Published June 1, 2019 | Version v1
Publication Metadata-only

Meander anisotropic magnetoresistance bridge geomagnetic sensors

Creators

  • 1. Vietnam National University, Hanoi
  • 2. Hanoi Pedagogical University 2
  • 3. Hanoi University of Science and Technology

Description

Anisotropic magnetoresistive (AMR) sensors have long been used for specific industrial applications. Their field detection sensitivity can be improved using magnetic flux concentrators to amplify the magnetic field strength sensed at the sensor. We report on the design and fabrication of a micrometer-size meander AMR bridge sensor with an effective AMR branch length of 150. This sensor geometry has enabled us to achieve a magnetic sensitivity as high as 1.25 mV/Oe (or 0.45 mV/V/Oe), which is an enhancement by a factor of about 300 compared to conventional AMR thin film-based sensors. Our study paves a new pathway for the design and application of geomagnetic devices.

⚠️ This is an automatic machine translation with an accuracy of 90-95%

Translated Description (Arabic)

لطالما تم استخدام مستشعرات المقاومة المغناطيسية متباينة الخواص (AMR) لتطبيقات صناعية محددة. يمكن تحسين حساسية اكتشاف المجال باستخدام مركزات التدفق المغناطيسي لتضخيم قوة المجال المغناطيسي المستشعرة في المستشعر. نبلغ عن تصميم وتصنيع مستشعر جسر AMR متعرج بحجم الميكرومتر مع طول فرع AMR فعال يبلغ 150. مكنتنا هندسة المستشعر هذه من تحقيق حساسية مغناطيسية تصل إلى 1.25 مللي فولط/أوي (أو 0.45 مللي فولط/فولط/أوي)، وهو تعزيز بعامل حوالي 300 مقارنة بمستشعرات AMR التقليدية القائمة على الأغشية الرقيقة. تمهد دراستنا مسارًا جديدًا لتصميم وتطبيق الأجهزة المغناطيسية الأرضية.

Translated Description (English)

Anisotropic magnetoresistive (AMR) sensors have long been used for specific industrial applications. Their field detection sensitivity can be improved by using magnetic flux concentrators to amplify the magnetic field strength sensed at the sensor. We report on the design and fabrication of a micrometer-size meander AMR bridge sensor with an effective AMR branch length of 150. This sensor geometry has enabled us to achieve a magnetic sensitivity as high as 1.25 mV/Oe (or 0.45 mV/V/Oe), which is an enhancement by a factor of about 300 compared to conventional AMR thin film-based sensors. Our study paves a new pathway for the design and application of geomagnetic devices.

Translated Description (French)

Anisotropic magnetoresistive (AMR) sensors have long been used for specific industrial applications. Their field detection sensitivity can be improved using magnetic flux concentrators to amplify the magnetic field strength sensed at the sensor. We report on the design and fabrication of a micrometer-size meander AMR bridge sensor with an effective AMR branch length of 150. This sensor geometry has enabled us to achieve a magnetic sensitivity as high as 1.25 mV/Oe (or 0.45 mV/V/Oe), which is an enhancement by a factor of about 300 compared to conventional AMR thin film-based capteurs. Our study paves a new pathway for the design and application of geomagnetic devices.

Translated Description (Spanish)

Anisotrópico magnetoresistive (AMR) sensors have long been used for specific industrial applications. Their field detection sensitivity can be improved using magnetic flux concentrators to amplify the magnetic field strength sensed at the sensor. We report on the design and fabrication of a micrometer-size meander AMR bridge sensor with an effective AMR branch length of 150. This sensor geometry has enabled us to achieve a magnetic sensitivity as high as 1.25 mV/Oe (or 0.45 mV/V/Oe), which is an enhancement by a factor of about 300 compared to conventional AMR thin film-based sensors. Our study paves a new pathway for the design and application of geomagnetic devices.

Additional details

Additional titles

Translated title (Arabic)
مستشعرات مغناطيسية أرضية جسرية متباينة الخواص
Translated title (English)
Meander anisotropic magnetoresistance bridge geomagnetic sensors
Translated title (French)
Meander anisotropic magnetoresistance bridge geomagnetic capteurs
Translated title (Spanish)
Meander anisotropic magnetorresistance bridge geomagnetic sensors

Identifiers

Other
https://openalex.org/W2940449149
DOI
10.1016/j.jsamd.2019.04.007

Is supplement to
https://openalex.org/W4319990423 (Other)
https://openalex.org/W4318989056 (Other)
https://openalex.org/W2333431387 (Other)
https://openalex.org/W2331586988 (Other)
https://openalex.org/W2330047777 (Other)
https://openalex.org/W2326332713 (Other)
https://openalex.org/W2066252158 (Other)
https://openalex.org/W2062128426 (Other)
https://openalex.org/W2058588524 (Other)
https://openalex.org/W155495611 (Other)

GreSIS Basics Section

Is Global South Knowledge
Yes
Country
Vietnam

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