Microfabricated ultrasonic transducers: towards robust models and immersion devices
Soh, H. T.
Khuri-Yakub, B. T.
1996 IEEE Ultrasonics Symposium. Proceedings
335 - 338
Item Usage Stats
MetadataShow full item record
The successful fabrication of ultrasonic immersion transducers is reported. Transducers are observed to operate from 1 MHz to 20 MHz in water, with the frequency range limited by electronics, not the transducers. Transmission results are included which show that a single pair of transducers is able to operate in water at 4, 6, and 8 MHz with a signal to noise ratio of at least 48 dB. The same transducer pair is shown to operate in air at 6 MHz. A model is introduced which highlights the significant parameters of transducer design. The model enables the design of optimized transducers.
Signal to noise ratio
Published Version (Please cite this version)https://doi.org/10.1109/ULTSYM.1996.583986
Showing items related by title, author, creator and subject.
Olcum, S.; Oǧuz, K.; Şenlik, M.N.; Yamaner F.Y.; Bozkurt, A.; Atalar, Abdullah; Köymen H. (2009)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 ...
Olcum, S.; Atalar, Abdullah; Köymen H.; Oguz, K.; Senlik, M.N. (2007)In this paper, capacitive micromachined ultrasonic transducers are fabricated using a sacrificial surface micromachining process. A testing procedure has been established in order to measure the absolute transmit and receive ...
Radiation impedance of an array of circular capacitive micromachined ultrasonic transducers in collapsed state Ozgurluk, A.; Atalar, Abdullah; Koymen, H.; Olcum, S. (IEEE, 2011)Radiation impedance is one of the important parameters in designing efficient and wideband capacitive micro-machined ultrasonic transducer (CMUT) arrays. It determines how much acoustical power is generated in the surrounding ...