Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q5034480> ?p ?o }
Showing triples 1 to 32 of
32
with 100 triples per page.
- Q5034480 subject Q6460587.
- Q5034480 subject Q8857513.
- Q5034480 abstract "Capacitive micromachined ultrasonic transducers (CMUT) is a relatively new concept in the field of ultrasonic transducers. Most of the commercial ultrasonic transducers today are based on piezoelectricity. CMUTs are the transducers where the energy transduction is due to change in capacitance. CMUTs are constructed on silicon using micromachining technique. A cavity is formed in a silicon substrate, and a thin layer suspended on the top of the cavity serves as a membrane on which a metallized layer acts an electrode, together with the silicon substrate which serves as a bottom electrode.If an AC signal is applied across the biased electrodes, the vibrating membrane will produce ultrasonic waves in the medium of interest. In this way it works as a transmitter. On the other hand, if ultrasonic waves are applied on the membrance of biased CMUT, it will generate alternating signal as the capacitance of the CMUT is varied. In this way, it works as a receiver of ultrasonic waves.As CMUTs are micromachined devices, it is easier to construct 2D and 3D arrays of transducers using this technology. This means large numbers of CMUTs could be included in a transducer array providing larger bandwidth compared to other transducer technologies. To achieve a high frequency operation using CMUTs is easier due to its smaller dimensions. The frequency of operation depends on the cell size (cavity of membrane), and on the stiffness of the material used as a membrane. As it is built on silicon, the integration of electronics would be easier for the CMUTs compared to other transducer technologies. The properties to use in high frequency with large bandwidth makes it a good choice to use as a transducer in medical imaging, especially in the an intravascular ultrasound (IVUS). Because of its broader bandwidth, it could be used in second-harmonic imaging. Also some experiments have been performed to use CMUTs as hydrophones.".
- Q5034480 wikiPageExternalLink field-ii.dk.
- Q5034480 wikiPageExternalLink ~fultras-web.
- Q5034480 wikiPageWikiLink Q124164.
- Q5034480 wikiPageWikiLink Q13042351.
- Q5034480 wikiPageWikiLink Q1570182.
- Q5034480 wikiPageWikiLink Q162564.
- Q5034480 wikiPageWikiLink Q164399.
- Q5034480 wikiPageWikiLink Q1671577.
- Q5034480 wikiPageWikiLink Q17092959.
- Q5034480 wikiPageWikiLink Q174984.
- Q5034480 wikiPageWikiLink Q176140.
- Q5034480 wikiPageWikiLink Q183759.
- Q5034480 wikiPageWikiLink Q190157.
- Q5034480 wikiPageWikiLink Q20736125.
- Q5034480 wikiPageWikiLink Q2143425.
- Q5034480 wikiPageWikiLink Q249998.
- Q5034480 wikiPageWikiLink Q2988941.
- Q5034480 wikiPageWikiLink Q567503.
- Q5034480 wikiPageWikiLink Q6460587.
- Q5034480 wikiPageWikiLink Q670.
- Q5034480 wikiPageWikiLink Q719550.
- Q5034480 wikiPageWikiLink Q7646003.
- Q5034480 wikiPageWikiLink Q798062.
- Q5034480 wikiPageWikiLink Q816754.
- Q5034480 wikiPageWikiLink Q8857513.
- Q5034480 wikiPageWikiLink Q906786.
- Q5034480 wikiPageWikiLink Q931309.
- Q5034480 comment "Capacitive micromachined ultrasonic transducers (CMUT) is a relatively new concept in the field of ultrasonic transducers. Most of the commercial ultrasonic transducers today are based on piezoelectricity. CMUTs are the transducers where the energy transduction is due to change in capacitance. CMUTs are constructed on silicon using micromachining technique.".
- Q5034480 label "Capacitive micromachined ultrasonic transducers".