天天彩票

中文/ English +86-577-61761217


新聞資訊

電磁鐵的歷史

  • 來源:本站
  • 發布時間:2018-05-23
  • 瀏覽量:1039

1822年,法國物理學家阿拉戈和呂薩克發現,當電流通過其中有鐵塊的繞線時,它能使繞線中的鐵塊磁化。這實際上是電磁鐵原理的最初

發現。1823年,斯特金也做了一次類似的實驗:他在一根并非是磁鐵棒的U型鐵棒上繞了18圈銅裸線,當銅線與伏打電池接通時,繞在 U型鐵棒上的銅線圈即產生了密集的磁場,這樣就使U型鐵棒變成了一塊“電磁鐵”。這種電磁鐵上的磁能要比永磁能大放多倍,它能吸起比 它重20倍的鐵塊,而當電源切斷后,U型鐵棒就什么鐵塊也吸不住,重新成為一根普通的鐵棒。 斯特金的電磁鐵發明,使人們看到了把電能轉化為磁能的光明前景,這一發明很快在英國、美國以及西歐一些沿海國家傳播開來。 1829年,美國電學家亨利對斯特金電磁鐵裝置進行了一些革新,絕緣導線代替裸銅導線,因此不必擔心被銅導線過分靠近而短路。由 于導線有了絕緣層,就可以將它們一圈圈地緊緊地繞在一起,由于線圈越密集,產生的磁場就越強,這樣就大大提高了把電能轉化為磁能的能 力。到了1831年,亨利試制出了一塊更新的電磁鐵,雖然它的體積并不大,但它能吸起1噸重的鐵塊。

聯系方式

咨詢熱線:+86-577-61761217

傳真:+86-577-61767217

郵編:325604

網址:www.yuanyouai.com

郵箱:info@cn-zye.com

Copyright ?2018~2019              樂清市正永機電有限公司             浙ICP備11024793號-1

天天彩票

<i id="vbdlx"></i>

www.881456.com | www.660686.com | 3559iiii.com | www.643sunbet.com | www.783309.com | 3522600.com | www.89599g.com | b9973.com | www.901718.com | www.cccrrr.com | c388u.com | www.123377.com | www.501349.com | 8901r.com | www.hd8676.com | 33382ff.com | www.195666.com | www.367137.com | 97297d.com | www.6482v.com | 0033buyu.com | www.958443.com | 0088.com | www.6020200.com | www.ascp6.com | facai86.com | www.1466o.com | 69447733.com | www.98698k.com | P35.com | www.www998sun.com | www.864355.com | 2846.com | www.61233d.com | wx3399.com | www.222335.com | 336.cc | www.366908.com | rr474.com | www.799666s.com | 2467.com | www.vns3678.com | 22698hh.com | www.279765.com | www.456685.com | www.333222v.com | www.hy5508.com | omy88.com | www.29400.com | 3379e.com | www.80065t.com | 6261q.com | www.6482x.com | u7742.com | www.1466g.com | 7742c.com | www.hg27288.com | 9101902.bet | www.99788p.com | 8577l.cc | www.2373i.com | www.912006.com | 8180v.com | www.xpj539.com | sxmlr.net | www.9409.com | 3225i.com | www.qmc0033.com | 36400011.com | www.30350v.com | 67890s.com | www.pj56k.com | 50000944.com | www.cp8018.cc | www.8124f.com | www.444237.com | www.hg7869.com | 80850y.com | www.9560gg.com | 836858.com | www.06820d.com | 39199k.com | www.910057.com | 6220e.com | www.c6449.com | www.76543s.com | www.55228i.com | www.00166b.com | v77033.com | www.369406.com | 08159p.com | www.1035aa.com | www.www-866766.com | www.010986.com | www.0010013.com | 59599.com | www.780780d.com | a2490.com | www.fyyy3.com | www.sun7707.com | 55331ii.com | www.4996xt.com | 4541p.com | www.3479r.com | www.mgm3838.com | 8988h.com | www.245885.com | ii38648.com | www.971291.com | www.ms8873.com | 9484.com | www.88801.com | 937012.com | www.78949e.com | www.99113k.com | 3467z.am | www.927699.com | www.444714.com | hy843.com | www.50024k.com | www.40686e.com | 908080j.com | www.56720.com | www.32126q.net | 5598510.com | www.xpj8896.com | 5350w.com | 16690055.com | www.o1432.com | 8290b.com | www.33588e.com | www.4196t.com | 339850a.com | 4880t.com | www.69567k.com | 6177004.com | le888r.com | www.256095.com | www.x32126.cc | 696.net | www.3155hd.com | www.kelake77.com | 0208kk.com | www.axc2.com | www.171038.com | 3434uuu.com | www.yy63.com | www.2850899.com | 6150.com | www.178753.com | www.sss2848.com | www.341188.com | 6175a.com | www.2109g.com | www.0177msc.com | 33382h.com | qq365g.com | 55818b.com | xianboba.co | www.h36599.com | www.x5055.com | 4255fff.com | www.97365.com | www.58777w.com | www.8473l.com | 228888b.com | www.61343.com | www.jsc999.com | 88021aa.com | biying950vip.com | www.26878h.com | www.5099tt.com | www.jsc999.com | zhcp96.com | 33432g.com | 188qq.com | www.912454.com | www.hg77740.com | www.c5c33.com | www.0860t.com | 0747n.com | 35222xx.com | 59599h.com | www.585868.cc | www.77802y.com | www.377666y.com | www.9196hg.com | www.vns8892.com | 33382e.com | 092.com | 4411mmmm.com | www.32123e.com | www.911888aa.com | www.js69.com | www.630269.com | www.tk355.com | www.u22365.com | 7196bb.com | ddcp11.com | 3807o.com | 1479b.com | 7945jj.com | www.325477.com | www.cp8002.cc | www.77114j.com | www.rrqp111.com | www.4058kk.com | www.77731w.com | www.457777.com | www.21365dd.com | www.yyhbet9.com | 3189b.com | 4289k.com | 23300d.com | 22222007.com | 35252l.com | xin888e.com | xpj66888.com | www.286276.com | www.717885.com | www.ya638.com | www.66376g.com | www.68993266.com | www.44118k.com | www.bb673888.com | www.yzcp2025.com | www.9611h.com | www.tqdc222.com | www.hg1322.com | www.36677b.com | www.mh3888.com | www.wst.vip | 44488k.com | 9149s.com | zhcp96.com | 2jskkk.com | 4995z.com | 32212g.com | df8ff.com | vv879404.com | 69445544.com | 86811ll.com | 61772222.com | yun889.com | 33313k.com | 51133ppp.com | 118888s.com | ag80.vip | hgw168m.com | 36404433.com | yk117.com | 4499vn77.com | 19990c.com | 36401199.com | 20550371.com | 9479.com | 509.com | 4340bb.com | 51335n.com | yf2444.com | zz00558.com | 2247v.com | 256777t.com | 22207t.com | www.hg582.com | www.4xinhao.com | www.25288m.com | www.blm599.com | www.js9741.com | www.hnwmrx.com | www.38345x.com | www.sha4111.com | www.eee2848.com | www.68993256.com | www.771493.com | www.87096.com | www.cp718.net | www.602452.com | www.152918.com | 7792x.com | rf034.com | 8905b.com | 3614u.com | 2078d.com | js14w.com | www.17848.cc | www.064808.com | www.8707y.com | www.55060t.com | www.xpj3133.net | www.999sun.com | www.f093.com | www.401268.com | jmszszx.com | 66300vip39.com | v1155.tv | 55992007.com | 56987ee.com | www.76543i.com | www.xpj183.com | www.xj6003.com | www.hg9070.com | 61789r.com | 06386363.com | 86611a.com | 87665q.com | www.67797t.com | www.443558.com | www.0071331.com | www.ylylc01.com | www.22ttz.com | www.128760.com | 364493.com | hjcp7.com | 1318345.com | www.2846t.com | www.365279c.com | www.30350j.com | www.71233l.com | www.580667.com | n62365.com | 4025w.com | 3225u.com | www.sb8860.com | www.7415ee.com | www.js02349.com | www.810601.com | ysb95.com | 9384444.com | 8901r.com | www.39543.com | www.x063801.com | www.02022.com | www.025728.com | 041122r.com | 3844j.com | www.6555567.com | www.9b009.com | www.430188.com | www.369071.com | x8519.com | 028365365.com | www.133vns.com | www.673888p.com | www.39500z.com | www.60007i.com | 6261ww.com | 2649zz.com | www.hg0818.com | www.12136q.com | www.ch8678.com | 426601.com | 3522g.vip | 77424466.com | xpj8.com | x48k.com | www.746778.com | www.567111.net | www.453552.com | 222v22.com | 9103ww.com | www.ylg1212.com | www.yun873.com | www.340680.com | 9063555.com | yyh913.com | www.79500s.com | www.77210j.com | 2139.com | 3726z.com | www.142357.com | www.493337.com | www.590801.com | 1288m.com | www.vns7828.com | www.10999h.com | www.033.la | 112d.net | 69990p.com | www.rcw058.com | www.9928e.com | bet88w.com | 24002.com | www.ys0033.com | www.68682d.com | an6988.com | 111122xx.com | www.752suncity.com | www.50052l.com | 9002s.com | 1665cc.com | www.673888s.com |