CN203287314U - Multi-probe fluorescent sensing device - Google Patents
Multi-probe fluorescent sensing device Download PDFInfo
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- CN203287314U CN203287314U CN2013202242754U CN201320224275U CN203287314U CN 203287314 U CN203287314 U CN 203287314U CN 2013202242754 U CN2013202242754 U CN 2013202242754U CN 201320224275 U CN201320224275 U CN 201320224275U CN 203287314 U CN203287314 U CN 203287314U
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- fluorescence
- fluorescent sensing
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Abstract
The utility model relates to a multi-probe fluorescent sensing device. The multi-probe fluorescent sensing device comprises a first photoelectric detector, a first fluorescent sensing piece, a second photoelectric detector, a second fluorescent sensing piece, an LED light source and a light source division board, wherein the LED light source is a wideband light source with a certain diverging angle; the light source division board isolates light beams emitted by the LED light source into a first detection interval and a second detection interval which are equally spaced or unequally spaced; the first photoelectric detector and the first fluorescent sensing piece are placed in the first detection interval; the second photoelectric detector and the second fluorescent sensing piece are placed in the second detection interval, and fluorescent sensing signals generated in the first detection interval and the second detection interval are not mutually influenced. The multi-probe fluorescent sensing device has the innovative characteristics that the LED light source with a certain diverging angle is divided into two light emission intervals to serve as light sources of the two fluorescent sensing pieces, so that two-point or multi-parameter fluorescent sensing and detecting can be realized by adopting one light source.
Description
Technical field
The invention belongs to the photoelectric sensing field, particularly a kind of affect the many probe fluorescence sensing device that effect realization to physics or the chemical property of material survey of different material on fluorescence spectrum that utilize.
Background technology
Utilizing different material is a kind of sensing technology commonly used on the sensing that affects effect realization detection of fluorescence spectrum, usually fluorescent material is coated on a transparent material, make it produce certain fluorescence with a light source with certain bandwidth through transparent material deexcitation fluorescent material, the power of the spectrum of this fluorescence is relevant with the concentration of material on acting on fluorescent material, therefore, the power of the spectrum by measuring this fluorescence can reach the concentration of surveying this material.Usually, such sensing device adopts independently excitation source of a kind of fluorescent material and for the detection of a kind of physics of material or chemical quantity,, if need simultaneously to the detection of many kinds of substance, often need multiple fluorescent material and adopt a plurality of 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 a plurality of intervals excites respectively different fluorescent materials, thereby realize with the detection of single light source to a plurality of sensing points or many kinds of substance.
The utility model 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 that produces 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, and 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 that described the first fluorescence sensing chip and the second fluorescence sensing chip are produced, and this opaque material is a kind of very thin thickness flaky material.
Advantage of the present invention and beneficial effect are:
1. these many probe fluorescence sensing devices, be isolated into two or more intervals with the opaque sheeting of a slice with LED light source and excite respectively different fluorescent materials, thereby realize with the detection of single light source to a plurality of sensing points or many kinds of substance.
2. this many probe fluorescence sensing devices, simple for structure, size is little, and is reasonable in design, and energy consumption is little, and cost is low.
Description of 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 utility model is described in further detail, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model 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 the light distribution in this spread angle range is evenly approximate, be isolated into the interval that equates or do not wait, two of left and right by light source division board 8, 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 shines 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 that detects by the first photodetector 6 and fluorescence and the second photodetector 16 can detect concentration or other physics or the chemical characteristic that acts 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, the utility model device can be realized realizing the physics of two kinds of different materials or the detection of chemical property with single excitation source.Same principle, can adopt a plurality of light source division boards that LED light source 10 is isolated into plural interval, realizes with physics or the detection of chemical property or the Multi-point detection of same material of single excitation source realization to two or more different materials.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 needs the first fluorescence sensing chip 2 and the second fluorescence sensing chip 12 are sent is also opaque, to prevent influencing each other between two transducing signals.
Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the left view of 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 a plurality of 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, has larger advantage.
Claims (4)
1. the fluorescence sensing device of probe more than a kind, 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 that produces in the first detection interval and the second detection interval does not produce and influences each other.
2. a kind of many probe fluorescence sensing devices described according to right 1, it is characterized in that: the first fluorescence sensing chip and the second fluorescence sensing chip can adopt identical excitation source.
3. a kind of many probe fluorescence sensing devices described according to right 1, it is characterized in that: described the first fluorescence sensing chip and described the first photodetector have identical spectral range, and the second fluorescence sensing chip and described the second photodetector have identical spectral range.
4. a kind of many probe fluorescence sensing devices described according to right 1 is characterized in that: described light source division board is a kind of to described LED light source and the opaque sheeting of fluorescence that described the first fluorescence sensing chip and the second fluorescence sensing chip are produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202242754U CN203287314U (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescent sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202242754U CN203287314U (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescent sensing device |
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| CN203287314U true CN203287314U (en) | 2013-11-13 |
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| CN2013202242754U Expired - Fee Related CN203287314U (en) | 2013-04-28 | 2013-04-28 | Multi-probe fluorescent sensing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868902A (en) * | 2014-04-03 | 2014-06-18 | 福州大学 | Bioluminescence detection probe |
| CN104122239A (en) * | 2013-04-28 | 2014-10-29 | 天津奇谱光电技术有限公司 | Multi-probe fluorescence sensing device |
| CN104865231A (en) * | 2015-05-25 | 2015-08-26 | 南京信息工程大学 | Multichannel optical dissolved oxygen measurement device and measurement method |
-
2013
- 2013-04-28 CN CN2013202242754U patent/CN203287314U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122239A (en) * | 2013-04-28 | 2014-10-29 | 天津奇谱光电技术有限公司 | Multi-probe fluorescence sensing device |
| CN103868902A (en) * | 2014-04-03 | 2014-06-18 | 福州大学 | Bioluminescence detection probe |
| CN104865231A (en) * | 2015-05-25 | 2015-08-26 | 南京信息工程大学 | Multichannel optical dissolved oxygen measurement device and measurement method |
| CN104865231B (en) * | 2015-05-25 | 2017-07-28 | 南京信息工程大学 | A kind of Multi-channel optical dissolved oxygen sensing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20160428 |