?? 紅外測障電路.htm
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vAlign=bottom bgColor=#d1d9e2>__________________________<BR>My Blog:
<BR><BR>http://wudi_01.blogcn.com </TD></TR>
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width=7>2006-02-10,21:44:45 </TD>
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vAlign=top align=left width="19%" bgColor=#e8e8e8 rowSpan=2>【3樓】 <FONT
color=#000000>wudi 無敵</FONT><BR><IMG height=120
src="紅外測障電路.files/armok01148898.jpg" width=120><BR>積分:<FONT
color=#000000>567</FONT><BR>派別:<FONT color=#000000></FONT><BR>等級:<FONT
color=#000000>------</FONT><BR>來自:<FONT color=#000000>上海</FONT><BR></TD>
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color=#000000>乍一看還以為彩虹兄發(fā)的。。。。。</FONT> </TD></TR>
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vAlign=bottom bgColor=#e8e8e8>__________________________<BR>My Blog:
<BR><BR>http://wudi_01.blogcn.com </TD></TR>
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width=7>2006-02-10,21:47:32 </TD>
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vAlign=top align=left width="19%" bgColor=#d1d9e2 rowSpan=2>【4樓】 <FONT
color=#000000>HJJourAVR </FONT><BR>積分:<FONT
color=#000000>4933</FONT><BR>派別:<FONT color=#000000></FONT><BR>等級:<FONT
color=#000000>------</FONT><BR>來自:<FONT color=#000000></FONT><BR></TD>
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color=#000000>方波發(fā)生器加鎖相環(huán)檢測,抗干擾能力很強(qiáng)。 <BR>LM567好用又便宜,很常用。 <BR><BR>這個電路沒有加入調(diào)制。
<BR><BR>即使使用38K有源晶振,接收也需要選頻才好,鎖相環(huán)檢測是不錯的選擇(CD4046,LM567)</FONT> </TD></TR>
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bgColor=#d1d9e2>__________________________<BR>因?yàn)橛行┦虑?amp;nbsp;我知道你不知道,
<BR>也有一些事情 你知道我不知道, <BR>還有些事情 他知道你我不知道, <BR>所有這些事情 說了大家才知道。
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align=left width="19%" bgColor=#d1d9e2><IMG height=1 src=""
width=7>2006-02-11,09:06:06 </TD>
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vAlign=top align=left width="19%" bgColor=#e8e8e8 rowSpan=2>【5樓】 <FONT
color=#000000>zhou_1989 </FONT><BR>積分:<FONT
color=#000000>191</FONT><BR>派別:<FONT color=#000000></FONT><BR>等級:<FONT
color=#000000>------</FONT><BR>來自:<FONT color=#000000>上海</FONT><BR></TD>
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color=#000000>567鎖相,因?yàn)轭l率飄了也無所謂。</FONT> </TD></TR>
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bgColor=#e8e8e8>__________________________<BR>Deram dream
<BR>Dream every Day </TD></TR>
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align=left width="19%" bgColor=#e8e8e8><IMG height=1 src=""
width=7>2006-02-11,09:08:28 </TD>
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vAlign=top align=left width="19%" bgColor=#d1d9e2 rowSpan=2>【6樓】 <FONT
color=#000000>ghost2 </FONT><BR>積分:<FONT
color=#000000>700</FONT><BR>派別:<FONT color=#000000></FONT><BR>等級:<FONT
color=#000000>------</FONT><BR>來自:<FONT color=#000000></FONT><BR></TD>
<TD class=f03
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color=#000000>HJJourAVR兄,圖中用LM567第五腳輸出來調(diào)制的。 <BR>不過可調(diào)電阻太多了。
<BR>還有,輸入輸出未加放大,不知道檢測距離咋樣。 <BR></FONT></TD></TR>
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vAlign=bottom bgColor=#d1d9e2> </TD></TR>
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align=left width="19%" bgColor=#d1d9e2><IMG height=1 src=""
width=7>2006-02-11,19:05:58 </TD>
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