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$('sharenumber').innerHTML + ' 人分享'"><i><img 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=246353" 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=246353&hash=e654aa67" 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=246353&hash=e654aa67" 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-124232.html" target="_blank" class="xi2"><img src="http://www.oecr.com/uc_server/avatar.php?uid=124232&size=small" /></a> <span class="tit_author"> <a href="http://club.oecr.com/space-uid-124232.html">wl6879</a> </span> </div> <div class="date"><span>发布时间:</span> 2011-9-25 10:27</div> <div class="album_info"> <h3>正文摘要: </h3> <p> 本帖最后由 wl6879 于 2011-9-25 14:01 编辑 最近的一个项目,需要检测一个4μs,最小0.001lux的光信号,请教大家应该用什么光电检测器件,据说硅光电池测试10K以内较好,那么应该采用光电二极管吗?或是需要光电倍增管 ...</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_933405" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-124232.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=124232&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-124232.html" target="_blank" class="xi2">wl6879</a><em id="author_933405"> 发表于</em> <span class="xg1 xw0">2011-9-27 07:58:06</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_933405"> 谢谢回复,联系过滨松,那边的技术支持说,选择PIN型光电二极管就行了,只要选择上升时间在ns级的就行,还在查资料.谢谢</td></tr></table> </div> <div id="comment_933405" class="cm"> </div> <div id="post_rate_div_933405"></div> </div> </dd> </dl> </div> <div id="post_933306" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-132415.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=132415&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-132415.html" target="_blank" class="xi2">Cluck</a><em id="author_933306"> 发表于</em> <span class="xg1 xw0">2011-9-26 20:49:24</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_933306"> 对于强光，光电二极管应该满足你的需求，对于弱光，pmt和apd应该是个比较好的选择，很少有探测器的线性区 能覆盖 0.001-10000 lux，可行的方法是在敏感探测器前加上合适的衰减片，除此之外，要测4us的信号，需要探测器具有MHz的带宽，相关的信息 一些公司的网站如hamamatsu, newport, thorlabs ...都应有相应的信息。</td></tr></table> </div> <div id="comment_933306" class="cm"> </div> <div id="post_rate_div_933306"></div> </div> </dd> </dl> </div> <div id="post_932735" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-124232.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=124232&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-124232.html" target="_blank" class="xi2">wl6879</a><em id="author_932735"> 发表于</em> <span class="xg1 xw0">2011-9-25 10:38:26</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_932735"> 看资料说光敏二极管不能进行较为精密的测量。光敏二极管对光强的线性响应只在一定范围里（大概在0Lx到1500Lx），而且噪声略大。我要测试的最大光光强超过10000lux,查过滨松硅光二极管资料未找到测量频率的参数?请大家赐教!</td></tr></table> </div> <div id="comment_932735" class="cm"> </div> <div id="post_rate_div_932735"></div> </div> </dd> </dl> </div> </div> </div> </div> <script type="text/javascript"> new lazyload(); </script> <div class="wp mtn"> <!--[diy=diy3]--><div id="diy3" class="area"></div><!--[/diy]--> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a 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