1. A biomimetic vibration sensor using a symmetric electrodes metal core piezoelectric fiber
- Author
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Kaixuan Sun, Yi Zhang, Jin Hong, Bian Yixiang, Shen Hui, and Dai Longchao
- Subjects
010302 applied physics ,Materials science ,Mechanical Engineering ,chemistry.chemical_element ,02 engineering and technology ,Sense (electronics) ,021001 nanoscience & nanotechnology ,01 natural sciences ,Piezoelectricity ,Vibration ,Core (optical fiber) ,chemistry ,visual_art ,0103 physical sciences ,Electrode ,Physics::Atomic and Molecular Clusters ,visual_art.visual_art_medium ,General Materials Science ,Fiber ,Ceramic ,Physics::Chemical Physics ,Composite material ,0210 nano-technology ,Platinum - 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.
- Published
- 2017
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