• 제목/요약/키워드: Voice-coil

검색결과 164건 처리시간 0.031초

밀폐공간 구조 요구자를 위한 더미 표준화 개발 방안 (Plan for the Development of a Standardized Dummy for Persons in Need of Rescue in a Confined Space)

  • 최서연;이동호;김형준
    • 대한안전경영과학회지
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    • 제18권4호
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    • pp.99-105
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    • 2016
  • This study was conducted to develop a dummy in an environment similar to the human body, to prepare a standard for evaluation and to present the process of the production in order to evaluate the performance of the robot that can detect the persons needing rescue in a confined space, who are difficult for fire-fighting officials to rescue in case of fire and disaster. As a result, a standard for evaluation was developed and standardized into four parts 'Normal,' 'Risk Stage 1,' 'Risk Stage 2' and 'Risk Stage 3'based on the number of breath cycles, carbon dioxide concentration, core temperature and criteria for hearing to recognize the voice. In addition, in order to produce a dummy, fever, breathing capacity and voice output function were compared and analyzed. This study has significance that it built up basic data of the method of producing the actual dummy, by presenting characteristics and controlling methods using the waterproof insulation heating coil for the function, solenoid valve for the consecutive output of breathing capacity and USB program sound board for voice output.

반도체 소자 Pick &Placer 및 제어 알고리즘 개발 (Development of Control Algorithm and Pick & Placer)

  • 심성보;김재희;유범상
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2004년도 추계학술대회 논문집
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    • pp.1339-1343
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    • 2004
  • This paper presents a development of the control algorithm and Pick & Placer. The Pick & Placer provides a powerful multi-task system that includes both graphical and remote interface. Users can easily set up sorting parameters and record important data including wafer number, data, and operator information. This System sets up a dustproof device and massively machined components to provide an extremely stable sorting environment. Precise resolution and accuracy result from using machine vision, a pneumatic slide drive and close -looped positioning.

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민감도 함수의 최대치 제어를 통한 강인제어 (Robust Control via Peak Control of Sensitivity Function)

  • 서상민
    • 제어로봇시스템학회논문지
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    • 제15권11호
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    • pp.1071-1075
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    • 2009
  • This article describes a robust control method by using peak control of a sensitivity function in the state-feedback control systems. This method apparently reduces the peak, and as a result makes closed loop systems more stable. The designed closed loop systems also make the response to an external step disturbance more fast with a lower undershoot. At the conclusion, it is verified that the proposed method enhances robust stability and robust performance to parametric uncertainties through $\mu$-plot.

Positioning control of a redundant actuator

  • Sasaki, M.;Setta, M.;Satoh, K.;Fujisawa, F.
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1994년도 Proceedings of the Korea Automatic Control Conference, 9th (KACC) ; Taejeon, Korea; 17-20 Oct. 1994
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    • pp.605-610
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    • 1994
  • This paper discusses the solution to the precise positioning control problem applied to a simple model of a dual stage or redundant positioner. The dual stage actuator presented here uses a VCM(Voice Coil Motor) as a coarse actuator and a piezoelectric actuator as a fine actuator. By adopting controllers with two-degree-of-freedom and by optimizing H$_{2}$ faster precise tracking can be realized. Experimental and numerical results are presented to demonstrate the control effects.

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스마트폰 부품의 기술 현황 및 전망 - 중국시장과 VCM 특허로 본 스마트폰 카메라 동향

  • 김영준
    • 광학세계
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    • 통권146호
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    • pp.28-32
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    • 2013
  • 카메라 없는 모바일 기기는 상상할 수 없을 만큼 스마트폰 카메라가 대중화되어 있다. 모바일 기기에는 카메라가 필수 요소이며, 특히 스마트폰에는 자동초점 카메라 모듈이 기본으로 장착되어 있다. 따라서 카메라모듈 시장은 더 이상의 논의가 무의미할 정도로 전망이 아주 밝다. (그림1)은 기본적인 카메라모듈의 구조로 국내 공급업체와 증권사의 자료를 참조하였다. 스마트폰에 카메라가 기본적으로 장착되어 있는 만큼 기술적으로나 사업적으로 많은 이슈가 있다. 본고에서는 중국 시장과 자동초점 카메라모듈에 적용되는 액추에이터의 일종인 VCM(Voice Coil Motor)의 특허 분석을 통해 스마트폰 카메라의 동향에 대해서 기술하고자 한다.

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소형 칩의 고속 표면실장을 위한 충격력 제어 장치의 설계 (A Design of Impact Control Device for High-speed Mounting of Micro-Chips)

  • 이덕영;김병만;심재홍;조형석
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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    • pp.121-121
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    • 2000
  • This paper presents a design of macro-micro system for high-speed mounting of micro-chips. A macro motion device is driven by DC servomotor and ball screw mechanism. To obtain fast response, a micro motion device utilizes a precision elector magnetic actuator In order to reduce peak impact force, We evaluate the design parameters that have an effect on it. And a characteristic of response is simulated using PID controller in velocity and force control.

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