• Title/Summary/Keyword: 계측기

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Development of a Techniques of the Performance Test for a Radiation Protection Devices and it's International Standards (방사선 방호용 계측기 성능평가 기술 개발 및 국제 표준)

  • Choi, Kil-Oung;Won, Sung-Ho;Kim, Jung-Ho;Hah, Suck-Ho;Yi, Chul-Young;Kim, Hyun-Moon;Lee, Min-Kee
    • Journal of Radiation Protection and Research
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    • v.33 no.1
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    • pp.1-12
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    • 2008
  • International Standardization in all technical area is gaining its momentum as its impact and implication over global trade is directly linked. The worldwide competition to secure a dominant position in the standardization process is ever growing over the years. In 2005, the International Technical Committee on Nuclear Instrumentation, which is a subunit of International Electro-technical Commission (IEC), was held in Korea under the auspices of MOST (Ministry of Science and Technology). Korea has adopted its Rule and Regulation as the National Standard. As a part of a link to National Mid-and Long-term Atomic Energy R&D Program of MOST, the technical development of a performance test for the radiation monitors was carried out under mechanical environment and electromagnetic immunity conditions. The characteristics of the radiation fields were also evaluated under the conditions and introduced to a techniques of performance test for the radiation protection instrumentation adopted IEC61526 standards and it's results was analyzed. We would like to share the experience gained in these efforts, failure as well as success, and to discuss the problems encountered and serious consideration to be taken into account in the future endeavor.

Development of Control System for Thimble Handling Equipment for Neutron Flux Mapping (노내 핵계측 검출기 안내관 인출 및 삽입 장비 제어시스템의 개발)

  • Byun, Seung-Hyun;Cho, Byung-Hak;Park, Joon-Young;Lee, Jae-Kyung
    • Proceedings of the KIEE Conference
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    • 2006.07d
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    • pp.1995-1996
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    • 2006
  • 검출기 안내관은 노내 핵계측 계통의 중성자 분포 측정을 위한 이동형 검출기의 이동경로를 제공할 뿐만 아니라 원자로 냉각수 계통의 압력경계를 유지하는 안전성 등급의 중요한 설비이다. 그러나, 인출과 삽입을 위한 검출기 안내관 취급은 의외로 낙후되어 작업자의 인력에만 의존하고 있는 실정이며, 원자로 격납용기 내부에 위치한 고방사선 지역에서 작업이 수행되고 있는 실정이다. 따라서 노내 핵계측 계통의 검출기 안내관의 안정적인 관리를 위해 검출기 안내판을 일정한 힘으로 인출하고 삽입할 수 있는 자동화시스템의 개발이 이루어지고 있다. 전력연구원에서 개발한 안내관 취급기구는 롤러에 의해 안내관을 파지하고, DC 모터 구동에 의해 안내관을 인출하고 삽입하는데, 본 논문에서는 안내관 취급 기구의 제어 시스템 구성과, 롤러와 안내관 사이에 발생하는 슬립을 고려한 제어기 구조를 제안하고, 실험을 통해 구현한 제어 시스템의 효용성을 보인다.

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Analysis of Slope Behavior Using FBG Sensor and Inclinometer (광섬유 센서와 지중경사계를 이용한 사면의 거동 분석)

  • 장기태;한희수;유병선
    • Journal of the Korean Geotechnical Society
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    • v.19 no.6
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    • pp.397-406
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    • 2003
  • Several sensor systems are used to estimate the reinforcing effect of stabilizing pile in slopes, and to find a failure surface in slopes effectively. FBG(Fiber Brags Crating) sensor, V/W(Vibrating Wire) sensor and inclinometer have shown a great potentiality to serve real time health monitoring of the reinforcing structures. Field tests and test results have shown great solutions for sensor systems of Smart Structures. The purpose of this research is to seek for the relationships among the slope movement and the reinforcing effect of stabilizing pile, and the strain distribution of stabilizing pile in a active zone by analyzing the data from the in-situ measurement so that the possible failure surface should be well defined based on the relationships. The field test results have shown that the data by FBG sensor are well coincided with those of V/W sensor and inclinometer, and the reinforcing effect of the stabilizing pile is good enough.