{"title":"Microfluidic switching devices showing controllable hysteresis","authors":"Salvador Ortiz, J. Lell","doi":"10.1109/MEMSYS.2015.7051009","DOIUrl":null,"url":null,"abstract":"We present a microfluidic MEMS device that is capable of switching among different states, thus behaving as an effective flip-flop. The devices consist of linear microfabricated deLaval nozzles with three exit channels, and we analyze the response as a function of input and output pressures, feed gas, and dimensions. In all cases, we have seen the appearance of a vortex, whose direction of swirl changes sign according the input pressure, and showing hysteresis. This type of response can be used to realize history-aware fluidic devices.","PeriodicalId":337894,"journal":{"name":"2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MEMSYS.2015.7051009","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We present a microfluidic MEMS device that is capable of switching among different states, thus behaving as an effective flip-flop. The devices consist of linear microfabricated deLaval nozzles with three exit channels, and we analyze the response as a function of input and output pressures, feed gas, and dimensions. In all cases, we have seen the appearance of a vortex, whose direction of swirl changes sign according the input pressure, and showing hysteresis. This type of response can be used to realize history-aware fluidic devices.
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