CN102564956A - Near-infrared sample collecting device and method - Google Patents
Near-infrared sample collecting device and method Download PDFInfo
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- CN102564956A CN102564956A CN2011104616911A CN201110461691A CN102564956A CN 102564956 A CN102564956 A CN 102564956A CN 2011104616911 A CN2011104616911 A CN 2011104616911A CN 201110461691 A CN201110461691 A CN 201110461691A CN 102564956 A CN102564956 A CN 102564956A
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Abstract
The invention relates to a near-infrared sample collecting device. The near-infrared sample collecting device comprises a light source, a detecting and analyzing unit, a control unit and an alarming unit, wherein the detecting and analyzing unit is used for collecting lights, which are emitted by the light source and penetrate through a sample to be detected, and transmitting a detecting result to the control unit; the control unit is used for judging whether the light penetrating through the sample to be detected exists or not according to the detecting result and transmitting a judging result to the alarming unit; and the alarming unit is used for generating alarming information according to the judging result, and if the light penetrating through the sample to be detected exists, prompting that the sample state is invalid, and if the light penetrating through the sample to be detected does not exist, prompting that the sample state is valid. The invention further provides a near-infrared sample collecting method. The near-infrared sample collecting device and method, provided by the invention, have the advantages of good detecting condition homogeneity, simplicity, convenience and rapidness in operation, and the like.
Description
Technical field
The present invention relates to a kind of sample collecting apparatus and method, especially a kind of near infrared sample collecting apparatus and method.
Background technology
The near infrared sample detection means is a kind of device of sample being realized the near-infrared diffuse reflectance detection.
See also Fig. 1, a kind of widely used sample detection means is directly sample to be placed on the reflecting material top at present, again near-infrared probe is close to the fiber upper surface and detects.
Such pick-up unit can be realized the detection to sample, but can not guarantee the consistance of testing conditions.Because the difference of thickness, the number of plies, color and the material of measured object cause that occurring passing through shown in Fig. 1 when detecting reflects and two kinds of detection modes of diffuse reflection, and detection mode is a key factor that influences testing result, makes that the homogeneity of testing result is relatively poor.
Summary of the invention
In order to solve above-mentioned deficiency of the prior art, the invention provides a kind of near infrared sample collecting apparatus and method that can guarantee the testing conditions homogeneity.
For realizing the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of near infrared sample collecting apparatus comprises:
Light source;
The detection analysis unit, what said detection analysis unit collection light source sent passes to control module through the light of testing sample and with result of detection;
Control module, said control module has judged whether the light transmission testing sample according to result of detection, and judged result is passed to alarm unit;
Alarm unit, said alarm unit generates warning message according to judged result:
If the light transmission testing sample is arranged, the prompting sample state is invalid;
If the unglazed testing sample that sees through, the prompting sample state is effective.
Further, said light source comprises first light source and secondary light source;
Said detection analysis unit comprises first detector and second detector;
Said first detector is used to receive the light that is reflected by testing sample that first light source sends; Said second detector is used to receive the light that sees through testing sample that secondary light source sends;
Said control module has judged whether the light transmission testing sample according to the result of detection of second detector; And judged result passed to alarm unit; And control first light source and first detector according to the warning message of alarm unit and collect, and sample composition is analyzed by the light of testing sample reflection.
Further, first light source and secondary light source are same light source.
Further, the said secondary light source and first light source are arranged on the homonymy or the heteropleural of testing sample.
Further, said warning message sends warning through hardware componenies such as sound, light, electricity.
Further, said sample collecting apparatus also comprises optical window, and said optical window comprises first form and second form; Testing sample is arranged between first form and second form.
Further, said sample collecting apparatus also comprises the application of force module that links to each other with said control module, and said control module is controlled the said application of force module sample is fixed.
As preferably, said first form is arranged on the application of force module.
Further, said application of force module comprises the standard weight.
The present invention also provides a kind of near infrared sample collection method, may further comprise the steps:
A, the testing sample of packing into;
The measuring light that B, light source send shines on the testing sample;
C, detection see through the light of testing sample, have judged whether the light transmission testing sample, and generate warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, and the adjustment sample state returns steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, the diffuse signal of collected specimens, and sample composition analyzed.
Further, adopt above-mentioned arbitrary described sample collecting apparatus to carry out the collection of near infrared sample signal.
The present invention compared with prior art has following beneficial effect:
1, guaranteed the homogeneity of testing conditions
Through the infrared eye detection technique, realize whether near infrared light penetrates the detection of measured object, the unitarity of the diffuse reflectance measurement mode when having guaranteed sample detection; Simultaneously, the validity of testing result has been carried out prompting directly perceived;
2, evenly press the mode of sample through the standard weight, realize that sample tight ness rating one sample of making peace is smooth;
3,, realize that tight ness rating is constant in testing process through locking function;
4, device is simple, and reliability is high.
Description of drawings
Fig. 1 is the structural representation of near infrared sample detection means in the background technology;
Fig. 2 is the structural representation of sample collecting apparatus among the embodiment 9.
Embodiment
Embodiment 1
A kind of near infrared sample collecting apparatus comprises: light source, detection analysis unit, control module and alarm unit;
The light that sees through testing sample that light source sends is gathered in said detection analysis unit;
Control module, said control module has judged whether the light transmission testing sample according to result of detection, and judged result is passed to alarm unit;
Alarm unit, said alarm unit generates warning message according to judged result:
If the light transmission testing sample is arranged, the prompting sample state is invalid;
If the unglazed testing sample that sees through, the prompting sample state is effective.
The present invention realizes through the near infrared detector detection technique whether near infrared light penetrates the detection of measured object, and the homogeneity of the testing conditions when having guaranteed sample detection promptly all is diffuse reflectance measurement modes;
Further, said alarm unit be sound, light, etc. hardware component, the validity of testing result has been carried out prompting directly perceived.
As preferably, said near infrared sample collecting apparatus can also be used for the validity near infrared sample detection process indication sample detection result, at this moment:
Said light source comprises first light source and secondary light source;
Said detection analysis unit comprises first detector and second detector;
Said first detector is used to receive the light that is reflected by testing sample that first light source sends; Said second detector is used to receive the light that sees through testing sample that secondary light source sends;
Said control module has judged whether the light transmission testing sample according to the result of detection of second detector; And judged result passed to alarm unit; And control first light source and first detector according to the warning message of alarm unit and collect, and sample composition is analyzed by the light of testing sample reflection.
Further, first light source and secondary light source are same light source.At this moment, first detector and second detector lay respectively at the both sides of testing sample, receive diffusing and transmitted light of sample respectively.
Further, the said secondary light source and first light source are arranged on the homonymy or the heteropleural of testing sample.
Further, said sample collecting apparatus also comprises optical window, and said optical window comprises first form and second form; Testing sample is arranged between first form and second form.
Further, said sample collecting apparatus also comprises the application of force module that links to each other with said control module, and said control module is controlled the said application of force module sample is fixed, and is smooth to realize sample tight ness rating one sample of making peace.
As preferably, said first form is arranged on the application of force module.
Further, said application of force module comprises the standard weight.
Further, testing sample is a fiber sample.
Present embodiment also provides a kind of near infrared sample collection method, may further comprise the steps:
The near infrared sample collecting apparatus of A, sampling present embodiment; The testing sample of packing into;
The measuring light that B, light source send shines on the testing sample;
C, detection see through the light of testing sample, have judged whether the light transmission testing sample, and generate warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, and the adjustment sample state returns steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, the diffuse signal of collected specimens, and sample composition analyzed.
Embodiment 2
A kind of sample collecting apparatus comprises light source, detection analysis unit, control module and alarm unit;
Said light source is a near-infrared light source, like tungsten lamp;
Said detection analysis unit links to each other with control module, is infrared eye, like silicon detector;
Said light source and detection analysis unit are separately positioned on the two ends of testing sample, and said detector is used to gather the light that sees through testing sample that light source sends;
Said control module has judged whether the light transmission testing sample according to the result of detection of detection analysis unit, and judged result is passed to alarm unit;
Alarm unit, said alarm unit generates warning message according to judged result.
For the detection to sample signal all is a diffuse signal; Then adopt with the detector of light source homonymy sample signal is gathered; But if any the light transmission testing sample; The doping that reflected signal is arranged in the diffuse signal of being gathered is described, is made, influence testing result the homogeneity variation of the testing conditions of sample signal.At this moment, explain that the testing sample thickness low LCL or the folding number of plies are not enough, the state of interpret sample is not the optimum measurement state, and sample state also need be adjusted, and the prompting sample state is invalid;
If the unglazed testing sample that sees through explains that then the diffuse signal of being gathered does not have the doping of reflected signal basically, pointing out sample state this moment is that effectively the detector that is in the light source homonymy can be gathered the testing sample signal, and further analyzes.
Present embodiment also provides a kind of near infrared sample collection method, may further comprise the steps:
The near infrared sample collecting apparatus of A, employing present embodiment; The testing sample of packing into;
The measuring light that B, light source send shines on the testing sample;
C, detection see through the light of testing sample, have judged whether the light transmission testing sample, and generate warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, the adjustment sample state, or increase thickness of sample, or increase the folding number of plies of sample, return steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, the diffuse signal of collected specimens, and sample composition analyzed.
Embodiment 3
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 2 is:
The light source of present embodiment comprises first light source and secondary light source, and detector is first detector and second detector; Said first detector is used to receive the light that is reflected by testing sample that first light source sends; Said second detector is used to receive the light that sees through testing sample that secondary light source sends;
Said control module has judged whether the light transmission testing sample according to the result of detection of second detector; And judged result passed to alarm unit; And control first light source and first detector according to the warning message of alarm unit and collect, and sample composition is analyzed by the light of testing sample reflection.
First light source and secondary light source are same light source, and then this moment, first detector and first light source are arranged on the homonymy of testing sample, and second detector and first light source are arranged on the heteropleural of testing sample.
Said first light source is the near-infrared light source tungsten lamp, and said first detector and second detector are near infrared InGaSe detector
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 2 is:
Present embodiment also provides a kind of near infrared sample collection method, may further comprise the steps:
1, in steps A, adopts the near infrared sample collecting apparatus of present embodiment;
2, in step B, the rayed that first light source sends is on fiber sample to be measured;
3, in step C, second detector is surveyed the light that sees through testing sample, has judged whether the light transmission testing sample, and generates warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, and then the detection of first detector is invalid, needs the adjustment sample state, or increases thickness of sample, or increases the folding number of plies of sample, returns steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, and the detection of first detector is effective, the diffuse signal of the first detector collected specimens, and sample composition analyzed.
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 3 is:
First light source is different with secondary light source, and the secondary light source and first light source are in the homonymy or the heteropleural of testing sample, and second detector and secondary light source are in the heteropleural of testing sample.Wherein, secondary light source is a led light source.
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 3 is:
1, in steps A, adopts the near infrared sample collecting apparatus of present embodiment;
2, in step B, the rayed that secondary light source sends is on testing sample;
3, in step C, second detector is surveyed the light that sees through testing sample, has judged whether the light transmission testing sample, and generates warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, and the detection of first detector is invalid, the adjustment sample state, or increase thickness of sample, or increase the folding number of plies of sample, return steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, and the detection of first detector is effective, then the rayed sent of first light source on testing sample, the diffuse signal of the first detector collected specimens, and sample composition analyzed.
Embodiment 5
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 4 is:
Said near infrared sample collecting apparatus also comprises optical window, and said optical window comprises first form and second form, and testing sample is close to first form and second form, is arranged between first form and second form.First light source, secondary light source, first detector and second detector are separately positioned on the both sides of first form and second form,
Said optical window can see through the light that first light source and secondary light source send and diffuse, reflected light and transmitted light thoroughly.
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 4 is:
In steps A, adopt the near infrared sample collecting apparatus of present embodiment,
The testing sample of between first form and second form, packing into.
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 5 is:
Said near infrared sample collecting apparatus also comprises the application of force module that links to each other with said control module, and said control module is controlled the said application of force module sample is fixed, and is smooth to realize sample tight ness rating one sample of making peace.
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 5 is:
In steps A, adopt the near infrared sample collecting apparatus of present embodiment, the testing sample of between first form and second form, packing into, control module control application of force module is fixed testing sample, and is smooth to realize sample tight ness rating one sample of making peace.
Embodiment 7
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 6 is:
Said first form is arranged on the application of force module, so more helps first form and in printing opacity, also testing sample is compressed, and makes apparatus structure compact more, and sample tight ness rating consistance is better.
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 6 is:
In steps A, adopt the near infrared sample collecting apparatus of present embodiment, testing sample to be packed between first form and second form, control module control application of force module is fixed testing sample, and is smooth to realize sample tight ness rating one sample of making peace.
Embodiment 8
A kind of near infrared sample collecting apparatus, different with the near infrared sample collecting apparatus described in the embodiment 7 is:
Said application of force module comprises the standard weight, and to realize that different samples all adopts the weight of same weight that sample is flattened, during measurement, the planarization of testing sample is better.
Present embodiment also provides a kind of near infrared sample collection method, and different with the near infrared sample collection method described in the embodiment 7 is:
In steps A, adopt the near infrared sample collecting apparatus of present embodiment; Testing sample is packed between first form and second form, and the standard weight in the control module control application of force module is fixed testing sample, and is smooth to realize sample tight ness rating one sample of making peace.
Embodiment 9
See also Fig. 2, a kind of near infrared sample collecting apparatus comprises: light source, detection analysis unit, control module 4, optical window and alarm unit 6;
Said light source comprises first light source 21 and secondary light source 21; Said detection analysis unit comprises first detector 31 and second detector 32;
Said optical window comprises first form 21 and second form 22, and said first form 21 and second form 22 are arranged on the mount pad 10, and said first form 21 also is arranged on the standard weight 51, and said standard weight 51 also comprises locking member 53;
After testing sample 1 was packed between first form 11 and second form 12, standard weight 51 moved up and down through traveller 52, and testing sample 1 is compressed, and is consistent to guarantee the sample tight ness rating; Locking member 53 is a set nut, with standard weight 51 locking, guarantees that the tight ness rating that in testing process external force does not influence measured object changes.
The order that is provided with of above-mentioned each parts is:
First light source 21, first form 11, testing sample 1, second form 12, first detector 32;
Said secondary light source 22, first detector 31 and first light source 21 are arranged on the homonymy of first form 11; Said second detector 32 and first light source 21 are arranged on the heteropleural of testing sample 1.
Said control module 4 links to each other with the detection analysis unit, according to the result of detection of second detector 32, has judged whether the light transmission testing sample, and judged result is passed to alarm unit 6;
Said alarm unit 6 generates warning message according to judged result, and the alarm unit of present embodiment is a warning light:
If the light transmission testing sample is arranged; Be described this moment, the light transmission that sends of secondary light source 22 testing sample 1, can cause first detector 31 to receive the reflected light that passes through on testing sample 1 surface; Therefore need the prompting sample state invalid; The detection of first detector 31 is invalid, and warning light reddens, and indication needs dress appearance again;
If the unglazed testing sample that sees through explains that the light that sends of secondary light source 22 this moment does not see through testing sample 1, then; Need the prompting sample state effective; The detection of first detector 31 is effective, and it is green that warning light turns, then; First detector 31 is surveyed diffusing of testing sample 1 surface, and further obtains the analysis result of testing sample 1.
Present embodiment also provides a kind of near infrared sample collection method, may further comprise the steps:
The near infrared sample collecting apparatus of A, employing present embodiment;
Testing sample 1 is packed between first form 11 and second form 12; Standard weight 51 in the control module 4 control application of force modules is fixed testing sample 1; Locking module 53 is locked at standard weight 51 on the traveller 52, to realize testing sample 1 tight ness rating one the smooth of testing sample 1 of making peace;
The rayed that B, secondary light source 22 send is on testing sample 1;
C, second detector 32 are surveyed the light that sees through testing sample 1, judged whether light transmission testing sample 1, and judged result is passed to alarm unit 6;
Said alarm unit 6 generates warning message according to judged result:
If warning light reddens, then explanation has light transmission testing sample 1, and the prompting sample state is invalid, and it is invalid to detect, the adjustment sample state, or increase thickness of sample, or increase the folding number of plies of sample, return steps A;
If warning light turns green; The unglazed testing sample that sees through then is described, expression is measured and is satisfied the diffuse reflection testing conditions, and the prompting sample state is effective; Detect effectively; The rayed that first light source 21 sends on testing sample 1, the diffuse signal of first detector, 31 collected specimens, and the testing sample composition analyzed.
Above-mentioned embodiment should not be construed as the restriction to protection domain of the present invention.Key of the present invention is: whether see through sample through detecting, guarantee the consistance of sample detection condition.Under the situation that does not break away from spirit of the present invention, any type of change that the present invention is made all should fall within protection scope of the present invention.
Claims (11)
1. near infrared sample collecting apparatus comprises:
Light source;
The detection analysis unit, what said detection analysis unit collection light source sent passes to control module through the light of testing sample and with result of detection;
Control module, said control module has judged whether the light transmission testing sample according to result of detection, and judged result is passed to alarm unit;
Alarm unit, said alarm unit generates warning message according to judged result:
If the light transmission testing sample is arranged, the prompting sample state is invalid;
If the unglazed testing sample that sees through, the prompting sample state is effective.
2. sample collecting apparatus according to claim 1 is characterized in that:
Said light source comprises first light source and secondary light source;
Said detection analysis unit comprises first detector and second detector;
Said first detector is used to receive the light that is reflected by testing sample that first light source sends; Said second detector is used to receive the light that sees through testing sample that secondary light source sends;
Said control module has judged whether the light transmission testing sample according to the result of detection of second detector; And judged result passed to alarm unit; And control first light source and first detector according to the warning message of alarm unit and collect, and sample composition is analyzed by the light of testing sample reflection.
3. sample collecting apparatus according to claim 2 is characterized in that: first light source and secondary light source are same light source.
4. sample collecting apparatus according to claim 2 is characterized in that: the said secondary light source and first light source are arranged on the homonymy or the heteropleural of testing sample.
5. according to the arbitrary described sample collecting apparatus of claim 1～4, it is characterized in that: said warning message sends warning through sound, light, electric hardware component.
6. according to the arbitrary described sample collecting apparatus of claim 1～4, it is characterized in that: said sample collecting apparatus also comprises optical window, and said optical window comprises first form and second form; Testing sample is arranged between first form and second form.
7. sample collecting apparatus according to claim 6 is characterized in that: said sample collecting apparatus also comprises the application of force module that links to each other with said control module, and said control module is controlled the said application of force module sample is fixed.
8. sample collecting apparatus according to claim 7 is characterized in that: said first form is arranged on the application of force module.
9. according to claim 7 or 8 described sample collecting apparatus, it is characterized in that: said application of force module comprises the standard weight.
10. near infrared sample collection method may further comprise the steps:
A, the testing sample of packing into;
The measuring light that B, light source send shines on the testing sample;
C, detection see through the light of testing sample, have judged whether the light transmission testing sample, and generate warning message:
If the light transmission testing sample is arranged, the prompting sample state is invalid, and the adjustment sample state returns steps A;
If the unglazed testing sample that sees through, the prompting sample state is effective, the diffuse signal of collected specimens, and sample composition analyzed.
11. sample collection method according to claim 10 is characterized in that: adopt the arbitrary described sample collecting apparatus of claim 1～9 to carry out the collection of near infrared sample signal.
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| JP4452277B2 (en) * | 2004-07-27 | 2010-04-21 | 三菱化学メディエンス株式会社 | Automatic discrimination method of test sample |
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| JP4452277B2 (en) * | 2004-07-27 | 2010-04-21 | 三菱化学メディエンス株式会社 | Automatic discrimination method of test sample |
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Application publication date: 20120711 |