wyj860812 发表于 2007-5-31 13:25:00

光缆熔接损耗

光缆熔接点的损耗在OTDR上怎么看啊是反射损耗还是非反射啊他俩什么区别啊

hawkwan 发表于 2007-6-1 21:37:00

<p>熔接点是非反射事件,呈台阶状,评测台阶下降的高度既是熔接损耗。在OTDR上一般叫做插入损耗。当然插损的概念要大一些,发射事件也会有插损。反射事件是介质发生变化造成的,能量较强,所以在曲线上呈尖峰状。多学习会了解的。</p>

hh1978 发表于 2008-8-20 09:21:00

有更详细的文章吗?多谢!

hjj5376 发表于 2008-10-9 15:13:00

&nbsp;<div vshape="_x0000_s1026"><div class="O3" style="mso-line-spacing: &quot;100 20 0&quot;; mso-margin-left-alt: 367; mso-text-indent-alt: 367; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 211%; COLOR: #ccecff; FONT-FAMILY: &quot;Times New Roman&quot;; text-shadow: auto;"><span style="FONT-SIZE: 115%; LEFT: -7.34%; COLOR: #ffcc99; FONT-FAMILY: Webdings; POSITION: absolute; TOP: -0.11em; mso-special-format: bullet;">&Ecirc;</span></span><span style="FONT-SIZE: 38pt; COLOR: #ccecff; FONT-FAMILY: &quot;Times New Roman&quot;; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 幼圆; text-shadow: auto;"><b>2</b></span><span style="FONT-SIZE: 38pt; COLOR: #ccecff; FONT-FAMILY: 幼圆; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 幼圆; text-shadow: auto;"><b><font face="宋体, MS Song">)非反射事件 </font></b></span></div><div class="O" style="TEXT-ALIGN: justify; mso-line-spacing: &quot;100 20 0&quot;; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 32pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体;"><b><span style="WIDTH: 10.39%; mso-tab-count: 1;"><font face="宋体, MS Song"></font></span></b></span><span style="FONT-SIZE: 32pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体;"><b>光纤中的熔接头和微弯都会带来损耗,但不会引起反射。由于它们的反射较小,我们称之为非反射事件。 </b></span></div><div class="O3" style="mso-line-spacing: &quot;100 20 0&quot;; mso-margin-left-alt: 367; mso-text-indent-alt: 367; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 211%; COLOR: #ccecff; FONT-FAMILY: &quot;Times New Roman&quot;; text-shadow: auto;"><span style="FONT-SIZE: 115%; LEFT: -7.34%; COLOR: #ffcc99; FONT-FAMILY: Webdings; POSITION: absolute; TOP: -0.11em; mso-special-format: bullet;">&Ecirc;</span></span><span style="FONT-SIZE: 38pt; COLOR: #ccecff; FONT-FAMILY: 幼圆; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 幼圆; text-shadow: auto;"><b><font face="宋体, MS Song">(</font></b></span><span style="FONT-SIZE: 38pt; COLOR: #ccecff; FONT-FAMILY: &quot;Times New Roman&quot;; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 幼圆; text-shadow: auto;"><b>3</b></span><span style="FONT-SIZE: 38pt; COLOR: #ccecff; FONT-FAMILY: 幼圆; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 幼圆; text-shadow: auto;"><b><font face="宋体, MS Song">)反射事件 </font></b></span></div><div class="O" style="TEXT-ALIGN: justify; mso-line-spacing: &quot;100 20 0&quot;; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 32pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体;"><b><span style="WIDTH: 10.39%; mso-tab-count: 1;"><font face="宋体, MS Song"></font></span></b></span><span style="FONT-SIZE: 32pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体;"><b>活动连接器、机械接头和光纤中的断裂点都会引起损耗和反射,我们把这种反射幅度较大的事件称之为反射事件。</b></span><span style="FONT-SIZE: 32pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体;"><b>
                                </b></span></div><div class="O" style="mso-line-spacing: &quot;100 50 0&quot;; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"></div></div>

zhupeng 发表于 2008-10-23 09:54:00

来学习的

SHOUGANGXIAOFAN 发表于 2009-3-2 13:44:00

学习了。

xtgq888 发表于 2009-3-3 16:23:00

用自动测试!就很明白了.

doudoulove84 发表于 2010-1-9 19:50:00

<p>初来乍到,请多关照!</p>

luo0127 发表于 2010-1-10 20:32:00

在熔接这块虽然了解点,但还需要继续深入学习啊

wuwei2009 发表于 2010-1-14 17:27:00

多谢。学习。

qiulijun111 发表于 2010-4-20 14:45:00

我是做熔接的
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