CN104122239A - Multi-probe fluorescence sensing device - Google Patents
Multi-probe fluorescence sensing device Download PDFInfo
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- CN104122239A CN104122239A CN201310153024.6A CN201310153024A CN104122239A CN 104122239 A CN104122239 A CN 104122239A CN 201310153024 A CN201310153024 A CN 201310153024A CN 104122239 A CN104122239 A CN 104122239A
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- light source
- fluorescence sensing
- fluorescence
- sensing chip
- detection interval
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Abstract
The invention relates to a multi-probe fluorescence sensing device. The multi-probe fluorescence sensing device comprises a first photoelectric detector, a first fluorescence sensing plate, a second photoelectric detector, a second fluorescence sensing plate, an LED (light emitting diode) light source and a light source isolation plate, wherein the LED light source is a broadband light source with a given divergence angle; the light beam transmitted by the LED light source is divided by the light source isolation plate into a first detection interval and a second detection interval which are equally spaced or non-equally spaced; the first photoelectric detector and the first fluorescence sensing plate are arranged in the first detection interval; the second photoelectric detector and the second fluorescence sensing plate are arranged in the second detection interval, and fluorescence sensing signals generated in the first detection interval and the second detection interval are free from being mutually influenced by each other. The multi-probe fluorescence sensing device is characterized in that the LED light source with the given divergence angle is divided into two light radiation intervals to be used as the light source of the two fluorescence sensing plates, so that two-point or multi-parameter fluorescence sensing and detection can be realized by adopting a single light source.
Description
Technical field
The invention belongs to photoelectric sensing field, particularly a kind of different material that utilizes realizes on the effect that affects of fluorescence spectrum many probes fluorescence sensing device that physics to material or chemical property are surveyed.
Background technology
Utilizing different material is a kind of conventional sensing technology on the sensing that affects effect realization detection of fluorescence spectrum, conventionally fluorescent material is coated on a transparent material, seeing through transparent material deexcitation fluorescent material with a light source with certain bandwidth makes it produce certain fluorescence, the power of the spectrum of this fluorescence is relevant with the concentration that acts on the material on fluorescent material, therefore, can reach by measuring the power of spectrum of this fluorescence the concentration of surveying this material.Usually, such sensing device adopts independently excitation source of a kind of fluorescent material and for a kind of physics of material or the detection of chemical quantity, if need the detection to many kinds of substance simultaneously, often need multiple fluorescent material and adopt multiple independently excitation sources.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, size is little, and cost is low, can utilize single light source is isolated into multiple intervals excites respectively different fluorescent materials, thereby realize the detection to multiple sensing points or many kinds of substance with single light source.
The present invention solves its technical matters and realizes by the following technical solutions:
A kind of many probe fluorescence sensing devices, comprise the first photodetector, the first fluorescence sensing chip, the second photodetector, the second fluorescence sensing chip, LED light source and light source division board, and described LED light source is a kind of light source with certain angle of divergence; The light beam that described light source division board sends described LED light source is isolated into two uniformly-spaced or the first detection interval of unequal interval and the second detection interval; Described the first photodetector and the first fluorescence sensing chip are positioned in the first detection interval; Described the second photodetector and the second fluorescence sensing chip are positioned in the second detection interval, and the fluorescence induced signal producing in the first detection interval and the second detection interval does not produce and influences each other,
And described the first fluorescence sensing chip and the second fluorescence sensing chip can adopt identical excitation source.
And described the first fluorescence sensing chip and described the first photodetector have identical spectral range, the second fluorescence sensing chip and described the second photodetector have identical spectral range.
And described light source division board is a kind of to described LED light source and the opaque material of fluorescence to described the first fluorescence sensing chip and the generation of the second fluorescence sensing chip, and this opaque material is a kind of very thin thickness flaky material.
Advantage of the present invention and beneficial effect are:
1. the fluorescence sensing device of probe, is isolated into two or more intervals with the opaque sheeting of a slice by LED light source and excites respectively different fluorescent materials, thus realization detection to multiple sensing points or many kinds of substance with single light source.
2. the fluorescence sensing device of probe, simple for structure, size is little, reasonable in design, and energy consumption is little, and cost is low.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
As shown in Figure 1, the present invention includes the first photodetector 6, the first fluorescence sensing chip 2, the second photodetector 16, the second fluorescence sensing chip 12, LED light source 10 and light source division board 8, LED light source 8 is a kind of light sources with certain angle of divergence θ, and light distribution in this spread angle range is evenly approximate, be isolated into by light source division board 8 that two of left and right equate or interval not etc., the first photodetector 6 and the first fluorescence sensing chip 2 are positioned at the left side of light source division board 8, the light 4 in LED light source 10 left sides is irradiated on the first fluorescence sensing chip 2, the fluorescence of its generation is a kind of scattered light, a part of scattered light is wherein received by the first photodetector 6, the second photodetector 16 and the second fluorescence sensing chip 12 are positioned at the right side of light source division board 8, the fluorescence of its generation is a kind of scattered light, a part of scattered light is wherein received by the second photodetector 16, the fluorescence intensity detecting by the first photodetector 6 and fluorescence and the second photodetector 16 can detect the concentration or other physics or the chemical characteristic that act on the material on the first fluorescence sensing chip 2 and the second fluorescence sensing chip 12, if what the first fluorescence sensing chip 2 and the second fluorescence sensing chip 12 adopted is different materials, apparatus of the present invention can realize and realize physics to two kinds of different materials or the detection of chemical property with single excitation source.Same principle, can adopt multiple light source division boards that LED light source 10 is isolated into plural interval, and realization realizes physics or the detection of chemical property or the Multi-point detection of same material to two or more different materials with single excitation source.It is pointed out that light source division board 8 not only needs only opaque to LED light source 10, but also the fluorescence that need send the first fluorescence sensing chip 2 and the second fluorescence sensing chip 12 is also opaque, to prevent influencing each other between two transducing signals.Fig. 2 is the vertical view of Fig. 1, the left view that Fig. 3 is Fig. 1.
Innovation of the present invention is: with the opaque sheeting of a slice, LED light source is isolated into two or more intervals and excites respectively different fluorescent materials, thereby realize the detection to multiple sensing points or many kinds of substance, and simple for structure, size is little, reasonable in design, energy consumption is little, and cost is low, particularly, for the sensing detection of portable many materials or many reference amounts, there is larger advantage.
Claims (4)
1. the fluorescence sensing device of probe more than, comprises the first photodetector, the first fluorescence sensing chip, the second photodetector, the second fluorescence sensing chip, LED light source and light source division board, and described LED light source is a kind of light source with certain angle of divergence; The light beam that described light source division board sends described LED light source is isolated into two uniformly-spaced or the first detection interval of unequal interval and the second detection interval; Described the first photodetector and the first fluorescence sensing chip are positioned in the first detection interval; Described the second photodetector and the second fluorescence sensing chip are positioned in the second detection interval, and the fluorescence induced signal producing in the first detection interval and the second detection interval does not produce and influences each other.
2. according to the fluorescence sensing device of popping one's head in of the one described in right 1, it is characterized in that: the first fluorescence sensing chip and the second fluorescence sensing chip can adopt identical excitation source more.
3. according to the fluorescence sensing device of popping one's head in of the one described in right 1 more, it is characterized in that: described the first fluorescence sensing chip and described the first photodetector have identical spectral range, the second fluorescence sensing chip and described the second photodetector have identical spectral range.
4. according to the fluorescence sensing device of popping one's head in of the one described in right 1, it is characterized in that: described light source division board is a kind of opaque sheeting of fluorescence producing to described LED light source with to described the first fluorescence sensing chip and the second fluorescence sensing chip more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153024.6A CN104122239A (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescence sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153024.6A CN104122239A (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescence sensing device |
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| Publication Number | Publication Date |
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| CN104122239A true CN104122239A (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310153024.6A Pending CN104122239A (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescence sensing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945521A (en) * | 2021-01-27 | 2021-06-11 | 广东天讯达资讯科技股份有限公司 | Laser device divergence angle testing device based on camera two-point testing method |
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| US3249754A (en) * | 1962-03-26 | 1966-05-03 | Beckman Instruments Inc | Double beam fluorometer using an alternately activated double beam lamp |
| GB1482096A (en) * | 1974-03-13 | 1977-08-03 | Schoeffel Instrument Corp | Multi-channel photometric instruments |
| CN1507560A (en) * | 2001-05-04 | 2004-06-23 | ҽҩ����ѧ��������˾ | Electro-optical sensing device with reference channel |
| JP2005009876A (en) * | 2003-06-16 | 2005-01-13 | Aisin Cosmos R & D Co Ltd | Excitation light irradiation device for fluorescence analysis |
| CN203287314U (en) * | 2013-04-28 | 2013-11-13 | 天津奇谱光电技术有限公司 | Multi-probe fluorescent sensing device |
| CN203432909U (en) * | 2013-07-02 | 2014-02-12 | 天津奇谱光电技术有限公司 | Multi-probe fluorescent sensing device |
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2013
- 2013-04-28 CN CN201310153024.6A patent/CN104122239A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249754A (en) * | 1962-03-26 | 1966-05-03 | Beckman Instruments Inc | Double beam fluorometer using an alternately activated double beam lamp |
| GB1482096A (en) * | 1974-03-13 | 1977-08-03 | Schoeffel Instrument Corp | Multi-channel photometric instruments |
| CN1507560A (en) * | 2001-05-04 | 2004-06-23 | ҽҩ����ѧ��������˾ | Electro-optical sensing device with reference channel |
| JP2005009876A (en) * | 2003-06-16 | 2005-01-13 | Aisin Cosmos R & D Co Ltd | Excitation light irradiation device for fluorescence analysis |
| CN203287314U (en) * | 2013-04-28 | 2013-11-13 | 天津奇谱光电技术有限公司 | Multi-probe fluorescent sensing device |
| CN203432909U (en) * | 2013-07-02 | 2014-02-12 | 天津奇谱光电技术有限公司 | Multi-probe fluorescent sensing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945521A (en) * | 2021-01-27 | 2021-06-11 | 广东天讯达资讯科技股份有限公司 | Laser device divergence angle testing device based on camera two-point testing method |
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Application publication date: 20141029 |