A biomimetic vibration sensor using a symmetric electrodes metal core piezoelectric fiber. (April 2018)

• Record Type: Journal Article
• Authors: Bian, Yixiang; Zhang, Yi; Sun, Kaixuan; Jin, Hong; Dai, Longchao; Shen, Hui
• Is Part Of: Journal of intelligent material systems and structures. Volume 29:Number 6(2018)
• Page Start: 1015
• Page End: 1024
• Publication Date: 2018-04
• Subjects: Biomimetic -- vibration sensor -- metal core piezoelectric fiber -- symmetric electrodes; Smart materials -- Periodicals; Intelligent control systems -- Periodicals; Artificial intelligence -- Periodicals; Matériaux intelligents -- Périodiques; Commande intelligente -- Périodiques; Intelligence artificielle -- Périodiques; 620.11
• DOI: 10.1177/1045389X17730908
• Languages: English
• ISSNs: 1045-389X

Abstract

A biomimetic vibration sensor to sense external vibrations was designed based on the hair receptor of insects similar to the water strider. Platinum core piezoelectric ceramic fiber body was prepared by squeeze and press method. This was followed by high-temperature sintering, surface electrode coating, and polarizing to fabricate the symmetric coated metal core piezoelectric fiber vibration sensor. A cantilever beam structure with two surface electrodes was designed as the theoretical sensor model. The fiber was fixed on a matrix structure. Experiments were performed to verify sensing characteristics under impact vibration and simple harmonic excitation. Results showed that the symmetric coated metal core piezoelectric fiber was able to sense amplitude and direction of impact vibration along with frequency, amplitude, and direction under simple harmonic excitation. Such a biomimetic vibration sensor can be effectively used to sense vibration amplitude and direction for a wide range of applications.