Excitation of piezoelectric device through resonant helical coil antenna-like structure

被引:4
|
作者
Nayak, Praveen P. [1 ]
Kar, Durga P. [1 ]
Samal, Satish Kumar [1 ]
Mohanty, Ayesha [1 ]
Bhuyan, Satyanarayan [1 ]
机构
[1] Siksha O Anusandhan Univ, Dept Elect & Instrumentat Engn, Bhubaneswar 751030, Orissa, India
关键词
Wireless excitation; Piezoelectric device; Resonance; Helical coil structure; PARTICLES; ACTUATOR;
D O I
10.1016/j.aeue.2017.05.006
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A resonant helical coil antenna-like structure has been explored for wireless excitation of piezoelectric devices. The basic idea behind this wireless excitation of piezoelectric device is electromagnetic resonance along with piezoelectric resonance. The analytical studies reveal that the maximum excitation occurs in the piezoelectric device when the operating frequency of the system coincides with its mechanical resonant frequency. It has been seen that the intensity of piezoelectric stimulation depends on the frequency of operation, air gap, relative position, electric load, and the generated electric field strength by the helical coil antenna-like structure. The analytical results are verified with the measured experimental results, and are found to be in well agreement. By adopting this proposed wireless excitation system the free actuation of the piezoelectric devices can be enabled as opposed to the confined motion for various potential applications. (C) 2017 Elsevier GmbH. All rights reserved.
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页码:1 / 6
页数:6
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