A novel piezoelectric rotational speed meter

Author

Meng-xin Sun ; Yin Wang ; Wei-qing Huang ; Kai Wang

Author_Institution

State Key Lab. of Mech. & Control of Mech. Struct., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2013

fDate

25-27 Oct. 2013

Firstpage

1

Lastpage

4

Abstract

A novel piezoelectric speed meter which is similar to solid-state wave gyroscope based on direct and inverse piezoelectric effect is proposed in the paper. The hard core of the speed meter is a vibratory ring with circular inner surface and octagonal outer surface. The paper presents the principle introduction, structure design and experimental verification of the rotational speed meter. The mode test results show that the working frequencies of active and sense mode are nearly equal, which are approximately 1368Hz. The data from the experiment are analyzed to obtain the equation between amplitude and angular velocity. From the equation, the scale factor is 16.4mV/min/r and the correlation coefficient is 0.992. These results are more accurate when the angular velocities range from 100RPM to 700RPM.

Keywords

angular velocity measurement; gyroscopes; piezoelectric devices; piezoelectricity; velocimeters; vibrations; amplitude velocity; angular velocity; circular inner surface; correlation coefficient; direct piezoelectric effect; inverse piezoelectric effect; octagonal outer surface; piezoelectric rotational speed meter; scale factor; solid-state wave gyroscope; vibratory ring; Angular velocity; Ceramics; Gyroscopes; Resonant frequency; Surface waves; Velocity control; Vibrations; Angular velocity; Piezoelectric structure; Solid-state gyroscope;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2013 Symposium on

Conference_Location

Changsha

Print_ISBN

978-1-4799-3289-4

Type

conf

DOI

10.1109/SPAWDA.2013.6841088

Filename

6841088