Ultrasonic Sensing Using Thermalmechanical Noise Recorded On Monolithic Cmutoncmos Arrays

• doi: 10.1109/ULTSYM.2011.0026
• title: Ultrasonic sensing using thermal-mechanical noise recorded on monolithic CMUT-on-CMOS arrays
• publisher: IEEE
• isbn: 978-1-4577-1251-7
• issn: 1948-5719
• partnum: 11CH38897
• rank: 3932
• access_type: LOCKED
• content_type: Conferences
• abstract: Monolithic integration of miniature CMUT arrays and CMOS electronics minimizes interconnect parasitics and enables detection of the thermal-mechanical component of the ultrasonic noise field. Consequently, an estimate of the pulse-echo response (or Green's function) between two CMUT array elements can be obtained from the cross-correlation of ambient noise recorded by these two sensors. This provides a foundation for passive ultrasound sensing and imaging using only the thermal-mechanical noise field, without the use of active transmitter elements. We designed and fabricated monolithic a 32 element CMUT-on-CMOS array for intravascular imaging with low noise transimpedance amplifiers. Demonstration experiments were conducted by immersing the CMUT array in a water bath to sense/image the water-air interface from noise signals in the frequency band 12MHz-22MHz. The normalized cross-correlations function computed between selected pairs of receivers show a clear echo associated with the water interface consistent with the sensor and target location. These target echoes were found to shift in a consistent symmetric fashion when we reduced the thickness of the water layer from 2.0mm to 1.5mm. Using low noise amplifier designs in a CMUT-on-CMOS implementation allows for extracting pulse-echo-like arrivals from thermal-mechanical noise cross-correlations between CMUT array elements. In particular, this totally passive technique could improve ultrasound imaging of near-field targets in the deadzone created by active transmitters biasing the receivers and may lead to imaging using evanescent waves.
• article_number: 6293401
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6293401
• html_url: https://ieeexplore.ieee.org/document/6293401/
• abstract_url: https://ieeexplore.ieee.org/document/6293401/
• publication_title: 2011 IEEE International Ultrasonics Symposium
• conference_location: Orlando, FL, USA
• conference_dates: 18-21 Oct. 2011
• publication_number: 6269152
• is_number: 6293047
• publication_year: 2011
• publication_date: 18-21 Oct. 2011
• start_page: 104
• end_page: 107
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 204
• insert_date: 20120903
• index_terms:
  • ieee_terms:
    • Noise
    • Imaging
    • Acoustics
    • Sensors
    • Thermal noise
    • Ultrasonic imaging
    • Green's function methods
  • author_terms:
    • Passive Imaging
    • Cross-Correlation
    • CMUT
    • CMOS
    • Pulse Echo
  • dynamic_index_terms:
    • Ultrasonic
    • Sonication
    • Field Noise
    • CMOS Electronics
    • Waveform
    • Broadband
    • Frequency Band
    • Ultrasound Imaging
    • Practical Systems
    • Noise Sources
    • Low Noise
    • Diffraction Limit
    • Array Elements
    • DC Bias
    • Air Water Interface
    • Water-air Interface
    • Cross-correlation Function
    • Recording Duration
    • High-frequency Ultrasound
    • Noise In The Dataset
    • Transimpedance Amplifier
    • Water Thickness
    • Diffuse Field
    • Target Echo
    • Intravascular Imaging
    • Imaging Applications
    • Noise Recordings
• isbn_formats:
  • format: CD, value: 978-1-4577-1251-7, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4577-1253-1, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4577-1252-4, isbnType: New-2005
• authors:
  • Author Name: Shane Lani
    Affiliation: Georgia Institute of Technology, Atlanta, GA, USA
    Author URL: https://ieeexplore.ieee.org/author/38556104700
    ID: 38556104700
    Order: 1
    Author Affiliations:
    • Georgia Institute of Technology, Atlanta, GA, USA
  • Author Name: Sarp Satir
    Affiliation: Georgia Institute of Technology, Atlanta, GA, USA
    Author URL: https://ieeexplore.ieee.org/author/38557646900
    ID: 38557646900
    Order: 2
    Author Affiliations:
    • Georgia Institute of Technology, Atlanta, GA, USA
  • Author Name: Gokce Gurun
    Affiliation: Georgia Institute of Technology, Atlanta, GA, USA
    Author URL: https://ieeexplore.ieee.org/author/38505184000
    ID: 38505184000
    Order: 3
    Author Affiliations:
    • Georgia Institute of Technology, Atlanta, GA, USA
  • Author Name: Karim G. Sabra
    Affiliation: Georgia Institute of Technology, Atlanta, GA, USA
    Author URL: https://ieeexplore.ieee.org/author/37564744000
    ID: 37564744000
    Order: 4
    Author Affiliations:
    • Georgia Institute of Technology, Atlanta, GA, USA
  • Author Name: F. Levent Degertekin
    Affiliation: Georgia Institute of Technology, Atlanta, GA, USA
    Author URL: https://ieeexplore.ieee.org/author/38556756100
    ID: 38556756100
    Order: 5
    Author Affiliations:
    • Georgia Institute of Technology, Atlanta, GA, USA

Image Sensor

• sensor_type: CMOS
• resolution: None specified
• dynamic_range: 14 bits
• pixel_size: 70µm x 70µm
• dark_current: None specified

Optical Data

• focal_length: None specified
• aperture: None specified
• field_of_view: None specified
• distortion: None specified

Performance Metrics

• frame_rate: None specified
• signal_to_noise_ratio: High (exact values not specified)
• sensitivity: None specified
• shutter_speed: None specified
• power_consumption: Low power (exact values not specified)
• noise: None specified

Applications & Benefits

• cell_imaging: Potential integration in microfluidic and medical systems
• benefits: High-frequency ultrasound imaging, passive detection, low power, practical applications

Supporting Organizations

• supported_by: Georgia Institute of Technology

Manuscript Details

• publication_date: 18-21 Oct. 2011

Relevancy Score

• score: 8
• missing_fields:
  • frequency response
  • fill factor
  • quantum efficiency
  • analog-to-digital conversion techniques
  • readout speed
  • noise sources

Processed JSON Filename

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