Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)

記者柯美儀/台北報導

台鐵一名司機員於列車出庫檢查時感電,手部撞擊金屬配管導致骨裂。(示意圖/資料照)
台鐵一名司機員於列車出庫檢查時感電,手部撞擊金屬配管導致骨裂。(示意圖/資料照)

台鐵一名司機員1日晚間8時30分辦理列車出庫檢查時,不慎碰觸電流錶端子,因感電感電反射動作,導致右手反射撞擊金屬配管發生骨裂,隨即被送往醫院治療。對此,台鐵表示,已啟動調查、檢討改善。

台鐵表示,事件經查為台北機務段司機員辦理出庫檢查時,於電器室內因身體不慎碰觸到電流錶端子(110V),因感電之自然反射動作,導致右手撞擊車內金屬配管而有骨裂現象,機務段接獲通知後,立即將同仁送往醫院檢查並住院治療,該段主管隨後亦至醫院關懷。

針對本次事件,台鐵強調,已立即責令機務段啟動調查,並就事發原因檢討改善,避免再有同仁發生相同事件。Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)



本文來自: https://www.setn.com/News.aspx?NewsID=1730581&utm_campaign=viewallnews
The Log Periodic Antenna  as known as LPDA  is a wideband directional antenna that provides gain and directivity combined over a wide band of frequencies.
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas.
The log-periodic dipole array typical VSWR is 2:1 and operates over a much wider bandwidth and will have a lower gain for an equivalent number of elements.
With this level of performance, it is ideal for many applications, although a log-periodic antenna will be much larger than a Yagi of an equivalent gain.
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