Yazar "Newnham, RE" için listeleme
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Composite transducer arrays for the treatment of diabetes
Lee, S; Smith, NB; Markley, DC; Snyder, B; Özgür, AE; Pishko, M; Newnham, RE (Wiley, 2005)A portable transdermal drug delivery system using a composite transducer array has been designed to promote insulin transmission through the skin using ultrasound. Previous investigators used large, heavy sonicators in ... -
Computational analysis on cymbal transducer
Özgür, AE; Doğan, A; Suvacı, Ender; Newnham, RE (Taylor & Francis Inc, 2003)Finite Element Analysis in collaboration with experimental studies was conducted to investigate the effects of dimensional parameters on the performance of the cymbal transducer. ANSYS 5.5 FEM code was used for computational ... -
Design optimization of piezoelectric composite transducer using finite element method
Özgür, AE; Doğan, A; Newnham, RE (Trans Tech Publications LTD, 2002)The effect of size on the performance of the cymbal transducer was investigated by using experimental and computational methods. Cymbal transducers were fabricated with steel endcap materials and piezoelectric ceramic, ... -
Displacement amplification of electroactive materials using the cymbal flextensional transducer
Meyer, RJ; Doğan, A; Yoon, C; Pilgrim, SM; Newnham, RE (Elsevier Science Sa, 2001)High performance electroactive materials were studied as the driver element for the "cymbal" flextensional transducer. The compositions included were commercially available Navy Type I and PKT552 lead zirconate titanate ... -
Flextensional composite transducers: Designing, fabrication and application
Doğan, Aydın; Uchino, K; Newnham, RE (Springer, 2000)The design, fabrication and application of flextensional composite transducers are summarized in this study. The moonie and cymbal type flextensional transducer consist of a ceramic driving element sandwiched between two ... -
Functional composites for sensors, actuators and transducers
Tressler, JF; Alkoy, S; Doğan, A; Newnham, RE (Elsevier Sci LTD, 1999)Following the trend in structural applications, composite structures are being used more commonly in transducer applications to improve acoustic, mechanical and electrical performance of piezoelectric devices. Functional ... -
Materials for high performance cymbal transducers
Doğan, Aydın; Uzgur, Erman; Markley, DC; Meyer, RJ; Hladky-Hennion, AC; Newnham, RE (Springer, 2004)The effects of materials on the performance of the cymbal-type flextensional transducers were investigated under in-air and water-loaded conditions by finite element analysis (FEA) methods. At the initial stage, FEA and ... -
Piezoelectric hollow spheres for microprobe hydrophones
Alkoy, S; Hladky, AC; Doğan, A; Cochran, JK; Newnham, RE (Taylor & Francis LTD, 1999)Miniature hollow spheres of lead zirconate titanate have been prepared with a coaxial nozzle process using fine grain slurry of PZT-5. Following the binder burnout and sintering, the spheres were poled radially and ... -
Pressure limitations of miniature hollow sphere hydrophones
Giniewicz, JR; Meyer, RJ; Cochran, JK; Özgür, AE; Newnham, RE (Taylor & Francis LTD, 2005)Ultrasonic probes that can withstand high pressures and temperatures are needed for deep oil wells, underwater sonar systems, the processing of chemicals, and as automotive actuators. Pressure limits of hollow spherical ... -
Solid-state ceramic actuator designs
Doğan, Aydın; Tressler, J; Newnham, RE (Amer Inst Aeronaut Astronaut, 2001)Smart electromeehanical systems consist mainly of sensors, actuators, and data processing units. Actuators are the responding units of many smart systems including those for active vibration control and noise control. ... -
An ultrasonic motor using a metal-ceramic composite actuator generating torsional displacement
Koç, B; Doğan, A; Xu, Y; Newnham, RE; Uchino, K (Japan J Applied Physics, 1998)An ultrasonic motor composed of three components; a stator, a rotor and a ball bearing is proposed. The stator is made of an active piezoelectric ring, poled in the thickness direction and bonded with two windmill-like ...
