170AEC92000，170AEC92000

170AEC92000

 

170AEC92000
（2）線圈在安裝前，要進行外觀檢查
 
使用前，應(yīng)檢查線圈的結(jié)構(gòu)是否牢固，線匝是否有松動和松脫現(xiàn)象，引線接點有無松動，磁芯旋轉(zhuǎn)是否靈活，有無滑扣等。這些方面都檢查合格后，再進行安裝。
 
（3）線圈在使用過程需要微調(diào)的，應(yīng)考慮微調(diào)方法
 
有些線圈在使用過程中，需要進行微調(diào)，依靠改變線圈圈數(shù)又很不方便，因此，選用時應(yīng)考慮到微調(diào)的方法。例如單層線圈可采用移開靠端點的數(shù)困線圈的方法，即預(yù)先在線圈的一端繞上3圈～4圈，在微調(diào)時，移動其位置就可以改變電感量。實踐證明，這種調(diào)節(jié)方法可以實現(xiàn)微調(diào)±2%－±3%的電感量。應(yīng)用在短波和超短波回路中的線圈，常留出半圈作為微調(diào)，移開或折轉(zhuǎn)這半圈使電感量發(fā)生變化，實現(xiàn)微調(diào)。多層分段線圈的微調(diào)，可以移動一個分段的相對距離來實現(xiàn)，可移動分段的圈數(shù)應(yīng)為總?cè)?shù)的20%－30%。實踐證明：這種微調(diào)范圍可達10%－15%。具有磁芯的線圈，可以通過調(diào)節(jié)磁芯在線圈管中的位置，實現(xiàn)線圈電感量的微調(diào)。
線圈在使用中，不要隨便改變線圈的形狀。大小和線圈間的距離，否則會影響線圈原來的電感量。尤其是頻率越高，即圈數(shù)越少的線圈。所以，在電視機中采用的高頻線圈，一般用高頻蠟或其他介質(zhì)材料進行密封固定。另外，應(yīng)注意在維修中，不要隨意改變或調(diào)整原線圈的位置，以免導(dǎo)致失諧故障。
 
（5）可調(diào)線圈的安裝應(yīng)便于調(diào)整
 
可調(diào)線圈應(yīng)安裝在機器的易于調(diào)節(jié)的位置，以便于調(diào)整線圈的電感量達到的工作狀態(tài)
線圈在使用中，不要隨便改變線圈的形狀。大小和線圈間的距離，否則會影響線圈原來的電感量。尤其是頻率越高，即圈數(shù)越少的線圈。所以，在電視機中采用的高頻線圈，一般用高頻蠟或其他介質(zhì)材料進行密封固定。另外，應(yīng)注意在維修中，不要隨意改變或調(diào)整原線圈的位置，以免導(dǎo)致失諧故障。
 
（5）可調(diào)線圈的安裝應(yīng)便于調(diào)整
 
可調(diào)線圈應(yīng)安裝在機器的易于調(diào)節(jié)的位置，以便于調(diào)整線圈的電感量達到的工作狀態(tài)

 

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