Title :
Design of Mechanical Sensing System Based on PVDF Piezoelectric Sensor
Author :
Wang, Yan-Shen ; Gai, Yu-Xian ; Li, Shi-Ming
Author_Institution :
Dept. of Mech. Eng., Harbin Inst. of Technol. at Weihai, Weihai, China
Abstract :
A mechanical sensing system based on PVDF piezoelectric sensor was designed. Piezoelectric equation of PVDF was studied and simplified for data analysis. The algorithm of power frequency elimination was detailed studied. 4-times sampling was adopted during A/D transformation and the noise induced by 50Hz power frequency was minimized. Butterworth low-pass filter and trap filter was used for noise filtering. The measuring system consisted of PVDF sensor, charge amplifier, signal filter, A/D, MCU and LCD. The data acquisition and processing program was also written. Simulation and experiments proved the effective of this system.
Keywords :
Butterworth filters; data acquisition; data analysis; low-pass filters; sensors; A/D; Butterworth low-pass filter; LCD; MCU; PVDF piezoelectric sensor; PVDF sensor; charge amplifier; data acquisition; data analysis; mechanical sensing system; noise filtering; piezoelectric equation; processing program; signal filter; trap filter; Charge measurement; Harmonic analysis; Interference; Low pass filters; Noise; Polymers; Sensors;
Conference_Titel :
Control, Automation and Systems Engineering (CASE), 2011 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0859-6
DOI :
10.1109/ICCASE.2011.5997741
