Acquisition of modulated PZT signal and application of SEAM

Author

Yang, Yang ; Zhang, Bingyang ; Jiang, Fuming ; Hui, Senxing ; Yin, Qingrui

Author_Institution

Inst. of Ceramics, Acad. Sinica, Shanghai, China

fYear

1996

fDate

25-30 Sep 1996

Firstpage

1088

Lastpage

1092

Abstract

PZT transducers can be used to measure the characteristics of materials irradiated by laser or electron beams. In order to maintain high measurement resolution, the signal aroused on the transducer is modulated to produce a modulated PZT signal. Signal acquisition is accomplished with a lock-in amplifier and computer technologies. A typical application is SEAM (Scanning Electrical Acoustic Microscopy). The SEAM image reflects the thermal characteristics of materials. Furthermore, the SEAM image can supply subsurface information without destroying the sample

Keywords

acoustic microscopy; acoustic signal detection; lead compounds; piezoceramics; piezoelectric transducers; scanning electron microscopy; ultrasonic materials testing; PZT; PZT transducers; PbZrO3TiO3; SEAM; computer technologies; digital imaging system; electron beam irradiation; high measurement resolution; laser beam irradiation; lock-in amplifier; modulated PZT signal acquisition; scanning electrical acoustic microscopy; subsurface information; thermal characteristics; Acoustic beams; Acoustic measurements; Acoustic transducers; Acoustic waves; Amplifiers; Electron beams; Energy measurement; Inorganic materials; Microscopy; Optical modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1996. (ISE 9), 9th International Symposium on

Conference_Location

Shanghai

Print_ISBN

0-7803-2695-4

Type

conf

DOI

10.1109/ISE.1996.578264

Filename

578264