1290481 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種圓形薄膜狀磁性液滴之分離方法，特別 是指利用施加磁場而對一圓形薄膜狀磁性液滴之分離方法，其 兼具可用非接觸方式來分離微小液滴、可導引外圍液滴向外輕 射狀移動與可應用於微量檢驗、藝術攝影與教學實驗之優點及 功效。 【先前技術】 傳統之微液滴之分離方式，大多採接觸式之沾取(例如用 探針之微溝上之毛細現象）或吸取（例如微針筒之真空抽吸再 注射出），均屬於接觸式之作法。尺寸越小的液滴，難度越高。 其次，若是要將小於直徑為數百至數千微米以下之液滴_ 次分離成數個（例如七個），在實務上也是相當困難。因此，在 有些特殊之場合，例如微量液滴（或檢體)之檢驗，若能將它分 離成多個，則可分別進行不同之檢驗。 另外，磁性液體(magnetic fluids 或 ferr〇fluids)從 1906年代起已被合成出並用於許多產業上，但是，應用的領 域皆為工程應用，諸如硬碟之旋轉供液、音響用之揚聲器 (speakers)、散熱機構與流量場控制等，其他亦有於光學機 構(例如：光柵）等之研究。 因此，利用磁性液體之特性來進行微量液滴之分離，是一 全新之研究領域。 Ϊ290481 【發明内容】 本發明之主要目的，在於提供一種圓形薄膜狀磁性液滴之 分離方法，其可用非麵方絲分離微小液滴。 本發明之次一目的，在於提供一種圓形薄膜狀磁性液滴之 離方法，其可導引外圍液滴向外輻射狀移動。 本發明之又一目的，在於提供一種圓形薄膜狀磁性液滴之 刀離方法，其可應用於微量檢驗、藝術攝影與教學實驗。 本發明係提供一種圓形薄膜狀磁性液滴之分離方法，其包 括下列步驟： 一 ·準備步驟：準備一水平承載片、一磁場產生裝置，以 及一電源供應器；該磁場產生裝置具有一上線圈、一 下線圈及一介於該上線圈與該下線圈間之容納空間， 該水平承載片係置於該容納空間中；該水平承載片係 承載一圓形薄膜狀之磁性液滴，其初始直徑係介於 微米至1600微米，其初始厚度係小於該初始直徑之 1/5 ； 二·施加磁場步驟··該磁場產生裝置之上線圈與下線圈間 產生一預定之磁場，該磁場係大體上垂直該磁性液滴 ，·則該水平承載片上之磁性液滴係隨著磁場強度之辦 曰 強而分裂成至少兩個彼此分離之磁性液滴； 二·完成步驟··得到至少兩個彼此分離之磁性液滴。 本發明之上述目的與優點，不難從下述所選用實施例之詳 6 1290481 細說明與附圖中，獲得深入瞭解。 兹以下列實施例並配合圖式詳細說明本發明於後·· 【實施方式】 參閱第一及第二圖，本發明係為一種圓形薄膜狀磁性液滴 之分離方法，其包括下列步驟：一、準備步驟11、二、施加 磁場步驟12，以及三、完成步驟13。 關於該準備步驟11 ;準備一水平承載片20、一磁場產生 裝置30、一電源供應器40 ;該磁場產生裝置30具有一上線圈 31、一下線圈32，以及一介於該上線圈31與該下線圈32間 之容納空間33，該水平承載片20係置於該容納空間33中； 該水平承載片20係承載一圓形薄膜狀磁性液滴21A(參閱第三 A及第三B圖），其初始直徑dl係介於300微米至1600微米， 其初始厚度hi係小於該初始直徑dl之1/5。 而有關此施加磁場步驟12 :該磁場產生裝置30之上線圈 31與下線圈32間產生一預定(例如逐漸增強或瞬間開關）之磁 場’該磁場係大體上垂直該磁性液滴21A ;則該水平承載片20 上之磁性液滴21A係隨者磁場而分裂成至少兩個彼此分離之 磁性液滴21B(如第五B圖所示）。 最後則是完成步驟13 :得到至少兩個彼此分離之磁性液 滴 21B。 當然，該圓形薄膜狀之磁性液滴21A係可為單純之磁性液 體，或是一工作液體與一磁性液體之混合液，且該工作液體係 1290481 選自生醫檢體、化學檢體、顏料其中之一。 一在上述之過程中，本發明是利用一影像擷取装置5〇(如第 圖所示）來拍照記錄，關於本發明之原理，請參閲第二A 第三B、第四a、第四B、第五A及第五B圖說明如下： 。，如第三A及三B圖所示’在初始狀態時，無任何磁場，該 圓形薄膜狀之磁性液滴21A在該水平承載片2〇上呈一平坦之 圓形薄膜。 當磁場逐漸加強，由於該磁性液滴21A内部含有眾多之卉 米大小之磁性顆粒’受到磁力線通過時，會有順著磁力線方^ 集中之傾向，但-方面又受到液體之表面張力與地心重力之影 響，所以會先形成中央凸起區Z1及外圍凸起區Z2，其間有一 變薄的連接區Z3，但尚未斷開，如第四A及第四β圖所示。 當磁場逐漸加強至某-程度時，^以使該中央凸起區ζι 及該外圍凸_ Z2分離，又受難錄力之影響，所以會形 成兩個彼此分離之磁性液滴21B，如第五A及五B圖所示。 同理，若磁場再繼續增強，則會形成如第六圖所示之分裂 狀態，一個位於中央，另外六個在外圍，相當於是分裂成七個 彼此分離之磁性液滴21C。 凊參閱第七A、第七B、第七〇第七β、第七e、第七f、 第七G、第七Η及第七I圖，其係當初始直徑以為丨_微米， 磁場強度逐漸增強至584高斯時，時間分別在第〇秒、第丨秒、 1290481 3 1·丨5秒、第2秒、第3秒第6秒第8秒第秒及第 私所°己錄之景彡像。由此可看出，該磁性液滴最後分裂成數 彼此刀離之磁性液滴’且最外圈之磁性液滴有微量向外移 動之傾向。 此外本發明之預定磁場，也可改用瞬間開關之磁場型態 (類似-脈衝狀）’即磁場強度為瞬間聊高斯，並選用四個初 始直徑dl分別為400微米、800微米、1200微米、及1600微 ，之磁性液滴，其實驗絲請參閱第人A、第人B、第八C及 第八D圖’且其拍攝時間分別為第3G秒、第6G秒、第25秒 及第6G fy之H由此可看^，當初始直徑較大時，較易分 離’所以分離出之數量較多。且外圍之磁性液滴有被導引而向 外移動之傾向。 本發明可應用之產業很多，兹舉下列幾例說明： [a] 應用於微量檢驗：在有些場合中，假設某些不受磁性 液體影響之微小待酿滴無法分離或難时離時，則可加入適 里之磁性液體’使其混合成一圓形薄膜狀之磁性液滴，即可利 用本發明進行分離，例如分離成七個獨立之液滴，即可進行七 種不同之微量檢驗。 [b] 應用於藝術攝影：當該圓形薄膜狀磁性液滴在逐漸分 離之過程中，會形成許多具有獨特美感之晝面，例如第七B至 第七I圖，均具有高度藝術美感。 1290481 W應用於教學實驗：在傳統物理學中，較常見的是液滴 與另一液滴接觸後能因表面張力之影響而合―，但不易分離。 傳統以外力非接觸式之分離液滴之方式主要是應用重:或離 心力，但本發明則提供利用磁力之方式來分離。 綜上所述，本發明之優點及功效可歸納為： [1 ]可用非接觸方式來分離微小朗。本發鴨利用磁力 ♦ _該__狀磁性液滴分離成至少_，其_非接觸之 鲁 方式來分離。 [2] 可導引外圍液滴向外輻射狀移動。當本發明之磁 度在某-範圍時，其;UX使較賴之已分離液滴再向外移動， 因此，具有導引之功能。 [3] 可應用於微量檢驗、藝術攝影與教學實驗。本發明不 僅可應驗微量檢驗，射應麟藝術攝影與鮮實驗上，因 此’在產業上之利用性無庸置疑。 籲以上僅是藉由健實施解細制本㈣，對於該實施例 ' 所做的任何鮮修轉變化，料麟本㈣之精__。 ‘ 由以上詳細，可使熟知本項祕者_树明的確可 達成前述目的，實已符合專利法之規定，爰提出發明專利申靖。 【圖式簡單說明】 第-圖係本發明之分離松之流程圖 l29〇48i 第二圖係本發明之實驗設備之系統架構示意圖 第三A及第三B圖係本發明之磁性液滴在初始狀態之外觀 示意圖及剖視示意圖 第四A及第四B圖係本發明之磁性液滴在施加少量磁場後 之外親不意圖及剖視不意圖 第五A及第五B圖係本發明之磁性液滴在施加足量磁場後 之外觀示意圖及剖視示意圖 第六圖係本發明之磁性液滴分離成七個後之示意圖 第七A、第七B、第七C、第七D、第七E、第七F、第七 G、第七Η及第七I圖係本發明採用逐漸增強磁場之方式在不 同時間之實際影像圖 第八A、第八Β、第八C及第八D圖係本發明中採用瞬間 磁場對不同尺寸液滴產生之影響之實際影像圖 【主要元件符號說明】 11準備步驟 12施加磁場步驟 13完成步驟 20水平承載片 21A、21B、21C磁性液滴 30磁場產生裝置 31上線圈 32下線圈 33容納空間 40電源供應器 50影像擷取裝置 dl初始直徑 hi初始厚度 Z1中央凸起區 Z2外圍凸起區 Z3連接區 111290481 IX. Description of the Invention: [Technical Field] The present invention relates to a method for separating a circular film-like magnetic droplet, and more particularly to a method for separating a circular film-like magnetic droplet by applying a magnetic field, It can also be used to separate small droplets in a non-contact manner, which can guide the peripheral droplets to move outwards and lightly and can be applied to micro-tests, art photography and teaching experiments. [Prior Art] Conventional micro-droplet separation methods, most of which are contact-type (for example, capillary phenomenon on the microchannel of the probe) or suction (for example, vacuum suction and re-injection of the micro-needle) are all Contact method. The smaller the size, the higher the difficulty. Secondly, it is practically difficult to separate droplets smaller than a diameter of several hundreds to several thousands of micrometers into several (for example, seven). Therefore, in some special cases, such as the inspection of trace droplets (or specimens), if it can be separated into multiples, different tests can be performed separately. In addition, magnetic fluids or ferr〇fluids have been synthesized and used in many industries since the 1906s, but the fields of application are engineering applications, such as rotating liquid supply for hard disks and speakers for audio (speakers). ), heat dissipation mechanism and flow field control, etc., and other research on optical mechanisms (such as gratings). Therefore, the use of the properties of magnetic fluids for the separation of trace droplets is a new field of research. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a method for separating a circular film-like magnetic droplet which can separate minute droplets by a non-faceted filament. A second object of the present invention is to provide a method of separating a circular film-like magnetic droplet that directs the peripheral droplets to move radially outward. It is still another object of the present invention to provide a knife-off method for a circular film-like magnetic droplet which can be applied to micro-inspection, art photography and teaching experiments. The present invention provides a method for separating a circular film-like magnetic droplet, comprising the following steps: 1. preparing a step: preparing a horizontal carrier, a magnetic field generating device, and a power supply; the magnetic field generating device has an upper a coil, a lower coil and an accommodation space between the upper coil and the lower coil, the horizontal carrier sheet being placed in the receiving space; the horizontal carrier sheet carrying a circular film-shaped magnetic droplet, the initial diameter thereof The system is between micrometers and 1600 micrometers, and its initial thickness is less than 1/5 of the initial diameter. 2. Magnetic field application step. The magnetic field generating device generates a predetermined magnetic field between the coil and the lower coil. Vertically the magnetic droplets, the magnetic droplets on the horizontal carrier sheet are split into at least two magnetic droplets separated from each other as the strength of the magnetic field is strong; 2. Complete the steps · obtain at least two separate from each other Magnetic droplets. The above objects and advantages of the present invention are not limited by the detailed description of the selected embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in detail in the following embodiments with reference to the accompanying drawings. [Embodiment] Referring to the first and second figures, the present invention is a method for separating a circular film-like magnetic droplet, which comprises the following steps: 1. Prepare steps 11, 2, apply magnetic field step 12, and third, complete step 13. With respect to the preparation step 11, a horizontal carrier sheet 20, a magnetic field generating device 30, and a power supply unit 40 are prepared; the magnetic field generating device 30 has an upper coil 31, a lower coil 32, and an upper coil 31 and the lower portion The accommodating space 33 between the coils 32 is disposed in the accommodating space 33; the horizontal carrier sheet 20 carries a circular film-like magnetic droplet 21A (see FIGS. 3A and 3B). Its initial diameter dl is between 300 micrometers and 1600 micrometers, and its initial thickness hi is less than 1/5 of the initial diameter dl. With respect to the applied magnetic field step 12, a predetermined (for example, gradually increasing or instantaneous switching) magnetic field is generated between the coil 31 and the lower coil 32 of the magnetic field generating device 30. The magnetic field is substantially perpendicular to the magnetic droplet 21A; The magnetic droplet 21A on the horizontal carrier sheet 20 is split into at least two magnetic droplets 21B separated from each other as shown by the magnetic field (as shown in FIG. 5B). Finally, step 13 is completed: at least two magnetic droplets 21B separated from each other are obtained. Of course, the circular film-like magnetic droplet 21A can be a simple magnetic liquid or a mixture of a working liquid and a magnetic liquid, and the working fluid system 1290481 is selected from a biomedical sample, a chemical sample, and a pigment. one of them. In the above process, the present invention utilizes an image capturing device 5 (as shown in the figure) to take a photo record. For the principle of the present invention, please refer to the second A, third B, fourth a, The four B, fifth A and fifth B diagrams are illustrated as follows: As shown in the third and third B diagrams, in the initial state, without any magnetic field, the circular film-like magnetic droplet 21A has a flat circular film on the horizontal carrier sheet 2''. When the magnetic field is gradually strengthened, since the magnetic particles 21A contain a large number of magnetic particles of the size of the rice, when they are subjected to magnetic lines of force, there is a tendency to concentrate along the magnetic lines of force, but the surface tension and the center of the liquid are also affected. Due to the influence of gravity, the central raised zone Z1 and the peripheral raised zone Z2 are formed first, with a thinned connecting zone Z3 therebetween, but not yet broken, as shown in the fourth A and fourth beta figures. When the magnetic field is gradually strengthened to a certain degree, the central convex region ζι and the peripheral convex _Z2 are separated, and the hard magnetic force is affected, so that two magnetic droplets 21B separated from each other are formed, such as the fifth. A and V are shown in Figure 5. Similarly, if the magnetic field continues to increase, a splitting state as shown in Fig. 6 is formed, one in the center and the other six in the periphery, which is equivalent to splitting into seven magnetic droplets 21C separated from each other.凊 Refer to the seventh, seventh, seventh, seventh, seventh, seventh, seventh, seventh, seventh, and seventh I diagrams, when the initial diameter is 丨_μm, the magnetic field strength Gradually increased to 584 Gauss, the time is in the second leap second, the second leap, 1290481 3 1 · 丨 5 seconds, the second second, the third second, the sixth second, the eighth second, the second and the private Animated. It can be seen that the magnetic droplet finally splits into a plurality of magnetic droplets that are separated from each other and the magnetic droplets of the outermost circle tend to move outward in a small amount. In addition, the predetermined magnetic field of the present invention can also be changed to the magnetic field type of the instantaneous switch (similar to pulse type), that is, the magnetic field strength is instantaneous chat Gauss, and four initial diameters dl are selected to be 400 micrometers, 800 micrometers, and 1200 micrometers, respectively. And 1600 micro, magnetic droplets, the experimental wire, please refer to the first person A, the second B, the eighth C and the eighth D picture 'and the shooting time is 3G seconds, 6G seconds, 25 seconds and the first The 6G fy H can be seen from this, and when the initial diameter is larger, it is easier to separate 'so the number of separation is larger. And the magnetic droplets on the periphery have a tendency to be guided to move outward. There are many industries in which the present invention can be applied, and the following examples are given: [a] Applied to microtests: In some cases, it is assumed that certain small drops to be separated from magnetic liquids cannot be separated or difficult to leave. The magnetic liquid can be added to form a circular film-like magnetic droplet, which can be separated by the present invention, for example, into seven separate droplets, and seven different microtests can be performed. [b] Applied to art photography: When the circular film-like magnetic droplets are gradually separated, many flaws with unique aesthetics, such as Figures 7B to VII, are formed, all of which have a high artistic beauty. 1290481 W is used in teaching experiments: In traditional physics, it is more common for droplets to come into contact with another droplet due to the influence of surface tension, but it is not easy to separate. Conventional non-contact non-contact methods of separating droplets mainly apply weight: or centroid force, but the present invention provides separation by means of magnetic force. In summary, the advantages and effects of the present invention can be summarized as follows: [1] The non-contact method can be used to separate the micro-language. The hair duck uses magnetic force ♦ _ the __ shaped magnetic droplets are separated into at least _, which is separated from the non-contact ruthless manner. [2] The peripheral droplets can be guided to radiate outward. When the magnetic degree of the present invention is in a certain range, the UX causes the separated droplets to move outward again, and thus has a guiding function. [3] Can be applied to micro-tests, art photography and teaching experiments. The invention can not only meet the micro-test, but also in the art photography and fresh experiment of the film, so the use of the industry is unquestionable. The above is only the use of the implementation of the fine-grained version (4), for any changes made to the embodiment of the 'changes, the material Lin Ben (four) fine __. ‘ From the above details, it is possible to make the above-mentioned purpose _ Shuming who is familiar with this secret. It has already met the requirements of the Patent Law and proposed the invention patent Shen Jing. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of the separation of the present invention. The second embodiment is a schematic diagram of the system architecture of the experimental apparatus of the present invention. The third and third B diagrams are the magnetic droplets of the present invention. The appearance of the initial state and the cross-sectional view of the fourth and fourth B are the magnetic droplets of the present invention, after the application of a small amount of magnetic field, the intention is not intended and the cross-sectional view is not intended to be the fifth and fifth B drawings. FIG. 6 is a schematic view and a cross-sectional view of a magnetic droplet after a sufficient magnetic field is applied. FIG. 6 is a schematic diagram of the magnetic droplets of the present invention separated into seven. FIGS. 7A, 7B, 7C, 7D, The seventh, seventh, seventh, seventh, and seventh I drawings are the eighth, eighth, eighth, eighth, and eighth actual image views of the present invention at different times by gradually increasing the magnetic field. D is the actual image of the effect of the instantaneous magnetic field on the droplets of different sizes in the present invention. [Main element symbol description] 11 preparation step 12 application of magnetic field step 13 completion step 20 horizontal carrier sheets 21A, 21B, 21C magnetic droplets 30 The coil 32 is off-line on the magnetic field generating device 31 Circle 33 accommodation space 40 power supply 50 image capture device dl initial diameter hi initial thickness Z1 central raised area Z2 peripheral raised area Z3 connection area 11