论文信息 - Characteristics of ultrasonic micromachined capacitance transducers in water

Characteristics of ultrasonic micromachined capacitance transducers in water

Investigations into the characteristics of water-coupled ultrasonic capacitance transducers have been performed for a range of transducer configurations. The radiated fields have been scanned in water using a miniature hydrophone detector, and the results compared to theory based on a plane piston approach. Additionally, the transducer has been used in pulse-echo mode and a C-scan performed to image an artificial defect in a Plexiglas plate.

A. G. Bashford | D. Schindel | D. Hutchins

[1] W. J. Merz. Piezoelectric Ceramics , 1972, Nature.

[2] Henry E. Bass,et al. Atmospheric Absorption of Sound: Theoretical Predictions , 1972 .

[3] Gerald R. Harris,et al. Transient field of a baffled planar piston having an arbitrary vibration amplitude distribution , 1981 .

[4] A matched impedance, electrostatic approach to hydrophone design , 1981 .

[5] Gerald R. Harris,et al. Review of transient field theory for a baffled planar piston , 1981 .

[6] A. Varaprasad,et al. PZT-polymer composites for transducers of hydrophone systems , 1988 .

[7] S. M. Kramer,et al. Characteristics of wide-band planar ultrasonic transducers using plane and edge wave contributions , 1988, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[8] Henry E. Bass,et al. Atmospheric absorption of sound: Update , 1990 .

[9] D. Schindel,et al. Capacitance devices for the controlled generation of ultrasonic fields in liquids , 1991, IEEE 1991 Ultrasonics Symposium,.

[10] Tetsuji Miyata,et al. Properties of Hydrophone with Porous Piezoelectric Ceramics , 1991 .

[11] C. M. Fortunko,et al. Absorption of ultrasonic waves in air at high frequencies (10–20 MHz) , 1992 .

[12] D. Schindel,et al. Applications of micromachined capacitance transducers in air-coupled ultrasonics and nondestructive evaluation , 1995, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.