A wideband and a wide - Beamwidth acoustic transducer design for underwater acoustic communications
Ceren Elmasli I.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/26920
OCEANS 2006 - Asia Pacific
- Conference Paper 
This paper is concerned with the design of an efficient, wideband and a wide-beamwidth resonant acoustic transducer for high frequency use. The general transducer structure which has two back-to-back quarter wave thick 1-3 composite ceramic elements at resonance frequency is introduced. The transducer is employed for both transmit and receive modes. Design of transmitting and receiving transducers are discussed. Several transfer functions are derived and their effective bandwidths are calculated. It is shown that the phase angle difference between two acoustic ports in receive mode can be processed at the electrical ports to maintain better throughput. The paper includes future works to be done. It is concluded that the proposed structure can be used for applications of spread spectrum schemes in underwater communications. ©2006 IEEE.
Showing items related by title, author, creator and subject.
Radiation impedance of an array of circular capacitive micromachined ultrasonic transducers in collapsed state Ozgurluk, A.; Atalar, A.; Koymen H.; Olcum, S. (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 ...
Bozkurt, A.; Arikan, O.; Atalar, A. (IEEE, Piscataway, NJ, United States, 1995)A synthetic aperture acoustic imaging system with a novel inversion algorithm is described. Data is obtained by using a transducer insonifying the sample surface at a critical angle which is excited by a short electrical ...
Bozkurt, A.; Yarahoglu G.; Atalar, A.; Koymen H. (Publ by IEEE, Piscataway, NJ, United States, 1993)A new directional acoustic lens is introduced. The geometry is very similar to the line-focus lens except the lens cavity, which is shaped as a groove with flat-bottom V cross section. The slanted planar edges of the groove ...