CN119643473A - Calibrating device for measuring dissolved oxygen meter in water body or liquid - Google Patents
Calibrating device for measuring dissolved oxygen meter in water body or liquid Download PDFInfo
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- CN119643473A CN119643473A CN202510169094.3A CN202510169094A CN119643473A CN 119643473 A CN119643473 A CN 119643473A CN 202510169094 A CN202510169094 A CN 202510169094A CN 119643473 A CN119643473 A CN 119643473A
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Abstract
The invention belongs to the technical field of dissolved oxygen measurement, and discloses a calibrating device for measuring a dissolved oxygen meter in water or liquid, which comprises a meter, wherein one side of the meter is provided with a connecting wire, one end of the connecting wire is provided with a detection probe, one side of the meter is provided with a storage tank positioned on one side of the connecting wire, the holding vessel front side is provided with the mount, and mount one side top fixed mounting has the supporting shoe, and connecting wire one end is located the supporting shoe bottom, and the mount front side is provided with the holding vessel, and the holding vessel bottom is provided with places the seat, and holding vessel one side fixed mounting has the connecting pipe. Through all obtaining the support fixed with the upper and lower both ends of test probe, improve test probe's stability, when preventing to adjust the position and the degree of depth of placing test probe, the unstable production of probe placement rocks to lead to can leading to the detection signal unstable, influence measuring result, be convenient for improve test probe calibration's accuracy and precision.
Description
Technical Field
The invention belongs to the technical field of dissolved oxygen measurement, and particularly relates to a calibrating device for measuring a dissolved oxygen meter in water or liquid.
Background
A dissolved oxygen meter is an instrument for measuring the concentration of dissolved oxygen in a body of water or liquid. The dissolved oxygen meter has wide application in the fields of environmental protection, aquaculture, ecological research and the like. However, due to the influence of various factors such as temperature, salinity, pressure, water flow and the like, the dissolved oxygen meter may have a large error after long-term use, and therefore, calibration needs to be performed regularly to ensure accuracy and reliability.
In the prior art, the detection probe is used for measuring water or liquid, the placement depth of the probe is required to be determined according to actual demands, and the probe is detected for multiple times at different depths, when the placement position and the depth of the detection probe are adjusted, the probe is unstable to place and easy to shake, so that detection signals are unstable, measurement results are affected, and the accuracy and the precision of the calibration of the detection probe are inconvenient to improve.
Disclosure of Invention
The calibrating device comprises a measuring instrument, wherein one side of the measuring instrument is provided with a connecting wire, one end of the connecting wire is provided with a detection probe, one side of the measuring instrument is provided with a storage tank, the front side of the storage tank is provided with a fixing frame, the top of one side of the fixing frame is fixedly provided with a supporting block, one end of the connecting wire is positioned at the bottom of the supporting block, the front side of the fixing frame is provided with a storage tank, the bottom of the storage tank is provided with a placing seat, one side of the storage tank is fixedly provided with a connecting pipe, one end of the connecting pipe is provided with a control valve, the other end of the connecting pipe is positioned in the storage tank, one end of the detecting probe is fixedly provided with a mounting ring, the bottom of the mounting ring is provided with an annular groove, the inside of the annular groove is movably connected with a movable rod, one end of the movable rod is fixedly provided with a mounting block, the inner wall of the mounting block is rotatably connected with the outer side of the detecting probe, the middle of the mounting block is provided with a groove, the inner wall of the movable block is fixedly connected with the connecting block, the bottom of the first electric push rod is fixedly arranged at the bottom of the connecting block, the first electric push rod is fixedly arranged at the bottom of the groove, two ends of the movable block are hinged with rotating plates, one end of the rotating plate is fixedly arranged at both sides of the bottom of the movable block is fixedly connected with the inner wall of the groove, and the two sides of the movable block are fixedly arranged at the inner sides of the inner wall of the movable block and are fixedly connected with the inner wall of the movable block.
As the preference of above-mentioned technical scheme, the holding vessel is inside to be provided with oxygen solution, and the inside photoelectric detection module that is provided with of test probe, test probe pass mount one side middle part and extend to the inside of holding vessel, and test probe just is located the bottom of moving structure and is provided with the protective cover.
As the preference of above-mentioned technical scheme, fixed stop and rotor plate all set up with movable block central symmetry, and the mounting groove has been seted up to the fixed stop bottom, and mounting groove inside fixed mounting has the second electric putter, and second electric putter one end fixed mounting has fixed fixture block, and fixed fixture block is located the mounting groove inside, and its draw-in groove has been seted up to one side.
As the preference of above-mentioned technical scheme, the mobile structure includes first rack, first rack one side and connecting block fixed mounting, and first rack one side meshing has the gear, gear middle part fixed mounting dwang, and gear one side meshing has the second rack, and second rack one side fixed mounting has the protection casing, and the fixed slot has been seted up to the protection casing bottom, and fixed slot inside fixed mounting has electric telescopic handle, and electric telescopic handle one end fixed mounting has the holding ring.
As the preference of above-mentioned technical scheme, the protection casing is located the installation piece bottom, and first rack, gear, second rack are located between protection casing and the first electric putter, and the holding ring is located inside the fixed slot, and first rack, gear, dwang, second rack, electric telescopic handle and holding ring all set up with installation piece central symmetry.
As the preference of above-mentioned technical scheme, the equal fixed mounting in second rack middle part both sides has first magnetic path, and first magnetic path is located the gear both sides, and the removal mouth has been seted up to second rack bottom and be located recess bottom inner wall, and removal mouth one side inner wall fixed mounting has two second magnetic paths, and first magnetic path is connected with second magnetic path magnetism.
As the preference of above-mentioned technical scheme, the dwang both sides all rotate and are connected with the fixed plate, fixed plate bottom and recess inner wall fixed mounting, and the limit groove has all been seted up to protection casing both sides inner wall, and limit inslot portion sliding connection has the limit piece, and the limit piece is located the recess below, and its one side and installation piece bottom outer wall fixed mounting.
As the preference of above-mentioned technical scheme, the shield cover has offered the installing port with protection casing outside threaded connection in the middle part of the shield cover, and the installing port is inside to be provided with the movable plate, and movable plate top fixed mounting has the dead lever, and dead lever top fixed mounting has the cleaning block, and movable plate bottom fixed mounting has the press piece, presses the telescopic link of piece top fixed mounting, and the sliding tray has been offered to telescopic link top and is located the shield cover bottom, telescopic link top and sliding tray sliding connection.
As the preference of above-mentioned technical scheme, press the piece and be located the shield bottom, the telescopic link is located the movable plate left and right sides and is the symmetry setting, and the dead lever passes the installing port with the cleaning block and extends to the shield inside, and the dead lever both sides are provided with compression spring, compression spring one end and cleaning block bottom fixed mounting, and its other end and movable plate top fixed mounting, cleaning block and the corresponding setting of detecting probe bottom.
The beneficial effects of the invention are as follows:
(1) According to the invention, the rotating plate drives the fixed baffle to rotate through the movement of the moving block, the fixed baffle is propped against the inner wall of the storage tank, the fixed clamping block is clamped at the top end of the storage tank, and meanwhile, the support ring is moved to be attached to the inner wall of the bottom of the storage tank through the movement of the moving structure, so that the upper end and the lower end of the detection probe are supported and fixed, the stability of the detection probe is improved, the unstable placement of the probe is prevented from shaking when the placement position and the depth of the detection probe are adjusted, the detection signal is unstable, the measurement result is influenced, and the accuracy and the precision of the calibration of the detection probe are conveniently improved;
(2) According to the invention, through the movement of the moving structure, the bottom of the detection probe is supported and fixed by the supporting ring, and the protective cover can be moved to the bottom of the detection probe to shield the detection probe, so that strong light is prevented from directly irradiating the probe in the detection process, and the interference on the optical signals detected by the photoelectric detection module in the detection probe is avoided, thereby being convenient for improving the accuracy of the measurement result;
(3) According to the invention, the detection probe and the bottom of the protective cover can be protected through the protective cover, when the detection probe is not used, the detection probe can be prevented from being damaged due to collision, and the cleaning block can clean the bottom of the detection probe in a bonding way by pressing and rotating the pressing block, so that the cleanliness of the detection probe is improved, and the impurity adhesion is prevented, so that the detection effect is affected.
Drawings
FIG. 1 is a schematic view showing the overall structure of an embodiment;
FIG. 2 is a block diagram of an embodiment detection probe;
FIG. 3 shows a cross-sectional view of an embodiment inspection probe;
FIG. 4 shows an enlarged view at A of FIG. 3;
FIG. 5 shows a block diagram of the stationary barrier, the rotating plate, and the inspection probe of the embodiment;
FIG. 6 is a block diagram showing a moving structure of the embodiment;
FIG. 7 is a block diagram showing the embodiment between the shield and the first power push rod;
FIG. 8 shows an enlarged view at B of FIG. 7;
FIG. 9 shows a bottom view of the embodiment detection probe and shield;
fig. 10 is a structural view showing the protective cover of the embodiment.
The device comprises a measuring instrument 1, a connecting wire 2, a connecting wire 3, a detecting probe 4, a storage tank 5, a fixing frame 6, a supporting block 7, a storage tank 8, a placing seat 9, a connecting pipe 10, a mounting ring 11, a movable rod 12, a mounting block 13, a movable block 14, a connecting block 15, a first electric push rod 16, a rotating plate 17, a fixed baffle plate 18, a movable structure 181, a first rack 182, a gear 183, a second rack 184, a protective cover 185, an electric telescopic rod 186, a supporting ring 19, a protective cover 20, a second electric push rod 21, a fixed clamping block 22, a first magnetic block 23, a second magnetic block 24, a fixed plate 25, a limiting block 26, a movable plate 27, a fixed rod 28, a cleaning block 29, a pressing block 30, a telescopic rod 31 and a compression spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a calibrating device for measuring dissolved oxygen meter in water or liquid, as shown in figures 1 to 5, comprising a meter 1, wherein one side of the meter 1 is provided with a connecting wire 2, one end of the connecting wire 2 is provided with a detection probe 3, one side of the meter 1 and one side of the connecting wire 2 are provided with a storage tank 4, the front side of the storage tank 4 is provided with a fixed frame 5, the top of one side of the fixed frame 5 is fixedly provided with a supporting block 6, one end of the connecting wire 2 is positioned at the bottom of the supporting block 6, the front side of the fixed frame 5 is provided with a storage tank 7, the bottom of the storage tank 7 is provided with a placement seat 8, one side of the storage tank 4 is fixedly provided with a connecting pipe 9, one end of the connecting pipe 9 is provided with a control valve, the other end of the connecting pipe is positioned in the storage tank 7, one end of the detection probe 3 is fixedly provided with a mounting ring 10, the ring channel is seted up to collar 10 bottom, the inside swing joint of ring channel has movable rod 11, movable rod 11 one end fixed mounting has installation piece 12, the recess is seted up at installation piece 12 middle part, recess inner wall sliding connection has movable block 13, movable block 13 bottom fixed mounting has connecting block 14, connecting block 14 bottom fixed mounting has first electric putter 15, first electric putter 15 bottom and recess bottom inner wall fixed mounting, movable block 13 top both ends all articulate and have rotor plate 16, rotor plate 16 one end articulates there is fixed baffle 17, the movable groove has been seted up on installation piece 12 top both sides, fixed baffle 17 both sides all rotate with the movable groove inner wall and are connected, first electric putter 15 one side just is located the installation piece 12 bottom outside and is provided with moving structure 18.
The holding vessel 4 is inside to be provided with oxygen solution, and the inside photoelectric detection module that is provided with of test probe 3, test probe 3 pass mount 5 one side middle part and extend to the inside of holding vessel 7, and test probe 3 just is located the bottom of moving structure 18 and is provided with shield 19.
The oxygen solution in the storage tank 4 is put into the solution to be tested through the control valve by the connecting pipe 9, the protective cover 19 is taken down, the detection probe 3 is put into the storage tank 7, the connecting wire 2 and the detection probe 3 are supported by the supporting block 6 and the fixing frame 5, the first electric push rod 15 drives the moving block 13 to move upwards along the inner wall of the groove, so that the rotating plate 16 deflects to push the fixed baffle 17, the two sides of the fixed baffle 17 rotate along the inner wall of the moving groove, the fixed baffle 17 rotates from a vertical state to a horizontal state, one end of the fixed baffle 17 is abutted against the inner wall of the top end of the storage tank 7, meanwhile, the moving structure 18 outside the bottom end of the mounting block 12 is driven to move to the bottom of the detection probe 3 by the action of the connecting block 14 when the first electric push rod 15 moves upwards, the bottom of the detection probe 3 is supported by the movement of the moving structure 18 and the inner wall of the bottom of the storage tank 7, so that the top and the bottom of the detection probe 3 are supported and fixed, the stability of the detection probe 3 is convenient to improve, the detection probe 3 is prevented from shaking after adjusting the depth and the position, the detection effect is influenced, the movable rod 11 is driven to rotate along the annular groove at the bottom of the mounting ring 10 by rotating the mounting block 12, the positions of the fixed baffle 17 and the rotating plate 16 are convenient to drive, when strong light irradiates, the detection probe 3 can be supported and can also be shielded by strong light by adjusting the position of the fixed baffle 17 at the top of the storage tank 7, the interference of the detection probe 3 by strong light is reduced, the measuring instrument 1 is restarted, the detection probe 3 detects the detected solution in the storage tank 7, the change of the oxygen solubility can cause the change of the light intensity absorbed by the solution, the photoelectric detection module is utilized to obtain the concentration of the dissolved oxygen by detecting the change of the light intensity, and the concentration of the dissolved oxygen is obtained according to the change of the detected light intensity, and meanwhile, the parameters of the tester 1 can be calibrated, so that the accuracy and precision of the calibration are improved, and the operation is convenient.
As shown in fig. 3 to 4, the fixed baffle 17 and the rotating plate 16 are symmetrically arranged with the center of the moving block 13, the bottom of the fixed baffle 17 is provided with a mounting groove, the inside of the mounting groove is fixedly provided with a second electric push rod 20, one end of the second electric push rod 20 is fixedly provided with a fixed clamping block 21, the fixed clamping block 21 is positioned in the mounting groove, and one side of the fixed clamping block 21 is provided with a clamping groove.
Through the fixed stop 17 and the rotating plate 16 that the symmetry set up, can support tightly fixedly with the top inner wall both sides of depositing jar 7, improve the fixed stability in test probe 3 top, drive fixed fixture block 21 through starting second electric putter 20 and remove out the mounting groove for the draw-in groove of fixed fixture block 21 can block the top of depositing jar 7, thereby further improve the stability of fixed stop 17, be convenient for detect probe 3 and detect.
As shown in fig. 6 to 8, the moving structure 18 includes a first rack 181, one side of the first rack 181 is fixedly mounted on the connecting block 14, a gear 182 is engaged on one side of the first rack 181, a rotating rod is fixedly mounted in the middle of the gear 182, a second rack 183 is engaged on one side of the gear 182, a protecting cover 184 is fixedly mounted on one side of the second rack 183, a fixing groove is formed in the bottom of the protecting cover 184, an electric telescopic rod 185 is fixedly mounted in the fixing groove, a supporting ring 186 is fixedly mounted at one end of the electric telescopic rod 185, the protecting cover 184 is located at the bottom of the mounting block 12, the first rack 181, the gear 182 and the second rack 183 are located between the protecting cover 184 and the first electric push rod 15, the supporting ring 186 is located in the fixing groove, and the first rack 181, the gear 182 rotating rod, the second rack 183, the electric telescopic rod 185 and the supporting ring 186 are all symmetrically arranged in the center of the mounting block 12.
When first electric putter 15 drives connecting block 14 and movable block 13 upward movement, movable block 13 drives first rack 181 upward movement, make gear 182 drive the dwang and rotate, with second rack 183 drive protection casing 184 downwardly movement, first rack 181 through the symmetry setting, gear 182, the dwang, second rack 183, electric telescopic handle 185 and support ring 186, can improve the stability that protection casing 184 removed, make protection casing 184 remove the bottom outside to detecting probe 3 from the installation piece 12 bottom, shelter from detecting probe 3's outside, prevent the illumination of highlight, the detection of interference detecting probe 3, start electric telescopic handle 185 simultaneously and drive support ring 186 downwardly moving, make supporting block 6 and the bottom inner wall laminating of depositing jar 7, support detecting probe 3's bottom, improve detecting probe 3's bottom stability, can all obtain the support when being convenient for detecting probe 3 to place at different depths according to detecting probe 3's degree of depth of placing through electric telescopic handle 185 drive support ring 186's removal.
As shown in fig. 6 to 8, the first magnetic blocks 22 are fixedly mounted on two sides of the middle of the second rack 183, the first magnetic blocks 22 are located on two sides of the gear 182, a moving opening is formed in the bottom of the second rack 183 and in the inner wall of the bottom of the groove, two second magnetic blocks 23 are fixedly mounted on the inner wall of one side of the moving opening, and the first magnetic blocks 22 are magnetically connected with the second magnetic blocks 23.
When the second rack 183 drives the shield 184 to move downwards, the bottom end of the second rack 183 passes through the moving opening to move downwards, so that the shield 184 moves to the outer side of the bottom end of the detection probe 3, when the second rack 183 and the top end of the shield 184 move to the position of the gear 182, the first magnetic block 22 in the middle of the second rack 183 moves to the second magnetic block 23 of the moving opening, the position of the shield 184 is fixed through the magnetic connection of the first magnetic block 22 and the second magnetic block 23, the stability of the shield 184 is improved, the shielding effect of the shield 184 on the detection probe 3 is conveniently improved, and the interference on the optical signals detected by the photoelectric detection module in the detection probe 3 is avoided, so that the accuracy of the measurement result is conveniently improved.
As shown in fig. 6 to 8, both sides of the rotating rod are rotatably connected with a fixing plate 24, the bottom of the fixing plate 24 is fixedly mounted on the inner wall of the groove, both inner walls of both sides of the protective cover 184 are provided with limiting grooves, limiting blocks 25 are slidably connected in the limiting grooves, the limiting blocks 25 are located below the groove, and one side of each limiting block is fixedly mounted on the outer wall of the bottom end of the mounting block 12.
The stability when gear 182 drives the dwang rotation is convenient for improve through fixed plate 24, and when protection casing 184 moves down, the limit piece 25 in the installation piece 12 bottom outside moves along the limit groove of protection casing 184 inner wall, further prescribes a limit to protection casing 184, further improves the stability that protection casing 184 removed, is convenient for improve the effect of sheltering from, and the electric telescopic handle 185 of being convenient for drives support ring 186 and removes, supports the bottom of detecting probe 3, the use of detecting probe 3 of being convenient for.
As shown in fig. 9 to 10, the protective cover 19 is in threaded connection with the outer side of the protective cover 184, a mounting opening is formed in the middle of the protective cover 19, a movable plate 26 is arranged in the mounting opening, a fixed rod 27 is fixedly mounted at the top of the movable plate 26, a cleaning block 28 is fixedly mounted at the top of the fixed rod 27, a pressing block 29 is fixedly mounted at the bottom of the movable plate 26, a telescopic rod 30 is fixedly mounted at the top of the pressing block 29, a sliding groove is formed in the top of the telescopic rod 30 and positioned at the bottom of the protective cover 19, and the top of the telescopic rod 30 is in sliding connection with the sliding groove.
Through protective cover 19 and protection casing 184 outside threaded connection, can be convenient for take off protective cover 19 and use test probe 3 to can protect in the bottom of test probe 3 and protection casing 184 through protective cover 19, when not using test probe 3, can prevent that test probe 3 from receiving the striking and leading to damaging, when protective cover 19 is located the bottom of protection casing 184 and test probe 3, upwards press pressing briquetting 29, telescopic link 30 shrink, make pressing briquetting 29 drive movable plate 26 and dead lever 27 remove to the inside of protective cover 19 from the installing port, simultaneously make dead lever 27 drive clean piece 28 and remove the bottom of test probe 3, rotate again and press briquetting 29 drive telescopic link 30 and rotate along the sliding tray, make movable plate 26 drive dead lever 27 and clean piece 28 and rotate along the bottom of test probe 3, clean the bottom of test probe 3, still can clean test probe 3 when not opening protective cover 19, be convenient for improve the cleanliness of test probe 3, prevent that impurity from adhering, influence the effect of detection.
As shown in fig. 9 to 10, the pressing block 29 is located at the bottom of the protective cover 19, the telescopic rods 30 are symmetrically arranged at the left side and the right side of the moving plate 26, the fixing rods 27 and the cleaning blocks 28 penetrate through the mounting openings to extend into the protective cover 19, compression springs 31 are arranged at two sides of the fixing rods 27, one ends of the compression springs 31 are fixedly arranged at the bottom of the cleaning blocks 28, the other ends of the compression springs are fixedly arranged at the top of the moving plate 26, and the cleaning blocks 28 are correspondingly arranged at the bottom of the detection probe 3.
Because press the briquetting 29 and be located the protective cover 19 bottom, be convenient for upwards press briquetting 29 for movable plate 26 drives dead lever 27 and clean piece 28 and removes the bottom of detecting probe 3, and movable plate 26 drives when dead lever 27 and clean piece 28 remove the bottom of detecting probe 3, makes clean piece 28 and the laminating of the bottom of detecting probe 3 through compression spring 31's effect, when rotating press briquetting 29, can be under the effect of movable plate 26 and dead lever 27 for clean piece 28 cleans detecting probe 3, improves the cleanliness, thereby convenient to use.
Working principle: when in use, the measured solution is put into the storage tank 7, the oxygen solution in the storage tank 4 enters the measured solution through the control valve by the connecting pipe 9, the protective cover 19 is rotated to take down the measured solution, the detection probe 3 is put into the storage tank 7, the connecting wire 2 and the detection probe 3 are supported by the supporting block 6 and the fixing frame 5, the moving block 13 is driven to move upwards along the inner wall of the groove by starting the first electric push rod 15, so that the rotating plate 16 deflects to push the fixed baffle 17 to deflect, the two sides of the fixed baffle 17 rotate along the inner wall of the moving groove, the fixed baffle 17 rotates from a vertical state to a horizontal state, one end of the fixed baffle 17 is abutted against the inner wall of the top end of the storage tank 7, the second electric push rod 20 is started again to drive the fixed clamping block 21 to move out of the mounting groove, the clamping groove of the fixed clamping block 21 can clamp the top of the storage tank 7, thereby further improving the stability of the fixed baffle 17, simultaneously, the first rack 181 is driven to move upwards by the action of the connecting block 14 when the first electric push rod 15 moves upwards, so that the gear 182 drives the rotating rod to rotate along the fixed plate 24, the second rack 183 drives the protective cover 184 to move downwards from the moving opening, the limiting block 25 moves along the limiting groove, when the top ends of the second rack 183 and the protective cover 184 move to the position of the gear 182, the first rack 181 in the middle of the second rack 183 moves to the second magnetic block 23 of the moving opening, the protective cover 184 moves to the outer side of the bottom end of the detection probe 3 from the bottom end of the mounting block 12 through the magnetic connection of the first magnetic block 22 and the second magnetic block 23, the position of the protective cover 184 is fixed, strong light irradiation is prevented, detection of the detection probe 3 is interfered, meanwhile, the electric telescopic rod 185 is started to drive the supporting ring 186 to move downwards, make supporting shoe 6 and the laminating of the bottom inner wall of depositing jar 7, support the bottom of test probe 3, make the top and the bottom of test probe 3 all obtain supporting fixedly, restart apparatus 1, make test probe 3 detect the inside measured solution of depositing jar 7, change of oxygen solubility can lead to the change of solution absorbing light intensity, utilize photoelectric detection module to obtain the concentration of dissolved oxygen through the change of detection light intensity, obtain the concentration of dissolved oxygen according to the change of detection light intensity, can calibrate the parameter of apparatus 1 simultaneously, the accuracy and the precision of improvement calibration, and convenient operation.
When the protective cover 19 is located the bottom of protection casing 184 and test probe 3, push down pressing piece 29 upwards, telescopic link 30 shrink, make pressing piece 29 drive movable plate 26 and dead lever 27 remove the inside of protective cover 19 from the installing port, make dead lever 27 drive clean piece 28 remove the bottom of test probe 3 simultaneously, make clean piece 28 and the laminating of the bottom of test probe 3 through compression spring 31's effect, rotate again and push down pressing piece 29 and drive telescopic link 30 along the sliding tray rotation, make movable plate 26 drive dead lever 27 and clean piece 28 and rotate along the bottom of test probe 3, clean the bottom of test probe 3, still can clean test probe 3 when not opening protective cover 19 again, be convenient for improve the cleanliness of test probe 3, prevent impurity adhesion, influence the effect of detection.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510169094.3A CN119643473B (en) | 2025-02-17 | 2025-02-17 | A calibration device for measuring dissolved oxygen in water or liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510169094.3A CN119643473B (en) | 2025-02-17 | 2025-02-17 | A calibration device for measuring dissolved oxygen in water or liquid |
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| Publication Number | Publication Date |
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| CN119643473A true CN119643473A (en) | 2025-03-18 |
| CN119643473B CN119643473B (en) | 2025-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510169094.3A Active CN119643473B (en) | 2025-02-17 | 2025-02-17 | A calibration device for measuring dissolved oxygen in water or liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120231942A (en) * | 2025-03-28 | 2025-07-01 | 内蒙古财经大学 | Air pollution detection device |
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| JPH0634317A (en) * | 1992-07-13 | 1994-02-08 | Fuji Photo Optical Co Ltd | Optical inspection equipment shielding device |
| WO2006094431A1 (en) * | 2005-03-08 | 2006-09-14 | Beijing Yuande Bio-Medical Engineering Co., Ltd. | Shade hood, test head assembly and test apparatus including the same |
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| CN120231942B (en) * | 2025-03-28 | 2025-10-10 | 内蒙古财经大学 | Air pollution detection device |
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| CN119643473B (en) | 2025-05-27 |
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