CN105606578B - The detection device and its detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously - Google Patents
The detection device and its detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously Download PDFInfo
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- CN105606578B CN105606578B CN201610076045.6A CN201610076045A CN105606578B CN 105606578 B CN105606578 B CN 105606578B CN 201610076045 A CN201610076045 A CN 201610076045A CN 105606578 B CN105606578 B CN 105606578B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
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Abstract
The detection device of in situ measurement water sludge interface different height dissolved oxygen while of the invention, dissolved oxygen low-light pole host has connected detection probe, detection probe can stretch out the probe for detecting dissolved oxygen, detection device further includes a detection box, detection box is placed on water sludge interface, several vertically communicated water flowing chambers are offered on detection box, and several slots for extending transversely through detection box, slot is connected to each water flowing chamber, detection device further includes several inserted sheets, probe grooves are provided on inserted sheet, the profile of probe grooves and the profile of detection probe are adapted, detection probe can be put into probe grooves fixed, inserted sheet can be inserted and secured in slot, the depth for being inserted into slot by adjusting inserted sheet, be located at the probe stretched out can in different water flowing chambers.The present invention can measure water sludge interface different height dissolved oxygen simultaneously, avoid multiplicating testing experiment, not only save the time, but also the advantages of can sometime be put the true distribution of a certain position different height dissolved oxygen amount of water sludge interface.
Description
Technical field
The present invention relates to the technical fields of dissolved oxygen amount detection device, more particularly in situ measurement water sludge interface is different high simultaneously
Spend the detection device and its detection method of dissolved oxygen.
Background technique
Dissolved oxygen low-light pole is the one-dimensional microprobe technology for being able to achieve the measurement of water sludge interface point oxyty.It is based on fluorescence
The fiber information switching sensors for quenching principle, since oxygen is the natural quencher of certain fluorescence indicators, by oxygen sensitivity
Fluorescence indicator is made the oxygen sensing film and is coupled in optical fiber end, uses high brightness LED for light source and two pole of micro photo electric
Pipe detection system determines oxygen concentration by fiber optic conduction fluorescent quenching intensity, ruthenium complex because to stir it is insensitive, not by
H2S、CO2And the characteristics such as salinity interference are the oxygen sensitive fluorescent indicators being most widely used so far.
The existing measuring method for water sludge interface dissolved oxygen is to sample the water sludge interface sample in waters to be measured to detection and hold
In device, dissolved oxygen low-light pole probe is then fixed on upper vessel portion, the fluorescence probe on control probe extends downwardly, and probe is always
It extends in water sludge interface and is measured.
This method has the disadvantage that:
1, it cannot achieve in-site detecting, need to acquire water sludge interface sample into detection container, this process is easy to cause
Water sludge interface natural environment changes, and the dissolved oxygen situation for being adopted water sludge interface is caused not to be consistent with actual conditions；
2, the dissolved oxygen feelings of a certain height in a dissolved oxygen low-light pole a certain position of probe in detecting water sludge interface can only once be controlled
Condition can only obtain the dissolved oxygen situation of water sludge interface other height of position by repeatedly measuring, but repeatedly measurement can be
There is biggish span on time, cannot reflect its truth；
3, it when carrying out the detection of water sludge interface different height dissolved oxygen, takes time and effort, detects very inconvenient.
Summary of the invention
The technical problem to be solved by the present invention for the above-mentioned state of the art is to provide a kind of in situ measurement muddy water simultaneously
The detection device and its detection method of interface different height dissolved oxygen.
The detection device of in situ measurement water sludge interface different height dissolved oxygen simultaneously, including dissolved oxygen low-light pole host, dissolved oxygen are micro-
Optrode host has connected several detection probes, and detection probe can stretch out the probe for measuring dissolved oxygen, it is characterized in that: detection device
It further include a detection box, detection box is placed on water sludge interface, and it detects and offers several vertically communicated water flowing chambers on box, and
Several slots for extending transversely through detection box, slot is connected to each water flowing chamber, and detection device further includes several inserted sheets, on inserted sheet
Probe grooves are provided with, the profile of probe grooves and the profile of detection probe are adapted, and detection probe can be put into probe grooves and fix, and insert
Piece can be inserted and secured in slot, the depth for being inserted into slot by adjusting inserted sheet, make the probe stretched out that can be located at different lead to
In water cavity.
To optimize above-mentioned technical proposal, the concrete measure taken further include:
Above-mentioned detection probe includes soft quality optical fiber and rigid optical fiber, rigid optical fiber, that is, probe, the rear end of rigid optical fiber
It is connect by soft quality optical fiber with dissolved oxygen low-light pole host.
Above-mentioned detection probe further includes probe push structure, and probe push structure includes push pipe, push column, friction
Block, sealing ring, push handle and pipe back seat, push handle are connected to push column rear end, and push column front end is protruded into push pipe
It being fixedly connected with the friction block in push pipe, the inner wall frictional fit of friction block and push pipe, pipe back seat blocks push pipe rear end,
Friction block is fixedly connected with the rear portion of probe, sealing ring be fixed on push pipe in, will push tube chamber sealed separation be ante-chamber and
Back cavity, ante-chamber are provided with logical window, and water energy enters ante-chamber from logical window, and correspondingly, probe grooves and logical window corresponding position are provided with slot
Window, when the inserted sheet of fixed test probe is fixed in slot, logical window is connected to water flowing chamber；When the external force of propulsion push handle is big
When the frictional force of friction block and push pipe, friction block sliding in push is managed extend out to probe in ante-chamber.
Above-mentioned soft quality optical fiber is fixedly connected with push handle.
The side of above-mentioned inserted sheet is provided with fixing groove, and it is convex to be provided with several fixations in slot, when in inserted sheet insertion slot
When, fixing groove be caught in it is fixed it is convex in, make inserted sheet and detection box secure fit, inserted sheet by from the convex cooperation of different fixations to adjust
The depth of section insertion slot.
When above-mentioned detection probe is put into probe grooves, pipe back seat and probe grooves rear end clamping matching.
Above-mentioned slot arow is laid on detection box.
The detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously, comprising the following steps:
Step 1: assembling detection device: selecting several detection probes as needed, each detection probe is respectively clamped into accordingly
In the probe grooves of inserted sheet, it is ensured that detection probe and inserted sheet are realized and positioned, and inserted sheet are then inserted into slot, according to tested water sludge interface
Height it is different, select the slot of different height, further according to the horizontal position of tested water sludge interface, inserted sheet be set and is inserted into slot
Depth；
Step 2: the probe of each detection probe to be pushed out to the ante-chamber of push pipe；
Step 3: will test in box sinking to water sludge interface, water injects water flowing chamber and pushes the ante-chamber of pipe, and each probe is adopted
Dissolved oxygen data in catchmenting, and dissolved oxygen low-light pole host is sent data to, dissolved oxygen low-light pole host carries out at analysis data
After reason, display.
In step 1, the method for the depth that setting inserted sheet is inserted into slot is: the front end of inserted sheet is pushed into slot, it is lasting to push
Inserted sheet, until fixing groove be caught in the fixation at appropriate depth it is convex when, stop push inserted sheet.
Further include step 4: after the completion of detection, will test box and proposed from water body, takes out inserted sheet；The method for taking out inserted sheet
It is: pulls back push handle, slide backward friction block, when friction block slides to push pipe rear end, probe is retracted to push pipe
Back cavity in, continue to pull back push handle, friction block, which resists pipe back seat, moves back entire inserted sheet, and fixing groove is moved back from fixed convex
Out, inserted sheet is extracted.
Compared with prior art, detection device of the invention and its detection method have the advantage that
1, the present invention has multiple detection probes, these detection probes work at the same time, to reach multiple probes while examine
The effect for surveying same place water sludge interface different height dissolved oxygen, avoids multiplicating testing experiment, not only saves the time, but also can obtain
The sometime true distribution of water sludge interface different height dissolved oxygen amount.
2, when measuring water sludge interface different height dissolved oxygen, the present invention does not need acquisition water sludge interface sample to detection container
In, but directly will test in the water body where box sinks to tested water sludge interface, avoid the natural environment near water sludge interface
It changes, fully achieves in-site detecting.
3, the detection of water sludge interface different height dissolved oxygen is once completed, it is very easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for detecting box；
Fig. 2 is the M-M cross-sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram of detection probe；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is the structural schematic diagram of inserted sheet；
Fig. 6 is the schematic diagram that detection probe is put into inserted sheet；
Fig. 7 is the schematic diagram after probe stretches out；
Fig. 8 is three inserted sheet insertion slots and the schematic diagram for detecting a right water flowing chamber different height dissolved oxygen；
Fig. 9 is the portion the A schematic enlarged-scale view of Fig. 8；
Figure 10 is three inserted sheet insertion slots and the schematic diagram for detecting the second from left water flowing chamber different height dissolved oxygen；
Figure 11 is dissolved oxygen low-light pole structural schematic block diagram.
Appended drawing reference therein are as follows: dissolved oxygen low-light pole host 1, detection probe 2, probe 21, soft quality optical fiber 22, detection box 3,
Water flowing chamber 31, slot 32 fix convex 33, inserted sheet 4, probe grooves 41, slot window 41a, fixing groove 42, probe push structure 5, push pipe
51, ante-chamber 51a, back cavity 51b, push column 52, friction block 53, sealing ring 54, push handle 55, pipe back seat 56, logical window 57.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1 to 11, the detection device of in situ measurement water sludge interface different height dissolved oxygen while of the invention, packet
Dissolved oxygen low-light pole host 1 is included, dissolved oxygen low-light pole host 1 has connected several detection probes 2, and detection probe 2 can be stretched out for detecting
The probe 21 of dissolved oxygen, it is characterized in that: detection device further includes a detection box 3, detection box 3 is placed on water sludge interface, detects box 3
On offer several vertically communicated water flowing chambers 31 and several slots 32 for extending transversely through detection box 3, slot 32 and each logical
Water cavity 31 is connected to, and detection device further includes several inserted sheets 4, and probe grooves 41, the profile of probe grooves 41 and inspection are provided on inserted sheet 4
The profile of probing head 2 is adapted, and detection probe 2 can be put into probe grooves 41 and fix, and inserted sheet 4 can be inserted and secured on slot 32
In, the depth for being inserted into slot 32 by adjusting inserted sheet 4 be located at the probe 21 stretched out can in different water flowing chambers 31.
In embodiment, detection probe 2 includes soft quality optical fiber 22 and rigid optical fiber, rigid optical fiber, that is, probe 21, hard light
Fine rear end is connect by soft quality optical fiber 22 with dissolved oxygen low-light pole host 1.
In embodiment, detection probe 2 further includes probe push structure 5, and probe push structure 5 includes push pipe 51, push
Column 52, friction block 53, sealing ring 54, push handle 55 and pipe back seat 56, push handle 55 are connected to push 52 rear end of column, push away
It send 52 front end of column to protrude into push pipe 51 to be fixedly connected with the friction block 53 in push pipe 51, friction block 53 is interior with push pipe 51
Wall friction cooperation, pipe back seat 56 block push 51 rear end of pipe, and friction block 53 is fixedly connected with the rear portion of probe 21, and sealing ring 54 is solid
It being scheduled in push pipe 51, is ante-chamber 51a and back cavity 51b by push 51 cavity sealed separation of pipe, ante-chamber 51a is provided with logical window 57,
Water energy enters ante-chamber 51a from logical window 57, and correspondingly, probe grooves 41 and logical 57 corresponding position of window are provided with slot window 41a, works as fixation
When the inserted sheet 4 of detection probe 2 is fixed in slot 32, logical window 57 is connected to water flowing chamber 31；When the external force for promoting push handle 55
When greater than the frictional force of friction block 53 and push pipe 51, friction block 53 slides in push pipe 51, and probe 21 is made to extend out to ante-chamber
In 51a.
In embodiment, soft quality optical fiber 22 is fixedly connected with push handle 55.
In embodiment, the side of inserted sheet 4 is provided with fixing groove 42, several fixations convex 33 is provided in slot 32, when inserted sheet 4
When being inserted into slot 32, fixing groove 42 is caught in fixed convex 33, makes inserted sheet 4 and detection 3 secure fit of box, inserted sheet 4 by with not
Convex 33 cooperation of same fixation is to adjust the depth for being inserted into slot 32.
In embodiment, when detection probe 2 is put into probe grooves 41, pipe back seat 56 and 41 rear end clamping matching of probe grooves.
In embodiment, 32 arow of slot is laid on detection box 3.
The detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously, comprising the following steps:
Step 1: assembling detection device: selecting several detection probes 2 as needed, each detection probe 2 is respectively clamped into phase
It answers in the probe grooves 41 of inserted sheet 4, it is ensured that detection probe 2 and inserted sheet 4 are realized and positioned, and inserted sheet 4 are then inserted into slot 32, according to quilt
The height for surveying water sludge interface is different, selects the slot 32 of different height, and further according to the horizontal position of tested water sludge interface, setting is inserted
The depth of the insertion slot 32 of piece 4；The method that the depth that inserted sheet 4 is inserted into slot 32 is arranged is: the front end of inserted sheet 4 is pushed into slot
32, persistently push inserted sheet 4, until fixing groove 42 be caught in the fixation at appropriate depth it is convex 33 when, stop push inserted sheet 4.
Step 2: the probe 21 of each detection probe 2 to be pushed out to the ante-chamber 51a of push pipe 51；
Step 3: will test in 3 sinking to water sludge interface of box, water injects water flowing chamber 31 and pushes the ante-chamber 51a of pipe 51,
Each probe 21 acquires the dissolved oxygen data in water, and sends data to dissolved oxygen low-light pole host 1,1 logarithm of dissolved oxygen low-light pole host
After being analyzed and processed, display.
Step 4: after the completion of detection, will test box 3 and propose from water body, take out inserted sheet 4；The method for taking out inserted sheet 4 is:
Push handle 55 is pulled back, friction block 53 is slided backward, when friction block 53 slides to push 51 rear end of pipe, probe 21 is retracted to
In the back cavity 51b for pushing pipe 51, continuing to pull back push handle 55, friction block 53, which resists pipe back seat 56, moves back entire inserted sheet 4,
Fixing groove 42 exits from fixation convex 33, and inserted sheet 4 is extracted.
Detection box 3 of the invention is very thin, highly be no more than 1cm, inserted sheet 4 with a thickness of 1mm or so, detection 3 energy of box
Allow to be inserted into 5-7 inserted sheet 4.
For fluorescent probe, the principle of detection water sludge interface dissolved oxygen is the detection probe 2 that the present embodiment uses: utilizing dissolved oxygen
Low-light pole host 1 issues laser, and laser is incident upon at probe 21 by soft quality optical fiber 22, and oxygen-sensitive fluorescent material is arranged in 21 front end of probe
Material, laser are mapped on oxygen-sensitive fluorescent material, feed back to dissolved oxygen low-light pole host 1 by the fluorescence that Fluorescence quenching effect generates, molten
Fluorescence signal is converted electric signal by oxygen low-light pole host 1, and compares after electric signal is demodulated with dissolved oxygen concentration variation relation,
Obtain dissolved oxygen concentration information.Oxygen-sensitive fluorescent material can be selected from existing various sensitive fluorescent substances, preferable material
For ruthenium complex, such as Ru (dpp)3Cl2Deng.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (7)
1. the detection device of in situ measurement water sludge interface different height dissolved oxygen simultaneously, including dissolved oxygen low-light pole host (1), described
Dissolved oxygen low-light pole host (1) has connected several detection probes (2), and the detection probe (2) can be stretched out for detecting dissolved oxygen
Probe (21), it is characterized in that: detection device further includes a detection box (3), the detection box (3) is placed on water sludge interface,
Several vertically communicated water flowing chambers (31) are offered on the detection box (3) and several extend transversely through detects inserting for box (3)
Slot (32), the slot (32) are connected to each water flowing chamber (31), and detection device further includes several inserted sheets (4), described
It is provided on inserted sheet (4) probe grooves (41), the profile of the probe grooves (41) and the profile of detection probe (2) are adapted, institute
The detection probe (2) stated can be put into probe grooves (41) and fix, and the inserted sheet (4) can be inserted and secured in slot (32),
It by adjusting the depth of inserted sheet (4) insertion slot (32), be located at the probe (21) stretched out can in different water flowing chambers (31)；Inspection
Probing head (2) further includes probe push structure (5), and the probe push structure (5) includes push pipe (51), push column
(52), friction block (53), sealing ring (54), push handle (55) and pipe back seat (56), push handle (55) connection
In push column (52) rear end, described push column (52) front end is protruded into push pipe (51) and manages the friction block in (51) with push
(53) it is fixedly connected, the inner wall frictional fit of the friction block (53) and push pipe (51), the pipe back seat (56) blocks
Push pipe (51) rear end, the friction block (53) are fixedly connected with the rear portion of probe (21), and the sealing ring (54) is fixed
It is ante-chamber (51a) and back cavity (51b), the ante-chamber (51a) by push pipe (51) cavity sealed separation in push pipe (51)
It being provided with logical window (57), water energy enters ante-chamber (51a) from logical window (57), correspondingly, the probe grooves (41) and logical window (57)
Corresponding position is provided with slot window (41a), when the inserted sheet (4) of fixed test probe (2) is fixed in slot (32), leads to window
(57) it is connected to water flowing chamber (31)；When the friction for promoting the external force for pushing handle (55) to be greater than friction block (53) and push pipe (51)
When power, the friction block (53) sliding in push pipe (51) extend out to probe (21) in ante-chamber (51a).
2. according to claim 1 while in situ measurement water sludge interface different height dissolved oxygen detection device, it is characterized in that:
The side of the inserted sheet (4) is provided with fixing groove (42), and it is convex (33) to be provided with several fixations in the slot (32), works as institute
When in inserted sheet (4) insertion slot (32) stated, the fixing groove (42) is caught in fixed convex (33), makes inserted sheet (4) and detection
Box (3) secure fit, inserted sheet (4) is by cooperating the depth for adjusting insertion slot (32) from different fixations convex (33).
3. according to claim 2 while in situ measurement water sludge interface different height dissolved oxygen detection device, it is characterized in that:
When the detection probe (2) is put into probe grooves (41), the pipe back seat (56) and probe grooves (41) rear end clamping matching.
4. according to claim 2 while in situ measurement water sludge interface different height dissolved oxygen detection device, it is characterized in that:
Described slot (32) arow is laid in detection box (3).
5. the detection method of the detection device of in situ measurement water sludge interface different height dissolved oxygen simultaneously as described in claim 1,
It is characterized in that: the following steps are included:
Step 1: assembling detection device: selecting as needed several detection probes (2), each detection probe (2) is respectively clamped into phase
It answers in the probe grooves (41) of inserted sheet (4), it is ensured that detection probe (2) and inserted sheet (4) are realized and positioned, and are then inserted into inserted sheet (4) and insert
Slot (32), it is different according to the height of tested water sludge interface, the slot (32) of different height is selected, further according to tested water sludge interface
The depth of slot (32) is inserted into horizontal position, setting inserted sheet (4)；
Step 2: the probe (21) of each detection probe (2) to be pushed out to the ante-chamber (51a) of push pipe (51)；
Step 3: will test in box (3) sinking to water sludge interface, water injects the ante-chamber of water flowing chamber (31) and push pipe (51)
(51a), each probe (21) acquires the dissolved oxygen data in water, and sends data to dissolved oxygen low-light pole host (1), dissolved oxygen low-light pole
After host (1) is analyzed and processed data, display.
6. the detection side of according to claim 5 while in situ measurement water sludge interface different height dissolved oxygen detection device
Method, it is characterized in that: the method that the depth of slot (32) is inserted into setting inserted sheet (4) is: the front end of inserted sheet (4) is pushed away in step 1
Enter slot (32), persistently push inserted sheet (4), until stopping pushing away when fixing groove (42) are caught in the fixation at appropriate depth convex (33)
Send inserted sheet (4).
7. the detection side of according to claim 5 while in situ measurement water sludge interface different height dissolved oxygen detection device
Method, it is characterized in that: further including step 4: after the completion of detection, will test box (3) and proposed from water body, take out inserted sheet (4)；It takes out
The method of inserted sheet (4) is: pulling back push handle (55), slides backward friction block (53), push away when friction block (53) slides to
Pipe (51) rear end is sent, probe (21) is retracted in the back cavity (51b) of push pipe (51), is continued to pull back push handle (55), be rubbed
Cleaning block (53), which resists pipe back seat (56), moves back entire inserted sheet (4), and fixing groove (42) exits at fixation convex (33), inserted sheet (4)
It is extracted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610076045.6A CN105606578B (en) | 2016-02-03 | 2016-02-03 | The detection device and its detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610076045.6A CN105606578B (en) | 2016-02-03 | 2016-02-03 | The detection device and its detection method of in situ measurement water sludge interface different height dissolved oxygen simultaneously |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887344A1 (en) * | 2005-05-27 | 2008-02-13 | Kirin Beer Kabushiki Kaisha | Method for measuring oxygen amount in hermetically sealed container and piercing device for hermetically sealed container used therefor |
| CN101566573A (en) * | 2009-03-27 | 2009-10-28 | 中国海洋大学 | Two dimensional distribution detecting apparatus for dissolving oxygen at sediment-seawater interface |
| CN102087221A (en) * | 2010-12-24 | 2011-06-08 | 湖南省水产科学研究所 | Method for rapidly determining dissolved oxygen in water |
| CN203838104U (en) * | 2013-11-20 | 2014-09-17 | 刁昱翔 | Improved structure of dissolved oxygen detection device |
| CN204241404U (en) * | 2014-12-18 | 2015-04-01 | 环境保护部南京环境科学研究所 | For the device of in-site detecting submerged plant rhizosphere micro-interface dissolved oxygen |
| CN205562388U (en) * | 2016-02-03 | 2016-09-07 | 环境保护部南京环境科学研究所 | Detection apparatus for muddy water of in site measurement simultaneously interface is co -altitude dissolved oxygen not |
-
2016
- 2016-02-03 CN CN201610076045.6A patent/CN105606578B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887344A1 (en) * | 2005-05-27 | 2008-02-13 | Kirin Beer Kabushiki Kaisha | Method for measuring oxygen amount in hermetically sealed container and piercing device for hermetically sealed container used therefor |
| CN101566573A (en) * | 2009-03-27 | 2009-10-28 | 中国海洋大学 | Two dimensional distribution detecting apparatus for dissolving oxygen at sediment-seawater interface |
| CN102087221A (en) * | 2010-12-24 | 2011-06-08 | 湖南省水产科学研究所 | Method for rapidly determining dissolved oxygen in water |
| CN203838104U (en) * | 2013-11-20 | 2014-09-17 | 刁昱翔 | Improved structure of dissolved oxygen detection device |
| CN204241404U (en) * | 2014-12-18 | 2015-04-01 | 环境保护部南京环境科学研究所 | For the device of in-site detecting submerged plant rhizosphere micro-interface dissolved oxygen |
| CN205562388U (en) * | 2016-02-03 | 2016-09-07 | 环境保护部南京环境科学研究所 | Detection apparatus for muddy water of in site measurement simultaneously interface is co -altitude dissolved oxygen not |
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|---|---|
| CN105606578A (en) | 2016-05-25 |
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