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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28811

Title: The Fabrication and characterization of PZT Thin Film Acoustic Devices For Application in Underwater Robotic Systems
Contributors: NTOU:Department of Electrical Engineering
Keywords: PZT thin film;acoustic devices;underwater technique
Date: 2000
Issue Date: 2011-10-21T02:40:51Z
Publisher: Proceedings of the National Science Council. Part A, Physical Science and Engineering
Abstract: Abstract:A high frequency spectrum lead zirconate titanate (PZT) thin film acoustic device was fabricated and studied for application using an underwater technique. The radio frequency (RF) planar magnetron sputtering method was used to deposit PZT thin film .The deposited PZT thin film IC (integrated circuits) fabrication processes were used to fabricate the acoustic devices. The optimized annealing conditions were 650? and 20 min for PZT thin film deposited at 350? for 2 h. The obtained PZT thin film had a dielectric constant of 869, a free dielectric constant eT33 of about 893, a dielectric loss of 0.3, a concorcive electric field of 0.061 KV/cm, a piezoelectric constant d33 of 2.03 pm/V, a piezoelectric constant g33 = d33/eT33 of 2.57 ?10? vm/N and a polarization level of 112.5 nC/cm. The fabricated PZT thin film acoustic devices can be used as transmitters on receivers. The highest levels of transmission sensitivity and receiving sensitivity, which can be obtained, are 76 dB and ?5 dB, respectively. The acoustic device has better performance when poled PZT thin film is used.
Relation: 24(4), pp.287-292
URI: http://ntour.ntou.edu.tw/handle/987654321/28811
Appears in Collections:[機械與機電工程學系] 期刊論文
[電機工程學系] 期刊論文

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