KR970066573A - 다이폴 모멘트 검출기 및 로컬라이저 - Google Patents

다이폴 모멘트 검출기 및 로컬라이저 Download PDF

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KR970066573A
KR970066573A KR1019970007232A KR19970007232A KR970066573A KR 970066573 A KR970066573 A KR 970066573A KR 1019970007232 A KR1019970007232 A KR 1019970007232A KR 19970007232 A KR19970007232 A KR 19970007232A KR 970066573 A KR970066573 A KR 970066573A
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magnetic field
magnetic
dipole
sensors
array
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KR100244005B1 (ko
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헤롤드 씨 길버트
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완다 케이. 덴슨-로우
에이치이 홀딩스, 인크. 디비에이 휴우즈 일렉트로닉스
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/02Measuring direction or magnitude of magnetic fields or magnetic flux
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/081Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

본 발명은 자기계 센서(11)의 어레이로부터 구해진 자기계 데이타를 처리해서 자기 다이폴(13)의 위치 및 속도를 출력하는 처리 방법(20) 및 장치(10)에 관한 것이다. 상기 방법(20) 및 장치(10)에서는, (a) 자기 다이폴의 실제 자계 측정값들의 세트가 자기 센서들(11)의 어레이를 사용해서 수집된다(21). 이어서, (b) 자기 다이폴에 대한 위치가 가정된다(20). 그리고 (c) 상기 가정된 위치에 있는 자기 다이폴에 의해서 형성된 산정된 자계 측정값의 세트가 결정된다(23). 다음 (d) 실제 자계 측정값이 산정된 자계 측정값과 비교된다.(24). 이어서 자기 센서들의 어레이의 검출 범위 내의 모든 가정된 위치들에 대하여 단계 (b) 내지 (d)가 반복된다. 다이폴의 위치 또는 장소가 디스플레이(27) 상에서 볼 수 있도록 표시된다(27).

Description

다이폴 모멘트 검출기 및 로컬라이저
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 제1도의 장치에 사용된 본 발명에 따른 처리 방법 혹은 알고리즘을 나타내는 흐름도.

Claims (7)

  1. 공간적으로 분산된 자기 센서(11)의 어레이를 사용해서 자기 다이폴(13)을 검출 및 로컬라이징 하는 방법(20)에 있어서, a) 복수의 자기 센서들을 사용해서 자기 다이폴의 실제 자계 측정값의 세트를 수집하는 단계(21), b) 상기 자기 다이폴의 위치를 가정하는 단계(22),c) 상기 가정된 위치에 있는 자기 다이폴에 의해서형성되는 산정된 자계 측정값의 세트를 결정하는 단계(23), d) 상기 실제 자계 측정값을 상기 산정된 자계 측정값과 비교하는 단계(24), 및 e) 상기 자기 센서들의 어레이의 검출 범위 내의 모든 가정된 위치들에 대해서 상기 단계 b) 내지 d)를 반복하는 단계(26)를 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  2. 제1항에 있어서, 상기 위치 데이터를 표시하는 단계(27)를 더 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  3. 제1항에 있어서, 상기 자기 센서들의 어레이의 검출 범위 내의 모든 가정된 위치에 대하여 단계 b) 내지 d)를 반복하는 단계(26)는, 상기 산정된 자계값에 상기 측정된 자계값을 곱해서 상기 센서들의 어레이에 대해서 그 결과값을 가산하므로써 상기 측정된 자계값과 상기 센서들의 어레이에 대한 산정된 자계값 각각과의 상관을 취하는 단계, 및 상기 결과로서 얻어진 상관값들 중 하나가 다른 상관값보다 상당히 큰 값을 갖거나 소정의 임계값보다 크면 상기 계산된 값들에 대응하는 위치에 대한 검출값이 보다 큰 상관값으로 검출되었음을 디클레어링(declaring)하는 단계를 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  4. 제3항에 있어서, 상기 위치 데이터를 표시하는 단계(27)를 더 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  5. 공간적으로 분산된 자기 센서(11)의 어레이를 사용해서 자기 다이폴(13)을 검출 및 로컬라이징 하는 방법(20)에 있어서, a) 복수의 자기 센서들을 사용해서 자기 다이폴의 실제 자계 측정값의 세트를 수집하는 단계(21), b) 소정의 필터를 사용해서 실제 자계 측정값을 필터링하는 단계(28), c) 상기 자기 다이폴의 위치를 가정하는 단계(22), d) 상기 가정된 위치에서의 자기 다이폴에 의해서 형성되는 산정되는 산정된 자계 측정값의 세트를 결정하는 단계(23), e) 상기 동일한 소정의 필터를 사용해서 산정된 자계 측정값을 필터링 하는 단계(29), f) 상기 실제 자계 측정값과 상기 산정된 자계 측정값을 비교하는 단계(24), 및 g) 상기 자기 센서들의 어레이의 검출 영역 내의 모든 가정된 위치에 대하여 단계 c) 내지 f)를 반복하는 단계(26)를 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  6. 제3항에 있어서, 상기 위치 데이터를 표시하는 단계(27)를 더 포함하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 하는 방법.
  7. 자기 다이폴(13)을 검출 및 로컬라이징 하는 장치(10)에 있어서, 자기 센서들(11)의 어레이, 상기 자기 센서들(11)의 어레이에 결합되며, 기본 자기 다이폴 식들로 표현되는 산정된 자계 신호들의 어레이를 제공하기 위해서 복수의 위치들 각각에서의 센서들(11)의 어레이에 의해서 검출될 자계 특징의 산정값을 저장하고(23), 상기 측정된 자계값들을 제공하기 위해서 검출될 예정의 자기 다이폴(13)의 존재시에 센서들 각각에서 측정된 자계를 나타내는 자계 신호들을 수집하고(21), 상기 측정된 자계신호를 시간 및 공간적으로 필터링하므로써 센서들(11) 각각에서 측정된 자계의 공간 및 시간 변한량을 제거하며, 상기 산정된 자계값들에 상기 측정된 자계값들을 곱해서 상기 센서들(11)의 어레이에 대하여 그 결과값을 가산하므로써 상기 측정된 자계값들과 상기 센서들(11)의 어레이에 대한 산정된 자계값 각각과의 상관을 취하고(24), 상기 상관값들 중 하나가 다른 상관값보다도 상당히 큰 값을 갖고 소정의 임계값보다 크며, 다이폴의 위치가 상기 상당히 큰 값으로 생성된 측정된 자계 신호로 표현된 위치에 대응하면 다이폴의 위치를 식별하는 처리 수단(16), 및 상기 식별된 다이폴(13)의 위치 및 속도를 표시하는 표시 수단(17)을 구비하는 것을 특징으로 하는 자기 다이폴 검출 및 로컬라이징 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970007232A 1996-03-05 1997-03-05 다이폴 모멘트 검출기 및 로컬라이저 KR100244005B1 (ko)

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US08/611,291 1996-03-05
US08/611,291 US5731996A (en) 1996-03-05 1996-03-05 Dipole moment detector and localizer

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KR100244005B1 KR100244005B1 (ko) 2000-02-01

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