Now showing items 1-4 of 4

    • Calculation of transformer ratio in mason's equivalent circuit for cMUTs 

      Ölçüm, Selim; Atalar, Abdullah; Köymen, Hayrettin; Şenlik, Muhammed Niyazi (IEEE, 2006)
      We present a new method to calculate the transformer ratio of a cMUT in Mason's Equivalent circuit model. The effect of the spring softening capacitance is also included in the analysis. We use the existing turns ratio ...
    • CMUT array element in deep-collapse mode 

      Olcum, Semih; Yamaner F.Y.; Bozkurt, A.; Köymen, Hayrettin; Atalar, Abdullah (IEEE, 2011)
      Collapse and deep-collapse mode of operations have boosted the pressure outputs of capacitive micromachined ultrasonic transducers (CMUTs) considerably. In this work, we demonstrate a CMUT element operating in the deep-collapse ...
    • 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 ...
    • An improved lumped element nonlinear circuit model for a circular CMUT cell 

      Koymen, H.; Atalar, Abdullah; Aydogdu, E.; Kocabas, C.; Oguz, H. K.; Olcum, S.; Ozgurluk, A.; Unlugedik, A. (IEEE, 2012)
      This paper describes a correction and an extension in the previously published large signal equivalent circuit model for a circular capacitive micromachined ultrasonic transducer (CMUT) cell. The force model is rederived ...