With the rapid development of advanced electronics/materials and manufacturing, marine
vibration sensors have made great progress in the field of ship and ocean engineering …

The application of batteries as the main portable power sources is not applicable any longer
as it has limited lifespan. This paper presents the recent concern on the power requirements …

The use of a single bimorph as a harmonic oscillator aimed at harvesting vibrational energy
is not effective due to its inherent narrow frequency bandwidth stemming from the need to …

(1. 西安科技大学机械工程学院, 陕西西安710054; 2. 陕西省矿山机电装备智能监测重点实验室,
陕西西安710054) 摘要: 煤矿井下综采设备工作时会产生较大振动, 利用压电振动能量收集系统 …

Multi-directional and multi-degree-of-freedom (multi-DOF) vibration energy harvesting are
attracting more and more research interest in recent years. In this paper, the principle of a …

This letter presents a composite piezoelectric and electromagnetic converter with a ball-
impact structure. It is composed of a magnet ball enclosed among two piezoelectric …

In this paper, a portable battery-powered energy-logger circuit to monitor the energy
harvested by different piezoelectric converters mounted on selected positions of the human …

This paper demonstrates a hybrid converter, which, for the first time, combines both the
piezoelectric and the electromagnetic mechanisms in a ball-impact structure. The converter …