Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts
An optical servo system is a new control system which can be used in hazardous environments; such as those with electromagnetic influence, radiation and so on. The purpose of our study is to develop such an optical control system. In our previous study, an optical servo valve in which the output dif...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2010-03-01
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| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_135/_pdf/-char/en |
| _version_ | 1818942448052731904 |
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| author | Tetsuya AKAGI Shujiro DOHTA |
| author_facet | Tetsuya AKAGI Shujiro DOHTA |
| author_sort | Tetsuya AKAGI |
| collection | DOAJ |
| description | An optical servo system is a new control system which can be used in hazardous environments; such as those with electromagnetic influence, radiation and so on. The purpose of our study is to develop such an optical control system. In our previous study, an optical servo valve in which the output differential pressure was proportional to input optical power had been developed. However, the dynamics of the valve depended on the time required to move the flapper membrane of a fluid booster amplifier using the lower flow rate from the photo-fluidic interface. In addition, the lifetime of the valve depends on that of the fluid booster amplifier that has mechanical moving parts. As a next step, we need to improve the dynamics and to get longer lifetime of the optical servo valve and try to develop another type of optical servo valve whose elements have no mechanical moving parts. In this paper, a photo-fluidic control valve which consists of the photo-fluidic interface and fluid amplifier only using fluidics is proposed. As a result, we found that the tested valve generated output differential pressure of + 80 kPa or -80 kPa according to applied optical power. By driving a pneumatic cylinder whose inner diameter is 16 mm with a stroke of 100 mm using the tested valve, we also confirmed that the tested valve has enough output fluid power to drive a small-sized pneumatic cylinder on the market. |
| first_indexed | 2024-12-20T07:11:35Z |
| format | Article |
| id | doaj.art-6ac40679aae143e6afbe89fffa626ece |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-12-20T07:11:35Z |
| publishDate | 2010-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-6ac40679aae143e6afbe89fffa626ece2022-12-21T19:48:53ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582010-03-015213514410.1299/jfst.5.135jfstDevelopment of a Photo-Fluidic Control Valve without Mechanical Moving PartsTetsuya AKAGI0Shujiro DOHTA1Department of Intelligent Mechanical Engineering, Okayama University of ScienceDepartment of Intelligent Mechanical Engineering, Okayama University of ScienceAn optical servo system is a new control system which can be used in hazardous environments; such as those with electromagnetic influence, radiation and so on. The purpose of our study is to develop such an optical control system. In our previous study, an optical servo valve in which the output differential pressure was proportional to input optical power had been developed. However, the dynamics of the valve depended on the time required to move the flapper membrane of a fluid booster amplifier using the lower flow rate from the photo-fluidic interface. In addition, the lifetime of the valve depends on that of the fluid booster amplifier that has mechanical moving parts. As a next step, we need to improve the dynamics and to get longer lifetime of the optical servo valve and try to develop another type of optical servo valve whose elements have no mechanical moving parts. In this paper, a photo-fluidic control valve which consists of the photo-fluidic interface and fluid amplifier only using fluidics is proposed. As a result, we found that the tested valve generated output differential pressure of + 80 kPa or -80 kPa according to applied optical power. By driving a pneumatic cylinder whose inner diameter is 16 mm with a stroke of 100 mm using the tested valve, we also confirmed that the tested valve has enough output fluid power to drive a small-sized pneumatic cylinder on the market.https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_135/_pdf/-char/enphoto-fluidic control valvephoto-fluidic interfaceoptical servo systemfluidicsoptical signalno mechanical moving parts |
| spellingShingle | Tetsuya AKAGI Shujiro DOHTA Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts Journal of Fluid Science and Technology photo-fluidic control valve photo-fluidic interface optical servo system fluidics optical signal no mechanical moving parts |
| title | Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts |
| title_full | Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts |
| title_fullStr | Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts |
| title_full_unstemmed | Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts |
| title_short | Development of a Photo-Fluidic Control Valve without Mechanical Moving Parts |
| title_sort | development of a photo fluidic control valve without mechanical moving parts |
| topic | photo-fluidic control valve photo-fluidic interface optical servo system fluidics optical signal no mechanical moving parts |
| url | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_135/_pdf/-char/en |
| work_keys_str_mv | AT tetsuyaakagi developmentofaphotofluidiccontrolvalvewithoutmechanicalmovingparts AT shujirodohta developmentofaphotofluidiccontrolvalvewithoutmechanicalmovingparts |