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src="static/image/common/oshr.png" alt="分享" />分享<span id="sharenumber">0</span></i></a> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=264708" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'"><i><img src="static/image/common/fav.gif" alt="收藏" />收藏<span id="favoritenumber">0</span></i></a> <a id="recommend_add" href="forum.php?mod=misc&action=recommend&do=add&tid=264708&hash=c5c2364a" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_add').innerHTML + ' 人支持'"><i><img src="static/image/common/rec_add.gif" alt="支持" />支持<span id="recommendv_add">0</span></i></a> <a id="recommend_subtract" href="forum.php?mod=misc&action=recommend&do=subtract&tid=264708&hash=c5c2364a" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_subtract').innerHTML + ' 人反对'"><i><img src="static/image/common/rec_subtract.gif" alt="反对" />反对<span id="recommendv_subtract">0</span></i></a> </div> </td> <td valign="top" class="album_side_r"> <div class="album_side"> <div class="hm mtn mbn"> <a href="http://club.oecr.com/space-uid-144230.html" target="_blank" class="xi2"><img src="http://www.oecr.com/uc_server/avatar.php?uid=144230&size=small" /></a> <span class="tit_author"> <a href="http://club.oecr.com/space-uid-144230.html">MorningTech</a> </span> </div> <div class="date"><span>发布时间:</span> 2014-11-2 20:51</div> <div class="album_info"> <h3>正文摘要: </h3> <p>经常有朋友询问晶控为什么没有频率，或速率容易乱跳。这通常是探头或晶振片及安装有问题，也有可能是仪器侧振荡包问题(x0振荡包容易坏)。如果用户有 多余晶控仪可以对换，或有模拟探头，就能很快定位问题。但拆卸比 ...</p> </div> </div> </td> </tr> </table> </div> </div> <div class="bm vw pl" id="comment"> <div class="bm_h cl"> <h2>回复</h2> </div> <div class="bm_c"> <div id="postlistreply" class="xld xlda mbm"><div id="post_new" class="viewthread_table" style="display: none"></div></div><div id="post_1151582" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-144230.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=144230&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-144230.html" target="_blank" class="xi2">MorningTech</a><em id="author_1151582"> 发表于</em> <span class="xg1 xw0">2015-7-3 14:41:37</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1151582"> 近日，一客户反映晶振损耗值偏大，都90%了。<br /> 频率自检值及损耗值正常，说明晶控仪及振荡包回路正常，问题出在 探头回路。<br /> 该真空室结构特殊，探头电缆长度达1.5米，先更换一个短的，损耗值OK。问题进一步缩小至探头电缆。<br /> 后客户说，该电缆前一日断了重焊接过，换一新长电缆，OK。<br /> 整个过程，万用表都没用，呵呵。<br /> <br /> //损耗值大的情况下，是可以镀膜的，但稳定性会变差。<br /> //XDM-MXC晶控仪可以及时发现探头的性能变化，并以醒目颜色提醒，不赞一个都不行！<br /> </td></tr></table> </div> <div id="comment_1151582" class="cm"> </div> <div id="post_rate_div_1151582"></div> </div> </dd> </dl> </div> <div id="post_1147213" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-144230.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=144230&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-144230.html" target="_blank" class="xi2">MorningTech</a><em id="author_1147213"> 发表于</em> <span class="xg1 xw0">2015-6-29 10:01:51</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1147213"> 半年多的事实证明，这项功能结合 XDM-3K 或 MXC-3K晶控仪阻力损耗(发明专利已授权)功能，对晶振故障的快速定位真的非常有帮助。<br /> <img src="static/image/smiley/Tiger/02.gif" smilieid="140" border="0" alt="" /></td></tr></table> </div> <div id="comment_1147213" class="cm"> </div> <div id="post_rate_div_1147213"></div> </div> </dd> </dl> </div> <div id="post_1135729" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-160602.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=160602&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-160602.html" target="_blank" class="xi2">sh1115</a><em id="author_1135729"> 发表于</em> <span class="xg1 xw0">2014-11-16 18:43:20</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1135729"> 一塌糊涂，牛的。<img src="static/image/smiley/default/lol.gif" smilieid="12" border="0" alt="" /></td></tr></table> </div> <div id="comment_1135729" class="cm"> </div> <div id="post_rate_div_1135729"></div> </div> </dd> </dl> </div> <div id="post_1135334" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-144230.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=144230&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-144230.html" target="_blank" class="xi2">MorningTech</a><em id="author_1135334"> 发表于</em> <span class="xg1 xw0">2014-11-7 22:36:35</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1135334"> <div class="quote"><blockquote><font size="2"><font color="#999999">inkfly 发表于 2014-11-6 11:25</font> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&pid=1135257&ptid=264708" target="_blank"><img id="aimg_NHvr0" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font><br /> 什么时候用到这个频率自检功能？是上电时自检吗？</blockquote></div><br /> 当发现异常时，如明明安装了晶振片，但显示晶振失效，或速率大幅乱跳等。<br /> <br /> 出现异常时检查，建议步骤：看<探头与接口>界面，晶振片的频率与损耗显示情况，<br /> 1. 如果频率显示为负，损耗值过低（有短路？），还是需要爬上去拔掉 振荡包与探头法兰间的连线的。如果探头回路是短路的话，自检是也是通不过的。<br /> 2.如果频率显示为正，跳动比较大，损耗值过大。或干脆频率也显示为负，损耗值过大。<br /> <br /> 点击<自检>命令，确认振荡包到晶控仪是否正常。如果自检正常，则说明连接或安装是真的有问题了。<br /> <br /> 注1：频率显示为负值，且在频率范围内来回跳动，那是扫描状态，表示未锁定频率。几个来回仍锁定不住，则输出 <晶振失效>状态，并将一直扫描下去。这样，一旦外界恢复正常，晶控仪将自动锁定。<br /> 注2：目前设置中，为避免内部软件逻辑状态过于复杂，<自检>后需要再<复位>以恢复正常频率扫描，或关机再开。<br /> <br /> 目前，自检功能是人为去点击<自检>命令的。今后可以考虑上电自检。</td></tr></table> </div> <div id="comment_1135334" class="cm"> </div> <div id="post_rate_div_1135334"></div> </div> </dd> </dl> <script type="text/javascript" reload="1"> aimgcount[1135334] = ['NHvr0']; attachimggroup(1135334); </script> </div> <div id="post_1135257" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-118969.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=118969&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-118969.html" target="_blank" class="xi2">inkfly</a><em id="author_1135257"> 发表于</em> <span class="xg1 xw0">2014-11-6 11:25:42</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1135257"> 什么时候用到这个频率自检功能？是上电时自检吗？</td></tr></table> </div> <div id="comment_1135257" class="cm"> </div> <div id="post_rate_div_1135257"></div> </div> </dd> </dl> </div> <div id="post_1135256" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-118969.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=118969&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-118969.html" target="_blank" class="xi2">inkfly</a><em id="author_1135256"> 发表于</em> <span class="xg1 xw0">2014-11-6 11:23:31</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1135256"> 支持国产原创<img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /></td></tr></table> </div> <div id="comment_1135256" class="cm"> </div> <div id="post_rate_div_1135256"></div> </div> </dd> </dl> </div> </div> </div> </div> <script 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