CN207318352U - Dry chemistry reagent light reflectivity detection device - Google Patents
Dry chemistry reagent light reflectivity detection device Download PDFInfo
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- CN207318352U CN207318352U CN201721482421.8U CN201721482421U CN207318352U CN 207318352 U CN207318352 U CN 207318352U CN 201721482421 U CN201721482421 U CN 201721482421U CN 207318352 U CN207318352 U CN 207318352U
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- light
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- dry chemistry
- circuit board
- chemistry reagent
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Abstract
A kind of dry chemistry reagent light reflectivity detection device, it includes circuit board（1）, it is characterized in that the circuit board（1）On photosensitive sensor is installed（2）And LED seat（3）, and photosensitive sensor（2）It is sleeved on lamp holder（3）Be connected the light conducting cylinder in face with circuit board（4）In, photosensitive sensor（2）On add can reduce reagent background color interference diaphragm；Lamp holder（3）To be equipped with taper raised at another side center（5）, taper protrusion（5）Periphery is equipped with mounted LED lamp（6）Groove（7）, LED light（6）And photosensitive sensor（2）And circuit board（1）Electrical connection, it is raised in taper（5）Center be equipped with reflection dry chemistry reagent reflected light daylighting aperture（8）；In LED seat（3）Light-guiding shade is installed in one side away from circuit board（9）, light-guiding shade（9）Center be provided with light hole（10）.The utility model is simple in structure, and intensity of illumination is big, and light path is simple, and photosensitive sensor, strong antijamming capability are directly entered after reflection.
Description
Technical field
It the utility model is related to a kind of chemical reagent detection technique, the dry chemistry test in especially a kind of medicine biochemistry detection
The light reflecting device of agent detection, specifically a kind of dry chemistry reagent light reflectivity detection device.
Background technology
At present, dry chemistry reagent reaction detection needs to test the reflectivity of multiple wavelength, and common method uses LED light source
+ integrating sphere is realized, low there are illuminance, and the optical source wavelength that is easily subject to ambient light interference and can select is less to be lacked
Point, therefore a device of urgent need design can select the light of up to 6 wavelength, and illuminance intensity greatly enhances, and can reduce
The reflection detection device of ambient light interference.
Utility model content
The purpose of this utility model is to be mapped to the light on dry chemistry reagent surface for the illumination of existing reflectivity detection device
Irradiation level is weak, causes amplifying circuit below easily to receive ambient light or noise jamming, influences signal processing and analysis, and finally
The problem of influencing testing result, design a kind of dry chemistry reagent light reflectivity that can be improved illumination and be mapped to the irradiation level on reagent surface
Detection device.
The technical solution of the utility model is：
A kind of dry chemistry reagent light reflectivity detection device, it includes circuit board 1, it is characterized in that on the circuit board 1
Photosensitive sensor 2 and LED seat 3 be installed, and photosensitive sensor 2 is sleeved on lamp holder 3 and is connected with circuit board the light conducting cylinder 4 in face
In, the diaphragm that can reduce the interference of reagent background color is added on photosensitive sensor 2；It is raised that the another side center of lamp holder 3 is equipped with taper
5,5 peripheries of taper protrusion are equipped with the groove 7 of mounted LED lamp 6, and LED light 6 and photosensitive sensor 2 are electrically connected with circuit board 1,
The daylighting aperture 8 of reflection dry chemistry reagent reflected light is equipped with the center of taper protrusion 5；In one of LED seat 3 away from circuit board
Light-guiding shade 9 is installed, the center of light-guiding shade 9 is provided with light hole 10, and the light for the setting wavelength that LED light 6 is sent passes through light extraction on face
Hole 10 is irradiated on dry chemistry reagent, enters the daylighting aperture 8 at raised 5 centers of taper after reflection from the center of light hole 10 again,
Electric signal is converted into photosensitive sensor 2 through light conducting cylinder 4 again and is sent into circuit board 1, then message handler is sent into by circuit board 1 and is obtained
To testing result.
The inner side of the light-guiding shade 9 is in taper hole structure, is surrounded by what is matched with taper protrusion in taper hole structure
Groove, the groove form the space of a fixed LED light with the groove in taper protrusion；Set in the outside of light-guiding shade 9 and one
Annular projection 11, to ensure that the length of the groove on the inside of light-guiding shade matches with LED light length, while reduces the entirety of light-guiding shade
Thickness, economizes on material.
The periphery of the light conducting cylinder 4 is in clover shape, and the gland 12 of shape matching, pressure are set with light conducting cylinder 4
Lid 12 is equipped with claw 13 close to the one side of LED seat 3, and claw 13 is used for the lamp base for fixing LED light, prevents lamp base from using process
Middle loosening.
The LED light 6 is arranged in pairs, and the wavelength that each pair LED light 6 is sent is identical, they are with identical angular illumination
Onto dry chemistry reagent, light after reflection is vertically into the daylighting aperture 8 in taper protrusion 5, finally by photosensitive sensor
Receive.
The quantity of the LED light 6 is at least 2 pairs, preferably 4 pairs, most preferably 6 pairs.
The LED light 6 is standing wave length or becomes wavelength light bulb.
The cone-apex angle of the taper protrusion 5 of the LED seat 3 is 120 degree；Each LED light is shone with 30 degree of incidence angle
It is mapped to dry chemistry reagent surface.
The beneficial effects of the utility model：
1. the utility model because employ in pairs LED30 degree angle to penetrating irradiation reagent strip so that illuminance is non-
Chang Gao, performance is more stable, more outstanding in terms of sensitivity and homogeneity of product.
2. photosensitive use, which receives directly over reagent strip and increases diaphragm, filters out external disturbance light.
3. the utility model use 12 totally 6 couples of LED be irradiated to dry chemistry reagent block, wave-length coverage to penetrating with 30 degree of angles
Width, choice is big, can meet most of reagent strip or block detection needs.
4. the utility model employs photosensitive vertical reception, diaphragm, good in anti-interference performance are placed before photosensitive.
5. by circuits improvement, every group of LED light of the utility model can send different wavelength, it can be achieved that transmitting light wave
The modulation of light, greatly simplifies structure, and need to only install a pair of of LED light can meet the needs of all wavelengths reflection.
6. the utility model is simple in structure, intensity of illumination is big, and light path is simple, and photosensitive sensor is directly entered after reflection, resists
Interference performance is strong.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model.
Fig. 2 is the utility model assembling structure front view.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the A-A sectional views of Fig. 2.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figs 1-4.
A kind of dry chemistry reagent light reflectivity detection device, it includes circuit board 1, circuit board 1 can use routine techniques into
Row design, mainly controls the break-make of LED light and the collection and transmission of reflected light signal, it passes through communication cable and sampling analysis
Host is connected, and sampling analysis host is analyzed according to the signal of collection using related existing software, draws inspection result.It is described
Circuit board 1 on photosensitive sensor 2 and LED seat 3 are installed, and photosensitive sensor 2 is sleeved on LED seat 3 and circuit board phase
Even in the light conducting cylinder 4 in face, light conducting cylinder 4 is fixed by screws on circuit board 1 fixation so as to fulfill LED seat 3 and circuit board 1
Connection, photosensitive sensor, which is sleeved in light conducting cylinder, to prevent ambient from disturbing, and ensure the accuracy of reflected signal.Light sensor
The diaphragm of reagent background color interference can be reduced by being added on device 2；The another side center of lamp holder 3 is equipped with taper protrusion 5, taper protrusion 5
7,12 one group of LED light two of groove that periphery is equipped with 12 mounted LED lamps 6 are symmetrically installed, the wavelength one that every group of LED light is sent
Cause, and illumination angle is 30 degree, that is to say, that the cone-apex angle of taper protrusion is 120 degree.LED light 6 and photosensitive sensor 2 are and circuit
Plate 1 is electrically connected, and the daylighting aperture 8 of reflection dry chemistry reagent reflected light is equipped with the center of taper protrusion 5；It is remote in LED seat 3
Light-guiding shade 9 is installed from clamping in the one side of circuit board, the center of light-guiding shade 9 is provided with light hole 10（Fig. 4）, what LED light 6 was sent
The light of wavelength is set to be irradiated to by light hole 10 on dry chemistry reagent, it is convex from the center of light hole 10 into taper again after reflection
The daylighting aperture 8 at 5 centers is played, then is converted into electric signal into photosensitive sensor 2 after diaphragm filters through light conducting cylinder 4 and is sent into electricity
Road plate 1, then message handler is sent into by circuit board 1 and obtains testing result.As shown in Figure 1.The inner side of light-guiding shade 9 is in taper hole knot
Structure, in the groove 14 that matches with taper protrusion of being surrounded by of taper hole structure, the groove 14 and the groove type in taper protrusion
Into the space of a fixed LED light；Set in the outside of light-guiding shade 9 and an annular projection 11, it is recessed on the inside of light-guiding shade to ensure
The length of groove matches with LED light length, while reduces the integral thickness of light-guiding shade, economizes on material.Outside the light conducting cylinder 4
Enclose and may be designed to clover shape, be set with light conducting cylinder 4 shape matching gland 12, gland 12 close to LED seat 3 one
Face is equipped with claw 13, and claw 13 is used for the lamp base for fixing LED light, prevents from loosening during lamp base use.The LED light 6
It is arranged in pairs, the wavelength that each pair LED light 6 is sent is identical, they are with identical angular illumination to dry chemistry reagent, after reflection
Light vertically into the daylighting aperture 8 in taper protrusion 5, finally received by photosensitive sensor.As shown in Figure 2,3.Specifically
During implementation, the quantity of the LED light 6 is at least 2 pairs, preferably 4 pairs, most preferably 6 pairs.Pass through being set when changing to LED circuit
Meter, and use the LED light 6 of wavelengthtunable, then each detection device only needs a pair of of LED light to meet the requirements, and structure is more simple
It is single, arrived and the corresponding wavelength of dry chemistry reagent in use, need to only adjust LED emission wavelengths.
The utility model is not directed to partly same as the prior art or can be realized using the prior art.
Claims (9)
1. a kind of dry chemistry reagent light reflectivity detection device, it includes circuit board（1）, it is characterized in that the circuit board（1）
On photosensitive sensor is installed（2）And LED seat（3）, and photosensitive sensor（2）It is sleeved on lamp holder（3）Be connected face with circuit board
Light conducting cylinder（4）In, photosensitive sensor（2）On add can reduce reagent background color interference diaphragm；Lamp holder（3）Another side in
It is raised that the heart is equipped with taper（5）, taper protrusion（5）Periphery is equipped with mounted LED lamp（6）Groove（7）, LED light（6）And light sensor
Device（2）And circuit board（1）Electrical connection, it is raised in taper（5）Center be equipped with reflection dry chemistry reagent reflected light daylighting
Aperture（8）；In LED seat（3）Light-guiding shade is installed in one side away from circuit board（9）, light-guiding shade（9）Center be provided with light extraction
Hole（10）, LED light（6）The light of the setting wavelength sent passes through light hole（10）Be irradiated on dry chemistry reagent, after reflection again from
Light hole（10）To enter taper raised at center（5）The daylighting aperture at center（8）, then through light conducting cylinder（4）Into photosensitive sensor
（2）It is converted into electric signal and is sent into circuit board（1）, then by circuit board（1）It is sent into message handler and obtains testing result.
2. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the light-guiding shade（9）'s
Inner side is in taper hole structure, in the groove that matches with taper protrusion of being surrounded by of taper hole structure, the groove with taper protrusion
Groove formed a fixed LED light space；In light-guiding shade（9）Outside set and an annular projection（11）, to ensure to lead
The length of groove on the inside of light shield matches with LED light length, while reduces the integral thickness of light-guiding shade, economizes on material.
3. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the light conducting cylinder（4）'s
Periphery is in clover shape, in light conducting cylinder（4）On be set with shape matching gland（12）, gland（12）Close to LED seat（3）
One side be equipped with claw（13）, claw（13）For fixing the lamp base of LED light, prevent from loosening during lamp base use.
4. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the LED light（6）Into
To setting, each pair LED light（6）The wavelength sent is identical, they are with identical angular illumination to dry chemistry reagent, after reflection
Light it is raised vertically into taper（5）On daylighting aperture（8）In, finally received by photosensitive sensor.
5. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the LED light（6）'s
Quantity is at least 2 pairs.
6. dry chemistry reagent light reflectivity detection device according to claim 5, it is characterized in that the LED light（6）'s
Quantity is 4 pairs.
7. dry chemistry reagent light reflectivity detection device according to claim 5, it is characterized in that the LED light（6）'s
Quantity is 6 pairs.
8. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the LED light（6）For
Standing wave is long or becomes wavelength light bulb.
9. dry chemistry reagent light reflectivity detection device according to claim 1, it is characterized in that the LED seat（3）
Taper it is raised（5）Cone-apex angle be 120 degree；Each LED light is irradiated to dry chemistry reagent surface with 30 degree of incidence angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482421.8U CN207318352U (en) | 2017-11-06 | 2017-11-06 | Dry chemistry reagent light reflectivity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482421.8U CN207318352U (en) | 2017-11-06 | 2017-11-06 | Dry chemistry reagent light reflectivity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318352U true CN207318352U (en) | 2018-05-04 |
Family
ID=62401337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721482421.8U Active CN207318352U (en) | 2017-11-06 | 2017-11-06 | Dry chemistry reagent light reflectivity detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607491A (en) * | 2017-11-06 | 2018-01-19 | 崔宝藏 | Dry chemistry reagent light reflectivity detection means |
| CN109100341A (en) * | 2018-08-27 | 2018-12-28 | 绿嘉图（北京）科技有限公司 | A kind of multi-functional dry type POCT equipment and detection method |
-
2017
- 2017-11-06 CN CN201721482421.8U patent/CN207318352U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607491A (en) * | 2017-11-06 | 2018-01-19 | 崔宝藏 | Dry chemistry reagent light reflectivity detection means |
| CN109100341A (en) * | 2018-08-27 | 2018-12-28 | 绿嘉图（北京）科技有限公司 | A kind of multi-functional dry type POCT equipment and detection method |
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