• Title/Summary/Keyword: Field measuring

Search Result 2,053, Processing Time 0.036 seconds

Design of Intelligent Type for Color Matching and Measuring Systems (지능형 칼라 맞춤 및 조제 시스템 설계)

  • 류상문;한일석;박병준;안태천
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2000.10a
    • /
    • pp.156-156
    • /
    • 2000
  • In this paper, a new method for colour measuring is presented using fuzzy modeling technique. The fuzzy and polynomial inferences are used for obtaining RGB characteristic curve. The eight RGB real data from expert dye-stuff manufacturer, are simulated. The results show that the proposed method will is more excellent than other methods, in the colour measuring process of textile field.

  • PDF

A New Method for Colour Measuring Using Fuzzy Modeling Technique (퍼지 모델링 기법을 이용한 새로운 칼라 메저링 방법)

  • 류상문;한일석;박병준;안태천
    • Proceedings of the Korean Institute of Intelligent Systems Conference
    • /
    • 2000.05a
    • /
    • pp.183-186
    • /
    • 2000
  • In this paper, a new method for colour measuring is presented using fuzzy modeling technique. The fuzzy and polynomial inferences are used for obtaining RGB characteristic curve. The eight RGB real data from expert dye-stuff manufacturer, are simulated. The results show that the proposed method will is more excellent than other methods, In the colour measuring process of textile field.

  • PDF

A Field Measuring Study on the Thermal Environment of Human Surrounding in the Classroom Equipped with Ceiling Unit (천장형 유닛을 설치한 교실 내의 인체 주변 온열환경에 관한 실측연구)

  • Cho Sung-Woo;Im Young-Bin;Lee Kyung-Hee
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
    • /
    • v.18 no.3
    • /
    • pp.240-246
    • /
    • 2006
  • This paper performed to investigate on vertical temperature distribution, effective draft temperature (ETD) and PMV (Predicted Mean Vote) in the classroom, which is located YangSan city (Kyungsangnam-Do), Korea, is equipped with ceiling unit. The vertical temperature difference between F.L+10 cm (ankle) and F.L+120 cm (neck) of a measuring point which is adjacent corridor in the classroom showed about $1^{\circ}C$ but of measuring point which is adjacent outdoor expressed up to $4^{\circ}C$, The effective draft temperature (ETD) is -2.3 and -0.52 and 0.67 at near ceiling unit but is 1.2 and 3.3 at far from ceiling unit. The PMV of total classroom showed the range of 'Cold' and 'Slightly Cold.' Therefore, to achieve comfort condition in the classroom is equipped with ceiling unit, the location of ceiling unit and discharge angle and discharge distance from ceiling unit are very important elements.

Analysis of the Rotational Magnetic Field using the FEM and the 2-Dimensional Permeability Tensor (유한 요소법과 이차원 텐서를 이용한 회전자계의 특성 해석)

  • Lee, Chang-Hwan;Kim, Hong-Kyu;Jung, Hyun-Kyo;Hong, Sun-Ki
    • Proceedings of the KIEE Conference
    • /
    • 1996.07a
    • /
    • pp.169-171
    • /
    • 1996
  • Recently, the finite element analysis(FEM) using two dimensional magnetic permeability tensor was introduced to calculate the magnetic field considering the rotational hysteresis. We obtain the tensor matrix from the measured data using two-dimensional magnetic measuring apparatus. We calculate the induced magnetic flux density and the rotational hysteresis loss under the model with the same condition with the measuring apparatus. Therefore we show that FEM with tensor can be used to calculate the magnetic flux density and the rotational hysteresis loss in the arbitrary rotational magnetic field.

  • PDF

A Study on Statistical Analysis of Local Ice Loads Measured during the Arctic Voyage of the IBRV ARAON

  • Kwon, Yong-Hyeon;Choi, Kyungsik;Lee, Tak-Kee
    • Journal of Advanced Research in Ocean Engineering
    • /
    • v.1 no.3
    • /
    • pp.186-197
    • /
    • 2015
  • In summer 2010, field measurements of local ice loads were carried out in the Arctic Ocean using the Korean first icebreaking research vessel, ARAON. In some previous studies by the authors, several investigations for the data measured at 2010 including the relationship between the measuring points and ice loads, the possibility for observation of higher ice load and the relationship between the ship speed and ice loads were reported. During 10 days in August 2013, new field measurements were performed in similar waters of the Arctic Ocean using the same vessel, ARAON. The aim of this study is to investigate the statistical properties of 2013 measurements and compare results by two periods.

Evaluation of Passive Cooling Effect on Roof Pond through Field Observation (관측에 의한 옥상 수공간의 자연냉각효과 평가)

  • Jeong, Seong-Jin;Choi, Dong-Ho;Lee, Bu-Yong
    • 한국태양에너지학회:학술대회논문집
    • /
    • 2008.11a
    • /
    • pp.85-89
    • /
    • 2008
  • This study carried out field observations of measuring thermal environment, especially evaluating amount of water evaporation at roof Pond by field observations during the summer. Thermal environment measuring was categorized as air temperature, water temperature of roof pond, surface temperature, globe temperature, short and long wave radiation, net radiation, and amount of water evaporation by water level measurement. Results from this study could be used as fundamental for reducing heat Island phenomena.

  • PDF

A Study on the System Design for Measuring the Property of Broadband AC Magnetic Sensors (광대역 교류 자기센서 특성 시험장치 설계에 관한 연구)

  • Chung, Hyun-Ju;Yang, Chang-Seob;Jung, Woo-Jin
    • Proceedings of the KIEE Conference
    • /
    • 2015.07a
    • /
    • pp.685-686
    • /
    • 2015
  • This paper describes design results of the measurement system to test the properties of broadband AC magnetic field sensors used in weapon system. This measurement system consists of 3-axis helmholtz coil, signal generator, signal amplifier, sensor data acquisition unit and measurement & analysis controller including the operating software. This system is able to measure various properties of AC magnetic field sensor such as sensitivity, linearity and dynamic response in the frequency of 1 Hz to 10 kHz. The performance of this system was verified by measuring and analyzing the property of a MAG 639, standard magnetic field sensor of bartington instruments, with this developed system.

  • PDF

Establishment of strain measurement system for evaluation of strain effect in HTS tapes under magnetic field

  • Dedicatoria, Marlon J.;Shin, Hyung-Seop
    • Progress in Superconductivity and Cryogenics
    • /
    • v.13 no.4
    • /
    • pp.14-17
    • /
    • 2011
  • The evaluation of the electromechanical properties of HTS CC tapes is one of the foremost procedures to be done to ensure the applicability of superconducting wires to electric devices. A precise measurement of the stress and strain is important in deriving the mechanical properties under operating environment. Up to now, there is no standard test method yet for the electromechanical property evaluation of HTS tapes under self field and external magnetic field although there are already reports on the different devices used to evaluate these properties. Strain can be measured by adopting a strain gauge or a high resolution double extensometer. In this study, strain effect on $I_c$ in HTS CC tapes under magnetic fields was evaluated. Comparison of advantages and setback of strain measuring devices were discussed. In addition, a dual strain measurement system using both the SG and extensometer may be practical to lessen the burden in case one of the measuring devices does not work well.

Improvement of Power Capability and Field Uniformity with Tapered Coaxial Matching Units in Strip Line for Measuring Electromagnetic Immunity of Vehicular Components

  • Chung, Yeon-Choon;Kang, Tae-Won;Park, Dong-Chul
    • Journal of Electrical Engineering and information Science
    • /
    • v.2 no.5
    • /
    • pp.60-64
    • /
    • 1997
  • The design process and construction method of a strip line is described for measuring radiated susceptibility of vehicular components having electrical cables more than 2 min length. he characteristic impedance of the trip line was determined 90$\Omega$ to obtain the field uniformity of $\leq$${\pm}$3 dB in the frequency range from 100 kHz to 500 MHz. Tapered coaxial lines were used instead of the traditional lumped circuit element for the impedence matching units, therefore, the strip line has high power capability. Using these techniques, the field uniformity and power capability of a strip line could be considerably improved.

  • PDF

Field Measurements on Noise Emission from Water Supply Installations in Bathroom of Apartment House (공동주택 욕실 급수소음의 현장 측정방법)

  • Jeong, G.C.;Kook, C.;Kim, S.W.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2005.11a
    • /
    • pp.341-344
    • /
    • 2005
  • The method of measurement for field tests on noise emission from water supply installations in bathroom of apartment house. This part of standard gives detailed descriptions for Held tests on noise emission from water supply installations in bathroom, bed room and living room of apartment house. Noise emission affect from working pressure and quantity of flow. The measuring position have to investigated measuring for emission noise.

  • PDF