Determination of transient dynamic pressure by piezoelectric sensor

Author

WANG, Hui-ming ; Ding, Hao-jiang

Author_Institution

Dept. of Mech., Zhejiang Univ., Hangzhou

fYear

2008

fDate

5-8 Dec. 2008

Firstpage

236

Lastpage

239

Abstract

The piezoelectric hollow sphere sensor is analyzed theoretically to predict the dynamic pressure with the knowledge of electric potential difference between the internal and external surfaces. The analysis is based on the three-dimensional theory of spherically isotropic piezoelectricity and is suitable for the piezoelectric hollow sphere sensor with arbitrary thickness. Under the free electric charge boundary condition, the relation between the dynamic pressure and the measured electric potential difference is derived as a second kind Volterra integral equation by means of the separation of variables method. The dynamic pressure is determined by solving the integral equation.

Keywords

Volterra equations; electric sensing devices; piezoelectric devices; transients; Volterra integral equation; electric charge boundary condition; electric potential; hollow sphere; piezoelectric sensor; transient dynamic pressure; Boundary conditions; Civil engineering; Electric potential; Electric variables measurement; Integral equations; Mechanical sensors; Piezoelectricity; Pressure measurement; Sensor phenomena and characterization; Transient analysis; Piezoelectric sensor; Volterra integral equation; dynamic pressure; hollow sphere;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-2891-5

Type

conf

DOI

10.1109/SPAWDA.2008.4775784

Filename

4775784