Study of compressive type accelerometer based on lead-free BNKBT piezoceramics

被引：32

作者：

Choy, SH

Wang, XX

Chan, HLW

Choy, CL

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Mat Res Ctr, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 82卷 / 04期

关键词：

D O I：

10.1007/s00339-005-3421-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead-free piezoelectric 0.90(Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.05BaTiO(3) ceramics(abbreviated as BNKBT-5) rings were fabricated using a conventional mixed oxide method. The ceramics have a piezoelectric constant d(33)=168 pC/N, electromechanical coupling factors k(p)=0.313 and k(t)=0.487. The BNKBT lead-free ceramic rings were used as the transduction elements in a compressive type accelerometer and its performance compared with a lead zirconate titanate (PZT) APC 840 ceramic accelerometer with similar structure. The lead-free accelerometer shows good performance and has a broader frequency response compared to the lead-based PZT accelerometer.

引用

页码：715 / 718

页数：4

共 15 条

[1]

*ANSI IEEE, 1987, IEEE STAND PIEZ, V176

[2] PYROELECTRIC PROPERTIES OF (NA1/2BI1/2)TIO3 CERAMICS [J].