observation curtain sample 7, in camera bellows 2
The second visual chart 4 is arranged in the first visual chart 3 of interior setting at analog light source 1;Illumination photometer 5 is for measuring 7 surface of curtain sample
Illumination.The single plane fluoroscopy performance of curtain is detected and evaluated by these detection equipment.
Raw material to be detected: curtain.
The humidity adjustment that curtain sample is carried out to 4 hours or more in normal conditions, is rounded a curtain or size is at least
3 pieces of the curtain sample of 60 × 60cm, size should ensure that being capable of abundant, no-station pole canopy covering 2 front opening of camera bellows.7 table of curtain sample
Face is smooth, and no obvious fold, broken hole, contamination etc. influence the fault of test effect.
Whole experiment process carries out in darkroom.The eyesight of tester should at least have station and not have at analog light source 1
The third row E of the first visual chart 3 in camera bellows 2 can be clearly recognized when curtain sample 7 is installed.
1 position of analog light source is adjusted, making the distance between first visual chart 3 in analog light source 1 and camera bellows 2 is 2 meters, and
The second row E of first visual chart 3 is in same horizontal line height in analog light source 1 and camera bellows 2.It is placed at analog light source 1 identical
Second visual chart 4 of height.
The first visual chart 3 in camera bellows 2 is observed at analog light source 1 when tester station, it cannot to penetrate curtain sample 7
It is defined as " not seeing " when clear identification 3 second row E of the first visual chart, tester station penetrates window in 2 rear portion opening of camera bellows
Curtain sample 7 observes the second visual chart 4 at the analog light source 1 outside camera bellows 2, at least can clearly recognize 4 first row of the second visual chart
E when be defined as " that sees is clear ", this state is defined as the single plane fluoroscopy point of curtain.
Above-mentioned equipment, raw material, environmental condition, tester's self-condition detect after having, and process is as follows:
(1) curtain sample 7 to be measured is mounted at 2 front opening of camera bellows, curtain corrugationless, no-station pole canopy, without breakage are natural
It hangs, the side outside the faced chamber of curtain sample 7 is as test surfaces;
(2) analog light source 1 outside the internal light source 6 and camera bellows 2 in fixed camera bellows 2, makes 3 table of the first visual chart in camera bellows 2
Face second row illumination is 500lx, is made between the analog light source 1 on 7 surface of curtain sample and the first visual chart 3 at horizontal line process
Incident illuminance is 700lx.
(3) tester is stood respectively in analog light source 1 (from outside to inside) and 2 rear portion of camera bellows opening (from inside to outside) observation,
Result carries out corresponding follow-up test step according to the observation:
A) inside and outside not have an X-rayed (inside and outside equal " not seeing "): to determine that the curtain sample does not have single plane fluoroscopy performance;
B) single plane fluoroscopy also inside and outside perspective (inside and outside equal " that sees is clear "): is i.e. not up to when 7 surface illuminance 700lx of curtain sample
Effect, need to continue to increase incident illuminance can be only achieved single plane fluoroscopy point, record DOut enters> 700lx closes internal light source 6,
Close to horizontal line between the analog light source 1 and the first visual chart 3 on 7 surface of curtain sample at, window is penetrated with the measurement of illumination photometer 5
The transmission illuminance D of curtain sample 7Out is saturating, DOut is saturatingBy 8170 revision of the convention of GB/T to integer, test result is flat with 3 pieces of curtain samples 7
Mean value indicates;
C) single plane fluoroscopy (" that sees is clear " from inside to outside, " do not see " from outside to inside): closing internal light source 6, close to window
Horizontal line penetrates curtain sample with the measurement of illumination photometer 5 between the analog light source 1 on 7 surface of curtain sample and the first visual chart 3
7 transmission illuminance DOut is saturating, internal light source 6 is opened, lowers 1 illumination of analog light source gradually until reaching the critical of curtain sample 7
Single plane fluoroscopy point measures the incident illuminance D of window shade surface with illumination photometer 5Out enters。DOut enters、DOut is saturatingBy 8170 revision of the convention of GB/T to whole
Number, test result are indicated with the average value of 3 pieces of curtain samples 7;
(4) according to the transmission illuminance D of measurementOut is saturatingWith incident illuminance DOut entersCalculate the light transmittance of curtain sample 7;It will obtain
The test result obtained calculates the light transmittance of curtain according to formula (1), as a result by 8170 revision of the convention of GB/T to 1 decimal.
Light transmittance (%)=DOut is saturating/DOut enters× 100% ... ... ... ... ... formula (1)
In formula:
DOut is saturating: the transmission illuminance of analog light source 1, unit lx are analog light sources 1 in the mould close to 7 surface of curtain sample
Transmission illuminance of the horizontal line between quasi- light source 1 and the first visual chart 3, analog light source 1 are unique light source.
DOut enters: the incident illuminance of analog light source 1, unit lx are analog light sources 1 in the mould close to 7 surface of curtain sample
Incident illuminance of the horizontal line between quasi- light source 1 and the first visual chart 3.Analog light source 1 is unique light source.
(5) curtain single plane fluoroscopy performance is evaluated according to the light transmittance of curtain sample 7 and 7 surface incidence illuminance of curtain sample
Quality.
The expression of curtain single plane fluoroscopy results of property is as shown in table 1:
1 curtain single plane fluoroscopy performance of table
Illustrated below with the detection test of the concrete application detection method.
Detection test 1
A kind of woven curtain is chosen as curtain sample to be tested.
Curtain sample is carried out to humidity adjustment in 4 hours or more, the curtain sample 1 of 60 × 60cm of clip in normal conditions
Block, by curtain sample sufficiently, be covered on camera bellows front opening tension-free;Internal light source in fixed-analog light source and camera bellows,
Make the first visual chart surface second row illumination 500lx in camera bellows, makes the analog light source and the first visual chart of curtain specimen surface
Between horizontal line by place incident illuminance be 700lx.
Tester stands to be open in analog light source (from outside to inside) and camera bellows rear portion respectively and observe (from inside to outside), sends out
Existing: the first visual chart inside camera bellows from penetrating curtain sample at analog light source can see second row E clearly;From camera bellows rear portion
Opening can also see second row E clearly through the second visual chart at the outer analog light source of curtain sample observation camera bellows.Therefore judge
Experimental phenomena is " inside and outside perspective ".
At this point, record window shade surface incidence illuminance DOut enters> 700lx.It is then shut off camera bellows internal light source, close to window
Horizontal line is between the analog light source of curtain specimen surface and the first visual chart, with illumination photometer measurement through the saturating of curtain sample
Penetrate illuminance DOut is saturating, measure the transmission illuminance D through curtain sampleOut is saturatingFor 175lx.
Open camera bellows in internal light source, continue increase analog light source illumination until curtain sample reach single plane fluoroscopy point,
Illumination photometer measures the surface incidence illuminance D of curtain sample at this timeOut entersFor 856lx.
Light transmittance according to formula (1) calculating sample is 20.4%, and it is unidirectional saturating for evaluating its single plane fluoroscopy effect according to table 1
It is poor depending on property.
Detection test 2
A kind of knitting curtain is chosen as curtain sample to be tested.
Curtain sample is carried out to humidity adjustment in 4 hours or more, the curtain sample 1 of 60 × 60cm of clip in normal conditions
Block, then by curtain sample sufficiently, be covered on camera bellows case mouth tension-free;Internal light source in fixed-analog light source and camera bellows,
Make the first visual chart surface second row illumination 500lx in camera bellows, makes the analog light source and the first visual chart of curtain specimen surface
Between horizontal line by place incident illuminance be 700lx.
Tester stands to be open in analog light source (from outside to inside) and camera bellows rear portion respectively and observe (from inside to outside), sends out
Existing: the first visual chart inside camera bellows from penetrating curtain sample at analog light source does not see second row E;It is opened from camera bellows rear portion
Through the second visual chart at the outer analog light source of curtain sample observation camera bellows at mouthful, second row E can be seen clearly.Therefore judgement test
Phenomenon is " single plane fluoroscopy ".
At this point, closing internal light source, the horizontal line between the analog light source and the first visual chart close to curtain specimen surface
By place, the transmission illuminance D through curtain sample is measured with illumination photometerOut is saturatingFor 141lx.Internal light source is opened, is lowered gradually
Critical single plane fluoroscopy point of the analog light source illumination up to reaching curtain sample, the incident light of curtain specimen surface is measured with illumination photometer
Illumination DOut entersFor 473lx.
Light transmittance according to formula (1) calculating sample is 29.8%, and it is unidirectional saturating for evaluating its single plane fluoroscopy effect according to table 1
It is excellent depending on property.
It should be pointed out that can also have the embodiment of a variety of transformation and remodeling for the present invention through absolutely proving,
It is not limited to the specific embodiment of above embodiment.Above-described embodiment as just explanation of the invention, rather than to this
The limitation of invention.In short, protection scope of the present invention should include that those are apparent to those skilled in the art
Transformation or substitution and remodeling, and be determined by the appended claims.
Claims (9)
1. a kind of detection method of curtain single plane fluoroscopy performance characterized by comprising
Analog light source is set to the front of camera bellows, the front and rear of camera bellows all has opening, by the first visual chart and inside
Light source is set in camera bellows, and the second visual chart is set at analog light source;
By curtain sample damping before detection, the curtain sample of suitable size is taken to be covered in camera bellows front opening from curtain sample;
The illumination of fixing internal light source and analog light source;
Tester stands respectively observes the first visual chart and second through curtain sample in analog light source and camera bellows rear portion opening
Visual chart, result carries out corresponding follow-up test step according to the observation.
2. the detection method of curtain single plane fluoroscopy performance according to claim 1, which is characterized in that the analog light source,
The second row E of first visual chart, the second visual chart second row E in same horizontal line height.
3. the detection method of curtain single plane fluoroscopy performance according to claim 2, which is characterized in that fixing internal light source shines
Degree, makes the first visual chart surface second row illumination 500lx in camera bellows;Fixed-analog light illumination makes curtain specimen surface
Incident illuminance of the horizontal line at is 700lx between analog light source and the first visual chart.
4. the detection method of curtain single plane fluoroscopy performance according to claim 3, which is characterized in that tester stands in mould
The first visual chart in camera bellows is observed at quasi- light source, when cannot clearly recognize the first visual chart second row E through curtain sample
It is defined as " not seeing ";Tester station is in camera bellows rear portion opening through the second eyesight at curtain sample observation analog light source
Table is defined as " that sees is clear " when at least can clearly recognize the E of the second visual chart first row, this state is defined as the unidirectional of curtain
Viewpoint.
5. the detection method of curtain single plane fluoroscopy performance according to claim 4, which is characterized in that observation result and subsequent
Testing procedure is as follows:
1) impermeable through curtain sample the first visual chart of observation and the second visual chart in analog light source and camera bellows rear portion opening
Depending on: determine that the curtain sample does not have single plane fluoroscopy performance;
2) it is had an X-rayed in analog light source and camera bellows rear portion opening through curtain sample the first visual chart of observation and the second visual chart:
I.e. curtain specimen surface 700lx illumination when not up to single plane fluoroscopy effect, record incident illuminance > 700lx, close interior lights
Source between the analog light source and the first visual chart close to curtain specimen surface at horizontal line process, is measured with illumination photometer and is penetrated
The transmission illuminance of curtain sample;
3) only camera bellows rear portion opening through curtain sample observes the second visual chart perspective: internal light source is closed, close to curtain
Horizontal line penetrates the transmission of curtain sample with illumination photometer measurement between the analog light source of specimen surface and the first visual chart
Illuminance opens internal light source, lowers analog light source illumination gradually until reaching the critical single plane fluoroscopy point of curtain sample, with photograph
The incident illuminance of degree meter measurement window shade surface.
6. the detection method of curtain single plane fluoroscopy performance according to claim 5, which is characterized in that according to the transmission of measurement
The light transmittance of illuminance and incident light luminance calculation curtain sample;It is incident according to the light transmittance of curtain sample and curtain specimen surface
The quality of illuminance evaluation curtain single plane fluoroscopy performance.
7. the detection method of curtain single plane fluoroscopy performance according to claim 1-6, which is characterized in that the window
Side outside the faced chamber of curtain sample is as test surfaces.
8. the detection method of curtain single plane fluoroscopy performance according to claim 7, which is characterized in that the analog light source with
The distance between first visual chart in camera bellows is 2 meters.
9. a kind of evaluation method of curtain single plane fluoroscopy performance, which is characterized in that described in any item using claim 1-8
The detection method of curtain single plane fluoroscopy performance obtains:
(1) when the transparent effect of curtain is inside and outside impermeable apparent time: single plane fluoroscopy effective evaluation is no single plane fluoroscopy;
(2) when the transparent effect of curtain is inside and outside perspective: if the light transmittance < 14% of curtain sample and entering for curtain specimen surface
Illuminance > 700lx is penetrated, then single plane fluoroscopy effective evaluation is no single plane fluoroscopy;If light transmittance >=14% and window of curtain sample
The incident illuminance > 700lx of curtain specimen surface, then single plane fluoroscopy effective evaluation is that single plane fluoroscopy is poor;
(3) when the transparent effect of curtain is single plane fluoroscopy: if light transmittance >=14% of curtain sample and curtain specimen surface enter
Illuminance≤700lx is penetrated, then single plane fluoroscopy effective evaluation is that single plane fluoroscopy is good;If light transmittance >=14% and window of curtain sample
Incident illuminance≤500lx of curtain specimen surface, then single plane fluoroscopy effective evaluation is that single plane fluoroscopy is excellent.
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CN110044960A (en) * | 2019-05-17 | 2019-07-23 | 上海纺织集团检测标准有限公司 | Curtain class product radiant temperature experimental rig and its detection method |
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