Polymer/ceramic composites for piezoelectric sensors

✍ Scribed by C. Dias; D.K. Das-Gupta; Yolanda Hinton; R.J. Shuford

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 423 KB
• Volume: 37-38
• Category: Article
• ISSN: 0924-4247
• DOI: 10.1016/0924-4247(93)80058-o

✦ Synopsis

Polymer/ceramic composites wth O-3 connectlvlty have been produced by mtroducmg fine-gram modified lead tltanate powder m the matrrx of a copolymer of vmyhdene fluonde and tnfluorethylene (VDF/TrFE) The electromechanical couphng factor k,, the acoustic impedance Z, and the mechamcal quahty factor Q,,, of these films are deternuned k, values m the range 30-35% have been acheved Ultrasound transducers have been fabncated mth these films The impulse response of the transducer m the transmlttmg mode IS determined An attempt has been made to produce a theoretical model to match the expenmental observations