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 <title><![CDATA[卷径计算]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712.html]]></link>
 <description><![CDATA[Latest 50 replies of 卷径计算]]></description>
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 <description><![CDATA[使用超声波传感器检测料卷的厚度，再经过换算。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712#1671844.html]]></link>
 <author><![CDATA[雪花飘飘]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 31 May 2015 03:33:16 +0000]]></pubdate>
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 <description><![CDATA[用超声波传感器很准确]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712#1671840.html]]></link>
 <author><![CDATA[自游自在]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 31 May 2015 03:28:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[买个超声波传感器或者用另外一种算法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712#1671014.html]]></link>
 <author><![CDATA[lqc2856]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 May 2015 05:06:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[薄膜的厚度，每次都不一样的，每次都要去设定他的厚度，有点麻烦，有没有不需要它的厚度来计算它的卷经的，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712#1671007.html]]></link>
 <author><![CDATA[qiaoziqiang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 May 2015 04:30:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用面积法来做，π（D2/2）^2-π（D1/2）^2=u*L&nbsp;&nbsp;&nbsp;&nbsp; D2为大径，即要求的实时直径，D1为初始直径，u为膜厚，L为长度。现在只要知道实时长度以及膜厚就可以知道实时直径了，这种算法实际与理论差距不大，我试过几台设备了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1513712#1670936.html]]></link>
 <author><![CDATA[lqc2856]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 May 2015 01:11:52 +0000]]></pubdate>
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