CN202794019U - Dual-optical-path measuring device in on-line automatic monitoring system for mercury in water - Google Patents
Dual-optical-path measuring device in on-line automatic monitoring system for mercury in water Download PDFInfo
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- CN202794019U CN202794019U CN 201220332307 CN201220332307U CN202794019U CN 202794019 U CN202794019 U CN 202794019U CN 201220332307 CN201220332307 CN 201220332307 CN 201220332307 U CN201220332307 U CN 201220332307U CN 202794019 U CN202794019 U CN 202794019U
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Abstract
The utility model relates to a dual-optical-path measuring device in an on-line automatic monitoring system for mercury in water. The dual-optical-path measuring device comprises a mercury lamp light-shading housing (1), a mercury lamp light-shading cover (2), a mercury lamp (3), a pipeline fixed base (4), a plane convex lens (5), an air inlet (6), a porose vent pipe (7), an air outlet (8), a pipeline fixed base (9), a plane convex lens (10), a light filter (11), a fastening piece (12), a selenium photocell (13), a selenium photocell fixed base (14), a selenium photocell fixed base (15), a selenium photocell (16), a light filter (17), a fastening piece (18), a plane convex lens (19), a bottom plate (20), an imperforate reference pipe (21) and a plane convex lens (22). According to the dual-optical-path measuring device provided by the utility model, a reference pipeline is additionally arranged, and the influence of light fluctuation on measurement can be effectively eliminated.
Description
Technical field
The utility model relates to field of environment protection water quality online auto monitoring system, relates in particular to the determinator in a kind of water quality mercury online auto monitoring system
Background technology
Because the harmfulness of heavy metal pollution is set up the heavy metal pollution prewarning system Real Time Monitoring is carried out in heavy metal pollution, becomes day by day urgent, in recent years the demand of heavy metal on-line monitoring instrument is also manifested day by day.The quantity that heavy metal on-line monitoring instrument is installed at home is few, one is because the at present main dependence on import and expensive of heavy metal on-line monitoring instrument, that the user thinks all that in use domestic instrument is not handy on the other hand, it is too slow and accuracy of measurement is not high wherein to show the most distinct issues and be exactly measuring speed, simultaneously domestic heavy metal on-line monitoring instrument kind is more single, technology and quality with compare abroad that also there is a big difference.
The caused disease of heavy metal poisoning often has generation, and mercury is a kind of common elements in the heavy metal, and total mercury refers to the content of total mercury in the 1L water.If Hg content is higher in the water, drunk then and can accumulate in vivo by the people, when long-term drinking will cause the generation of some diseases, therefore very important to the monitoring of total mercury.
The utility model provides the double light path determinator in a kind of water quality mercury online auto monitoring system, and this device has not only improved sensitivity, the accuracy and reliability of determinator, and has effectively eliminated light beats to measuring the impact that produces.
Summary of the invention
The utility model is for the not high defective of degree of accuracy, sensitivity and reliability of determinator in the mercury online auto monitoring system in the prior art, a kind of double light path determinator is provided, improve sensitivity, the accuracy and reliability of determinator, and effectively eliminated light beats to measuring the impact that produces.
Double light path determinator in the water quality mercury online auto monitoring system is characterized in that: comprising: mercury lamp lightshade cover 1, mercury lamp lucifuge lid 2, mercury lamp 3, the first pipeline holders 4, the first plano-convex lenss 5, air intake opening 6, porose snorkel 7, gas outlet 8, the second pipeline holder 9, saturating 10, the first optical filters of the second plano-convex 11, the first securing members 12, the first selenium cell 13, the first selenium cell holder 14, the second selenium cell holders 15, the second selenium cells 16, the second optical filter 17, the second securing member 18, the three plano-convex lenss 19, base plate 20, atresia reference pipe 21, the Siping City's convex lens 22; Described mercury lamp lightshade cover 1 is fixed on the right-hand member of described base plate 20, the right-hand member of described base plate 20 is designed with a groove, described mercury lamp 3 is vertically put into described mercury lamp lightshade cover 1, and insert in the groove of described base plate 20 right-hand members, described mercury lamp lucifuge lid 2 covers on mercury lamp and fixes with described mercury lamp lightshade cover 1; The bottom of described the first pipeline holder 4 is fixed on the described base plate 20, the right-hand member of described the first pipeline holder 4 and described mercury lamp lightshade cover 1 fix, described mercury lamp lightshade cover 1 is designed with the first through hole c and fourth hole f with described the first pipeline holder 4 contacted partial design the first circular hole a and the second circular hole b being arranged on described the first pipeline holder 4; Described the first plano-convex lens 5 is installed in the first through hole c of described the first pipeline holder 4; The right-hand member of described porose snorkel 7 stretches in the first through hole c of described the first pipeline holder 4 and is tightly connected by O type circle with described the first plano-convex lens 5, and the convex surface of described the first plano-convex lens 5 is towards described porose snorkel 7; Described porose snorkel 7 is designed with described air intake opening 6 and described gas outlet 8; The bottom of described the second pipeline holder 9 is fixed on the base plate 20, and described the second pipeline holder 9 is designed with the second through hole d and third through-hole e; Described the second plano-convex lens 10 is installed in the second through hole d of described the second pipeline holder 9, the left end of described porose snorkel 7 stretches in the second through hole d of described the second pipeline holder 9 and is tightly connected by O type circle with described the second plano-convex lens 10, and the convex surface of described the second plano-convex lens 10 is towards described porose snorkel 7; Described the first optical filter 11 sticks on described the first selenium cell 13, described the first selenium cell 13 is installed on described the first selenium cell holder 14, described the first selenium cell holder 14 is installed on described the first securing member 12, described the first securing member 12 is threaded connection with described the second pipeline holder 9, screws the first securing member 12 the second plano-convex lens 10, porose snorkel 7, the first plano-convex lens 5 are tightly connected; Described Siping City convex lens 22 are installed in the fourth hole f of described the first pipeline holder 4, the right-hand member of described atresia reference pipe 21 stretches in the fourth hole f of described the first pipeline holder 4 and is tightly connected by O type circle with described Siping City convex lens 22, and the convex surface of described Siping City convex lens 22 is towards described atresia reference pipe 21; Described the 3rd plano-convex lens 19 is installed in the third through-hole e of described the second pipeline holder 9, the left end of described atresia reference pipe 21 stretches in the third through-hole e of described the second pipeline holder 9 and is tightly connected with described the 3rd plano-convex lens 19, and the convex surface of described the 3rd plano-convex lens 19 is towards described atresia reference pipe 21; Described the second optical filter 17 sticks on described the second selenium cell 16, described the second selenium cell 16 is installed on described the second selenium cell holder 15, described the second selenium cell holder 15 is installed on described the second securing member 18, described the second securing member 18 is threaded connection with described the second pipeline holder 9, screws the second securing member 18 the 3rd plano-convex lens 19, atresia reference pipe 21, Siping City's convex lens 22 are tightly connected.
As preferably: the area of the first circular hole a on the described mercury lamp lightshade cover 1 is the same with the area that the selenium cell light reception element divides with the area of the second circular hole b.
As preferably: the first through hole c and fourth hole f on described the first pipeline holder 4 are designed to stepped appearance, the diameter of described the first through hole c left side is greater than the diameter of described the first through hole c right side, and the diameter of described the first through hole c left side equals the diameter of the first plano-convex lens 5; The diameter of described fourth hole f left side is greater than the diameter of described fourth hole f right side, and the diameter of described fourth hole f left side equals the diameter of Siping City's convex lens 22.
As preferably: described the first through hole c, the first plano-convex lens 5, porose snorkel 7, the second through hole d, the second plano-convex lens 10, the first selenium cell 13 are coaxial with described the second circular hole b.
As preferably: described the first plano-convex lens 5 and the distance of the second circular hole b of mercury lamp lightshade cover 1 equal the back of the body focal length of the first plano-convex lens 5; The distance of the first circular hole a of described Siping City convex lens 22 and mercury lamp lightshade cover 1 equals the back of the body focal length of Siping City's convex lens 22.
As preferably: the second through hole d and third through-hole e on described the second pipeline holder 9 are designed to stepped appearance, the diameter of described the second through hole d right side equals the diameter of the second plano-convex lens 10, and the diameter of described the second through hole d left side is greater than the diameter of the second plano-convex lens 10; The diameter of described third through-hole e right side equals the diameter of the 3rd plano-convex lens 19, and the diameter of described third through-hole e left side is greater than the diameter of the 3rd plano-convex lens 19.
As preferably: described the first selenium cell 13 and the distance of described the second plano-convex lens 10 equal the back of the body focal length of the second plano-convex lens 10; The distance of described the second selenium cell 16 and described the 3rd plano-convex lens 19 equals the back of the body focal length of described the 3rd plano-convex lens 19.
As preferably: described fourth hole f, Siping City's convex lens 22, atresia reference pipe 21, third through-hole e, the 3rd plano-convex lens 19, the second selenium cell 16 are coaxial with described the first circular hole a.
As preferably: the outer tube wall degree of described porose snorkel 7 and atresia reference pipe 21 has one deck fluorine.
Description of drawings
Figure 1 shows that double light path assay device structures figure
Figure 2 shows that double light path determinator index path
Embodiment
Figure 1 shows that double light path assay device structures figure, comprising: mercury lamp lightshade cover 1, mercury lamp lucifuge lid 2, mercury lamp 3, the first pipeline holders 4, the first plano-convex lenss 5, air intake opening 6, porose snorkel 7, gas outlet 8, the second pipeline holder 9, the second plano-convex lens 10, the first optical filters 11, the first securing members 12, the first selenium cell 13, the first selenium cell holder 14, the second selenium cell holders 15, the second selenium cells 16, the second optical filter 17, the second securing member 18, the three plano-convex lenss 19, base plate 20, atresia reference pipe 21, the Siping City's convex lens 22.
Mercury lamp lightshade cover 1 is fixed on the right-hand member of base plate 20, and the right-hand member of base plate 20 is designed with a groove, and mercury lamp 3 is vertically put into mercury lamp lightshade cover 1, and inserts in the base plate 20 right-hand member grooves, and mercury lamp lucifuge lid 2 covers on mercury lamp and fixes with mercury lamp lightshade cover 1; The bottom of the first pipeline holder 4 is fixed on the base plate 20, the right-hand member of the first pipeline holder 4 and mercury lamp lightshade cover 1 fix, mercury lamp lightshade cover 1 is having the first circular hole a and the second circular hole b with the first pipeline holder 4 contacted partial design, and the area of the area of the first circular hole a and the second circular hole b is the same with the area that the selenium cell light reception element divides; Be designed with the first through hole c and fourth hole f on the first pipeline holder 4; The first through hole c and fourth hole f are designed to stepped appearance, and the diameter of the first through hole c left side is greater than the diameter of the first through hole c right side, and the diameter of the first through hole c left side equals the diameter of the first plano-convex lens 5; The diameter of fourth hole f left side is greater than the diameter of fourth hole f right side, and the diameter of fourth hole f left side equals the diameter of Siping City's convex lens 22; The first plano-convex lens 5 is installed in the first through hole c of the first pipeline holder 4, and the distance of the second circular hole b of this first plano-convex lens 5 and mercury lamp lightshade cover 1 equals the back of the body focal length of the first plano-convex lens 5; The right-hand member of porose snorkel 7 stretches in the first through hole c of the first pipeline holder 4 and is tightly connected by O type circle with the first plano-convex lens 5, and the convex surface of the first plano-convex lens 5 is towards porose snorkel 7; Porose snorkel 7 is designed with air intake opening 6 and gas outlet 8; The bottom of the second pipeline holder 9 is fixed on the base plate 20, is designed with the second through hole d and third through-hole e on the second pipeline holder 9; The second through hole d and third through-hole e are designed to stepped appearance, and the diameter of the second through hole d right side equals the diameter of the second plano-convex lens 10, and the diameter of the second through hole d left side is greater than the diameter of the second plano-convex lens 10; The diameter of third through-hole e right side equals the diameter of the 3rd plano-convex lens 19, and the diameter of third through-hole e left side is greater than the diameter of the 3rd plano-convex lens 19; The second plano-convex lens 10 is installed in the second through hole d of the second pipeline holder 9, the left end of porose snorkel 7 stretches in the second through hole d of the second pipeline holder 9 and is tightly connected by O type circle with the second plano-convex lens 10, and the convex surface of the second plano-convex lens 10 is towards porose snorkel 7; The first optical filter 11 sticks on the first selenium cell 13, the first selenium cell 13 is installed on the first selenium cell holder 14, the first selenium cell holder 14 is installed on the first securing member 12, the first securing member 12 and the second pipeline holder 9 are threaded connection, and screw the first securing member 12 the second plano-convex lens 10, porose snorkel 7, the first plano-convex lens 5 are tightly connected; The distance of the first selenium cell 13 and the second plano-convex lens 10 equals the back of the body focal length of the second plano-convex lens 10; The first through hole c, the first plano-convex lens 5, porose snorkel 7, the second through hole d, the second plano-convex lens 10, the first selenium cell 13 are coaxial with the second circular hole b; Siping City's convex lens 22 are installed in the fourth hole f of the first pipeline holder 4, and the distance of the first circular hole a of these Siping City's convex lens 22 and mercury lamp lightshade cover 1 equals the back of the body focal length of Siping City's convex lens 22; The right-hand member of atresia reference pipe 21 stretches in the fourth hole f of the first pipeline holder 4 and is tightly connected by O type circle with Siping City's convex lens 22, and the convex surface of Siping City's convex lens 22 is towards atresia reference pipe 21; The 3rd plano-convex lens 19 is installed in the third through-hole e of the second pipeline holder 9, the left end of atresia reference pipe 21 stretches in the third through-hole e of the second pipeline holder 9 and is tightly connected with the 3rd plano-convex lens 19, and the convex surface of the 3rd plano-convex lens 19 is towards atresia reference pipe 21; The second optical filter 17 sticks on the second selenium cell 16, the second selenium cell 16 is installed on the second selenium cell holder 15, the second selenium cell holder 15 is installed on the second securing member 18, the second securing member 18 and the second pipeline holder 9 are threaded connection, and screw the second securing member 18 the 3rd plano-convex lens 19, atresia reference pipe 21, Siping City's convex lens 22 are tightly connected; The distance of the second selenium cell 16 and the 3rd plano-convex lens 19 equals the back of the body focal length of the 3rd plano-convex lens 19; Fourth hole f, Siping City's convex lens 22, atresia reference pipe 21, third through-hole e, the 3rd plano-convex lens 19, the second selenium cell 16 are coaxial with the first circular hole a.The outer tube wall degree of porose snorkel 7 and atresia reference pipe 21 has one deck fluorine, is used for lucifuge.
Figure 2 shows that double light path determinator index path, concrete measuring principle is: mercury lamp 3 sends the ultraviolet light of 254nm wavelength, form two misconvergence of beams light by two circular holes above the mercury lamp lightshade cover 1, and shine the plane of the first plano-convex lens 5 and Siping City's convex lens 22, form two bundle directional lights after seeing through plano-convex lens, pass porose snorkel 7 and atresia reference pipe 21, shine on the convex surface of the second plano-convex lens 10 and the 3rd plano-convex lens 19, light beam pools directional light a bit after seeing through plano-convex lens, by regulating the position of securing member, make convergent point just in time in the position of plano-convex lens focus as far as possible, make signal stronger.Among the process of measuring, the light signal that the second selenium cell 16 receives remains unchanged, do the impact of fluctuation on measuring that reference can be removed light with this, mercury in the water sample is blown into porose snorkel 7 with the mercury vapour simple substance form from air intake opening, and blow out from the gas outlet, porose snorkel 7 can reach gas equilibrium for some time in the whole process, mercury vapour has strong assimilation effect to the ultraviolet light of 254nm, difference according to mercury concentration in the water sample, the light signal that sees through porose snorkel 7 has weakening in various degree, the light signal that the first selenium cell 13 receives also has accordingly and weakens, the optical filter of selenium cell front end can only see through the ultraviolet light of 254nm, can remove the impact of interference on measuring of visible light.The Acquisition Circuit of rear end passes through to detect the change in voltage of the first selenium cell 13 and the second selenium cell 16, and can accurately measure Hg content in the water sample by corresponding computing method.
Double light path determinator of the present utility model has the following advantages:
1. adopt the double light path determinator, improved sensitivity, the accuracy and reliability of determinator;
2. increase the reference pipeline, effectively eliminated light beats to measuring the impact that produces.
3. the selenium cell front end increases optical filter, and the impact of filtering visible light on measuring improves measuring accuracy.
4. securing member and lenticular spacing are similar to the optical zoom function of camera from adjusting, and can ensure that the light signal that is transmitted on the selenium cell is the strongest.
Embodiment disclosed herein is exemplary, and it only is for explanation that the utility model is made an explanation, and is not to restriction of the present utility model, and the improvement that those skilled in the art will envision that and expansion are included within the protection domain of the present utility model.
Claims (9)
1. the double light path determinator in the water quality mercury online auto monitoring system, it is characterized in that: comprising: mercury lamp lightshade cover (1), mercury lamp lucifuge lid (2), mercury lamp (3), the first pipeline holder (4), the first plano-convex lens (5), air intake opening (6), porose snorkel (7), gas outlet (8), the second pipeline holder (9), the second plano-convex lens (10), the first optical filter (11), the first securing member (12), the first selenium cell (13), the first selenium cell holder (14), the second selenium cell holder (15), the second selenium cell (16), the second optical filter (17), the second securing member (18), the 3rd plano-convex lens (19), base plate (20), atresia reference pipe (21), Siping City's convex lens (22); Described mercury lamp lightshade cover (1) is fixed on the right-hand member of described base plate (20), the right-hand member of described base plate (20) is designed with a groove, described mercury lamp (3) is vertically put into described mercury lamp lightshade cover (1), and insert in the groove of described base plate (20) right-hand member, described mercury lamp lucifuge lid (2) covers on mercury lamp and fixes with described mercury lamp lightshade cover (1); The bottom of described the first pipeline holder (4) is fixed on the described base plate (20), the right-hand member of described the first pipeline holder (4) and described mercury lamp lightshade cover (1) fix, described mercury lamp lightshade cover (1) is designed with the first through hole (c) and fourth hole (f) with the contacted partial design of described the first pipeline holder (4) the first circular hole (a) and the second circular hole (b) being arranged on described the first pipeline holder (4); Described the first plano-convex lens (5) is installed in first through hole (c) of described the first pipeline holder (4); The right-hand member of described porose snorkel (7) stretches in first through hole (c) of described the first pipeline holder (4) and is tightly connected by O type circle with described the first plano-convex lens (5), and the convex surface of described the first plano-convex lens (5) is towards described porose snorkel (7); Described porose snorkel (7) is designed with described air intake opening (6) and described gas outlet (8); The bottom of described the second pipeline holder (9) is fixed on the base plate (20), and described the second pipeline holder (9) is designed with the second through hole (d) and third through-hole (e); Described the second plano-convex lens (10) is installed in second through hole (d) of described the second pipeline holder (9), the left end of described porose snorkel (7) stretches in second through hole (d) of described the second pipeline holder (9) and is tightly connected by O type circle with described the second plano-convex lens (10), and the convex surface of described the second plano-convex lens (10) is towards described porose snorkel (7); Described the first optical filter (11) sticks on described the first selenium cell (13), described the first selenium cell (13) is installed on described the first selenium cell holder (14), described the first selenium cell holder (14) is installed on described the first securing member (12), described the first securing member (12) is threaded connection with described the second pipeline holder (9), screws the first securing member (12) the second plano-convex lens (10), porose snorkel (7), the first plano-convex lens (5) are tightly connected; Described Siping City convex lens (22) are installed in the fourth hole (f) of described the first pipeline holder (4), the right-hand member of described atresia reference pipe (21) stretches in the fourth hole (f) of described the first pipeline holder (4) and is tightly connected by O type circle with described Siping City convex lens (22), and the convex surface of described Siping City convex lens (22) is towards described atresia reference pipe (21); Described the 3rd plano-convex lens (19) is installed in the third through-hole (e) of described the second pipeline holder (9), the left end of described atresia reference pipe (21) stretches in the third through-hole (e) of described the second pipeline holder (9) and is tightly connected with described the 3rd plano-convex lens (19), and the convex surface of described the 3rd plano-convex lens (19) is towards described atresia reference pipe (21); Described the second optical filter (17) sticks on described the second selenium cell (16), described the second selenium cell (16) is installed on described the second selenium cell holder (15), described the second selenium cell holder (15) is installed on described the second securing member (18), described the second securing member (18) is threaded connection with described the second pipeline holder (9), screws the second securing member (18) and makes the 3rd plano-convex lens (19), atresia reference pipe (21), Siping City's convex lens (22) are tightly connected.
2. the double light path determinator in the described water quality mercury online auto monitoring system according to claim 1, it is characterized in that: the area of the first circular hole (a) on the described mercury lamp lightshade cover (1) is the same with the area that the selenium cell light reception element divides with the area of the second circular hole (b).
3. the double light path determinator in the described water quality mercury online auto monitoring system according to claim 1, it is characterized in that: the first through hole (c) and fourth hole (f) on described the first pipeline holder (4) are designed to stepped appearance, the diameter of described the first through hole (c) left side is greater than the diameter of described the first through hole (c) right side, and the diameter of described the first through hole (c) left side equals the diameter of the first plano-convex lens (5); The diameter of described fourth hole (f) left side is greater than the diameter of described fourth hole (f) right side, and described fourth hole (f) diameter of left side equals the diameter of Siping City's convex lens (22).
4. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1 is characterized in that: described the first through hole (c), the first plano-convex lens (5), porose snorkel (7), the second through hole (d), the second plano-convex lens (10), the first selenium cell (13) are coaxial with described the second circular hole (b).
5. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1 is characterized in that: described the first plano-convex lens (5) and the distance of second circular hole (b) of mercury lamp lightshade cover (1) equal the back of the body focal length of the first plano-convex lens (5); The distance of first circular hole (a) of described Siping City convex lens (22) and mercury lamp lightshade cover (1) equals the back of the body focal length of Siping City's convex lens (22).
6. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1, it is characterized in that: the second through hole (d) and third through-hole (e) on described the second pipeline holder (9) are designed to stepped appearance, the diameter of described the second through hole (d) right side equals the diameter of the second plano-convex lens (10), and the diameter of described the second through hole (d) left side is greater than the diameter of the second plano-convex lens (10); The diameter of described third through-hole (e) right side equals the diameter of the 3rd plano-convex lens (19), and the diameter of described third through-hole (e) left side is greater than the diameter of the 3rd plano-convex lens (19).
7. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1 is characterized in that: described the first selenium cell (13) and the distance of described the second plano-convex lens (10) equal the back of the body focal length of the second plano-convex lens (10); The distance of described the second selenium cell (16) and described the 3rd plano-convex lens (19) equals the back of the body focal length of described the 3rd plano-convex lens (19).
8. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1 is characterized in that: described fourth hole (f), Siping City's convex lens (22), atresia reference pipe (21), third through-hole (e), the 3rd plano-convex lens (19), the second selenium cell (16) are coaxial with described the first circular hole (a).
9. the double light path determinator in the water quality mercury online auto monitoring system according to claim 1, it is characterized in that: the outer tube wall degree of described porose snorkel (7) and atresia reference pipe (21) has one deck fluorine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332307 CN202794019U (en) | 2012-07-11 | 2012-07-11 | Dual-optical-path measuring device in on-line automatic monitoring system for mercury in water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332307 CN202794019U (en) | 2012-07-11 | 2012-07-11 | Dual-optical-path measuring device in on-line automatic monitoring system for mercury in water |
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| CN202794019U true CN202794019U (en) | 2013-03-13 |
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| CN 201220332307 Expired - Fee Related CN202794019U (en) | 2012-07-11 | 2012-07-11 | Dual-optical-path measuring device in on-line automatic monitoring system for mercury in water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297157A (en) * | 2014-10-27 | 2015-01-21 | 合肥卓越分析仪器有限责任公司 | Organic solution absorption spectrum detection equipment |
| CN107917905A (en) * | 2017-12-29 | 2018-04-17 | 山东师范大学 | Ratio-type photometric analysis device and its detection method based on intelligent terminal |
-
2012
- 2012-07-11 CN CN 201220332307 patent/CN202794019U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297157A (en) * | 2014-10-27 | 2015-01-21 | 合肥卓越分析仪器有限责任公司 | Organic solution absorption spectrum detection equipment |
| CN107917905A (en) * | 2017-12-29 | 2018-04-17 | 山东师范大学 | Ratio-type photometric analysis device and its detection method based on intelligent terminal |
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Address after: 510730 Guangzhou economic and Technological Development Zone, Guangdong City, South Road, No. three, No. 12 Patentee after: Yiwen Environmental Science Technology Co., Ltd. Address before: 3 building, B building, No. 885 Shenzhou Road, Guangzhou Science City, Guangdong, Guangzhou, Luogang District 510663, China Patentee before: Yiwen Environmental Science Technology Co., Ltd. |
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Addressee: Guangzhou Yiwen Environmental Technology Co.,Ltd. The person in charge Document name: Notice of termination of patent right |
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Granted publication date: 20130313 Termination date: 20200711 |