Lockin Magnetooptical Imager Using Correlation Image Sensor

• doi:
• title: Lock-in magneto-optical imager using correlation image sensor
• publisher: IEEE
• isbn: 0-7803-8352-4
• issn:
• partnum: 03TH8734
• rank: 2903
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper proposes a new method of magneto-optical imaging, which can observe the distribution of both amplitude and phase of AC magnetic field using the lock-in detection by means of a three-phase correlation image sensor (3PCIS). We successfully developed 64 /spl times/ 64 and 100 /spl times/ 100 devices using a multi-user CMOS process. We applied the imaging system to the leakage flux inspection of steel plates. It could observe amplitude and phase (direction and delay) of vertical flux components. The imager was also shown to provide rich clues for the horizontal flux components through observing fine movements of domain wall.
• article_number: 1323392
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1323392
• html_url: https://ieeexplore.ieee.org/document/1323392/
• abstract_url: https://ieeexplore.ieee.org/document/1323392/
• publication_title: SICE 2003 Annual Conference (IEEE Cat. No.03TH8734)
• conference_location: Fukui, Japan
• conference_dates: 4-6 Aug. 2003
• publication_number: 9240
• is_number: 29285
• publication_year: 2003
• publication_date: 4-6 Aug. 2003
• start_page: 461
• end_page: 464 Vol.1
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 45
• insert_date: 20041004
• index_terms:
  • ieee_terms:
    • Image sensors
    • Magnetooptic effects
    • Optical imaging
    • MOS capacitors
    • Magnetic fields
    • Magnetooptic devices
    • Magnetic sensors
    • Leak detection
    • Phase detection
    • Inspection
  • dynamic_index_terms:
    • Magnetic Field
    • Phase Distribution
    • Steel Plate
    • Domain Wall
    • Amplitude Distribution
    • Leakage Flux
    • AC Magnetic Field
    • Lock-in Detection
    • Horizontal Flux
    • Field Of View
    • Reference Signal
    • Magnetic Flux
    • Magnetic Flux Density
    • Optical Flow
    • Harmonic Distortion
    • Magnetic Domain
    • Faraday Rotation
    • Faraday Effect
    • Magnetic Field Frequency
    • External Capacitor
• isbn_formats:
  • format: Print ISBN, value: 0-7803-8352-4, isbnType: Historical
• authors:
  • Author Name: S. Ando
    Affiliation: Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37277226900
    ID: 37277226900
    Order: 1
    Author Affiliations:
    • Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan
  • Author Name: N. Ono
    Affiliation: Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37280832000
    ID: 37280832000
    Order: 2
    Author Affiliations:
    • Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan
  • Author Name: A. Kimachi
    Affiliation: Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37275763900
    ID: 37275763900
    Order: 3
    Author Affiliations:
    • Department of Information Physics and Computing, University of Tokyo, Bunkyo, Tokyo, Japan

Image Sensor

• sensor_type: Correlation Image Sensor (CMS)
• resolution: 64 x 64, 100 x 100
• dynamic_range: 34dB (amplitude), 52dB (phase)
• pixel_size: 96μm x 96μm, 62μm x 62μm
• dark_current: Not specified

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: 12-480 frames/s
• signal_to_noise_ratio: -34dB (amp), -52dB (phase)

Applications & Benefits

• cell_imaging: Leakage flux inspection of steel plates
• benefits: Ability to observe amplitude and phase of AC magnetic fields, superior sensitivity and resolution, reduction of disturbance and noise by lock-in detection.

Supporting Organizations

• supported_by: VDEC (The VLSI Design and Education Center, University of Tokyo)

Manuscript Details

• publication_date: 4-6 Aug. 2003

Relevancy Score

• score: 9
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise

Processed JSON Filename

request_288147d3-e4a5-424c-8411-073dec00e976-lockin_magnetooptical_imager_using_correlation_image_sensor.json