电流的测量方法
大家有好的（更方便的）电流测量法吗？ ***400;200;400,200;;** m18,28 l19,28,27,38,28,40,31,43,32,45,33,46,35,47,38,50,39,50,39,51,41,51,41,52,43,52,43,53 e|********* m20,58 l34,72,35,72 e|********* m7,122 l8,122,9,121,9,120,10,120,13,118,17,117,18,115,21,113,26,110,32,107,34,105,38,104,43,102,46,100,47,100,50,99,55,94,55,93,56,93,56,88 55,87,55,86,54,85 e|********* m50,32 l51,32,51,33,52,33,53,34,54,36,56,38,56,39,58,40,58,42,59,42,60,44,60,45,61,46,62,48,62,49,64,51,64,52,65,54,65,61 e|********* m57,32 l59,31,60,31,60,30,61,30,63,29,64,28,67,27,69,27,69,26,72,26,74,25,78,25,82,24,84,24,86,23,87,23,89,22,96,22,96,23,97,24 97,25,98,27,99,30,99,32,100,34,100,49,101,52,101,71,100,72,100,73 e|********* m74,49 l75,53,77,56,77,58,78,61,78,64,79,67,79,84,77,90,77,92,76,95,74,99,72,102,72,103,71,106,69,110,69,113,68,113,67,115,64,118,64,119 62,119,62,121,61,121,60,122,58,122,58,121 e|********* m80,92 l80,97,81,99,81,101,82,101,82,102,84,106,84,107,85,108,86,110,90,114,90,115,93,118,94,117,94,116,95,116 e|********* m112,62 l113,65,113,66,114,68,114,71,115,72,115,82 e|********* m138,48 l139,54,139,63,140,68,140,73,141,78,142,81,142,86,143,90,143,129,142,130,141,132,141,135,140,136,140,138,139,139,139,140,133,140,131,139,130,137,126,135 123,133,120,130,116,128,114,126,111,124,107,121,104,119,102,119,98,116 e|********* m180,59 l188,67,190,67,190,68,191,68,192,69,192,70,193,70,193,72 e|********* m182,84 l187,83,189,82,196,82,196,93,195,95,193,97,192,100,192,101,190,103,189,105,188,108,188,109,186,110,185,112,184,113,184,114,183,114,183,115,182,115,182,116 188,116,192,115,199,114,203,113,208,112,214,111,216,110,220,109,225,107,230,107,232,106,234,104,236,104,238,103,239,102,239,100 e|********* m208,80 l211,78,215,78,223,76,225,75,230,75,240,73,241,72,246,71,250,71,254,70,255,70,258,68,261,67,263,67,263,66,265,65,269,65,269,64,271,63,277,63 e|********* m234,83 l235,83,236,85,237,85,237,86,239,86,239,87,243,91,245,95,246,96,246,105,245,107,243,108,241,112,237,113,234,115,231,116 e|********* m203,135 l206,137,209,138,234,138,236,137,243,136,250,134,254,131,257,130,261,129,269,123,270,122,274,119 e|********* m241,41 l243,48,246,54,247,58,250,62,253,68,254,71,258,81,261,85,265,92,268,98,272,104,273,105,277,112,280,117,282,120,283,121,284,123,285,123,286,124,286,125 290,127,292,127,297,122,299,116,301,112,302,108,303,102,304,100,304,94 e|********* m272,40 l272,54,273,58,273,61,274,67,275,71,275,76,276,79,277,79,278,80 e|********* m286,70 l287,74,289,76,293,84,293,85,294,88,298,96,300,99,302,104,305,108,306,110,308,113,309,114,309,116,310,117,312,118,312,119,313,120,313,121,308,116 e|********* m318,63 l325,62,327,61,329,61,331,60,333,60,335,59,338,59,339,58,342,58,342,57,343,56,344,56,345,55,346,55,346,54,347,54,348,53,348,49 e|********* m319,30 l323,38,329,48,332,52,334,56,337,60,344,69,345,71,352,79,354,82,356,86,358,89,359,91,359,92,360,94,360,95,361,97,362,100,363,100,361,98 e|********* m350,43 l350,53 e|********* m343,24 l343,28,344,28,344,29,345,30,345,31,346,32,347,34,348,34 e 用万用表测一下不就是了 灌水啊！.................................. 用万用表测一下就可以了 1# 热风 万用表测试下就可以了 谁问这么傻的问题？KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 这上面都是什么人？是不是对电子灯箱都有兴趣的人？ 除了用万用表还有其他方法吗？ 本人修了多年电器万用表用惯了 做led还是在用万用表估计把表笔改成两个小夹子会更好用 这也太简单了，看你用什么样的电流表！万用表够你用了！{:1_118:} ***400;200;400,200;;** m67,46 l108,46,125,44,142,43,148,42,158,41,161,41,169,40,172,39,173,38,174,38,176,37,177,37,178,36,180,35,182,35 e|********* m133,51 l133,52,132,53,132,56,131,59,131,63,130,66,130,130,129,131,129,134,126,134,124,135,123,136,122,136,120,137,119,137,118,135,109,126,100,120,95,115,93,112 90,109,88,106 e|********* m184,20 l193,20,204,23,212,25,246,27,274,27,274,25 e|********* m209,31 l205,37,204,43,202,48,202,50,199,55,198,56,196,61,196,62,195,63,194,65,194,66,195,66,198,65,201,65,212,64,218,63,239,59,247,58,264,56,278,56 281,55,281,56,282,57,282,77,281,82,280,85,278,89,278,90,277,91,274,91,273,89,270,87,264,85,260,83,249,77,240,72 e|********* m195,60 l194,64,194,76,193,77,193,79,192,82,191,83,191,86,189,89,188,90,188,91,187,93,185,93,184,95,183,95 e|********* m223,68 l224,68,224,88,223,95,222,98,220,109,220,111,219,118,217,126,216,129,214,138,212,141,209,147,208,148,207,151,205,153,204,153,204,155,201,152,201,150,199,150 198,147 e|********* m218,122 l220,121,221,121,223,123,224,123,225,125,228,128,229,130,232,133,236,138,238,139,245,146,250,150,255,153,257,154,264,157,268,159,273,161,285,165,293,166,296,167 318,167,320,166,321,166,322,165,324,164,325,164,325,161,326,159 e|********* m314,97 l312,97,312,95,313,92 e|********* m341,85 l341,89,340,90,338,91,338,92,336,92,334,93,333,94,330,94,328,95,325,96,324,97,321,97,320,96,319,94,318,94,317,92,316,92 e|********* m316,74 l329,74,331,76,334,76,335,77,336,77,337,78,337,79,338,81,339,82,339,83,341,84,341,89,340,91,330,91,325,90,324,89 e|********* m357,58 l358,59,361,59,361,61,363,61,365,63,365,65,363,67,362,67,362,79,361,81,359,81,358,82,355,82,354,83,350,83,349,82,348,80,346,78,346,77,345,76 e|********* m343,72 l343,74,344,76,344,118,343,121,343,152,345,146 e|********* m380,68 l382,66,384,66,389,65,392,64,394,64,397,63,398,62,398,61,396,61,396,62,395,63,395,65,394,66,393,69,392,70,392,78,391,84,390,87,390,92,388,100 388,111,387,114,387,122,386,123,386,179,385,181,385,182,384,183,384,185,382,185,382,183,380,183,377,177,368,167,363,163,358,158,356,155,353,152,352,150,352,148 e|********* m365,101 l366,101,368,102,369,103,369,112,368,114,368,115,367,116,365,117,364,116,363,114,362,114,362,112,361,111,361,110,360,108,359,107,359,106,358,104,358,102,357,101 358,100,359,100,361,99 e 方法是有的！测量限流电阻上面的电压后与电阻值一计算就知道电流多大了。 用钳形表啊，一夹线就知道了 用万用表电压档测量串联在灯串上面的电阻两端的电压值，然后用这个电压除这个电阻就是电流了。I=U/R。比如你在1K的电阻两端测出了一个18.5V的电压，那么这串灯的电流就是18.5/1=18.5mA。 除了用万用表还有其他方法吗？ 用电流表短路一个灯珠直接测就行 差不多少的 认真学习，我一般就用万用表 回答得很好。谢谢提供 回复 1# 热风
卡卡 ............................................... 真实学习了。。想必这将会很好用
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