An improved magnetoelectric vibration energy harvester for wireless sensors

2012 ◽  
Author(s):  
Zhang Zhang ◽  
Xianzhi Dai ◽  
Yong Wang
Keyword(s):  
Wireless Sensors ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester

Design and analysis of a 2D broadband vibration energy harvester for wireless sensors

2014 ◽  
Vol 205 ◽  
pp. 47-52 ◽  
Author(s):  
Jin Yang ◽  
Xihai Yue ◽  
Yumei Wen ◽  
Ping Li ◽  
Qiangmo Yu ◽  
...  
Keyword(s):  
Wireless Sensors ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester

Non-Invasive Displacement Measurement of Lightweight Structures Under Dynamic Excitations

2014 ◽  
Author(s):  
Lubos Kotek ◽  
Michal Holub ◽  
Jan Vetiska ◽  
Zdenek Hadas ◽  
Petr Blecha
Keyword(s):  
Wireless Sensors ◽  
High Speed ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Mechanical Vibrations ◽  
Vibration Energy Harvester ◽  
Lightweight Structures ◽  
Non Invasive ◽  
Electro Magnetic ◽  
Invasive Measurement

The present article deals with the processing of data obtained by non-invasive measurement methods of instantaneous displacement of lightweight structures. This data is necessary to evaluate tuning-up of characteristics of an electro-magnetic vibration energy harvester, which is used for energy harvesting from these ambient mechanical vibrations. The electro-magnetic vibration energy harvester is device for powering of low power consumption wireless sensors without any external source of energy. The primary source of energy is only mechanical vibrations in place of wireless sensor and the operation without primary batteries is required. These techniques of wireless measurement are commonly used in aeronautics applications. The knowledge of mechanical vibrations in place of wireless sensors with vibration energy harvester is used for development of vibration energy harvester design. The major idea is to verify the use of non-invasive measurement using high-speed cameras with measurement obtained from the laser interferometer. The measurement using high-speed camera can provide very important information about resonance operation of the vibration energy harvester during the future development.

Simply supported FPEDs connected by springs for broadband energy harvesting

2020 ◽  
Vol 64 (1-4) ◽  
pp. 201-210
Author(s):  
Yoshikazu Tanaka ◽  
Satoru Odake ◽  
Jun Miyake ◽  
Hidemi Mutsuda ◽  
Atanas A. Popov ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Evaluation Method ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Functional Materials ◽  
Vibration Energy ◽  
Theoretical Evaluation ◽  
Vibration Energy Harvester ◽  
Polyvinylidene Difluoride ◽  
Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

Hybrid Vibration Energy Harvester based on Stochastic Resonance

2018 ◽  
Vol 138 (5) ◽  
pp. 185-190
Author(s):  
Meng Su ◽  
Dai Kobayashi ◽  
Nobuyuki Takama ◽  
Beomjoon Kim
Keyword(s):  
Stochastic Resonance ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester
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