CN2501045Y - Near infrared ray concentration receiver - Google Patents
Near infrared ray concentration receiver Download PDFInfo
- Publication number
- CN2501045Y CN2501045Y CN 01254161 CN01254161U CN2501045Y CN 2501045 Y CN2501045 Y CN 2501045Y CN 01254161 CN01254161 CN 01254161 CN 01254161 U CN01254161 U CN 01254161U CN 2501045 Y CN2501045 Y CN 2501045Y
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- CN
- China
- Prior art keywords
- light
- detector
- receiving
- near infrared
- integrating sphere
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- Expired - Lifetime
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
An enriching receiving device of near infrared comprises a detector 6, a receiving amplifier 7 fixedly connected with the detector and an integrating ball. The integrating ball comprises a receiving port 8, a light inlet 9, a shell 2 of a light outlet 10 and a chamber 1. The receiving device is characterized in that the device doesn't have a light-enriching device 3 having the function of enriching scattering light and fixedly arranged between the integrating ball 2 and the detector 6. The cone light-enriching device is arranged on the utility model between the detector and the integrating ball without increase of the receiving area to enrich the scattering light in the ineffective losing region of the receiving port of the integrating ball though the interface, the scattering light is enriched toward the effective area of the receiving area of the detector, so the detecting energy is enriched to enhance the receiving efficiency, finally, the signal-to-noise ratio of the host of instrument is enhanced.
Description
Technical field
The utility model relates to the near infrared light receiving trap in a kind of optical detecting instrument, relates in particular to a kind of near infrared light enrichment receiving trap that can play inrichment to scattered light.
Background technology
In traditional near infrared analyzer, near infrared integrating sphere (hereinafter to be referred as integrating sphere) generally directly is connected with detector, like this in order to improve its response, reducing thermal capacity does the receiving area of detector very for a short time usually, receiving area is little, and just to mean that energy obtains rate also little, therefore the signal to noise ratio (S/N ratio) of infrared analysis instrument can't improve, and promptly the measurement sensitivity of instrument can't improve.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of light enrichment receiving trap that can play inrichment to scattered light, that is: can more effectively collect the diffuse signal of getting in the integrating sphere, improve collection and get a kind of receiving trap of energy in the integrating sphere, the shortcoming that can't improve with the signal to noise ratio (S/N ratio) that overcomes the infrared analysis instrument.
The utility model is achieved in that
A kind of near infrared light enrichment receiving trap, comprise detector, the reception amplifier of fixedlying connected and be provided with receiving port with detector, light inlet, the integrating sphere of light-emitting window, integrating sphere comprises housing, cavity, it also is provided with a light enricher that can play inrichment to scattered light that is fixedly connected between integrating sphere and the sniffer, but the tapered and reflection ray of the inner hollow of light enricher, the one side that the opening of light enricher is bigger is aimed at the receiving port of integrating sphere, the receiving plane of the alignment detector that opening is less, it also sends out one by the heating radiator of screw retention around light enricher and detector.
The utility model is because under the situation that does not increase receiving area, between detector and integrating sphere housing an inside being installed is the light enricher of taper, can make the scattered light that is present in the invalid loss area on the integrating sphere receiving port obtain enrichment by this interface, collection is in the useful area of the receiving plane of detector, enrichment the detection energy, thereby improve the efficient that receives, finally improve the signal to noise ratio (S/N ratio) of instrument host.
Description of drawings
Shown in Figure 1 is the floor map of the embodiment of the utility model near infrared light enrichment receiving trap.
Embodiment
As shown in Figure 1: the near infrared when near infrared light enrichment receiving trap of the present utility model is used to measure quality of agricultural product receives, comprise the integrating sphere cavity 1 that scribbles optical reflection film, integrating sphere housing 2, detector 6, the reception amplifier 7 of fixedlying connected with detector 6, the light enricher 3 that connects integrating sphere housing 2 and detector 6, heating radiator 4, heat radiation shield assembly 5, but the tapered and reflection ray of the inwall of light enricher 3, described angle of taper is 10 degree, length is 20mm, integrating sphere is provided with receiving port 8, light inlet 9, light-emitting window 10, the one side that the opening of light enricher 3 is bigger is aimed at the receiving port 8 of integrating sphere, and area equates with integrating sphere receiving port area, the receiving plane of one side alignment detector 6 that opening is less, the another side of detector 6 is fixedlyed connected with reception amplifier 7, heating radiator 4 is fixed in around light enricher 3 and the detector 6 by screw 11, heating radiator 4 is used to reduce thermal capacity, avoid temperature too high and influence the signal to noise ratio (S/N ratio) of instrument, the heat radiation shield assembly is fixedlyed connected with heating radiator, described integrating sphere is fixed in the infrared analysis instrument, directly over the light-emitting window 10 of integrating sphere, be provided with sample cell 12, when the light source line of instrument enters integrating sphere cavity 1 from light inlet, light-emitting window 10 shines the sample in sample cell 12, enter the integrating sphere inwall through the light after the sample reflection and carry out diffuse reflection, light enricher 3 is collected light and is internally reflected to the receiving area of detector 6 by cone from the receiving port 8 of integrating sphere, reception amplifier 7 amplifies the signal that receives, and is used to identify the quality of sample etc.Owing to adopted cone structure, the aperture area on the integrating sphere 1 is increased, scattered light obtains enrichment by this bigger opening, collection is in the useful area of the receiving plane of detector 6, enrichment the detection energy, thereby the efficient that improve to receive finally improves the signal to noise ratio (S/N ratio) of instrument host.
Certainly this near infrared enrichment receiving trap not necessarily only is used for the mensuration of agricultural product, also can be used for other need instrument with the light enrichment in; The cone angle of described smooth enricher and length also can be set according to demand, and its cone angle can be the 5-15 degree, and length can be 15-30mm; The known simple structure conversion of all those skilled in that art all drops in the protection domain of the present utility model.
Claims (5)
1. near infrared light enrichment receiving trap, the reception amplifier (7) and the integrating sphere of comprise detector (6), fixedlying connected with detector, integrating sphere comprises housing (2), the cavity (1) that is provided with receiving port (8), light inlet (9), light-emitting window (10), it is characterized in that: it also is provided with a light enricher (3) that can play inrichment to scattered light that is fixedly connected between integrating sphere housing (2) and detector (6).
2. near infrared light enrichment receiving trap according to claim 1, it is characterized in that: light enricher (3) but the tapered and reflection ray of inner hollow, the one side that the opening of light enricher (3) is bigger is aimed at the receiving port of integrating sphere, and area equates with integrating sphere receiving port (8) area, the receiving plane of the alignment detector (6) that opening is less.
3, near infrared light enrichment receiving trap according to claim 1 is characterized in that: it also is provided with one and is fixed in light enricher (3) and detector (6) heating radiator (4) all around by screw (11).
4, near infrared light enrichment receiving trap according to claim 2, it is characterized in that: the angle of the interior cone of described smooth enricher (3) can be the 5-15 degree, and length can be 15-30mm.
5, near infrared light enrichment receiving trap according to claim 2 is characterized in that: the inner taper angle of described smooth enricher (3) is 10 degree, and length is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254161 CN2501045Y (en) | 2001-10-12 | 2001-10-12 | Near infrared ray concentration receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254161 CN2501045Y (en) | 2001-10-12 | 2001-10-12 | Near infrared ray concentration receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2501045Y true CN2501045Y (en) | 2002-07-17 |
Family
ID=33663537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01254161 Expired - Lifetime CN2501045Y (en) | 2001-10-12 | 2001-10-12 | Near infrared ray concentration receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2501045Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839802A (en) * | 2010-05-21 | 2010-09-22 | 西安工业大学 | Laser integral scattered power multi-angle comprehensive measurement device for high reflector |
| CN102033055B (en) * | 2007-03-01 | 2013-05-29 | 浜松光子学株式会社 | Light detection device |
| CN104215956A (en) * | 2014-08-25 | 2014-12-17 | 中国科学院长春光学精密机械与物理研究所 | System for providing high-light integrating sphere calibration light sources |
| CN105334164A (en) * | 2014-08-08 | 2016-02-17 | 中国计量学院 | Tapered photocoupling on-site sampling probe for detecting water quality |
| CN107314814A (en) * | 2017-05-18 | 2017-11-03 | 上海卫星工程研究所 | The spectroscopic light source system of uniform surface-emitting type gas absorption cell |
| CN109297947A (en) * | 2018-12-05 | 2019-02-01 | 深圳市微谱科技有限公司 | A kind of photoluminescence or scattering optical measurement instrument |
| CN109916846A (en) * | 2019-02-19 | 2019-06-21 | 中国科学院合肥物质科学研究院 | A kind of flux detection integrating sphere dodging device |
-
2001
- 2001-10-12 CN CN 01254161 patent/CN2501045Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033055B (en) * | 2007-03-01 | 2013-05-29 | 浜松光子学株式会社 | Light detection device |
| CN101839802A (en) * | 2010-05-21 | 2010-09-22 | 西安工业大学 | Laser integral scattered power multi-angle comprehensive measurement device for high reflector |
| CN105334164A (en) * | 2014-08-08 | 2016-02-17 | 中国计量学院 | Tapered photocoupling on-site sampling probe for detecting water quality |
| CN104215956A (en) * | 2014-08-25 | 2014-12-17 | 中国科学院长春光学精密机械与物理研究所 | System for providing high-light integrating sphere calibration light sources |
| CN104215956B (en) * | 2014-08-25 | 2016-11-02 | 中国科学院长春光学精密机械与物理研究所 | A kind of system that high brightness integrating sphere scaling light source is provided |
| CN107314814A (en) * | 2017-05-18 | 2017-11-03 | 上海卫星工程研究所 | The spectroscopic light source system of uniform surface-emitting type gas absorption cell |
| CN109297947A (en) * | 2018-12-05 | 2019-02-01 | 深圳市微谱科技有限公司 | A kind of photoluminescence or scattering optical measurement instrument |
| CN109297947B (en) * | 2018-12-05 | 2024-01-23 | 深圳市微谱科技有限公司 | Photo-induced fluorescence or scattered light measuring device |
| CN109916846A (en) * | 2019-02-19 | 2019-06-21 | 中国科学院合肥物质科学研究院 | A kind of flux detection integrating sphere dodging device |
| CN109916846B (en) * | 2019-02-19 | 2021-12-24 | 中国科学院合肥物质科学研究院 | Flux detection integrating sphere light uniformizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111012 Granted publication date: 20020717 |