一、數字電子鐘的功能有哪些

數字電子鐘是(shi)一種計時(shi)裝置(zhi)，它(ta)具有時(shi)、分、秒(miao)計時(shi)功能和顯(xian)示時(shi)間功能；具有校時(shi)、整(zheng)點報時(shi)、鬧鈴等功能。

數字電子鐘不替代(dai)指針式鐘表，而且由于它采(cai)用(yong)(yong)了(le)石英技術，走(zou)時(shi)精(jing)度(du)高(gao)、穩(wen)定(ding)性好，不需要經常調校，使(shi)用(yong)(yong)攜帶方(fang)便。因此，在定(ding)時(shi)控制(zhi)、自(zi)動報時(shi)及時(shi)間程序控制(zhi)等方(fang)面都得到廣泛(fan)的應用(yong)(yong)。

二、數字電子鐘的工作原理是什么

數字電子鐘的原(yuan)理：石(shi)英晶體(ti)振(zhen)蕩器(qi)和六(liu)級十(shi)(shi)(shi)分(fen)(fen)頻(pin)(pin)(pin)器(qi)組成(cheng)標(biao)(biao)準(zhun)秒(miao)(miao)發生電(dian)路。其中“非”門用(yong)作整形(xing)以進(jin)一(yi)(yi)步改善輸(shu)出(chu)(chu)波形(xing)。利用(yong)二-十(shi)(shi)(shi)計(ji)數(shu)(shu)器(qi)的第(di)四級觸發器(qi)Q3端輸(shu)出(chu)(chu)脈(mo)沖(chong)(chong)(chong)(chong)頻(pin)(pin)(pin)率是計(ji)數(shu)(shu)脈(mo)沖(chong)(chong)(chong)(chong)的十(shi)(shi)(shi)分(fen)(fen)之(zhi)一(yi)(yi)，構造一(yi)(yi)級十(shi)(shi)(shi)分(fen)(fen)頻(pin)(pin)(pin)器(qi)。如果石(shi)英晶體(ti)振(zhen)蕩器(qi)的震蕩頻(pin)(pin)(pin)率為(wei)1赫(he)茲，則經(jing)(jing)六(liu)級十(shi)(shi)(shi)分(fen)(fen)頻(pin)(pin)(pin)后(hou)(hou)(hou)，輸(shu)出(chu)(chu)脈(mo)沖(chong)(chong)(chong)(chong)的頻(pin)(pin)(pin)率為(wei)1赫(he)茲，即周期為(wei)1秒(miao)(miao)，即標(biao)(biao)準(zhun)秒(miao)(miao)脈(mo)沖(chong)(chong)(chong)(chong)。標(biao)(biao)準(zhun)秒(miao)(miao)脈(mo)沖(chong)(chong)(chong)(chong)進(jin)入秒(miao)(miao)計(ji)數(shu)(shu)器(qi)進(jin)行六(liu)十(shi)(shi)(shi)分(fen)(fen)頻(pin)(pin)(pin)后(hou)(hou)(hou)，得出(chu)(chu)分(fen)(fen)脈(mo)沖(chong)(chong)(chong)(chong)；分(fen)(fen)脈(mo)沖(chong)(chong)(chong)(chong)進(jin)入分(fen)(fen)計(ji)數(shu)(shu)器(qi)再經(jing)(jing)六(liu)十(shi)(shi)(shi)分(fen)(fen)頻(pin)(pin)(pin)后(hou)(hou)(hou)得出(chu)(chu)時脈(mo)沖(chong)(chong)(chong)(chong)；時脈(mo)沖(chong)(chong)(chong)(chong)進(jin)入時計(ji)數(shu)(shu)器(qi)。時、分(fen)(fen)、秒(miao)(miao)各計(ji)數(shu)(shu)器(qi)經(jing)(jing)譯碼顯示(shi)出(chu)(chu)來。最大顯示(shi)值為(wei)23小時59分(fen)(fen)59秒(miao)(miao)，再輸(shu)入一(yi)(yi)個脈(mo)沖(chong)(chong)(chong)(chong)后(hou)(hou)(hou)，顯示(shi)復(fu)位成(cheng)零。