MAGNETIC SENSOR WITH WIDE MAGNETIC FIELD MEASUREMENT RANGE

Disclosed is a magnetic sensor with a wide magnetic field measurement range. The magnetic sensor includes: a magnetic field sensing unit with more than one axis; and a magnetic film formed outside the magnetic field sensing unit and having an effect of dispersing the magnetic field substantially app...

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Bibliographische Detailangaben
Hauptverfasser:	CHANG HAN SUNG, PARK JUNG WON, SEO JU HEE, NAM JEONG SIK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Disclosed is a magnetic sensor with a wide magnetic field measurement range. The magnetic sensor includes: a magnetic field sensing unit with more than one axis; and a magnetic film formed outside the magnetic field sensing unit and having an effect of dispersing the magnetic field substantially applied to the magnetic field sensing unit. The magnetic film may include a component parallel to an axial direction of the magnetic sensing unit for the measurement area to be enlarged. The magnetic film is made of a magnetic structure material, and the magnetic structure material may include any one of NiFe, ferrite, and sandust, or a combination thereof. Therefore, it is possible to measure even an area which cannot be measured without an additional magnetic film. 넓은 자계 측정범위를 갖는 자기센서가 개시된다. 자기센서는 일축 이상의 자기장 감지부와, 그 자기장 감지부의 외부에 형성되어 자기장 감지부에 실질적으로 인가되는 자기장을 분산시키는 효과를 가지는 자성막을 포함한다. 자성막은 측정영역을 확대하고자 하는 자기감지부의 축방향과 평행인 성분을 포함할 수 있다. 자성막은 자성구조 물질로 구성되며, 상기 자성구조 물질은 NiFe, 페라이트, 샌더스트 중 어느 한 가지 또는 이들의 조합을 포함할 수 있다.