CN108507978B - Domestic self-made drink concentration measuring instrument - Google Patents
Domestic self-made drink concentration measuring instrument Download PDFInfo
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- CN108507978B CN108507978B CN201810526374.5A CN201810526374A CN108507978B CN 108507978 B CN108507978 B CN 108507978B CN 201810526374 A CN201810526374 A CN 201810526374A CN 108507978 B CN108507978 B CN 108507978B
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
Abstract
The invention discloses a household home-made beverage concentration measuring instrument, which relates to kitchen utensils and comprises a shell, a main controller, a first light emitting module and a second light receiving module, wherein the bottom of the shell is provided with a first right-angle trapezoidal counter bore which is used for extending into and accommodating a solution to be measured; the first light emitting module is arranged in a first cavity part on one side of a first inclined plane of the first right-angle trapezoidal counter bore, and the second light receiving module is arranged in a second cavity part on one side of a second right-angle plane of the first right-angle trapezoidal counter bore; the main controller comprises a first light emitting control module, a refraction light receiving module, a refractive index solving module and a solution concentration solving module. The invention avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Description
Technical Field
The invention relates to the field of water cups, in particular to a household self-made drink concentration measuring instrument.
Background
In daily life, people often drink sugar water, prepare normal saline or prepare saline with seawater concentration so as to make the sea fresh and spit sand.
In the prior art, sugar water and brine are usually blended by a weighing method, and actually, the amount of a solution in a common household is not large, on one hand, the weighing precision of the weighing method is required to be improved, the concentration of the prepared solution is not easy to be accurate, and on the other hand, if the precision of the weighing method is reduced by adding a solvent and a solute, the waste of water resources and the solute is easily caused.
In addition, the following problems are also present with the weighing method: 1) manually converting the solute volume to solve the concentration; 2) the solution concentration will not be available again due to evaporation or after a variable addition.
Disclosure of Invention
In view of some of the above-mentioned drawbacks of the prior art, the present invention provides a home-made beverage concentration measuring apparatus, which is used for obtaining a relatively accurate solution concentration by measuring the refractive index of the solution and solving the concentration of the solution according to the refractive index, so as to prepare a home-made beverage with a proper concentration.
In order to achieve the purpose, the invention provides a household self-made drink concentration measuring instrument which comprises a shell, a main controller, a first light emitting module and a second light receiving module, wherein the bottom of the shell is provided with a first right-angle trapezoidal counter bore for extending into and containing a solution to be measured; the first light emitting module is arranged in a first cavity part on one side of a first inclined plane of the first right-angle trapezoidal counter bore, and the second light receiving module is arranged in a second cavity part on one side of a second right-angle plane of the first right-angle trapezoidal counter bore; the first light ray and the second light ray emitted by the first light emitting moduleThe normal lines of the right-angle surfaces are parallel, and the included angle between the first light ray emitted by the first light emitting module and the normal line of the first inclined surface is a first incident angle thetai(ii) a The distance from the intersection point of the first light ray and the first inclined plane to the second right-angle plane is a first distance L;
the first output end of the main controller is connected with the first light emitting module; the second light receiving module is connected with a second input end of the main controller; the main controller comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module and a solution concentration solving module;
the first light emission control module is used for controlling the first light emission module to emit first light;
the refracted light ray receiving module is used for responding to the first light ray emitted by the first light emitting module, and acquiring the offset distance D of the first light ray emitted by the first light emitting module on the second light receiving module after being refracted by the solution to be measured in the first right-angle trapezoidal counter bore at the bottom of the concentration measuring instrument;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies:
wherein, thetai≠0；
The solution to be measured concentration solving module is used for obtaining the concentration c of the solution to be measured according to the refractive index of the solution to be measured, the solute information of the solution to be measured and the solvent of the solution to be measured; the solute information includes a refractive index-concentration relationship curve that satisfies: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve.
In this technical scheme, through the position design of first light emitting module, second light receiving module, first inclined plane, second right angle face to try to get the refracting index, and further try to get solution concentration through the refracting index, so that the user can obtain comparatively accurate solution concentration, so that prepare the domestic self-made beverage of suitable concentration. The technical scheme avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Through experiments on the relation between the concentration of the sucrose and the refractive index, the inventor finds that a single soluble substance which does not chemically react with water is mixed with water, and the refractive index is related to the proportion of the two, namely, the higher the solution mass ratio is, the higher the refractive index of the solution is, and the curve relation is met; in addition, the inventor also conducts experiments on the relation between the brine concentration and the refractive index, and the above rule is also met. Based on the above mechanism, in the present embodiment, the concentration of the solution can be known by measuring the concentration of the solution when the solute of the solution is known.
In a specific embodiment, a mounting part for mounting the measuring instrument on the wall of a first container for holding the solution to be measured extends outwards from the middle part or the upper part of the shell; the mounting part is of an inverted L shape. Through setting up the mount portion, be convenient for fix the concentration measurement appearance on the container.
In a specific embodiment, the housing is further provided with a display module for displaying the concentration of the solution, and an input end of the display module is connected with a third output end of the main controller.
In a specific embodiment, the housing is further provided with an input module for inputting the solute category, and a fourth input end of the main controller is connected with the input module.
In this example, the solute is a single edible product.
Optionally, the solute category is one of sucrose, salt, glucose and honey.
In one embodiment, the first inclined plane is made of a light-transmitting material, and the second right-angle plane is made of a light-transmitting material.
In one embodiment, the first inclined surface is planar; the second right-angle surface is a plane. Through the planar design, the refractive index solving precision is improved, the equipment installation accuracy is reduced, and the assembly cost is reduced.
In a specific embodiment, the main controller further includes an intrinsic offset distance obtaining module, configured to collect, when the first right-angle trapezoid counter bore is empty, an intrinsic offset distance D of the first light beam on the second light receiving module after being refracted0；
The refraction ray receiving module is also used for receiving the intrinsic offset distance D0Correcting the offset distance D acquired when the first right-angle trapezoid counter bore is loaded with the solution; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
In the technical scheme, the intrinsic offset distance is solved, so that the influence of the refractive index of the material on the refraction of the light path is eliminated or reduced, and the measurement accuracy of the refractive index is improved.
Optionally, the second light receiving module is planar;
in a specific embodiment, the second light receiving module includes a photo-resistor array.
In the technical scheme, the emergent position of the first light ray is measured through the photoresistor array.
And acquiring the position of the second light receiving module for receiving the light according to the array unit with the reduced resistance value of the photoresistor array.
In a specific embodiment, the main controller further includes: and the solute input acquisition module is used for acquiring the solute information input by the user.
In a specific embodiment, the main controller further includes a storage module, configured to store at least one of the solute information for user selection, where the solute information includes a solute name and a multiple coefficient of a refractive index-concentration relationship curve corresponding to the solute name.
In the technical scheme, the refractive index-concentration relation curves of various solutes are preset, so that the selection is effectively provided for a user, and the system compatibility is improved.
The invention has the beneficial effects that: according to the invention, the refractive index is obtained through the position design of the first light emitting module, the second light receiving module, the first inclined plane and the second right-angle plane, and the solution concentration is further obtained through the refractive index, so that a user can obtain more accurate solution concentration, and a household self-made drink with proper concentration can be prepared. The invention avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Drawings
FIG. 1 is a schematic structural diagram of a home-made beverage concentration measuring instrument working with a container according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for measuring the concentration of home-made drink according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a refracted light path of a first light ray in an embodiment of the invention;
FIG. 4 is a block diagram of a household home-made drink concentration measuring instrument according to an embodiment of the present invention;
FIG. 5 is a graph of sugar water concentration versus refractive index in accordance with one embodiment of the present invention;
FIG. 6 is a graph of saline concentration versus refractive index in accordance with one embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 6, in a first embodiment of the present invention, a home-made beverage concentration measuring instrument is provided, which is characterized in that the measuring instrument comprises a housing 100, a main controller 200, a first light emitting module 104 and a second light receiving module 107, wherein the bottom of the housing 100 is provided with a first right-angle trapezoid counter bore 101 for extending into and containing a solution to be measured;the first light emitting module 104 is arranged in the first cavity part 103 on the side of the first inclined plane 102 of the first right-angle trapezoidal counter bore 101, and the second light receiving module 107 is arranged in the second cavity part 106 on the side of the second right-angle plane 105 of the first right-angle trapezoidal counter bore 101; the first light emitted by the first light emitting module 104 is parallel to the normal of the second right-angle surface 105, and an included angle between the first light emitted by the first light emitting module 104 and the normal of the first inclined surface 102 is a first incident angle θi(ii) a The distance from the intersection point of the first light ray and the first inclined plane 102 to the second right-angle plane 105 is a first distance L;
a first output terminal of the main controller 200 is connected to the first optical transmit module 104; the second light receiving module 107 is connected with a second input end of the main controller 200; the main controller 200 comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module and a solution concentration solving module;
the first light emitting control module is configured to control the first light emitting module 104 to emit a first light;
the refracted light ray receiving module is configured to respond to the first light ray emitted by the first light emitting module 104, and acquire an offset distance D of the first light ray emitted by the first light emitting module 104 on the second light receiving module 107 after being refracted by the solution to be measured in the first right-angle trapezoidal counter bore 101 at the bottom of the concentration measuring instrument;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies:
wherein, thetai≠0；
The solution to be measured concentration solving module is used for obtaining the concentration c of the solution to be measured according to the refractive index of the solution to be measured, the solute information of the solution to be measured and the solvent of the solution to be measured; the solute information comprises a refractive index-concentration dependenceIs a curve of the refractive index-concentration relation, and satisfies the following condition: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve.
It is worth mentioning that, in the present embodiment, the concentration is a mass percentage concentration.
As shown in fig. 3, the geometrical relationship of the first ray refraction phenomenon indicates that:
θr＝θi-Δθ (1)
the triangle geometric relationship shows that:
from refractive index formula
And the formulas (1) to (2) can be known:
optionally, the solute is sugar water; the concentration c of the sugar water meets the following conditions: c-12.276 n2+39.646n-31.04。
The applicant obtained the data in table 1 by experiments on the ratio of sucrose to water.
TABLE 1 data of the relationship between the refractive index and concentration of sugar water at 18 deg.C
| Refractive index | 1.334 | 1.3477 | 1.3573 | 1.3691 | 1.3872 | 1.4025 | 1.4186 | 1.4407 |
| Concentration of | 0％ | 9.10％ | 16.70％ | 23.10％ | 33.30％ | 41.10％ | 50％ | 60％ |
Obtaining the concentration c of the sucrose syrup by curve fitting, wherein the concentration c meets the following requirements: c-12.276 n2+39.646n-31.04。
Optionally, the solute is saline; the concentration c of the solution to be detected meets the following requirements: c-31.77 n2+91.519 n-65.55.
The applicant obtained the data in table 2 by experiments on the salt to water ratio.
TABLE 2 Experimental data of saline refractive index and concentration relationship at 18 deg.C
| Refractive index | 1.334 | 1.3419 | 1.3479 | 1.3624 | 1.3701 | 1.3813 |
| Concentration of | 0％ | 5％ | 9.10％ | 16.70％ | 20％ | 25％ |
By curve fitting, the concentration c of the brine is obtained to satisfy: c-31.77 n2+91.519 n-65.55.
In this embodiment, a mounting portion 108 for mounting the measuring instrument on a wall of a first container 300 for holding the solution to be measured extends outward from the middle or upper portion of the housing 100; the mounting portion 108 is of an inverted L-shape.
In this embodiment, the housing 100 is further provided with a display module 109 for displaying the concentration of the solution, and an input end of the display module 109 is connected to a third output end of the main controller 200. Optionally, the display module 109 is an LCD module; optionally, the display module 109 is a nixie tube.
In this embodiment, an input module 110 for inputting the solute type is further disposed on the housing 100, and a fourth input end of the main controller 200 is connected to the input module 110.
In this example, the solute is a single edible product.
Optionally, the solute category is one of sucrose, salt, glucose and honey.
In this embodiment, the first inclined surface 102 is made of a light-transmitting material, and the second right-angle surface 105 is made of a light-transmitting material.
In this embodiment, the first inclined surface 102 is a planar surface; the second right-angle surface 105 is planar.
Preferably, in this embodiment, the main controller 200 further includes an intrinsic offset distance obtaining module, configured to collect, when the first right-angle trapezoid-shaped counterbore 101 is empty, an intrinsic offset distance D of the first light on the second light receiving module 107 after being refracted0；
The refraction ray receiving module is also used for receiving the intrinsic offset distance D0Correcting the offset distance D acquired when the first right-angle trapezoidal counter bore 101 is loaded with the solution; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
In the technical scheme, the intrinsic offset distance is solved, so that the influence of the refractive index of the material on the refraction of the light path is eliminated or reduced, and the measurement accuracy of the refractive index is improved.
Optionally, the second light receiving module 107 is planar;
in the present embodiment, the second light receiving module 107 includes a photo-resistor array.
Optionally, the position of the second light receiving module 107 receiving the light is obtained according to the array unit with the decreased resistance value of the photoresistor array.
In this embodiment, the main controller 200 further includes: and the solute input acquisition module is used for acquiring the solute information input by the user.
In this embodiment, the main controller 200 further includes a storage module, configured to store at least one solute information for user selection, where the solute information includes a solute name and a multiple coefficient of a refractive index-concentration relation curve corresponding to the solute name.
Optionally, the solute information includes a type of the solute;
in this embodiment, optionally, the solvent is water; optionally, the solute is salt; optionally, the solute is a sugar; it is worth mentioning that in this embodiment, it is not recommended to mix a plurality of substances, so that there are too many variations, i.e. there are many groups of solutions of refractive index and concentration, i.e. salt or sea salt is added to the mixed salt water, sucrose or glucose is added to the mixed sugar water, and honey is added to the mixed honey water.
Preferably, in this embodiment, the solute is a single edible product.
In the practical scene application, a user needs to prepare saline water, the prepared saline water is input into the system, and after the user adds water and salt, the concentration measuring instrument detects the concentration of the prepared saline water and outputs the concentration in a display mode; according to the actually measured concentration of the brine, a user adds water or salt according to the requirement. Optionally, the salt comprises sea salt and iodized salt.
In another scene, a user needs to configure sugar water, the sugar water is input into the system and configured, and after the user adds water and adds sugar, the concentration measuring instrument detects the concentration of the configured sugar water and displays the concentration in real time; adding water and sugar according to the requirement. It is worth mentioning that the sugar itself also includes a plurality of kinds, which the system can refine, for example, glucose, sucrose, maltose, honey, etc.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A household self-made drink concentration measuring instrument is characterized by comprising a shell and a main bodyThe device comprises a controller, a first light emitting module and a second light receiving module, wherein a first right-angle trapezoidal counter bore used for extending into and containing a solution to be detected is arranged at the bottom of a shell; the first light emitting module is arranged in a first cavity part on one side of a first inclined plane of the first right-angle trapezoidal counter bore, and the second light receiving module is arranged in a second cavity part on one side of a second right-angle plane of the first right-angle trapezoidal counter bore; the first light ray emitted by the first light emitting module is parallel to the normal line of the second right-angle surface, and the included angle between the first light ray emitted by the first light emitting module and the normal line of the first inclined surface is a first incident angle thetai(ii) a The distance from the intersection point of the first light ray and the first inclined plane to the second right-angle plane is a first distance L;
the first output end of the main controller is connected with the first light emitting module; the second light receiving module is connected with a second input end of the main controller; the main controller comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module and a solution concentration solving module;
the first light emission control module is used for controlling the first light emission module to emit first light;
the refracted light ray receiving module is used for responding to the first light ray emitted by the first light emitting module, and acquiring the offset distance D of the first light ray emitted by the first light emitting module on the second light receiving module after being refracted by the solution to be measured in the first right-angle trapezoidal counter bore at the bottom of the concentration measuring instrument;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies:
wherein, thetai≠0；
The solution concentration solving module to be detected is used for solving the solution concentration according to the refractive index of the solution to be detected, the solute information of the solution to be detected and the solvent of the solution to be detectedObtaining the concentration c of the solution to be detected; the solute information includes a refractive index-concentration relationship curve that satisfies: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve.
2. The home-made beverage concentration measuring instrument according to claim 1, wherein a mounting portion for mounting the measuring instrument on a wall of a first container for containing the solution to be measured is extended outwardly from a middle portion or an upper portion of the housing; the mounting part is of an inverted L shape.
3. The home-made beverage concentration measuring instrument according to claim 1, wherein a display module for displaying the concentration of the solution is further disposed on the housing, and an input end of the display module is connected to the third output end of the main controller.
4. The home-made beverage concentration measuring instrument according to claim 1, wherein the housing is further provided with an input module for inputting the solute type, and a fourth input end of the main controller is connected to the input module.
5. The home-made beverage concentration measuring instrument of claim 1, wherein the first inclined plane is made of a light-transmitting material, and the second right-angle plane is made of a light-transmitting material.
6. The home-made beverage concentration measuring instrument according to claim 1, wherein the first inclined surface is a flat surface; the second right-angle surface is a plane.
7. The home-made beverage concentration measuring instrument of claim 1, wherein the main controller further comprises an intrinsic offset distance acquisition module for acquiring the first light beam passing through the first right-angled trapezoidal counter bore when the first right-angled trapezoidal counter bore is emptyIntrinsic offset distance D on the second light receiving module after refraction0；
The refraction ray receiving module is also used for receiving the intrinsic offset distance D0Correcting the offset distance D acquired when the first right-angle trapezoid counter bore is loaded with the solution; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
8. The home-made beverage concentration measuring instrument of claim 1, wherein the second light receiving module comprises a photo resistor array.
9. The home-made beverage concentration measuring instrument of claim 1, wherein the main controller further comprises: and the solute input acquisition module is used for acquiring the solute information input by the user.
10. The home-made beverage concentration measuring instrument of claim 9, wherein the main controller further comprises a storage module for storing at least one of the solute information for user selection, the solute information comprising a name of the solute and a plurality of coefficients of a refractive index-concentration relationship curve corresponding to the name of the solute.
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| CN87212066U (en) * | 1987-08-21 | 1988-03-30 | 江苏省丹徒县分析仪器厂 | High-speed liquid density meter |
| US5048952A (en) * | 1988-05-26 | 1991-09-17 | Ngk Spark Plug Co., Ltd. | Liquid mixing ratio sensor |
| CN2078440U (en) * | 1990-06-14 | 1991-06-05 | 中国人民解放军第一八○医院 | Simple refractometer for clinical examination |
| CN1130560C (en) * | 1998-06-29 | 2003-12-10 | 中国科学院福建物质结构研究所 | Method and device for measuring concentration of flowing solution in real-time mode |
| EP1876438A1 (en) * | 2006-07-05 | 2008-01-09 | Dtu | Determining concentration of a substance in aqueous solution by selfreferenced reflection THz spectroscopy |
| CN101706425A (en) * | 2009-11-20 | 2010-05-12 | 南京邮电大学 | Liquid prism refractometer |
| CN103969219B (en) * | 2013-02-01 | 2016-12-28 | 泰科电子(上海)有限公司 | Silicone oil detector and electric power terminal assembly |
| CN103278212B (en) * | 2013-06-15 | 2015-06-17 | 燕宸 | Solution information acquisition device |
| CN104237163A (en) * | 2014-08-21 | 2014-12-24 | 宁波市镇海华日轴承有限公司 | Cutting fluid concentration tester and application method thereof |
| CN104198436B (en) * | 2014-09-17 | 2016-11-09 | 安徽理工大学 | A kind of light-transmissive fluid concentration detection system and detection method |
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Effective date of registration: 20211214 Address after: No. 15068, building B, Shaoxing Wanguo center, 1388 jinkeqiao Avenue, Keqiao District, Shaoxing City, Zhejiang Province, 312000 Patentee after: Shaoxing dongque Textile Co.,Ltd. Address before: 312000 No.62 Jiefang neighborhood committee, Huashe street, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: Shaoxing Keqiao Haoyue Textile Technology Co., Ltd |
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Denomination of invention: A concentration measuring instrument for household self-made drinking products Effective date of registration: 20211224 Granted publication date: 20201201 Pledgee: Keqiao Branch of Bank of China Ltd. Pledgor: Shaoxing dongque Textile Co.,Ltd. Registration number: Y2021330002627 |