CN110826190A - Design method of portable device for measuring concentration of sol solution based on Tyndall effect - Google Patents
Design method of portable device for measuring concentration of sol solution based on Tyndall effect Download PDFInfo
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- CN110826190A CN110826190A CN201910975016.7A CN201910975016A CN110826190A CN 110826190 A CN110826190 A CN 110826190A CN 201910975016 A CN201910975016 A CN 201910975016A CN 110826190 A CN110826190 A CN 110826190A
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Abstract
The invention discloses a design method of a portable experimental device for measuring sol solution concentration based on the Tyndall effect. The invention is composed of a rotatable sample mounting and rotating component, a mounting bottom plate, a light source component, an image sensor component, a spring positioning component, an upper cover plate, a side cover plate and the like. The sample mounting and rotating part comprises a test tube mounting disc, a test tube bottom supporting disc, a rotating shaft and the like; the light source is arranged on the light source fixing support, the digital image sensor is arranged on the sensor fixing support, and the light source fixing support and the sensor fixing support can be adjusted in position in the light source installation adjusting groove of the installation bottom plate and fixed through threads; the spring positioning beads are arranged on the positioning bead fixing support, and the positioning bead fixing support is arranged on the mounting bottom plate. The device has the advantages of simple structure, convenient operation, low manufacturing cost, convenient carrying and suitability for field analysis and timely measurement.
Description
Technical Field
The invention relates to a portable measuring device for measuring the concentration of sol liquid based on the Tyndall effect, which is mainly used for measuring the concentration of sol liquid containing nano gold, nano silver ions and the like in the field.
Background
There is a wide demand in various fields to quantitatively measure the concentration of a liquid. At present, liquid concentration detection methods mainly comprise a chemical titration method, a spectroscopic method, a spectrophotometry method, an optical rotation method, a resonance method and a fluorescence probe method, and the methods and related detection instrument devices have the advantages of mature technology, high detection precision and the like, but the instrument devices have the defects of high price, large volume, high environmental condition requirements and the like, need to be used in a laboratory, and cannot meet the requirements of carrying and field immediate detection after liquid sampling. In some current special applications, a liquid object to be researched needs to be sampled in the field, and the concentration of the sampled liquid needs to be detected immediately, and the conventional liquid concentration detection method and device cannot meet the requirement. The invention provides a design method of a portable sol liquid concentration measurement experimental device, which is used for researching the relation between the intensity of Tyndall light and a digital image and the relation between the concentration of sol liquid and the intensity of Tyndall light.
Disclosure of Invention
The invention aims to provide a design method of a portable sol liquid concentration measurement experimental device which is simple to operate, and the portable sol liquid experimental device designed by the method is used for researching the relation between the intensity of Tyndall light and a digital image and the relation between the concentration of sol liquid and the intensity of Tyndall light.
The portable device for measuring the concentration of the sol solution in real time has the following concrete implementation method:
(1) the portable measuring device comprises a rotatable sample mounting and rotating component, a mounting base plate, a light source component, an image sensor component, a spring positioning component, an upper cover plate, a side cover plate and the like.
(2) The sample mounting and rotating part comprises a test tube mounting disc, a test tube bottom supporting disc, a rotating shaft and the like. A plurality of straight-through test tube mounting circular holes are uniformly distributed on the circumference of the test tube mounting disc close to the outer diameter, and a rotating shaft mounting hole is formed in the center of the disc; the test tube bottom supporting disc supports the bottom of the test tube, and a rotating shaft mounting hole is formed in the center of the disc. The rotating shaft is made of nylon or POM materials, the upper part of the rotating shaft is provided with a flange step for fixing the test tube mounting disc, and the lower part of the rotating shaft is provided with a circular shaft end mounted in a rotating hole of the mounting bottom plate. The rotation axis passes the rotation axis mounting hole of support disc at the bottom of test tube installation disc and the test tube, utilizes the screw thread to fix on the flange step of rotation axis with support disc at the bottom of test tube installation disc and the test tube, and interval between two discs suits with the straight wall length of test tube.
(3) The light source component consists of a light source and a light source fixing support, the light source is arranged on the light source fixing support, and the light source fixing support can be adjusted in position in a light source installation adjusting groove of the installation bottom plate and fixed through threads.
(4) The image sensor part comprises a digital image sensor and a sensor fixing support, the digital image sensor is installed on the sensor fixing support, and the sensor fixing support can be adjusted in position in a sensor installation adjusting groove of the installation bottom plate and fixed through threads.
(5) The spring positioning component consists of a spring positioning bead and a positioning bead fixing support, the spring positioning bead is arranged on the positioning bead fixing support, and the positioning bead fixing support is arranged on the mounting bottom plate.
(6) The mounting bottom plate is made of black materials such as black POM or black nylon. The mounting bottom plate is provided with a rotating shaft hole, a light source component mounting and adjusting groove, a sensor component mounting and adjusting groove and the like; the rotating shaft of the sample mounting and rotating component is mounted in the rotating shaft hole of the mounting bottom plate; the light source component is arranged in a light source component mounting adjusting groove of the mounting bottom plate, and after the distance between the light source and the sample is adjusted in the adjusting groove, the light source component is fixed by threads; the sensor component is arranged in a sensor component mounting adjusting groove of the mounting bottom plate, the distance between the sensor component and the sample to be tested is adjusted in the groove, and the sensor component is fixed by threads; the spring positioning part is installed on the installation bottom plate, and the position of the spring positioning part is adjusted, so that the test tube to be tested is positioned on the central axis of the sensor part when the test tube is installed and the rotating mechanism rotates.
(7) The upper cover plate is made of black POM or black nylon material. The upper cover plate is provided with a round hole matched with the diameter of the sample mounting disc of the sample mounting and rotating component, the round hole is concentric with the rotating shaft hole of the mounting bottom plate, and when the sample mounting and rotating component performs rotating motion for switching samples, the sample mounting and rotating component and the sample mounting disc perform rotating motion in the hole.
(8) Except for the installation bottom plate and the upper cover plate, the four surfaces of the measuring device are sealed by black POM thin plates to form a darkroom.
(9) The method comprises the steps of loading 6 sol solutions with known concentration and 2 sol solutions with concentration to be measured into a glass test tube, placing the test tube into a sample mounting hole of a test tube mounting disc in a sample mounting and rotating component, starting a light source, rotating the test tube mounting and rotating mechanism, realizing rotary positioning by a spring positioning component, and shooting digital images at each positioning point.
Drawings
FIG. 1 is a top view of the overall structure of the device
FIG. 2 is a schematic diagram of the position of the light source and the sensor
FIG. 3 rotating parts side view (left) and top view (right)
① light source module ② image sensor module ③ tube bottom support disk ④ support column ⑤ mounting base plate ⑥ adjustment slot ⑦ spring positioning module ⑧ rotating module
Detailed Description
Example 1:
(1) the portable measuring device comprises a rotatable sample mounting and rotating component, a mounting base plate, a light source component, an image sensor component, a spring positioning component, an upper cover plate, a side cover plate and the like.
(2) The sample mounting and rotating part comprises a test tube mounting disc, a test tube bottom supporting disc, a rotating shaft and the like. The diameter of the test tube mounting disc is 110mm, 8 straight-through test tube mounting circular holes with the diameter of 12mm are uniformly distributed on the circumference close to the outer diameter of 90mm, and a rotating shaft mounting hole with the diameter of 10mm is formed in the center of the disc; the test tube bottom supporting disc supports the bottom of a test tube, and a rotating shaft mounting hole with the diameter of 20mm is formed in the center of the disc. The rotation axis is made by nylon or POM material, and upper portion has the flange step of fixed test tube installation disc, and the diameter of step upper portion axle is 10mm, and the diameter of step lower part axle is 20mm, and the bottommost has the length to be 10mm diameter to be 16 mm's step axle, and this 16mm diameter axle is installed in mounting plate rotation shaft hole. The rotation axis passes the rotation axis mounting hole of support disc at the bottom of test tube installation disc and the test tube, utilizes the screw thread to fix on the flange step of rotation axis with support disc at the bottom of test tube installation disc and the test tube, and the interval adjustment between two discs is 20 mm.
(3) The light source part consists of a light source and a light source fixing bracket, and the light source uses a red or green laser light source. The light source mounting bracket is made of black POM materials and is roughened to reduce light reflection, the light source is mounted on the light source fixing bracket, and the light source fixing bracket can be adjusted in position in the light source mounting adjusting groove of the mounting base plate and fixed through threads.
(4) The image sensor part consists of a digital image sensor and a sensor fixing support, and the sensor fixing support is made of black POM materials and is subjected to roughening treatment to reduce light reflection. The digital image sensor is arranged on a sensor fixing support, and the sensor fixing support can be adjusted in position in a sensor mounting adjusting groove of the mounting base plate and fixed through threads.
(5) The spring positioning component consists of a spring positioning bead and a positioning bead fixing support, the bead diameter of the spring positioning bead is 4mm, the spring positioning bead is installed on the positioning bead fixing support, and the positioning bead fixing support is installed on the installation bottom plate.
(6) The mounting bottom plate is made of black POM material with the thickness of 8 mm. The mounting base plate is provided with a rotating shaft hole with the diameter of 16mm, a light source component mounting and adjusting groove with the width of 30mm and the depth of 3mm and the length of 60mm, a sensor component mounting and adjusting groove with the width of 60mm and the length of 3mm of 40mm, and the light source mounting and adjusting groove and the sensor component mounting and adjusting groove form an included angle of 90 degrees. A shaft with the diameter of 16mm at the bottom of a rotating shaft of the sample mounting and rotating component is mounted in a rotating shaft hole of the mounting bottom plate; the light source component is arranged in a light source component mounting adjusting groove of the mounting bottom plate, and after the distance between the light source and the sample is adjusted in the adjusting groove, the light source component is fixed by threads; the sensor component is arranged in a sensor component mounting adjusting groove of the mounting base plate, the distance between the sensor component and the sample to be tested is adjusted in the adjusting groove, and the sensor component is fixed by screw threads; the spring positioning part is arranged on the mounting bottom plate, and the position of the spring positioning part is adjusted, so that the test tube to be tested is positioned on the central axis of the sensor part when the test tube is mounted and the rotating mechanism rotates
(7) The upper cover plate is made of black POM or black nylon material. The upper cover plate is provided with a round hole which has the diameter of 110mm +0.2mm and is concentric with a rotating shaft hole of the mounting bottom plate, and the sample mounting and rotating component and the sample mounting disk rotate in the hole when the sample mounting and rotating component performs the rotating motion of switching the sample.
(8) Except for the installation bottom plate and the upper cover plate, the four surfaces of the measuring device are sealed by a black POM thin plate with the thickness of 2mm to form a darkroom.
(9) The concentration of 6 reference sol solutions was chosen to be 0.5518X 10-5g/ml、0.8277×10-5g/ml、1.3795×10-5g/ml、2.2.72×10-5g/ml、2.759×10-5g/ml、3.3108×10-5g/ml、3.8626×10-5g/ml、4.6903×10-5g/ml. The method comprises the steps of respectively filling 6 known reference liquids and 2 sol liquids to be detected into glass test tubes, putting the test tubes into test tube mounting round holes of test tube fixing discs in a test tube mounting and rotating mechanism, starting a light source, rotating the test tube mounting and rotating mechanism, and sequentially shooting digital images on each positioning point of a spring positioning mechanism.
The above description is only one specific embodiment of the present invention, but the present invention is not limited to this embodiment.
Claims (9)
1. A design method of a portable device for measuring sol solution concentration based on the Tyndall effect is characterized in that the device comprises a rotatable sample mounting and rotating component, a mounting bottom plate, a light source component, an image sensor component, a spring positioning component, an upper cover plate, a side cover plate and the like.
2. The design method of portable device for measuring sol solution concentration based on Tyndall effect as claimed in claim 1, wherein all components in the device are made of black POM or black nylon material, and the interior is closed to form a dark room.
3. The design method of the portable device for measuring sol solution concentration based on the tyndall effect as claimed in claim 1, wherein the sample mounting and rotating member is composed of a test tube mounting disc, a test tube bottom supporting disc, a rotating shaft, etc.
4. The design method of the portable device for measuring the sol solution concentration based on the Tyndall effect as claimed in claim 3, wherein the test tube mounting disc is evenly distributed with a plurality of straight through test tube mounting circular holes on the circumference close to the outer diameter, and a rotating shaft mounting hole is arranged at the center of the disc; the test tube bottom supporting disc supports the bottom of a test tube, and a rotating shaft mounting hole is formed in the center of the disc; the upper part of the rotating shaft is provided with a flange step for fixing the test tube mounting disc, and the lower part of the rotating shaft is provided with a circular shaft end arranged in a rotating hole of the mounting bottom plate; the rotation axis passes the rotation axis mounting hole of support disc at the bottom of test tube installation disc and the test tube, utilizes the screw thread to fix on the flange step of rotation axis with support disc at the bottom of test tube installation disc and the test tube, and interval between two discs suits with the straight wall length of test tube.
5. The method of claim 1, wherein the mounting base plate has a rotation axis hole, a light source component mounting and adjusting groove, a sensor component mounting and adjusting groove, and the like.
6. The design method of the portable device for measuring the concentration of sol solution based on the Tyndall effect as claimed in claim 5, wherein the light source is mounted on a light source fixing bracket and the digital image sensor is mounted on a sensor fixing bracket, the light source fixing bracket and the sensor fixing bracket can be adjusted in position in the adjusting groove of the mounting base plate and fixed by screw threads.
7. The design method of the portable device for measuring the sol solution concentration based on the tyndall effect as claimed in claim 1, wherein the spring positioning beads are mounted on a positioning bead fixing bracket, and the positioning bead fixing bracket is mounted on a mounting base plate; and adjusting the position of the spring positioning part to enable the test tube to be tested to be positioned on the central axis of the sensor part when the test tube is installed and the rotating mechanism rotates.
8. The design method of a portable device for measuring sol solution concentration based on the tyndall effect as claimed in claim 1, wherein said upper cover plate is formed with a circular hole matching the diameter of the sample mounting disk of the sample mounting and rotating member, the circular hole is concentric with the rotating shaft hole of the mounting base plate, and the sample mounting and rotating member and the sample mounting disk rotate in the hole when the sample mounting and rotating member performs the rotation movement for switching the sample.
9. The design method of the portable device for measuring sol solution concentration based on the tyndall effect as claimed in claim 1, wherein the test tube is placed in the test tube mounting hole of the test tube mounting disc in the test tube mounting and rotating member, the light source is turned on, the test tube mounting and rotating mechanism is rotated, the spring positioning member realizes rotational positioning, and a digital image is taken at each positioning point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975016.7A CN110826190A (en) | 2019-10-15 | 2019-10-15 | Design method of portable device for measuring concentration of sol solution based on Tyndall effect |
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| CN201910975016.7A CN110826190A (en) | 2019-10-15 | 2019-10-15 | Design method of portable device for measuring concentration of sol solution based on Tyndall effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358603A (en) * | 2021-06-04 | 2021-09-07 | 中国核动力研究设计院 | Solution uniformity evaluation device and method |
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Inventor after: Nie Jinfang Inventor after: Jiang Cunbo Inventor after: Xiao Hongxiang Inventor after: Qin Yaling Inventor after: Zhu Tiantian Inventor before: Qin Yaling Inventor before: Zhu Tiantian Inventor before: Jiang Cunbo |