Band-Stop Filter Algorithm Research Based on Nano-Displacement Positioning System

Abstract:

This paper proposed the algorithms of infinite impulse response (IIR) band-stop filter and all-pass filter to eliminate the inherent frequency for piezoelectric ceramics and improve the control precision for nanodisplacement positioning system. The IIR algorithm was composed of five steps (such as the determination of normalized frequency, filter orders and transfer functions of analog low-pass filter, analog band-stop filter and digital band-stop filter). Based on the experimental simulation results on the nanodisplacement positioning platform, the butterworth band-stop filter algorithm can achieve the requested filtering effects within 10 orders .

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 697-700
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.697
• Online since: August 2013
• Authors: Yue Zhou, Xiao Xiao Yao, Jin Xiang Pian, Yan Qiang Su
• Keywords: Filter Algorithm, Infinite Impulse Response Filter, Inherent Frequency, Piezoelectric Ceramic (PZT)

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