什麼叫做石英錶? - 手錶
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By Ida
at 2005-10-06T00:00
at 2005-10-06T00:00
Table of Contents
如題目..跟平常的手錶有不一樣嗎?
All Comments
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By Ida
at 2005-10-09T19:31
at 2005-10-09T19:31
石英是一種白氧化物,成分為二氧化矽 (SiO2),石英置於震盪電路裡會震動,在特定的條件下,它會將其自身的頻率傳遞到電路中,若將這種特性應用於石英機芯,透過石英震盪器可將電能轉變為動利用機械化設備大量生產電路板,再配以電阻及電容,即可完成其機芯,再裝上錶殼、玻璃及錶帶,一只石英錶即粗略的組裝完成,它的好處是準確、重量輕及保養較容易;缺點是:一般石英電池壽命只有一兩年,常需更換,再者是利用石英振盪的手錶,常使用了五~八年後石英振盪會衰退,相對的準確度會降低,此時便需換裝,但由於現代工業的發達,人工費用高漲,用人工來換裝眾多細小的零件太不符合成本,所以石英錶若出現大故障,通常原廠皆會要求直接換一個新的機芯。
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