TWI780846B

TWI780846B - Can measure the concentration of liquid

Info

Publication number: TWI780846B
Application number: TW110128133A
Authority: TW
Inventors: 林崇睿; 陳俞勲; 顏碩廷
Original assignee: 瑞愛生醫股份有限公司
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-10-11
Also published as: TW202305346A

Abstract

本發明揭露一種可量測液體濃度之稜鏡，包含容置空間、交界面、第一透光面、第二透光面、第三透光面及出光面。容置空間容置液體。交界面形成於容置空間的底面。第一透光面及第二透光面分別形成於容置空間的兩側面。第三透光面及出光面分別相對交界面設置。當第一入射光束入射至稜鏡內部後，射向交界面，並由交界面反射到出光面，由出光面射出稜鏡內部。當第二入射光束入射稜鏡內部後，射向第一透光面，並由第一透光面射出稜鏡內部，入射至容置空間，且穿透容置空間內的液體，再入射至第二透光面，由第二透光面入射稜鏡內部，射向第三透光面，由第三透光面射出稜鏡內部。The present invention discloses a liquid crystal that can measure the concentration of a liquid, which includes an accommodating space, an interface, a first light-transmitting surface, a second light-transmitting surface, a third light-transmitting surface and a light-emitting surface. The accommodation space accommodates liquid. The interface is formed on the bottom surface of the accommodation space. The first light-transmitting surface and the second light-transmitting surface are respectively formed on two sides of the accommodating space. The third light-transmitting surface and the light-emitting surface are set opposite to the interface respectively. When the first incident light beam enters the interior of the 稜鏡, it shoots toward the interface, is reflected by the interface to the light-emitting surface, and exits the interior of the 稜鏡 from the light-emitting surface. After the second incident light beam enters the interior of the sputum, it enters the first light-transmitting surface, and exits the interior of the sputum from the first light-transmitting surface, enters the accommodating space, and penetrates the liquid in the accommodating space, and then enters the The second light-transmitting surface is incident on the interior of the scorpion from the second light-transmitting surface, irradiates to the third light-transmitting surface, and emits from the interior of the scorpion from the third light-transmitting surface.

Description

可量測液體濃度之稜鏡Measuring liquid concentration meter

本發明係有關於一種稜鏡，特別是有關於一種可量測液體濃度之稜鏡。The present invention relates to a squid, in particular to a squid capable of measuring the concentration of a liquid.

溶液係由溶質加溶劑組合而成，溶劑係用於溶解溶質，溶質係加入溶劑中而被稀釋。一般常見的溶劑包含水，溶質包含鹽、糖、顏料、或者其他化學物質。A solution is a combination of a solute and a solvent, the solvent is used to dissolve the solute, and the solute is diluted by adding it to the solvent. Common solvents include water, and solutes include salts, sugars, pigments, or other chemicals.

然而，當溶質溶解在溶劑後，若使用者欲進一步量測溶液的濃度時，則必須透過複雜的儀器設備進行測量，此將造成使用者的不便。However, after the solute is dissolved in the solvent, if the user wants to further measure the concentration of the solution, the measurement must be performed through complicated instruments, which will cause inconvenience to the user.

據此，如何提供一種可量測液體濃度的裝置已成為目前急需研究的課題。Accordingly, how to provide a device capable of measuring liquid concentration has become an urgent research topic.

鑑於上述問題，本發明揭露一種可量測液體濃度之稜鏡，包含容置空間、交界面、第一透光面、第二透光面、第三透光面及出光面。容置空間容置液體。交界面形成於容置空間的底面。第一透光面形成於容置空間的第一側面。第二透光面相對第一透光面形成於容置空間的第二側面。第三透光面相對交界面設置。出光面與交界面對應設置。當第一入射光束入射至稜鏡內部後，第一入射光束射向交界面，並由交界面反射到出光面後，由出光面射出稜鏡內部。當第二入射光束入射稜鏡內部後，第二入射光束射向第一透光面，並由第一透光面射出稜鏡內部後，入射至容置空間，且穿透容置空間內的液體，再入射至第二透光面，由第二透光面入射稜鏡內部後，射向第三透光面，由第三透光面射出稜鏡內部。In view of the above-mentioned problems, the present invention discloses a liquid crystal that can measure the concentration of a liquid, including an accommodating space, an interface, a first light-transmitting surface, a second light-transmitting surface, a third light-transmitting surface, and a light-emitting surface. The accommodation space accommodates liquid. The interface is formed on the bottom surface of the accommodation space. The first light-transmitting surface is formed on the first side of the accommodating space. The second light-transmitting surface is formed on a second side of the accommodating space opposite to the first light-transmitting surface. The third transparent surface is arranged opposite to the interface surface. The light-emitting surface and the interface are set correspondingly. After the first incident light beam is incident into the interior of the 稜鏡, the first incident light beam shoots toward the interface, is reflected by the interface to the light-emitting surface, and then exits the interior of the 稜鏡 from the light-emitting surface. When the second incident light beam enters the inside of the scorpion, the second incident light beam hits the first light-transmitting surface, exits the inside of the scorpion from the first light-transmitting surface, enters the accommodating space, and penetrates the interior of the accommodating space. The liquid then enters the second light-transmitting surface, enters into the interior of the 稜鏡 from the second light-transmitting surface, and then shoots to the third light-transmitting surface, and exits the interior of the 稜珡 from the third light-transmitting surface.

承上所述，本發明可量測液體濃度之稜鏡可同時或者個別檢測光線的折光度與吸光度，結合吸光與折光特性，可對溶液中的溶質進行定量分析，並且無需使用聚光元件作為光源，因而具有簡化光路校正(alignment)的優點。再者，本發明可量測液體濃度之稜鏡無需設置透鏡或目鏡等結構，可使整體結構的體積縮小。此外，本發明可量測液體濃度之稜鏡無需使用濾片或偏極片等結構，可降低生產成本。Based on the above, the present invention can measure the concentration of a liquid by measuring the refraction and absorbance of light at the same time or individually. Combining the characteristics of light absorption and refraction, the solute in the solution can be quantitatively analyzed, and there is no need to use a light-gathering element as a The light source thus has the advantage of simplifying the alignment of the optical path. Furthermore, the present invention can measure the concentration of liquid without any lens or eyepiece, so the volume of the whole structure can be reduced. In addition, the present invention can measure the concentration of the liquid without the use of structures such as filters or polarizers, which can reduce production costs.

請參閱圖1A及圖1B，其係為本發明可量測液體濃度之稜鏡的第一立體圖及第二立體圖。可量測液體濃度之稜鏡1包含容置空間10、第一透光面11、第二透光面12、第三透光面13及出光面14。容置空間10容置液體Q。交界面100形成於容置空間10的底面。第一透光面11形成於容置空間10的第一側面。第二透光面12相對第一透光面11形成於容置空間10的第二側面。第三透光面13相對交界面100設置。出光面14與交界面100對應設置。Please refer to FIG. 1A and FIG. 1B , which are the first perspective view and the second perspective view of the present invention which can measure the concentration of liquid. The device 1 capable of measuring liquid concentration includes an accommodating space 10 , a first light-transmitting surface 11 , a second light-transmitting surface 12 , a third light-transmitting surface 13 and a light-emitting surface 14 . The accommodation space 10 accommodates the liquid Q. The interface 100 is formed on the bottom surface of the accommodation space 10 . The first transparent surface 11 is formed on a first side surface of the accommodating space 10 . The second light-transmitting surface 12 is formed on a second side of the accommodating space 10 opposite to the first light-transmitting surface 11 . The third transparent surface 13 is disposed opposite to the interface surface 100 . The light emitting surface 14 is set corresponding to the interface surface 100 .

請參閱圖1C及圖1D，其係為本發明可量測液體濃度之稜鏡的光線反射示意圖及光線穿透液體示意圖。如圖1C所示，第一光源S1產生的第一入射光束L1入射至稜鏡內部後，第一入射光束L1射向交界面100，並由交界面100反射到出光面14後，由出光面14射出稜鏡內部，並入射到設置於出光面14外部的第一光線感測器D1，藉此量測液體Q的折光度。如圖1D所示，第二光源S2產生的第二入射光束L2入射稜鏡內部後，第二入射光束L2射向第一透光面11，並由第一透光面11射出稜鏡內部後，入射至容置空間10，且穿透容置空間10內的液體Q，再入射至第二透光面12，由第二透光面12入射稜鏡內部後，射向第三透光面13，由第三透光面13射出稜鏡內部，並入射到設置於第三透光面13外部的第二光線感測器D2。液體Q的濃度藉由第一光線感測器D1量測穿出該出光面14的第一入射光束L1計算，液體Q的吸光度藉由第二光線感測器D2量測穿出第三透光面13的第二入射光束D2計算。Please refer to FIG. 1C and FIG. 1D , which are schematic diagrams of light reflection and light penetration into liquid of the present invention which can measure the concentration of liquid. As shown in FIG. 1C, after the first incident light beam L1 generated by the first light source S1 enters the interior of the light source, the first incident light beam L1 is directed towards the interface 100, and is reflected from the interface 100 to the light-emitting surface 14, and then passes through the light-emitting surface 14 is emitted from the inside of the light source, and enters the first light sensor D1 disposed outside the light-emitting surface 14, thereby measuring the refractive index of the liquid Q. As shown in FIG. 1D, after the second incident light beam L2 generated by the second light source S2 enters the interior of the pimple, the second incident light beam L2 is directed toward the first light-transmitting surface 11, and then exits the inside of the piment from the first light-transmitting surface 11. , incident into the accommodating space 10, and penetrate the liquid Q in the accommodating space 10, and then incident on the second light-transmitting surface 12, after the second light-transmitting surface 12 enters into the interior of the shell, it enters the third light-transmitting surface 13 , exits from the third light-transmitting surface 13 to the inside of the light box, and enters the second light sensor D2 disposed outside the third light-transmitting surface 13 . The concentration of the liquid Q is calculated by measuring the first incident light beam L1 passing through the light-emitting surface 14 by the first light sensor D1, and the absorbance of the liquid Q is measured by the second light sensor D2 passing through the third transmitted light. The second incident beam D2 on face 13 is calculated.

承上所述，根據基本光學原理可知，光線進入到不同介質中，光線會產生折射現象，同時也會產生反射，因此，將第一光線感測器D1設置在出光面14的外部，藉由量測接收到反射的第一入射光束L1的光線亮度可計算出液體Q濃度。此外，當光線穿透過液體Q後，由於液體Q會吸收光線能量，使得光線亮度減弱，因此，將第二光線感測器D2設置在第三透光面13的外部，藉由量測接收到第二入射光束L2的光線亮度可計算出液體Q的吸光度。Based on the above, according to the basic optical principle, it can be known that when light enters into different media, the light will be refracted and reflected at the same time. Therefore, the first light sensor D1 is arranged outside the light-emitting surface 14, by The concentration of the liquid Q can be calculated by measuring the brightness of the reflected first incident light beam L1. In addition, when the light passes through the liquid Q, the liquid Q will absorb the energy of the light, so that the brightness of the light will be weakened. Therefore, the second light sensor D2 is arranged outside the third light-transmitting surface 13 to measure and receive The light intensity of the second incident light beam L2 can be used to calculate the absorbance of the liquid Q.

如圖1A及圖1C所示，可量測液體濃度之稜鏡1更包含一入光面15，鄰接交界面100。於本發明之一實施例中，入光面15係垂直相鄰連接交界面100。第一光源S1的第一入射光束L1經由入光面15入射至稜鏡內部，再射向交界面100。As shown in FIG. 1A and FIG. 1C , the liquid concentration measuring device 1 further includes a light incident surface 15 adjacent to the interface 100 . In an embodiment of the present invention, the light incident surface 15 is vertically adjacent to the connection interface 100 . The first incident light beam L1 of the first light source S1 is incident into the interior of the shell through the light incident surface 15 , and then radiates toward the interface 100 .

如圖1B及圖1C所示，第三透光面13係鄰接入光面15。於本發明之一實施例中，第三透光面13與入光面15係垂直鄰接，且第二入射光束L2係自第三透光面13入射稜鏡內部後，再射向第一透光面11。As shown in FIG. 1B and FIG. 1C , the third light-transmitting surface 13 is adjacent to the light-incoming surface 15 . In one embodiment of the present invention, the third light-transmitting surface 13 is vertically adjacent to the light-incident surface 15, and the second incident light beam L2 enters the inside of the light beam from the third light-transmitting surface 13, and then enters the first light-transmitting surface 13. Glossy 11.

如圖1B及圖1C所示，出光面14係鄰接第三透光面13，且出光面14與入光面15分別鄰接於第三透光面13的相對兩側。出光面14與第三透光面13之間具有一夾角θ，且該夾角θ係為鈍角，介於105度至165度之間。於本發明之一較佳實施例中，該夾角θ為135度。As shown in FIG. 1B and FIG. 1C , the light-emitting surface 14 is adjacent to the third light-transmitting surface 13 , and the light-emitting surface 14 and the light-incident surface 15 are respectively adjacent to opposite sides of the third light-transmitting surface 13 . There is an included angle θ between the light-emitting surface 14 and the third light-transmitting surface 13 , and the included angle θ is an obtuse angle ranging from 105 degrees to 165 degrees. In a preferred embodiment of the present invention, the included angle θ is 135 degrees.

請參閱圖1A及圖1D，可量測液體濃度之稜鏡1更包含第一反光面16及第二反光面17。當第二光源S2產生的第二入射光束L2入射稜鏡內部後，第二入射光束L2先射向第一反光面16，並於通過第一反光面16反射後，射向第一透光面11，由第一透光面11射出稜鏡內部後，入射至容置空間10，且穿透容置空間10內的液體Q，再入射至第二透光面12，由第二透光面12入射稜鏡內部後，射向第二反光面17，再通過第二反光面17反射後，射向第三透光面13，再由第三透光面13射出稜鏡內部，並入射到設置於第三透光面13外的第二光線感測器D2。第一反光面16鄰接第一透光面11，並與第一透光面之間具有第一夾角θ1，第一夾角θ1係為銳角，介於15度至75度之間。於本發明之一較佳實施例中，第一夾角θ1較佳為45度。第一反光面16係根據第二入射光束L2入射第三透光面13的角度，以第一夾角θ1設置。第二反光面17鄰接第二透光面12，並與第二透光面12之間具有第二夾角θ2，第二夾角θ2係為銳角，介於15度至75度之間。於本發明之一較佳實施例中，第二夾角θ2較佳為45度。第二反光面17係根據第二入射光束L2入射第一反光面16後反射的角度，以第二夾角θ2設置。Please refer to FIG. 1A and FIG. 1D , the liquid concentration measuring device 1 further includes a first reflective surface 16 and a second reflective surface 17 . When the second incident light beam L2 generated by the second light source S2 enters the interior of the light source, the second incident light beam L2 first strikes the first reflective surface 16, and after being reflected by the first reflective surface 16, it strikes the first light-transmitting surface 11. After exiting from the first light-transmitting surface 11, it enters the accommodating space 10, penetrates the liquid Q in the accommodating space 10, and then enters the second light-transmitting surface 12. From the second light-transmitting surface 12 is incident on the interior of the scorpion, and then shoots to the second reflective surface 17, and then is reflected by the second reflective surface 17, and then shoots to the third light-transmitting surface 13, and then is emitted from the third light-transmitting surface 13 to the inside of the scorpion, and enters the The second light sensor D2 is disposed outside the third transparent surface 13 . The first reflective surface 16 is adjacent to the first light-transmitting surface 11 and has a first included angle θ1 with the first light-transmitting surface. The first included angle θ1 is an acute angle between 15 degrees and 75 degrees. In a preferred embodiment of the present invention, the first included angle θ1 is preferably 45 degrees. The first reflective surface 16 is arranged at a first included angle θ1 according to the angle at which the second incident light beam L2 is incident on the third light-transmitting surface 13 . The second reflective surface 17 is adjacent to the second light-transmitting surface 12 and has a second included angle θ2 with the second light-transmitting surface 12 . The second included angle θ2 is an acute angle between 15 degrees and 75 degrees. In a preferred embodiment of the present invention, the second included angle θ2 is preferably 45 degrees. The second reflective surface 17 is set at a second included angle θ2 according to the angle at which the second incident light beam L2 is incident on the first reflective surface 16 and then reflected.

請參閱圖2，其係為本發明可量測液體濃度之稜鏡設至於外殼中的立體圖。在本發明之實施例中，第一反光面16及第二反光面17係分別為一三角塊的形狀設置圍繞於容置空間10周圍的兩側面，並與容置空間10的交界面100（底面）形成該容置空間10。需注意的是，雖然容置空間10在本發明的圖式中並無法以第一三角塊、第二三角塊以及另一凸塊圍繞形成封閉的空間，但事實上可量測液體濃度之稜鏡1更包含一外殼H，可量測液體濃度之稜鏡1設置於外殼H的容置空間中，且入光面15係與外殼H容置空間內的壁面貼合，因而使得可量測液體濃度之稜鏡1的容置空間10圍繞成一封閉空間，以容置液體Q。Please refer to FIG. 2 , which is a three-dimensional view of the present invention which can measure the liquid concentration and is installed in the casing. In the embodiment of the present invention, the first reflective surface 16 and the second reflective surface 17 are respectively in the shape of a triangular block, which are arranged on both sides around the accommodation space 10, and are connected to the interface 100 of the accommodation space 10 ( bottom surface) forms the accommodating space 10 . It should be noted that although the accommodating space 10 cannot be surrounded by the first triangular block, the second triangular block, and another protruding block to form a closed space in the drawings of the present invention, in fact, the edge of the liquid concentration can be measured. The mirror 1 further includes a housing H, and the liquid concentration measuring device 1 is arranged in the housing space of the housing H, and the light incident surface 15 is attached to the wall surface in the housing space of the housing H, thus making it possible to measure The accommodating space 10 of the concentration of the liquid Q1 is surrounded to form a closed space for accommodating the liquid Q.

請參閱圖3A至圖3C，其係為本發明可量測液體濃度之稜鏡的反射光線示意圖。如圖所示，出光面14設置在相對入光面15的一側，由交界面100反射的第一入射光束L1通過出光面14後，入射到第一光線感測器D1。由光學原理可知，欲量測通過出光面14的第一入射光束L1，必須針對出光面14的設置角度及面積進行配置。進一步而言，根據斯涅爾定律（Snell's Law），已知可量測液體濃度之稜鏡1的介質折射率以及第一入射光束L1入射到交界面100的入射角，可根據第一入射光束L1在通過不同介質折射率（不同溶液）的交界面100時所產生的反射角度範圍計算出溶液Q的介質折射率。而溶液Q折射率越大，被折射的光線越多，相對的反射光越少，第一光線感測器D1所接收到第一入射光束L1的反射光線越少（如圖3B及圖3C所示），因此，可進一步根據第一入射光束L1入射到不同溶液Q之介質折射率的範圍，所對應產生的反射角度範圍，定義、配置出光面14的預設傾斜角度θ及面積，亦即，出光面14的預設傾斜角度θ以及預設面積係根據第一入射光束L1從交界面100所產生的反射角度設置，且預設傾斜角度θ係以交界面100為基準角度設置。此外，由於溶液Q中溶質的多寡會造成溶液Q密度的不同，而溶液Q密度不同，光線產生的折射率也會不同，因此藉由量測光線進入溶液Q後的折射率可計算該溶液Q中的溶質含量，進一步計算出溶液Q濃度。在本較佳實施例中，第一光源S1係設置於入光面15的中心的法線上，以使第一入射光束L1能平均入射入光面15。而第一光線感測器D1係設置在出光面14中心的法線上，藉此能平均接收第一入射光束L1。Please refer to FIG. 3A to FIG. 3C , which are schematic diagrams of reflected light of the present invention which can measure the concentration of liquid. As shown in the figure, the light emitting surface 14 is disposed on a side opposite to the light incident surface 15 , and the first incident light beam L1 reflected by the interface 100 passes through the light emitting surface 14 and enters the first light sensor D1 . According to the principle of optics, to measure the first incident light beam L1 passing through the light-emitting surface 14 , configuration must be made according to the setting angle and area of the light-emitting surface 14 . Further, according to Snell's Law, the refractive index of the medium that can measure the concentration of the liquid and the incident angle of the first incident light beam L1 incident on the interface 100 are known, according to the first incident light beam L1 The medium refractive index of the solution Q is calculated from the range of reflection angles generated when L1 passes through the interface 100 with different medium refractive indices (different solutions). The larger the refractive index of the solution Q is, the more light is refracted, and the relatively less reflected light is, and the reflected light of the first incident light beam L1 received by the first light sensor D1 is less (as shown in FIG. 3B and FIG. 3C ). shown), therefore, the preset inclination angle θ and area of the light-emitting surface 14 can be defined and configured according to the range of the first incident light beam L1 incident on the medium refractive index range of different solutions Q, that is, The preset inclination angle θ and the preset area of the light-emitting surface 14 are set according to the reflection angle of the first incident light beam L1 from the interface 100 , and the preset inclination angle θ is set with the interface 100 as a reference angle. In addition, because the amount of solute in the solution Q will cause the density of the solution Q to be different, and the density of the solution Q is different, the refractive index of the light will be different, so the solution Q can be calculated by measuring the refractive index of the light entering the solution Q The solute content in the solution, and further calculate the solution Q concentration. In this preferred embodiment, the first light source S1 is disposed on the normal line of the center of the light-incident surface 15 , so that the first incident light beam L1 can incident on the light-incident surface 15 evenly. The first light sensor D1 is disposed on the normal line of the center of the light emitting surface 14 , so as to receive the first incident light beam L1 evenly.

請參閱圖4A至圖4D，其係為本發明第一入射光束入射到可量測液體濃度之稜鏡的示意圖。實際上，為了要量測第一入射光束L1入射到稜鏡後的反射光，以及量測第二光束L2穿透過液體後的光線，於本發明之實施例中，第一光源S1及第二光源S2包含鹵素燈、氣體燈、雷射、LED、或者其他發光元件。而針對第一入射光束L1入射到稜鏡後的反射光，由於使用的該些光源所產生的光束係向外360度發出，而對於前半部入射到稜鏡的光線而言，可將其區分為如圖4A至圖4D四個部分的光線。如圖4A所示，當第一入射光束L1入射到稜鏡的交界面100後，其反射光係朝向出光面14射出，並入射到第一光線感測器D1。如圖4B所示，當第一入射光束L1入射到稜鏡後，由於在入射方向上並無可使其產生反射的表面或交界面100，因此，其入射光束係直接朝向稜鏡的外部射出。如圖4C所示，當第一入射光束L1入射到稜鏡的出光面14後，由於第一入射光束L1的入射角度正好與出光面14形成全反射的角度，因而使得反射的第一入射光束L1朝向稜鏡的其它方向射入，並朝向稜鏡的外部射出。如圖4D所示，當第一入射光束L1入射到稜鏡的第三透光面13後，其產生的反射光角度並未朝向出光面14射出，而是朝向稜鏡的其它方向向外射出。據此，設置於出光面14外的第一光線感測器D1僅接收入射到稜鏡交界面100後的反射光。Please refer to FIG. 4A to FIG. 4D , which are schematic diagrams of the first incident light beam incident on the liquid concentration measuring chamber of the present invention. In fact, in order to measure the reflected light of the first incident light beam L1 incident on the liquid, and to measure the light of the second light beam L2 passing through the liquid, in the embodiment of the present invention, the first light source S1 and the second light source S1 The light source S2 includes a halogen lamp, a gas lamp, a laser, an LED, or other light emitting elements. As for the reflected light after the first incident light beam L1 is incident on the light beam, the light beams generated by the light sources used are emitted 360 degrees outward, and for the first half of the light incident on the light beam, it can be distinguished It is the light rays of four parts as shown in Fig. 4A to Fig. 4D. As shown in FIG. 4A , when the first incident light beam L1 is incident on the interface 100 of the light beam, the reflected light is emitted toward the light-emitting surface 14 and enters the first light sensor D1 . As shown in Figure 4B, when the first incident light beam L1 is incident on the 稜鏡, since there is no surface or interface 100 that can cause reflection in the incident direction, the incident light beam is directly emitted toward the outside of the 稜鏡. As shown in FIG. 4C, when the first incident light beam L1 is incident on the light-emitting surface 14 of 稜鏡, since the incident angle of the first incident light beam L1 just forms an angle of total reflection with the light-emitting surface 14, the reflected first incident light beam L1 shoots in towards the other direction of the 稜鏡 and exits towards the outside of the 稜鏡. As shown in Figure 4D, when the first incident light beam L1 is incident on the third light-transmitting surface 13 of the light beam, the angle of reflected light generated by it is not emitted toward the light-emitting surface 14, but is emitted toward other directions of the light beam. . Accordingly, the first light sensor D1 disposed outside the light-emitting surface 14 only receives the reflected light incident on the light-emitting interface 100 .

請參閱圖5，其係為本發明溶液濃度與吸光度的關係示意圖。由於溶液Q中溶質的多寡也會造成吸光度的差異，因此，藉由量測溶液Q的吸光度可計算該溶液Q中的溶質含量。根據比爾-朗伯定理(Beer–Lambert law)，當一平行光線垂直入射樣品後，樣品的吸光物質吸收部分光子能量，使透射光強度減弱，其中被吸收的能量(A)與樣品吸收係數(α)、光程(樣品長度)(L)、濃度(c)三著呈現正相關，表示方法如下:

Please refer to FIG. 5 , which is a schematic diagram of the relationship between the concentration and absorbance of the solution of the present invention. Since the amount of solute in the solution Q will also cause the difference in absorbance, the solute content in the solution Q can be calculated by measuring the absorbance of the solution Q. According to the Beer–Lambert law, when a parallel light is incident on the sample vertically, the light-absorbing substance of the sample absorbs part of the photon energy, which weakens the intensity of the transmitted light. The absorbed energy (A) is related to the sample absorption coefficient ( α), optical path (sample length) (L), and concentration (c) are positively correlated, expressed as follows:

被吸收的能量可視為吸收度(A)，因此當光線穿過樣品部分能量被樣品吸收，剩下的光線穿透該樣品，因此可以從入射光(I ₀)與透射光(I)的能量差來計算出該樣品吸收度，其吸收度定義如下

The absorbed energy can be regarded as the absorbance (A), so when the light passes through the sample, part of the energy is absorbed by the sample, and the rest of the light passes through the sample, so the energy of the incident light (I ₀ ) and the transmitted light (I) can be The absorbance of the sample is calculated by the difference, and the absorbance is defined as follows

再者，第二入射光束L2入射至第一反光面16後，經過第一反光面16反射後透射至溶液Q，溶液Q吸收部分光子能量，使透射光強度減弱，再經過第二反光面17反射到第二光線感測器D2。溶液Q濃度越高，被吸收的光線能量越多，因此透射光強度越弱，從光源強度與透射光的比例可得知吸收度，進而計算出溶液Q濃度。Moreover, after the second incident light beam L2 is incident on the first reflective surface 16, it is reflected by the first reflective surface 16 and then transmitted to the solution Q. The solution Q absorbs part of the photon energy to weaken the intensity of the transmitted light, and then passes through the second reflective surface 17. Reflected to the second light sensor D2. The higher the concentration of solution Q, the more light energy is absorbed, so the intensity of transmitted light is weaker. The absorbance can be obtained from the ratio of light source intensity to transmitted light, and then the concentration of solution Q can be calculated.

於本發明之一實施例中，可量測液體濃度之稜鏡1材質包含玻璃、塑膠、或者其他可透光材料。稜鏡的交界面100、第一透光面11、第二透光面12、第三透光面13、出光面14、入光面15、第一反光面16及第二反光面17可為光滑面、粗糙面、鍍膜面、遮擋面、或者其他處理方式之表面。稜鏡加工的方式包含研磨、膠合、模造、射出、或者其他加工方式。In an embodiment of the present invention, the material of the liquid 1 that can measure the liquid concentration includes glass, plastic, or other transparent materials. The interface 100, the first light-transmitting surface 11, the second light-transmitting surface 12, the third light-transmitting surface 13, the light-emitting surface 14, the light-incident surface 15, the first light-reflecting surface 16, and the second light-reflecting surface 17 can be Smooth surface, rough surface, coated surface, shielded surface, or surface treated by other methods. The processing methods include grinding, gluing, molding, injection, or other processing methods.

於本發明之一實施例中，第一光線感測器D1及第二光線感測器D2包含光偵測二極體、光偵測二極體陣列、光譜儀、CCD感測器、或者其他感光元件。In one embodiment of the present invention, the first light sensor D1 and the second light sensor D2 include a photodetector diode, a photodetector diode array, a spectrometer, a CCD sensor, or other photosensitive element.

綜上所述，本發明可量測液體濃度之稜鏡可同時或者個別檢測光線的折光度與吸光度，結合吸光與折光特性，可對溶液中的溶質進行定量分析，並且無需使用聚光元件作為光源，因而具有簡化光路校正(alignment)的優點。再者，本發明可量測液體濃度之稜鏡無需設置透鏡或目鏡等結構，可使整體結構的體積縮小。此外，本發明可量測液體濃度之稜鏡無需使用濾片或偏極片等結構，可降低生產成本。In summary, the present invention can measure the concentration of a liquid by measuring the refraction and absorbance of light at the same time or individually. Combining the characteristics of light absorption and refraction, the solute in the solution can be quantitatively analyzed, and there is no need to use a light-gathering element as a The light source thus has the advantage of simplifying the alignment of the optical path. Furthermore, the present invention can measure the concentration of liquid without any lens or eyepiece, so the volume of the whole structure can be reduced. In addition, the present invention can measure the concentration of the liquid without the use of structures such as filters or polarizers, which can reduce production costs.

1:可量測液體濃度之稜鏡 10:容置空間 11:第一透光面 12:第二透光面 13:第三透光面 14:出光面 15:入光面 16:第一反光面 17:第二反光面 Q:液體 100:交界面 S1:第一光源 S2:第二光源 L1:第一入射光束 L2:第二射光束 D1:第一光線感測器 D2:第二光線感測器 H:外殼 θ:預設傾斜角度 θ1:第一夾角 θ2:第二夾角1: It can measure the concentration of liquid 10:Accommodating space 11: The first light-transmitting surface 12: The second transparent surface 13: The third transparent surface 14: Light-emitting surface 15: light incident surface 16: The first reflective surface 17: Second reflective surface Q: liquid 100: interface S1: the first light source S2: Second light source L1: first incident beam L2: second beam D1: The first light sensor D2: Second light sensor H: shell θ: preset tilt angle θ1: the first included angle θ2: second angle

圖1A及圖1B係為本發明可量測液體濃度之稜鏡的第一立體圖及第二立體圖；圖1C及圖1D係為本發明可量測液體濃度之稜鏡的光線反射示意圖及光線穿透液體示意圖；圖2係為本發明可量測液體濃度之稜鏡設至於外殼中的立體圖；圖3A至圖3C係為本發明可量測液體濃度之稜鏡的反射光線示意圖；圖4A至圖4D係為本發明第一入射光束入射到可量測液體濃度之稜鏡的示意圖；以及圖5係為本發明溶液濃度與吸光度的關係示意圖。 Fig. 1A and Fig. 1B are the first perspective view and the second perspective view of the present invention which can measure the concentration of liquid; Fig. 1C and Fig. 1D are schematic diagrams of light reflection and light penetration into liquid of the present invention which can measure the concentration of liquid; Fig. 2 is a three-dimensional view of the present invention which can measure the liquid concentration and is installed in the casing; 3A to 3C are schematic diagrams of the reflected light of the present invention which can measure the concentration of liquid; 4A to 4D are schematic diagrams of the first incident beam of the present invention incident on the liquid concentration can be measured; and Fig. 5 is a schematic diagram of the relationship between solution concentration and absorbance of the present invention.

1:可量測液體濃度之稜鏡 1: It can measure the concentration of liquid

10:容置空間 10:Accommodating space

11:第一透光面 11: The first light-transmitting surface

12:第二透光面 12: The second transparent surface

15:入光面 15: light incident surface

16:第一反光面 16: The first reflective surface

17:第二反光面 17: Second reflective surface

100:交界面 100: interface

Claims

一種可量測液體濃度之稜鏡，包含：一容置空間，容置一液體；一交界面，形成於該容置空間之一底面；一第一透光面，形成於該容置空間之一第一側面；一第二透光面，相對該第一透光面形成於該容置空間之一第二側面；一第三透光面，相對該交界面設置；以及一出光面，與該交界面對應設置；其中當一第一入射光束入射至該稜鏡內部後，該第一入射光束射向該交界面，並由該交界面反射到該出光面後，由該出光面射出該稜鏡內部；其中當一第二入射光束入射該稜鏡內部後，該第二入射光束射向該第一透光面，並由該第一透光面射出該稜鏡內部後，入射至該容置空間，且穿透該容置空間內之該液體，再入射至該第二透光面，由該第二透光面入射該稜鏡內部後，射向該第三透光面，由該第三透光面射出該稜鏡內部。 A tester for measuring the concentration of a liquid, comprising: a containing space for containing a liquid; an interface formed on a bottom surface of the accommodating space; a first light-transmitting surface formed on a first side of the accommodating space; a second light-transmitting surface, opposite to the first light-transmitting surface, formed on a second side of the accommodating space; a third light-transmitting surface disposed opposite to the interface; and A light-emitting surface is set correspondingly to the interface; Wherein, when a first incident light beam is incident into the inside of the shell, the first incident light beam is directed to the interface, and after being reflected from the interface to the light-emitting surface, it is emitted from the light-emitting surface to the inside of the shell; Wherein, when a second incident light beam enters the inside of the sputum, the second incident light beam is incident on the first light-transmitting surface, and is emitted from the first light-transmitting surface to the inside of the sputum, and enters the accommodating space, And the liquid that penetrates the accommodating space is incident on the second light-transmitting surface, and after entering the inside of the sputum from the second light-transmitting surface, it shoots to the third light-transmitting surface, and from the third light-transmitting surface The glossy side shoots out of the inside of the scorpion.

如請求項1所述之可量測液體濃度之稜鏡，更包含：一入光面，鄰接該交界面；其中該第一入射光束係自該入光面入射至該稜鏡內部，再射向該交界面。 The liquid concentration-measurable device described in claim 1 further includes: A light-incident surface is adjacent to the interface; wherein the first incident light beam is incident from the light-incident surface into the interior of the sputum, and then irradiates to the interface.

如請求項2所述之可量測液體濃度之稜鏡，其中該入光面係與該交界面垂直。According to claim 2, the liquid concentration can be measured, wherein the light-incident surface is perpendicular to the interface.

如請求項2所述之可量測液體濃度之稜鏡，其中該第三透光面係鄰接該入光面，且該第二入射光束係自該第三透光面入射該稜鏡內部，再射向該第一透光面。The liquid concentration-measurable liquid crystal according to claim 2, wherein the third light-transmitting surface is adjacent to the light-incident surface, and the second incident light beam enters the inside of the light-emitting liquid from the third light-transmitting surface, Then radiate toward the first light-transmitting surface.

如請求項4所述之可量測液體濃度之稜鏡，其中該第三透光面係與該入光面垂直。According to claim 4, the liquid concentration measuring device, wherein the third light-transmitting surface is perpendicular to the light-incident surface.

如請求項4所述之可量測液體濃度之稜鏡，其中該出光面係鄰接該第三透光面，且該出光面與該入光面分別鄰接於該第三透光面的相對兩側。According to claim 4, which can measure liquid concentration, wherein the light-emitting surface is adjacent to the third light-transmitting surface, and the light-emitting surface and the light-incident surface are respectively adjacent to the opposite two sides of the third light-transmitting surface side.

如請求項6所述之可量測液體濃度之稜鏡，其中該出光面與該第三透光面之間具有一夾角，且該夾角介於105度至165度之間。The liquid concentration measuring device according to Claim 6, wherein there is an included angle between the light-emitting surface and the third light-transmitting surface, and the included angle is between 105 degrees and 165 degrees.

如請求項6所述之可量測液體濃度之稜鏡，更包含：一第一反光面，鄰接該第一透光面；一第二反光面，鄰接該第二透光面；其中，當該第二入射光束入射該稜鏡內部後，該第二入射光束先射向該第一反光面，且通過該第一反光面反射後，射向該第一透光面，並由該第一透光面射出該稜鏡內部後，入射至該容置空間，且穿透該容置空間內之該液體，再入射至該第二透光面，由該第二透光面入射該稜鏡內部後，先射向該第二反光面，且通過該第二反光面反射後，射向該第三透光面，再由該第三透光面射出該稜鏡內部。 As stated in claim 6, the liquid concentration-measurable liquid crystal further includes: a first reflective surface adjacent to the first light-transmitting surface; a second reflective surface adjacent to the second light-transmitting surface; Wherein, when the second incident light beam enters the interior of the light beam, the second incident light beam first shoots to the first reflective surface, and after being reflected by the first reflective surface, it shoots to the first light-transmitting surface, and is transmitted by After the first light-transmitting surface is emitted from the inside of the shell, it enters the accommodating space, and penetrates the liquid in the accommodating space, and then enters the second light-transmitting surface, and enters from the second light-transmitting surface. After the interior of the phoenix, it first radiates to the second reflective surface, and after being reflected by the second reflective surface, it radiates to the third light-transmitting surface, and then emits out of the phoenix from the third light-transmitting surface.

如請求項8所述之可量測液體濃度之稜鏡，其中該第一反光面與該第一透光面之間具有一第一夾角，且該第一夾角介於15度至75度之間。The liquid concentration measuring device according to claim 8, wherein there is a first included angle between the first reflective surface and the first light-transmitting surface, and the first included angle is between 15 degrees and 75 degrees between.

如請求項8所述之可量測液體濃度之稜鏡，其中該第二反光面與該第二透光面之間具有一第二夾角，且該第二夾角介於15度至75度之間。The liquid concentration measuring device according to claim 8, wherein there is a second included angle between the second reflective surface and the second light-transmitting surface, and the second included angle is between 15 degrees and 75 degrees between.