کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1651078 | 1517331 | 2008 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Energy-harvesting characteristics of PZT-5A under gunfire shock Energy-harvesting characteristics of PZT-5A under gunfire shock](/preview/png/1651078.png)
The energy-harvesting behaviors of a ring-shaped PZT-5A element exposed to gunfire shock are investigated for military applications such as an in-flight power source for electronic fuze. A laboratory test using a pneumatic shock machine up to 3000 g's and a gunfire test accompanied by the acceleration of 65,000 g's have been performed. The PZT-5A element subjected to gunfire shock has worked in its strong-depolarization region, thereby generating the electric energy whose quantity is about 140.4 times larger than that measured in its linear operation region. The experimental studies on the PZT-5A element under dynamic load have demonstrated three physico-electric characteristics: the dependence of piezoelectric constant on load-rate, the shock-aging of piezoelectric effect, and the dependence of energy-transfer efficiency on the change in normalized impulse.
Journal: Materials Letters - Volume 62, Issues 21–22, 15 August 2008, Pages 3632–3635