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 <title><![CDATA[怎么用PLC判断圆柱体旋转了半圆？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610.html]]></link>
 <description><![CDATA[Latest 50 replies of 怎么用PLC判断圆柱体旋转了半圆？]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[要简单就用光电开关，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610#1156126.html]]></link>
 <author><![CDATA[建筑人生]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 03 Nov 2011 13:49:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[恩，编码器就行了，如果精度要求高就用伺服电机，步进电机的也行]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610#1155791.html]]></link>
 <author><![CDATA[金海洋]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 03 Nov 2011 07:13:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用编码器检测。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610#1155764.html]]></link>
 <author><![CDATA[mjchwan]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 03 Nov 2011 06:30:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[步进电机，伺服电机，都可以，不要求特别高精度，就用编码器加变频器带普通电机]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610#1155508.html]]></link>
 <author><![CDATA[wh24220277]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 18:39:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[速度不高的话带编码器的变频电机应该可以，通过编码器位置确定。高速的话就得用伺服电机了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124610#1154437.html]]></link>
 <author><![CDATA[yangxianhui]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 08:59:18 +0000]]></pubdate>
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