JP2011095213A5 - - Google Patents
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- JP2011095213A5 JP2011095213A5 JP2009251966A JP2009251966A JP2011095213A5 JP 2011095213 A5 JP2011095213 A5 JP 2011095213A5 JP 2009251966 A JP2009251966 A JP 2009251966A JP 2009251966 A JP2009251966 A JP 2009251966A JP 2011095213 A5 JP2011095213 A5 JP 2011095213A5
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- JP
- Japan
- Prior art keywords
- recess
- liquid
- radius
- stored
- volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
図4に、凹部40aの拡大図を示す。凹部40aは、上部開口面の半径がR0、凹部40aの底部から上部開口面までの高さがH0である円錐状の容器である。これらR0、H0の値は予め求められている。
今、凹部40aに貯留された液体の上面(液面)の半径をr1とすると、その時点での凹部40aの底面から液面までの高さh1は、次の式(1)で表される。
h1=r1/R0 ×H0 ・・・・(1)
よって、その時点での底部から液面までの容積V1は次の式(2)で表される。
V 1 =πr 1 2 h 1 /3=πr 1 3 /R 0 ×H 0 /3 ・・・(2)
このように、CCDカメラ16で取り込んだ液面の画像から半径r1が求められれば、凹部40a内に貯留された液体の容積を算出することができる。液面の半径r1と凹部40a内に貯留された液滴の容積V1との関係を表す式(2)は演算部51に予め記憶されている。
FIG. 4 shows an enlarged view of the recess 40a. The recess 40a is a conical container in which the radius of the upper opening surface is R 0 and the height from the bottom of the recess 40a to the upper opening surface is H 0 . The values of R 0 and H 0 are obtained in advance.
Table Now, when the radius of the upper surface of the liquid stored in the recess 40a (liquid surface) and r 1, height h 1 from the bottom surface of the recess 40a at that time to the liquid surface is the following equation (1) Is done.
h 1 = r 1 / R 0 × H 0 ... (1)
Therefore, the volume V1 from the bottom to the liquid level at that time is expressed by the following equation (2).
V 1 = πr 1 2 h 1 /3 = πr 1 3 / R 0 × H 0/3 ··· (2)
In this way, if the radius r 1 is obtained from the liquid level image captured by the CCD camera 16, the volume of the liquid stored in the recess 40a can be calculated. Expression (2) representing the relationship between the radius r 1 of the liquid level and the volume V 1 of the droplet stored in the recess 40 a is stored in advance in the calculation unit 51.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009251966A JP5402534B2 (en) | 2009-11-02 | 2009-11-02 | Liquid dispensing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009251966A JP5402534B2 (en) | 2009-11-02 | 2009-11-02 | Liquid dispensing device |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011095213A JP2011095213A (en) | 2011-05-12 |
JP2011095213A5 true JP2011095213A5 (en) | 2012-07-12 |
JP5402534B2 JP5402534B2 (en) | 2014-01-29 |
Family
ID=44112271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009251966A Active JP5402534B2 (en) | 2009-11-02 | 2009-11-02 | Liquid dispensing device |
Country Status (1)
Country | Link |
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JP (1) | JP5402534B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9212976B2 (en) * | 2013-03-15 | 2015-12-15 | Qiagen Gaithersburg, Inc. | Vision-guided aspiration apparatus and methods |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58100713A (en) * | 1981-12-12 | 1983-06-15 | Sumitomo Heavy Ind Ltd | Method and device for level measurement |
JPH10132641A (en) * | 1996-10-31 | 1998-05-22 | Tosok Corp | Method for inspecting amount of liquid |
JPH10332459A (en) * | 1997-05-30 | 1998-12-18 | Olympus Optical Co Ltd | Liquid level detecting method |
JP4062203B2 (en) * | 2003-07-30 | 2008-03-19 | 株式会社島津製作所 | Quantitative dispensing method and dispensing apparatus using dispensing unit |
JP2007198751A (en) * | 2006-01-23 | 2007-08-09 | Olympus Corp | Dispensing system, analyzer and dispensing method |
JP2007298445A (en) * | 2006-05-01 | 2007-11-15 | Olympus Corp | Liquid level detector |
JP2009156793A (en) * | 2007-12-27 | 2009-07-16 | Olympus Corp | Autoanalyzer |
JP5132396B2 (en) * | 2008-04-03 | 2013-01-30 | ローム株式会社 | Microchip |
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2009
- 2009-11-02 JP JP2009251966A patent/JP5402534B2/en active Active
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