DC Field | Value | Language |
---|---|---|
dc.contributor.author | 조영호 | ko |
dc.contributor.author | 윤상희 | ko |
dc.date.accessioned | 2013-03-04T22:07:12Z | - |
dc.date.available | 2013-03-04T22:07:12Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-12 | - |
dc.identifier.citation | 대한기계학회논문집 A, v.28, no.12, pp.1923 - 1930 | - |
dc.identifier.issn | 1226-4873 | - |
dc.identifier.uri | http://hdl.handle.net/10203/84342 | - |
dc.description.abstract | This paper presents digital microflow controllers(DMFC), where a fluidic digital-to-analog converter(DAC) is used to achieve high-linearity, fine-level flow control for applications to precision biomedical dosing systems. The fluidic DAC, composed of binary-weighted flow resistance, controls the flow-rate based on the ratio of the flow resistance to achieve high-precision flow-rate control. The binary-weighted flow resistance has been specified by a serial or a parallel connection of an identical flow resistor to improve the linearity of the flow-rate control, thereby making the flow-resistance ratio insensitive to the size uncertainty in flow resistors due to micromachining errors. We have designed and fabricated three different types of 4-digit DMFC: Prototype S and P are composed of the serial and the parallel combinations of an identical flow resistor, while Prototype V is based on the width-varied flow resistors. In the experimental study, we perform a static test for DMFC at the forward and backward flow conditions as well as a dynamic tests at pulsating flow conditions. The fabricated DMFC shows the nonlinearity of 5.0% and the flow-rate levels of 16(2) for the digital control of 4(N) valves. Among the 4-digit DMFC fabricated with micromachining errors, Prototypes S and P show 27.2% and 27.6% of the flow-rate deviation measured from Prototype V, respectively; thus verifying that Prototypes S and P are less sensitive to the micromachining error than Prototype V.V. | - |
dc.language | Korean | - |
dc.publisher | 대한기계학회 | - |
dc.title | 이진가중형 유체 디지털-아날로그 변환기를 이용한 고정도 미소유량 조절기 | - |
dc.title.alternative | Digital Microflow Controllers Using Fluidic Digital-to-Analog Converters with Binary-Weighted Flow Resistor Network | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 28 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 1923 | - |
dc.citation.endingpage | 1930 | - |
dc.citation.publicationname | 대한기계학회논문집 A | - |
dc.identifier.kciid | ART000975010 | - |
dc.contributor.localauthor | 조영호 | - |
dc.contributor.nonIdAuthor | 윤상희 | - |
dc.subject.keywordAuthor | Fluidic Digital-to-Analog Converter(유체 디지털-아날로그 변환기) | - |
dc.subject.keywordAuthor | Fluidic Resistor(유동저항) | - |
dc.subject.keywordAuthor | Microflow Controller(미소유량 조절기) | - |
dc.subject.keywordAuthor | Micromachining Error(미소가공 오차) | - |
dc.subject.keywordAuthor | Fluidic Digital-to-Analog Converter(유체 디지털-아날로그 변환기) | - |
dc.subject.keywordAuthor | Fluidic Resistor(유동저항) | - |
dc.subject.keywordAuthor | Microflow Controller(미소유량 조절기) | - |
dc.subject.keywordAuthor | Micromachining Error(미소가공 오차) | - |
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