Takahiro Kataoka, Kazuki Aoyama, N. Maekawa, Yusuke Yamamoto, Masayuki Naito, K. Tatsuno
{"title":"Experiments on power distribution maintenance robot system-Select parameter to insert a bolt on power distribution maintenance robot system","authors":"Takahiro Kataoka, Kazuki Aoyama, N. Maekawa, Yusuke Yamamoto, Masayuki Naito, K. Tatsuno","doi":"10.1109/MHS.2011.6102205","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102205","url":null,"abstract":"This paper describes how to insert a bolt in power distribution maintenance tasks. The present system has about 1 cm margin error between CG (computer graphic) and real environment. The arm holding the bolt approaches to the position above a bolt hole under position control and inserts the bolt under compliance control.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129387380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cell fixation and release by noncontact pressure control of untethred on-chip robot","authors":"A. Ichikawa, F. Arai","doi":"10.1109/MHS.2011.6102154","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102154","url":null,"abstract":"We have developed an on-chip micro-robot, which has ability of pipetting such as cell injection, local regent blow, enucleation, air bubble generator, piercing cells, and micro-manipulation, made by SU-8 photoresist for cloning, chimera technology, cell assays, and artificial lipid bilayer membrane making. We used the property of SU-8 which has a sufficient stiffness enough to penetrate cells as well as a sufficient softness enough to provide pumping functions, which is unlike a glass or silicon materials. Using this material, we improved our magnetically-driven micro-tool (MMT) as a multifunctional micro-tool.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130246387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel fall prevention scheme for intelligent cane robot by using a motor driven universal joint","authors":"P. Di, Jian Huang, K. Sekiyama, T. Fukuda","doi":"10.1109/MHS.2011.6102215","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102215","url":null,"abstract":"In this study, we propose a novel fall prevention scheme for an omni-direction type cane robot by using a DC motor driven universal joint. The cane robot which is driven by three omni-wheels is called Intelligent Cane Robot (iCane). It is designed for aiding the elderly and handicapped people walking as shown in Fig.1. The motion of cane robot is controlled for both normal and abnormal walking conditions. The user's normal walking aided by the cane robot, a concept called “Intentional Direction (ITD)” is proposed. Guided by the online estimated ITD, we apply the admittance control method in the motion control of cane robot. For the abnormal walking, we mainly studied the case of user's fall down. The center of gravity (COG) of user can be estimated from the angle of an inverted pendulum which represents human dynamic model. Fall prevention algorithm based on the relationship between user's COG and the cane is proposed. Because the size of the cane robot is small, when the robot is preventing the user falling down, firstly, the stability of the cane robot should be ensured. A universal joint which is driven by two DC motors is used to reduce the moment causing the cane robot falling over. The proposed method is verified through experiments.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129868397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Nagamine, S. otani, M. Takeda, M. Kanzaki, M. Nishizawa
{"title":"Hydrogel-supported skeletal muscle cell-based bioassay system","authors":"K. Nagamine, S. otani, M. Takeda, M. Kanzaki, M. Nishizawa","doi":"10.1109/MHS.2011.6102223","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102223","url":null,"abstract":"Contractile C2C12 myotube line patterns supported by a fibrin gel have been developed to afford a physiologically relevant and stable bioassay system. Myotube line patterns cultured on dish were transferred with 100% efficiency to the surface of fibrin gel sheets. We found that the myotubes supported by an elastic fibrin gel maintained their line patterns and contractile activities for a longer period of time (one week) than myotubes adhered on a conventional culture dish. The gel sheet-supported C2C12 myotube micropatterns were combined with a microelectrode array chip to fabricate a skeletal muscle cell-based bioassay system. The contractile behavior of each myotube line pattern on the gel was individually controlled by localized electrical stimulation using microelectrode arrays that had been previously modified with the electropolymerized conducting polymer. We successfully demonstrated fluorescent imaging of the contraction-induced translocation of the glucose transporter, GLUT4, from intracellular vesicles to the plasma membrane of the myotubes. This device is applicable for the bioassay of contraction-induced metabolic alterations in a skeletal muscle cell.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127322753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Position estimation of distributed sensor node robots by their communication connectivity","authors":"S. Ichikawa","doi":"10.1109/MHS.2011.6102176","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102176","url":null,"abstract":"In this paper, we investigate the accuracy of position estimation of distributed sensor nodes. The method of the estimation is calculated by communication connectivity statuses of local communication between the nodes. Actual positions of the nodes are unknown. A host computer, which can collect all of the connectivity conditions of the network, iteratively calculate the estimated positions to be less error of the communication connectivity between actual positions and estimated positions. We carried out the simulation studies with respect to spatial size of the distribution, density of the sensor nodes and dynamical distribution with moving and changing of the sensor positions.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127885046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Toru Ejima, K. Ohara, T. Takubo, Y. Mae, T. Tanikawa, T. Arai
{"title":"Design of a compact 3-DOF microhand system with large workspace","authors":"Toru Ejima, K. Ohara, T. Takubo, Y. Mae, T. Tanikawa, T. Arai","doi":"10.1109/MHS.2011.6102160","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102160","url":null,"abstract":"In the fields of medicine and biology, it is essential to realize fine manipulation. Therefore, micromanipulation techniques and micromanipulators such as microgrippers and optical tweezers have been developed. We have developed a two-fingered microhand which is using the parallel mechanism to realize precise and stable micromanipulation. In this paper, we report the design of a compact 3-DOF microhand system with a large workspace. This microhand contains a new parallel mechanism and its characteristic is utilizing the singularity of the parallel mechanisms. We establish an analytic theory for the proposed microhand, and we analyze the workspace. Also, we draw the CAD data to realize the system in 3D. The workspace of the proposed microhand is larger than previous microhands as far as simulation results shows.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129975328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kyohei Tomita, T. Nakano, K. Onda, T. Fukuda, T. Matsuda, M. Negoro, F. Arai
{"title":"Fabrication of 3D capillary vessel simulator using femtosecond laser and mask hybrid exposure","authors":"Kyohei Tomita, T. Nakano, K. Onda, T. Fukuda, T. Matsuda, M. Negoro, F. Arai","doi":"10.1109/MHS.2011.6102197","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102197","url":null,"abstract":"Circulation-type blood vessel model can contribute to evaluation of drag delivery systems and the alternative systems for animal test. The shape of conventional models fabricated by photolithography is limited to two dimensions (2D). Therefore, we needed to fabricate three-dimensional (3D) blood vessel models for simulating real blood vessel shapes. For this purpose, we propose a novel 3D exposure method as femtosecond laser and mask hybrid exposure: FMEx. FMEx is integrated two-photon absorption exposure method by using femtosecond laser and photolithography method by using mask aligner. We report the results of fabricated 3D capillary vessel model by using FMEx.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128303878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of conditions generating velvet hand illusion toward tactile displays","authors":"R. Nader, Yuji Kawabe, M. Ohka, T. Miyaoka","doi":"10.1109/MHS.2011.6102247","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102247","url":null,"abstract":"We have investigated several characteristics of one kind of tactile illusion, called the Velvet Hand Illusion (VHI), to utilize the experimental results to generate virtual feeling of a material. In VHI, a human subject gently rubs his/her hands on both sides of a wire grid strung through a frame. The sensation produced on his/her hands is very smooth and slippery, like velvet. We focused on the VHI mechanism for new tactile displays in the virtual reality field because such tactile illusions play a useful role in deceiving the brain so that operators believe a virtual sensation is real. VHI characteristics are obtained from accomplishing a series of psychophysical experiments using Thurstone's method of paired comparison. In the experiment, the stroke movement distance of wires, r, is varied under constant wire spacing, D; the velocity of wire movement is varied, with both wire spacing and stroke movement distance of the wires held constant. It is found that the strongest VHI was obtained at r/D and that the strongest VHI occurred at a specific velocity generating tangential vibration of around 50 Hz. Since VHI requires both compressive stress and tangential stimulus, it is caused by not just one of the four varieties of mechanoreceptive units, but two or more of them. This finding confirms that VHI does not occur in the mechanoreceptive units themselves but in the brain.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131060681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Load-sensitive continuously variable transmission using an oblique feed screw for parallel-jaw grippers","authors":"T. Takaki, Yoru Yamasaki, I. Ishii","doi":"10.1109/MHS.2011.6102243","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102243","url":null,"abstract":"In this paper, we describe an oblique feed screw that can be used as a load-sensitive continously variable transmission (CVT). This CVT consists of a screw, spring, and bearing, and it is remarkably simple and compact. Its reduction ratio changes automatically in response to the load, and its weights 13.8 [g]. We have experimentally verified that it can exert a large force of more than 100 [N], that it can increase its reduction ration from 20 to 45.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125896792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Kurita, A. Ikeda, Tadashi Matsumoto, T. Ogasawara
{"title":"Evaluation of grasp efficiency based on muscle activity estimation by anthropomorphic robot fingers","authors":"Y. Kurita, A. Ikeda, Tadashi Matsumoto, T. Ogasawara","doi":"10.1109/MHS.2011.6102233","DOIUrl":"https://doi.org/10.1109/MHS.2011.6102233","url":null,"abstract":"This study aims to quantitatively evaluate product usability in terms of the efficiency of muscle activity. A musculoskeletal finger model that considers anatomical features of fingers is built and the muscle activity when the fingers move is estimated. In this paper, new robot fingers which have human mimetic structure are also presented. The proposed fingers mimic the size, degree of freedom and fingertip structure of humans. The muscle activity when an object is grasped by human fingers can be estimated by using the developed anthropomorphic robot fingers.","PeriodicalId":286457,"journal":{"name":"2011 International Symposium on Micro-NanoMechatronics and Human Science","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134433964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}