• 제목/요약/키워드: Reel to Reel

검색결과 99건 처리시간 0.033초

Effect of water partial pressure on the texture and the morphology of MOD-YBCO films on buffered metal tapes

  • Chung, Kook-Chae;Yoo, Jai-Moo;Ko, Jae-Woong;Kim, Young-Kuk;Wang, X.L.;Dou, S.X.
    • 한국초전도ㆍ저온공학회논문지
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    • 제9권2호
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    • pp.23-26
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    • 2007
  • The influence of water partial pressure in Metal-organic Deposition (MOD) method was investigated on the texture and the morphology of $YBa_2Cu_3O_{7-x}$ (YBCO) films grown on the buffered metal tapes. The water partial pressure was varied from 4.2% up to 10.0% with the other process variables, such as annealing temperature and oxygen partial pressure, kept constant. In this work, the fluorine-free Y & Cu precursor solution added with Sm was synthesized and coated by the continuous slot-die coating & calcination step. The next annealing step of the YBCO films was done by the reel-to-reel method with the gas flowed vertically down. From the x-ray diffraction analysis, the un-reacted phase like $BaF_2$ peak was found at the water partial pressure of 4.2%, but $BaF_2$ peak intensity is much reduced as the water partial pressure is increased. However, the higher water partial pressure of about 10% in this experiment leads to the poor crystallinity of YBCO films. The morphologies of the YBCO films were not different from each other when the water partial pressure was varied in this work. The maximum critical current density of 3.8MA/$cm^2$ was obtained at the water partial pressure of 6.2% with the annealing temperature of 780$^{\circ}C$ and oxygen partial pressure of 500ppm.

게임그래픽과 게임시스템적인 측면에서 사행성유기기구 모사 (A Reproduction of Amusement With Prize(AWP) in perspective of Game Graphic and Game System)

  • 송승근
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2014년도 춘계학술대회
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    • pp.525-526
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    • 2014
  • 최근 게임물관리위원회(이하 게임위) 출범과 함께 청소년이용불가에 해당하는 성인용 아케이드 게임에 대한 관심이 높아지고 있다. 2006년 사회적 물의를 일으킨 바다이야기와 같은 릴게임을 모사하고 더 나아가 주게임과 부게임 형태까지 모사한 게임물이 '게임위'의 심의를 기다리고 있다. 과거 2013년5월23일 대법원 판결에서는 게임시스템은 포커방식인데 반하여 게임그래픽은 사행성유기기구인 릴 게임을 모사하였다 하더라도 포커 게임으로 볼 수 밖에 없으며 더욱이 재산상의 큰 손실을 보이지 않고 환전이 이루어 지지 않을 것으로 판단하였기 때문에 사행성게임물로 보기는 어렵다는 판결이 났다. 본 연구는 객관성과 신뢰성을 확보 할 수 있는 청소년이용불가 아케이드 게임물 심의 방향을 모색하고자 한다.

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리드선 권선클레임 개선사례연구 -포장용기개량 및 권선공정전개를 중심으로- (An Improvement of Lead Wire Winding Claims: A Case Study -Packing Reel and Deployment of Winding Process-)

  • 강인선
    • 산업경영시스템학회지
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    • 제25권1호
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    • pp.49-55
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    • 2002
  • For making a lead terminal(condenser, resistor etc.), it is the matter that lead wire have to be supplied smooth without twisting and curving when it is supplied to the further processing (cutting, forming, attach process) after it being forwarded. The purpose of this study is to solve the winding claims of lead wire through the structural expansion of winding equipment to which the improvement of packing equipment to forward safely and supply the lead wire and QFD method are applied. The results of this study is available to solve the technical problem caused by the installation of the existing flyer system for the prevention of twisting and can expect the quality assurance as it prevents the claim(surface fault) caused by the bumping among lead wire which are involved in the packing equipment in its moving stage.

A Machine Vision System for Inspecting Tape-Feeder Operation

  • Cho Tai-Hoon
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제6권2호
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    • pp.95-99
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    • 2006
  • A tape feeder of a SMD(Surface Mount Device) mounter is a device that sequentially feeds electronic components on a tape reel to the pick-up system of the mounter. As components are getting much smaller, feeding accuracy of a feeder becomes one of the most important factors for successful component pick-up. Therefore, it is critical to keep the feeding accuracy to a specified level in the assembly and production of tape feeders. This paper describes a tape feeder inspection system that was developed to automatically measure and to inspect feeding accuracy using machine vision. It consists of a feeder base, an image acquisition system, and a personal computer. The image acquisition system is composed of CCD cameras with lens, LED illumination systems, and a frame grabber inside the PC. This system loads up to six feeders at a time and inspects them automatically and sequentially. The inspection software was implemented using Visual C++ on Windows with easily usable GUI. Using this system, we can automatically measure and inspect the quality of ail feeders in production process by analyzing the measurement results statistically.

가속 모델에 기초한 열화 데이터의 신뢰성 해석 -가정용 영상 재생기에 사용되는 광센서를 중심으로- (Reliability Analysis of Degradation Data Based on Accelerated Model -With Photointerrupter Used in Home VCR(Video Cassette Recorder)-)

  • 권수호;허양현;임태진
    • 산업공학
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    • 제12권3호
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    • pp.448-457
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    • 1999
  • Accelerated degradation is concerned with models and data analyses for degradation of product performance over time at overstress and design conditions. Although there have been numerous studies with accelerated degradation theory in reliability, very few actually apply to parametric statistical analyses. This paper shows how to analyze degradation data, provides tests for how well the assumptions hold. Reel sensors, a sort of photointerrupters in home VCR, hive been tested, and least-square analyses are used to illustrate our approach. Tests for linearity of the performance-time relationship, dependence of the lognormal distribution, and the standard deviation on time are performed. The mean life of tested sensors is assessed at about 414,000 hours, and the Arrhenius activation energy of this reaction is concluded to be 0.39 eV as results.

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프랑스 캐주얼 레스토랑 실내디자인 (French Casual Restaurant Interior Design)

  • 김정신
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2007년도 춘계학술대회 논문집
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    • pp.47-48
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    • 2007
  • The commerce space of today knew and simply in the space where it creates only space of the profit creation which leads a business the hay to reflect the sensitivity of the consumer new consuming culture trend it changed. It is a new trend it creates and it leads to sprout trend consumer class of leader trend(Trend Setter) as it does. This restaurant is one type of food culture which is various brunch it does with the important menu which it will pay. This design concept and one design inside the vigor garage side which reflects and to sleep the design concept which the traditional France restaurant has and has a discrimination from the plan which it sees and it applies new food culture it develops it does. Existing the reel rear design tendency which specialty restaurant is investigation it arranged the design discrimination strategy which is the possibility the shop which it tries to analyze having.

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A Tape Feeder Inspection System for Measuring Feeding Accuracy

  • Cho, Tai-Hoon
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2001년도 ICCAS
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    • pp.98.4-98
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    • 2001
  • A tape feeder of a SMD(Surface Mount Device) mounter is a device that sequentially feeds electronic components on a tape reel to the pick-up system of the mounter. As components are getting much smaller, feeding accuracy of a feeder becomes one of the most important factors for successful component pick-up. Therefore, it is critical to keep the feeding accuracy to a specified level in the assembly and production of tape feeders. This paper describes a tape feeder inspection system that was developed to automatically measure and inspect feeding accuracy using machine vision. It consists of a feeder base, an image acquisition system, and a personal computer. The image acquisition system is composed of CCD cameras with lens ...

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테이프 주행계 텐션암의 동특성해석 (The analysis of the dynamic characteristics of the tension arm in tape transporting system)

  • 김중배;류두현;박영필
    • 한국정밀공학회지
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    • 제11권2호
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    • pp.164-172
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    • 1994
  • The purposes of the study are to formulate a mathematical model of mechanical tension arm system including supply reel and capstan system, and to simulate dynamic reponse according to parameter variations of the componests in tension arm system. Experiments were carried out in order to prove the validity of the mathematical model. From the results of simulations and experiments, dynamic responses of tape tension and displacement of tension post were analyzed during entire playing mode and they showed the basic characteristics of the tension arm system.

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이중 챔버를 가진 동시증발 시스템 내에서 실린더 홀더를 이용한 18cm 길이의 YBCO coated conductor의 제작 (Fabrication of a 18cm long YBCO coated conductor using a cylindrical tape holder in a double chamber co-evaporation system)

  • 오상현;정국채;염도준
    • 한국초전도학회:학술대회논문집
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    • 한국초전도학회 1999년도 High Temperature Superconductivity Vol.IX
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    • pp.322-325
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    • 1999
  • We fabricated 18cm YBCO coated conductor comprising a YBCO superconducting film and CeO$_2$/YSZ/CeO$_2$ buffer films deposited on a biaxially textured Ni tape. For those film fabrications, we developed a new method, the cylindrical holder in a double chamber. This is alternative to the reel-to-reef method which is commonly tried to fabricate a long YBCO coated tape. We will discuss about the superconducting properties of the 18cm long YBCO coated tapes.

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Smart Card Reader기 Connector 조립 및 Vision 검사용 자동화기기 개발에 관한 연구

  • 노병옥;성하경
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1994년도 추계학술대회 논문집
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    • pp.543-548
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    • 1994
  • This is the paper on the development of assemnly automation and visual inspection system for smart card reader connector. The automation consists of 3 main process injection, assembly and inspection. During the injection, the main pin of a reel. transferred under uniform tension, is cut with an injection interval and positioned precisely to an injection mold by roll feeder after injection. The main base is stacked to a magazine for main pin's exact positionning to a mold . For last effective production, The turn table and pick & place are driver with gears and came by a single monter. We developed the small parts handling technigue for stable supply of micro ist pin and 2nd pin and could determine the orientation and position of those pins. For reliable inspection, We used the vision system which examins the guality of arranged pins with a CCD camera. The connector models which can be manufactured with this system are 8 pin and 10 pin type. The user can select the connector model for production and adjust the torerable error range during the inspection of arranged pins.

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