[특허]Magnetoresistive linear displacement sensor, angular displacement sensor, and variable resistor using a moving domain wa

Magnetoresistive linear displacement sensor, angular displacement sensor, and variable resistor using a moving domain wa 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01B-007/00 G01R-033/02 H01L-043/00
출원번호	US-0130480 (1993-10-01)
발명자 / 주소	Prinz Gary A. (Alexandria VA)
출원인 / 주소	The United States of America as represented by the Secretary of the Navy (Washington DC 06)
인용정보	피인용 횟수 : 43 인용 특허 : 0

초록 ▼

A giant magnetoresistant displacement sensor includes at least one layered structure. This layered structure includes a harder magnetic (ferromagnetic or antiferromagnetic) layer having a fixed magnetic state, a second, softer, magnetic layer, and a metal layer interposed between and contacting these two layers to prevent exchange coupling between the two layers. The sensor also includes one or more indexing magnets for inducing a domain wall, at a measurand position, between regions of nonaligned magnetic fields in the softer magnetic layer; and an ohmmeter for measuring electrical resistance between points on opposite sides of the structure. In operation, the indexing magnets for inducing a domain wall are positioned relative to the giant magnetoresistant strip. The resistance across the strip is measured, and from this resistance measurement the position of the domain wall is determined. The present invention is also a variable resistor, which is operated by positioning the magnets for inducing the domain wall at a selected position, to set the resistance across the strip to a desired value.

대표청구항 ▼

A sensor for measuring the displacement between a first workpiece and a second workpiece, comprising: a giant magnetoresistant strip fixed to said first workpiece, wherein said magnetoresistant strip further comprises at least one laminate structure, wherein said laminate structure comprises a first hard ferromagnetic or antiferromagnetically-pinned layer, a second magnetic layer over said first hard ferromagnetic or antiferromagnetic layer, wherein said second magnetic layer comprises a softer magnetic material than said first layer, and a conductive layer interposed between and contacting said first and second layers, for preventing essentially all exchange coupling between said first and second layers; inducing means for inducing a domain wall, at a measurand position, between regions of magnetic fields in said second magnetic layer, wherein said magnetic fields are not aligned with each other, wherein said inducing means is fixed to said second workpiece; and measuring means for measuring electrical resistance between points on said magnetoresistant strip, thereby measuring said position of said domain wall, thereby measuring the position of said second workpiece relative to said first workpiece.

이 특허를 인용한 특허 (43)

Anthony M. Mack ; Zheng Gao ; Nurul Amin ; Sining Mao ; Richard Michel, Data head and method using a single antiferromagnetic material to pin multiple magnetic layers with differing orientation.
상세보기
Mack, Anthony M.; Gao, Zheng; Amin, Nurul; Mao, Sining; Michel, Richard, Data head and method using a single antiferromagnetic material to pin multiple magnetic layers with differing orientation.
상세보기
Hayden, Oliver; Rührig, Manfred, Device and method for concentrating and detecting magnetically marked cells in laminarly flowing media.
상세보기
Mao Sining ; Murdock Edward S., Enhanced spin-valve/GMR magnetic sensor with an insulating boundary layer.
상세보기
Roger Wappling SE, GMR sensor with a varying number of GMR layers.
상세보기
Chen, Lujun; Giusti, James H.; Fernandez-de-Castro, Juan J., Giant magnetoresistive sensor having selfconsistent demagnetization fields.
상세보기
Mao Sining ; Hu Shouxiang, Giant magnetoresistive sensor having weakly pinned ferromagnetic layer.
상세보기
Holloway Henry ; Kubinski David John, Giant magnetoresistors with high sensitivity and reduced hysteresis.
상세보기
Tiernan Timothy C. ; Jarratt ; Jr. Raymond L., Giant magnetorestive sensors and sensor arrays for detection and imaging of anomalies in conductive materials.
상세보기
Gary A. Prinz ; Michael M. Miller, High efficiency magnetic sensor for magnetic particles.
상세보기
Prinz, Gary A.; Miller, Michael M., High efficiency magnetic sensor for magnetic particles.
상세보기
Stuve, Steven R, Linear position sensor.
상세보기
Jian-Gang Zhu ; Youfeng Zheng ; Gary A. Prinz, Magnetic device and method of forming same.
상세보기
Yamamoto,Masahiko; Nakatani,Ryoichi; Endo,Yasushi, Magnetic memory array, method for recording in a magnetic memory array and method for reading out from a magnetic memory array.
상세보기
Zhu, Xiaochun; Zhu, Jian-Gang, Magnetic memory element and memory device including same.
상세보기
Yamamoto, Masahiko; Nakatani, Ryoichi; Endo, Yasushi, Magnetic memory, magnetic memory array, method for fabricating a magnetic memory, method for recording in a magnetic memory and method for reading out from a magnetic memory.
상세보기
Sugitani Nobuyoshi,JPX, Magnetic rotation detector for detecting characteristic of a rotary member.
상세보기
Masashi Sano JP; Yoshihiro Tsuchiya JP; Satoru Araki JP, Magnetoresistance effect film and magnetoresistance effect type head having specified antiferromagnetic promote layer.
상세보기
Umemoto Hideki,JPX ; Hiraoka Naoki,JPX ; Fukui Wataru,JPX ; Ohashi Yutaka,JPX ; Yokotani Masahiro,JPX, Magnetoresistance sensing device with increased magnetic field detection efficiency.
상세보기
Dahlberg E. Dan ; Moran Timothy J., Magnetoresistance sensor having minimal hysteresis problems.
상세보기
Tchertkov Igor ; Klinkhamer Jon, Magnetoresistive displacement sensor and variable resistor using a moving domain wall.
상세보기
Wincheski, Russell A.; Namkung, Min; Simpson, John W., Magnetoresistive flux focusing eddy current flaw detection.
상세보기
Mao, Sining; Mack, Anthony M.; Everitt, Brenda A.; Murdock, Edward S.; Gao, Zheng, Method of fabricating a spin valve/GMR sensor having a synthetic antiferromagnetic layer pinned by Mn-alloy.
상세보기
Prinz, Gary A.; Miller, Michael M., Method of making high efficiency magnetic sensor for magnetic particles.
상세보기
Huggins, Harold A., Methods of fabricating magnetoresistive memory devices.
상세보기
Knox,Peter; Cook,Neil; Golman,Klaes; Johannesson,Haukur; Axelsson,Oksar; Ardenkjaer Larsen,Jan Henrik, NMR spectroscopic in vitro assay using hyperpolarization.
상세보기
Engel Bradley N., Pinned synthetic anti-ferromagnet with oxidation protection layer.
상세보기
Moura, Jairo T.; Gilchrist, Ulysses; Caveney, Robert T., Sealed robot drive.
상세보기
Umemoto Hideki,JPX ; Hiraoka Naoki,JPX ; Fukui Wataru,JPX ; Ohashi Yutaka,JPX ; Yokotani Masahiro,JPX, Sensing device for detecting the angular displacement and relative position of a member of magnetic material.
상세보기
Halder,Ernst; Diegel,Marco; Mattheis,Roland; Steenbeck,Klaus, Sensor element for revolution counter.
상세보기
Diegel, Marco; Mattheis, Roland, Sensor element with laminated and spiral structure and without a power supply for a revolution counter.
상세보기
Saito, Akira, Spin injection magnetic domain wall displacement device and element thereof.
상세보기
Saito, Akira, Spin injection magnetic domain wall displacement device and element thereof.
상세보기
Everitt Brenda A. ; van Ek Johannes, Spin valve magnetoresistive sensor using permanent magnet biased artificial antiferromagnet layer.
상세보기
Mao, Sining; Mack, Anthony M.; Everitt, Brenda A.; Murdock, Edward S.; Gao, Zheng, Spin valve/GMR sensor using synthetic antiferromagnetic layer pinned by Mn-alloy having a high blocking temperature.
상세보기
Dahlberg E. Dan ; Moran Timothy J., Spin-valve magnetoresistance sensor having minimal hysteresis problems.
상세보기
Brenda A. Everitt, Storage system having read head utilizing GMR and AMr effects.
상세보기
Worledge, Daniel Christopher; Trouilloud, Philip Louis; Abraham, David William; Schmid, Joerg Dietrich, Techniques for electrically characterizing tunnel junction film stacks with little or no processing.
상세보기
Worledge, Daniel Christopher; Trouilloud, Philip Louis; Abraham, David William; Schmid, Joerg Dietrich, Techniques for electrically characterizing tunnel junction film stacks with little or no processing.
상세보기
Worledge, Daniel Christopher; Trouilloud, Philip Louis; Abraham, David William; Schmid, Joerg Dietrich, Techniques for electrically characterizing tunnel junction film stacks with little or no processing.
상세보기
Worledge, Daniel Christopher; Trouilloud, Philip Louis; Abraham, David William; Schmid, Joerg Dietrich, Techniques for electrically characterizing tunnel junction film stacks with little or no processing.
상세보기
Kobayashi, Nobukiyo; Yano, Takeshi; Ohnuma, Shigehiro; Shirakawa, Kiwamu; Masumoto, Tsuyoshi, Thin-film magnetic field sensor.
상세보기
Worledge, Daniel Christopher; Trouilloud, Philip Louis; Abraham, David William; Schmid, Joerg Dietrich, Wafer for electrically characterizing tunnel junction film stacks with little or no processing.
상세보기

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

연합인증

Magnetoresistive linear displacement sensor, angular displacement sensor, and variable resistor using a moving domain wa 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Magnetoresistive linear displacement sensor, angular displacement sensor, and variable resistor using a moving domain wa 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트