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 <title><![CDATA[电流信号怎么转电压信号]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173.html]]></link>
 <description><![CDATA[Latest 50 replies of 电流信号怎么转电压信号]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174280.html]]></link>
 <author><![CDATA[llllll]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 30 Nov 2011 01:02:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了···原来这样就可以了····谢谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174256.html]]></link>
 <author><![CDATA[100759]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 30 Nov 2011 00:33:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有没有人可以画一个电路出来]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174245.html]]></link>
 <author><![CDATA[lilindong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 30 Nov 2011 00:25:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[要不要加放大电路]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174244.html]]></link>
 <author><![CDATA[lilindong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 30 Nov 2011 00:25:30 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[对了 好好学习欧姆定理]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174243.html]]></link>
 <author><![CDATA[lilindong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 30 Nov 2011 00:24:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[建议楼主好好学习一下欧姆定律！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174233.html]]></link>
 <author><![CDATA[回忆依然最美]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 23:58:20 +0000]]></pubdate>
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 <description><![CDATA[如果给定的是个4-20毫安电流信号，而需要的是1-5V电压信号，那么在1-5V的信号端子上并个250欧的电阻，那么就OK了，因为你需要的电压信号阻抗很高，信号电流经过这个250欧的电阻构成回路，你的取样电压就是这个电阻两端的电压。
同样的，如果给定是1-5V电压信号，需要4-20毫安信号，那么你把250欧的电阻串到回路里面，就OK ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174150.html]]></link>
 <author><![CDATA[redrock99]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 14:22:50 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174081.html]]></link>
 <author><![CDATA[樊晴信]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 13:31:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[对4-20ma的电流讯号，可接到输入1-5V的电压输入端，只要在输入端并一个250欧的电阻，就能把电流讯号转化成电压讯号。
电压讯号转电流讯号就比较麻烦，一般要经过变换器转换。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174046.html]]></link>
 <author><![CDATA[znz43]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 12:47:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有点难。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174024.html]]></link>
 <author><![CDATA[liuhanqi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 12:20:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[串啊 还是并啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174004.html]]></link>
 <author><![CDATA[xubin1985]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 12:00:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是可以加个电阻的么&nbsp;&nbsp;就是不知道电阻的接法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1174002.html]]></link>
 <author><![CDATA[xubin1985]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 11:59:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[互感器。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-129173#1173995.html]]></link>
 <author><![CDATA[jhwuliangjin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Nov 2011 11:55:12 +0000]]></pubdate>
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