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作者 threedices 在 PTT [ Physics ] 看板的留言(推文), 共85則
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5F→:op amp慢半拍 跟不上輸入的訊號..10/10 13:43
12F推:"超音波"加熱應該是指 ultrasonic welding吧09/18 07:57
13F→:應該類似摩擦熔接沒錯09/18 07:57
14F→:例如 http://youtu.be/KTe8FBNAREA09/18 07:58
6F推:9V內部 http://goo.gl/yNraH07/05 12:34
5F→:把手機套拆了..磁鐵拿出來再縫回去...05/28 15:26
19F推:強光損害CCD http://youtu.be/Ldh8nUs7pVE05/18 07:46
20F→:不是不可能...但用LED應該還好 上面影片是雷射05/18 07:47
21F推:類似樓上greature,拿塊玻璃,用油性麥克筆畫幾條線03/28 10:56
22F→:蒸鍍完後用acetone洗掉做lift off,然後用profilometer03/28 10:57
5F推:依在加拿大的生活經驗..這應該是水氣重+風02/13 15:15
6F→:可能也有點雪雨的情況吧02/13 15:16
7F→:水氣太飽和了,所以有點結晶狀,牌子可能本來是有雨水02/13 15:17
8F→:雨水結冰,然後開始結晶的02/13 15:17
9F→:所以牌子上的"應該"不是下雪後黏上去的02/13 15:21
10F推:濕雪吹上去會像 http://tinyurl.com/4zlnoux02/13 15:23
11F→:而乾雪吹很多 吹上去的會像http://tinyurl.com/4n377yb02/13 15:24
12F→:所以我覺得那應該是水氣飽和凝結的"冰晶"02/13 15:26
14F→:回樓上...你不會想在外面給雪滅頂吧..02/14 13:35
15F→:那種好歹也要一個小時...02/14 13:36
16F→:PS.那圖是google來的..02/14 13:36
17F→:而一個小時是非常嚴重的暴風雪了02/14 13:37
4F推:還要知道average power跟repetition rate吧?01/26 06:02
5F→:假如只是怕把東西燒掉/熔掉,把它當square wave估就好01/26 06:04
6F→:要更精確的話請講更詳細一點01/26 06:05
7F→:(以上是假設你講時間軸的pulse width)01/26 06:06
1F→:2小時變6分鐘太毫洨...兩小時還是兩小時,不會是六分鐘11/09 13:11
2F→:時間這單位只是刻意訂出來好溝通用11/09 13:11
4F→:人家反應快是人家的事,功課有人可以1Hr寫完有人要整天11/09 13:13
5F→:反應快就是反應快...何必麻煩扯個外星人/鬼進來?11/09 13:14
2F→:這大概就一本大百科..其中一篇在講LED08/13 03:16