• About
  • Policies
  • What is openaccess
  • Library
  • Contact
Advanced search
      Search 
      •   BUIR Home
      • Scholarly Publications
      • Search
      •   BUIR Home
      • Scholarly Publications
      • Search
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Search

      Show Advanced FiltersHide Advanced Filters

      Filters

      Use filters to refine the search results.

      Now showing items 1-10 of 15

      • Sort Options:
      • Relevance
      • Title Asc
      • Title Desc
      • Issue Date Asc
      • Issue Date Desc
      • Results Per Page:
      • 5
      • 10
      • 20
      • 40
      • 60
      • 80
      • 100
      Thumbnail

      Circuit theoretical method for efficient finite element analysis of acoustical problems 

      Ekinci, A. Suat; Atalar, Abdullah (IEEE, 1998)
      In the last decade, there has been an outstanding improvement in the computer aided design tools for VLSI circuits regarding solution times and the circuit complexity. This study proposes formulating the acoustic field ...
      Thumbnail

      An equivalent circuit for collapse operation mode of CMUTs 

      Olcum, Selim; Yamaner F.Y.; Bozkurt, A.; Köymen, Hayrettin; Atalar, Abdullah (IEEE, 2010)
      Collapse mode of operation of the capacitive mi-cromachined ultrasonic transducers (CMUTs) was shown to be a very effective way for achieving high output pressures. However, no accurate model exists for understanding the ...
      Thumbnail

      Wafer bonded capacitive micromachined underwater transducers 

      Olcum, Selim; Oǧuz, Kaan; Şenlik, Muhammed N.; Yamaner F. Y.; Bozkurt, A.; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2009-09)
      In this work we have designed, fabricated and tested CMUTs as underwater transducers. Single CMUT membranes with three different radii and 380 microns of thickness are fabricated for the demonstration of an underwater CMUT ...
      Thumbnail

      A novel equivalent circuit model for CMUTs 

      Oğuz, H. Kağan; Olcum, Selim; Senlik, Muhammed N.; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2009-09)
      A nonlinear equivalent circuit for immersed transmitting capacitive micromachined ultrasonic transducers (CMUTs) is presented. The velocity profile across the CMUT surface maintains the same form over a wide frequency ...
      Thumbnail

      Deep-collapse operation of capacitive micromachined ultrasonic transducers 

      Olcum, S.; Yamaner F. Y.; Bozkurt, A.; Atalar, Abdullah (IEEE, 2011)
      Capacitive micromachined ultrasonic transducers (CMUTs) have been introduced as a promising technology for ultrasound imaging and therapeutic ultrasound applications which require high transmitted pressures for increased ...
      Thumbnail

      Modeling the effect of subsurface interface defects on contact stiffness for ultrasonic atomic force microscopy 

      Sarioglu, A. F.; Atalar, Abdullah; Degertekin, F. L. (AIP Publishing LLC, 2004)
      We present a model predicting the effects of mechanical defects at layer interfaces on the contact stiffness measured by ultrasonic atomic force microscopy sAFMd. Defects at subsurface interfaces result in changes at the ...
      Thumbnail

      A new detection method for capacitive micromachine ultrasonic transducers 

      Ergun, A. S.; Temelkuran, B.; Özbay, Ekmel; Atalar, Abdullah (IEEE, 2001)
      Capacitive micromachine ultrasonic transducers (cMUT) have become an alternative to piezoelectric transducers in the past few years. They consist of many small circular membranes that are connected in parallel. In this ...
      Thumbnail

      Lumped element modeling of CMUT arrays in collapsed mode 

      Aydoğdu, Elif; Özgürlük, A.; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2014-09)
      This study focuses on modeling collapsed modeoperation of CMUT arrays, and obtaining a small signal lumped element model for collapsed mode operation. Having the large signal model for single CMUT from previous studies, ...
      Thumbnail

      Radiation impedance and equivalent circuit for immersed CMUT array element 

      Şenlik, Muhammed N.; Atalar, Abdullah; Köymen, Hayrettin; Olcum, Selim (IEEE, 2006-10)
      In this paper, we present equivalent circuit for immersed capacitive micromachined ultrasonic transducers (cMUT), based on an accurate parametric model. We also present an accurate approximation for the radiation impedance ...
      Thumbnail

      Optimizing CMUT geometry for high power 

      Yamaner F.Y.; Olcum, Selim; Bozkurt, A.; Köymen, Hayrettin; Atalar, Abdullah (IEEE, 2010)
      Capacitive micromachined ultrasonic transducers (CMUTs) have demonstratedvarious advantages over piezoelectric transducers. However, current CMUT designsproduce low output pressures with high harmonic distortions. Optimizing ...
      • 1
      • 2

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CommunityTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      Login

      Discover

      Author
      Atalar, Abdullah (15)
      Köymen, Hayrettin (9)Olcum, Selim (6)Şenlik, Muhammed N. (5)Bozkurt, A. (3)Olcum, S. (2)Yamaner F. Y. (2)Yamaner F.Y. (2)Aydoğdu, Elif (1)Bozkurt, A. (1)... View MoreKeywords
      Ultrasonics (15)
      Ultrasonic transducers (10)Capacitive micromachined ultrasonic transducer (8)Transducers (5)Computer simulation (4)Finite element method (4)Radiation impedance (4)Capacitive micromachined ultrasonic transducers (3)Radiation resistance (3)Ultrasonic equipment (3)... View MoreDate Issued2010 - 2014 (5)2000 - 2009 (8)1996 - 1999 (2)Has File(s)Yes (15)

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy