KR960011451A - Magnetic Gate Measurement Method and Apparatus Using Combination of Radix Harmonics and Even Harmonics - Google Patents

Magnetic Gate Measurement Method and Apparatus Using Combination of Radix Harmonics and Even Harmonics Download PDF

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Publication number
KR960011451A
KR960011451A KR1019940022190A KR19940022190A KR960011451A KR 960011451 A KR960011451 A KR 960011451A KR 1019940022190 A KR1019940022190 A KR 1019940022190A KR 19940022190 A KR19940022190 A KR 19940022190A KR 960011451 A KR960011451 A KR 960011451A
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KR
South Korea
Prior art keywords
current
period
generating
induced voltage
harmonics
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KR1019940022190A
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Korean (ko)
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KR960015562B1 (en
Inventor
김호철
전충삼
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심상철
한국과학기술원
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Priority to KR1019940022190A priority Critical patent/KR960015562B1/en
Priority to GB9517891A priority patent/GB2293456B/en
Publication of KR960011451A publication Critical patent/KR960011451A/en
Application granted granted Critical
Publication of KR960015562B1 publication Critical patent/KR960015562B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

본 발명은 외부 자기장의 크기의 방향을 측정하는 방법 및 장치에 관한 것으로, 일정한 진폭과 주기의 전류를 인가 코일에 인가하여 코아를 자화시키고 측정 코일 양단에 유도되는 유도 전압의 비대칭성을 이용하여 자기장의 크기와 방향을 측정하는 방법 및 장치(플럭스 게이츠 : flux-gates)가 제공된다.The present invention relates to a method and apparatus for measuring the direction of the magnitude of an external magnetic field, by applying a constant amplitude and period of current to the application coil to magnetize the core and using the asymmetry of the induced voltage induced across the measurement coil Methods and apparatus (flux-gates) for measuring the size and orientation of a substrate are provided.

Description

기수 고조파와 우수 고조파의 결합을 이용한 프락스 게이트의 자장 측정 방법 및 장치Method and Apparatus for Measuring Magnetic Field of Proxy Gate Using Combination of Radix Harmonics and Even Harmonics

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 따른 외부 자기 측정 장치의 구성 블럭도.1 is a block diagram of an external magnetic measurement device according to the present invention.

제2도는 본 발명의 측정 원리를 실험하기 위한 장치도.2 is an apparatus diagram for experimenting with the measuring principle of the present invention.

Claims (7)

선정된 진폭과 주기를 가지는 전류를 발생시키는 전류원, 상기 전류원으로부터의 전류에 응답하여 유도 전압을 발생시키는 수단, 상기 유도 전압에 대한 상기 전류원의 주기의 첫번째 반주기 및 다음 반주기 동안의 파워를 발생시키는 수단 및 상기 첫번째 반주기 동안의 파워와 상기 다음 반주기 동안의 파워의 차를 발생시키는 수단을 포함하는 것을 특징으로 하는 외부 자기 측정 장치.A current source for generating a current having a predetermined amplitude and period, means for generating an induced voltage in response to the current from the current source, means for generating power for the first half period and the next half period of the period of the current source to the induced voltage And means for generating a difference between power during the first half cycle and power during the next half cycle. 제1항에 있어서, 상기 유도 전압 발생 수단은 자성 코아, 상기 전류원으로부터의 전류가 인가되고 상기 자성 코아에 동축으로 감겨진 인가 코일 및 상기 인가 코일과 동축으로 감겨진 측정코일을 구비하는 것을 특징으로 하는 외부 자기 측정 장치.The method of claim 1, wherein the induction voltage generating means comprises a magnetic core, an application coil to which a current from the current source is applied and wound coaxially to the magnetic core, and a measurement coil wound coaxially with the application coil. External magnetic measurement device. 제1항에 있어서, 상기 유도 전압의 고조파 성분중 상기 전류의 주파수와 일치하는 성분의 위상이 0인 것을 특징으로 하는 외부 자기 측정 장치.The external magnetic measuring device according to claim 1, wherein a phase of a component corresponding to the frequency of the current among the harmonic components of the induced voltage is zero. 제1항에 있어서, 상기 유도 전압을 증폭시키기 위한 증폭 수단을 더 포함하는 것을 특징으로 하는 외부 자기 측정 장치.The external magnetic measuring device according to claim 1, further comprising amplifying means for amplifying said induced voltage. 선정된 진폭과 주기를 가지는 전류를 유도 전압 발생 수단에 인가하는 단계, 상기 유도 전압 발생 수단으로부터의 유도 전압에 대한 상기 전류의 주기의 첫번째 반주기 및 다음 반주기 동안의 파워를 발생시키는 단계 및 상기 첫번째 반주기 동안의 파워와 상기 다음 반주기 동안의 파워의 차를 발생시키는 단계를 포함하는 것을 특징으로 하는 외부 자기 측정 방법.Applying a current having a predetermined amplitude and period to the induction voltage generating means, generating power for the first half period and the next half period of the period of the current with respect to the induced voltage from the induced voltage generating means and the first half period And generating a difference between the power during and the power during the next half cycle. 제5항에 있어서, 상기 유도 전압 발생 수단은 자성 코아, 상기 전류원으로부터의 전류가 인가되고 상기 자성 코아에 동축으로 감겨진 인가 코일 및 상기 인가 코일과 동축으로 감겨진 측정코일을 구비하는 것을 특징으로 하는 외부 자기 측정 방법.6. The method of claim 5, wherein the induction voltage generating means comprises a magnetic core, an application coil to which a current from the current source is applied and wound coaxially to the magnetic core, and a measurement coil wound coaxially with the application coil. External magnetic measurement method. 제5항에 있어서, 상기 유도 전압의 고조파 성분중 상기 전류의 주파수와 일치하는 성분의 위상이 0인 것을 특징으로 하는 외부 자기 측정 방법.6. The external magnetic measurement method according to claim 5, wherein the phase of the harmonic component of the induced voltage that matches the frequency of the current is zero. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940022190A 1994-09-03 1994-09-03 Method and apparatus for measuring magnetic field KR960015562B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019940022190A KR960015562B1 (en) 1994-09-03 1994-09-03 Method and apparatus for measuring magnetic field
GB9517891A GB2293456B (en) 1994-09-03 1995-09-01 Improved method and apparatus for measuring an external magnetic field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940022190A KR960015562B1 (en) 1994-09-03 1994-09-03 Method and apparatus for measuring magnetic field

Publications (2)

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KR960011451A true KR960011451A (en) 1996-04-20
KR960015562B1 KR960015562B1 (en) 1996-11-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290018A (en) * 1979-08-22 1981-09-15 Rockwell International Corporation Magnetic field strength measuring apparatus with triangular waveform drive means
EP0113221B1 (en) * 1982-12-30 1987-04-08 Nautech Limited Compass systems

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GB2293456A (en) 1996-03-27
GB2293456B (en) 1998-08-05
GB9517891D0 (en) 1995-11-01
KR960015562B1 (en) 1996-11-18

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