Fundamental study to develop a fiber-optic gap sensor for a rotary undulation pump
The rotary undulation pump is believed to be a good candidate for the next-generation artificial heart. Due to its complex movement, it is desirable to magnetically levitate the rotor and dynamically control the gap. In this article, the applicability of a fiber-optic gap sensor to the dynamic posit...
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| Veröffentlicht in: | Journal of artificial organs 2007-12, Vol.10 (4), p.231-235 |
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| creator | Mitsumune, Norihiko Saito, Itsuro Mochizuki, Shuichi Abe, Yusuke Isoyama, Takashi Nakagawa, Hidemoto Ono, Toshiya Kouno, Akimasa Sugino, Ayaka Chinzei, Tsuneo |
| description | The rotary undulation pump is believed to be a good candidate for the next-generation artificial heart. Due to its complex movement, it is desirable to magnetically levitate the rotor and dynamically control the gap. In this article, the applicability of a fiber-optic gap sensor to the dynamic position control of the rotor in the rotary undulation pump was investigated. The fiber-optic gap sensor consisted of two plastic-core fibers and a reflection plate. Two 1-mm-diameter optical fibers were aligned parallel: one for source light propagation and the other for reflected light transmission. The basic properties of gap sensors using four different light sources were explored in five media (air, physiologic saline, and blood samples with three different hematocrit levels). The influence of the oxygen saturation level in the blood on sensing was investigated with two types of light sources. It is desirable to use a light source the wavelength of which shows similar absorption coefficients for both oxygenated blood and deoxygenated blood. The effect of the distance between the two fibers on the sensing and range was also investigated. The results indicated that the fiber-optic gap sensor is quite promising for the active control of rotor positioning in the rotary undulation pump. |
| doi_str_mv | 10.1007/s10047-007-0388-x |
| format | Article |
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Due to its complex movement, it is desirable to magnetically levitate the rotor and dynamically control the gap. In this article, the applicability of a fiber-optic gap sensor to the dynamic position control of the rotor in the rotary undulation pump was investigated. The fiber-optic gap sensor consisted of two plastic-core fibers and a reflection plate. Two 1-mm-diameter optical fibers were aligned parallel: one for source light propagation and the other for reflected light transmission. The basic properties of gap sensors using four different light sources were explored in five media (air, physiologic saline, and blood samples with three different hematocrit levels). The influence of the oxygen saturation level in the blood on sensing was investigated with two types of light sources. It is desirable to use a light source the wavelength of which shows similar absorption coefficients for both oxygenated blood and deoxygenated blood. The effect of the distance between the two fibers on the sensing and range was also investigated. The results indicated that the fiber-optic gap sensor is quite promising for the active control of rotor positioning in the rotary undulation pump.</description><identifier>ISSN: 1434-7229</identifier><identifier>EISSN: 1619-0904</identifier><identifier>DOI: 10.1007/s10047-007-0388-x</identifier><identifier>PMID: 18071854</identifier><language>eng</language><publisher>Japan: Springer Nature B.V</publisher><subject>Animals ; Fiber Optic Technology ; Goats ; Heart, Artificial ; Hemorheology ; Magnetics ; Optical Fibers ; Prosthesis Design ; Sensors</subject><ispartof>Journal of artificial organs, 2007-12, Vol.10 (4), p.231-235</ispartof><rights>The Japanese Society for Artificial Organs 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c412t-843f45df9927f6869c8d29e4d42fc2786db5901d98b1d01d48ae4c991183fd0f3</citedby><cites>FETCH-LOGICAL-c412t-843f45df9927f6869c8d29e4d42fc2786db5901d98b1d01d48ae4c991183fd0f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18071854$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mitsumune, Norihiko</creatorcontrib><creatorcontrib>Saito, Itsuro</creatorcontrib><creatorcontrib>Mochizuki, Shuichi</creatorcontrib><creatorcontrib>Abe, Yusuke</creatorcontrib><creatorcontrib>Isoyama, Takashi</creatorcontrib><creatorcontrib>Nakagawa, Hidemoto</creatorcontrib><creatorcontrib>Ono, Toshiya</creatorcontrib><creatorcontrib>Kouno, Akimasa</creatorcontrib><creatorcontrib>Sugino, Ayaka</creatorcontrib><creatorcontrib>Chinzei, Tsuneo</creatorcontrib><title>Fundamental study to develop a fiber-optic gap sensor for a rotary undulation pump</title><title>Journal of artificial organs</title><addtitle>J Artif Organs</addtitle><description>The rotary undulation pump is believed to be a good candidate for the next-generation artificial heart. 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The effect of the distance between the two fibers on the sensing and range was also investigated. The results indicated that the fiber-optic gap sensor is quite promising for the active control of rotor positioning in the rotary undulation pump.</description><subject>Animals</subject><subject>Fiber Optic Technology</subject><subject>Goats</subject><subject>Heart, Artificial</subject><subject>Hemorheology</subject><subject>Magnetics</subject><subject>Optical Fibers</subject><subject>Prosthesis Design</subject><subject>Sensors</subject><issn>1434-7229</issn><issn>1619-0904</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kU1LxDAQhoMo7rr6A7xIQNBTNNNm83GUxS8QBNFzSJtEKm1Tk1bWf2-WXRA8eJiZ9_DMCzMvQqdAr4BScZ1yZ4JkSWgpJVnvoTlwUIQqyvazZiUjoijUDB2l9EEpiKWgh2gGkgqQSzZHL3dTb03n-tG0OI2T_cZjwNZ9uTYM2GDfVC6SMIxNjd_NgJPrU4jY5zI4htHEb5wdptaMTejxMHXDMTrwpk3uZDcX6O3u9nX1QJ6e7x9XN0-kZlCMRLLSs6X1ShXCc8lVLW2hHLOs8HUhJLfVUlGwSlZg82TSOFYrBSBLb6kvF-hy6zvE8Dm5NOquSbVrW9O7MCWtgHLOpWKZvPiX5PldnLINeP4H_AhT7PMVGgBKBlwykSnYUnUMKUXn9RCbLn9CA9WbYPQ2GL2Rm2D0Ou-c7ZynqnP2d2OXRPkD5IGIJg</recordid><startdate>200712</startdate><enddate>200712</enddate><creator>Mitsumune, Norihiko</creator><creator>Saito, Itsuro</creator><creator>Mochizuki, Shuichi</creator><creator>Abe, Yusuke</creator><creator>Isoyama, Takashi</creator><creator>Nakagawa, Hidemoto</creator><creator>Ono, Toshiya</creator><creator>Kouno, Akimasa</creator><creator>Sugino, Ayaka</creator><creator>Chinzei, Tsuneo</creator><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QO</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>200712</creationdate><title>Fundamental study to develop a fiber-optic gap sensor for a rotary undulation pump</title><author>Mitsumune, Norihiko ; 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Due to its complex movement, it is desirable to magnetically levitate the rotor and dynamically control the gap. In this article, the applicability of a fiber-optic gap sensor to the dynamic position control of the rotor in the rotary undulation pump was investigated. The fiber-optic gap sensor consisted of two plastic-core fibers and a reflection plate. Two 1-mm-diameter optical fibers were aligned parallel: one for source light propagation and the other for reflected light transmission. The basic properties of gap sensors using four different light sources were explored in five media (air, physiologic saline, and blood samples with three different hematocrit levels). The influence of the oxygen saturation level in the blood on sensing was investigated with two types of light sources. It is desirable to use a light source the wavelength of which shows similar absorption coefficients for both oxygenated blood and deoxygenated blood. The effect of the distance between the two fibers on the sensing and range was also investigated. The results indicated that the fiber-optic gap sensor is quite promising for the active control of rotor positioning in the rotary undulation pump.</abstract><cop>Japan</cop><pub>Springer Nature B.V</pub><pmid>18071854</pmid><doi>10.1007/s10047-007-0388-x</doi><tpages>5</tpages></addata></record> |
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| subjects | Animals Fiber Optic Technology Goats Heart, Artificial Hemorheology Magnetics Optical Fibers Prosthesis Design Sensors |
| title | Fundamental study to develop a fiber-optic gap sensor for a rotary undulation pump |
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