新型壓電技術(shù)驅(qū)動(dòng)振動(dòng)能量采集

　　壓電晶體技術(shù)多年來(lái)一直被用來(lái)在晶體被擠壓時(shí)產(chǎn)生火花，但最近相反的效果正在引起更多的興趣。現(xiàn)在使用振動(dòng)和運(yùn)動(dòng)可以產(chǎn)生動(dòng)力來(lái)驅(qū)動(dòng)無(wú)線(xiàn)鏈路和電子設(shè)備。硅器件功耗的降低創(chuàng)造了更多的機(jī)會(huì)來(lái)取代電池并提供“免費(fèi)”電源。

　　例如在波特蘭，俄勒岡，綠色Microgym，用該技術(shù)來(lái)捕捉運(yùn)動(dòng)員創(chuàng)造了特殊的運(yùn)動(dòng)機(jī)器的能量。所產(chǎn)生的電能幫助健身房減少60%的能源開(kāi)支。同樣，在荷蘭，鹿特丹瓦特俱樂(lè)部在舞池中使用壓電技術(shù)。當(dāng)人們跳舞時(shí)，震動(dòng)為建筑物產(chǎn)生力量。

　　根據(jù)市場(chǎng)研究者派克的研究，對(duì)設(shè)備的能量收集需求在未來(lái)四年將翻兩番。能量收集的部署將年均復(fù)合增長(zhǎng)率（CAGR）近38%在接下來(lái)的幾年里，導(dǎo)致每年的出貨量的能量收集設(shè)備2億3540萬(wàn)臺(tái)2015從今年5300萬(wàn)的基地，一個(gè)巨大的多樣性的消費(fèi)和工業(yè)應(yīng)用。

　　Those shipments will translate into worldwide annual revenue from energy harvesting enabled devices of $9.5 billion in 2015， the clean tech market intelligence firm forecasts. “Devices in settings with thousands of sensors that are diligently working to bring us information about temperature， humidity， security， machine health， structural health， and many other forms of data are becoming increasingly pervasive，” said Bob Gohn， vice president at Pike Research. “In many of these applications， maintaining batteries is a major logistical and cost issue. Viable energy harvesting technology exists today and developers are fast becoming familiar with how to implement it into ever more-innovative devices.”