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 <title><![CDATA[传感器用正负电源供电的作用]]></title>
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 <description><![CDATA[[quote]引用第7楼znz43于2013-08-01 09:26发表的&nbsp;&nbsp;:
楼主的行程传感器是能检测正反行程的吧？例如检测振动位移的，为了表示行程的方向，输出是－10V~+10V，那工作电源当然也要用正负电源供电。
如“拉压两用”的力传感器，为了表示力的方向，也要用正负电源供电。
[/quote]
&nbsp;&nbsp;7楼 正解&nbsp;&nbsp;多 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1474844.html]]></link>
 <author><![CDATA[ha741852]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 13 Aug 2013 07:21:54 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第4楼鸭梨山大于2013-08-01 09:05发表的&nbsp;&nbsp;:
这问题有点类似人为什么用两条腿走路！！
[/quote]
&nbsp;&nbsp;只能对此楼无语]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1474842.html]]></link>
 <author><![CDATA[ha741852]]></author>
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 <pubdate><![CDATA[Tue, 13 Aug 2013 07:20:11 +0000]]></pubdate>
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 <description><![CDATA[7楼正解@]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470566.html]]></link>
 <author><![CDATA[zhx1020]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 14:49:42 +0000]]></pubdate>
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 <description><![CDATA[7楼正解]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470283.html]]></link>
 <author><![CDATA[xl_x123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 02:33:59 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[说明书好好看看]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470268.html]]></link>
 <author><![CDATA[jesselai]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 01:51:00 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼主的行程传感器是能检测正反行程的吧？例如检测振动位移的，为了表示行程的方向，输出是－10V~+10V，那工作电源当然也要用正负电源供电。
如“拉压两用”的力传感器，为了表示力的方向，也要用正负电源供电。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470253.html]]></link>
 <author><![CDATA[znz43]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 01:26:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[读不懂你得意思！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470250.html]]></link>
 <author><![CDATA[24k纯帅]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 01:19:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主在贴子中是说“行程传感器”，标题是说“传感器”，楼上可能都误解了。看来一个准确的标题确实很重要 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470249.html]]></link>
 <author><![CDATA[znz43]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 01:17:43 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这问题有点类似人为什么用两条腿走路！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470246.html]]></link>
 <author><![CDATA[二手工控电器]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 01:05:10 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[看不懂]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1470227.html]]></link>
 <author><![CDATA[接近开关厂家]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Aug 2013 00:29:07 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1469537.html]]></link>
 <author><![CDATA[nb58zcw]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Jul 2013 03:45:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[例如&nbsp;&nbsp;-15V&nbsp;&nbsp;+15V 供电]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1433668#1469526.html]]></link>
 <author><![CDATA[ha741852]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Jul 2013 03:18:54 +0000]]></pubdate>
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