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 <title><![CDATA[郁闷！变频器拖动丝杠定位，为何偏差很大？]]></title>
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 <description><![CDATA[Latest 50 replies of 郁闷！变频器拖动丝杠定位，为何偏差很大？]]></description>
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 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1434545.html]]></link>
 <author><![CDATA[浪子海心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 22 Apr 2013 09:37:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加编码没有？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1434542.html]]></link>
 <author><![CDATA[luo76]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 22 Apr 2013 09:30:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1434166.html]]></link>
 <author><![CDATA[潇湘风竹]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 21 Apr 2013 13:08:18 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[哎，苦命的工控人！既要低成本，还要高性能！不好办啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433791.html]]></link>
 <author><![CDATA[f118]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Apr 2013 12:06:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器+丝杠+旋转编码器,可以做到0.1mm级精度！！！变频器要有高低速，程序里要做成自动减去丝杠间隙功能。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433753.html]]></link>
 <author><![CDATA[wwfxx]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Apr 2013 09:58:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 看来问题就在此。前一段时间我做了个系统，只不过我是齿条，平移运动尚可以满足定位要求，而上下运动始终存在定位位置有偏差（偏差是随机的）。我检测的传感器的旋转编码器，通过链条在输出轴上面取电机传动速度值，每次循环运动时我都做一次复位（计数值复位是通过软件门实现的）。 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433215.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 01:50:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[哈哈，首先加速时间肯定要短，还有就是要有低速缓冲区，这样要是达不到你的要求，哥们换伺服吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433204.html]]></link>
 <author><![CDATA[hafatahaha]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 01:38:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你要精度高，一定要用伺服电机的。 具体可以咨询我。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433184.html]]></link>
 <author><![CDATA[selema]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 01:08:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[可以做到mm级精度！！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433168.html]]></link>
 <author><![CDATA[leechonghua]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 00:52:28 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[跟你检测方式也有关哟]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433154.html]]></link>
 <author><![CDATA[tkggtdkjpl]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 00:28:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[要是偏差不大，你让伺服电机怎么活 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433080.html]]></link>
 <author><![CDATA[王大饼]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 18 Apr 2013 13:05:35 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[降底变频器的减速时间]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1425323#1433048.html]]></link>
 <author><![CDATA[向钱冲]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 18 Apr 2013 11:45:09 +0000]]></pubdate>
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