国产一级黄片免费_无码不卡中文字幕aV_在线播放午夜无码毛片_国产一级AV免费观看在线_欧美大黑BBBBBBBBB香啊,亚洲国产精品成人综合_国产欧美精品一区二区三区_成人精品一区二区91毛片不卡_99久久精品无码一区二区毛片免费_一本色道久久综合精品免费 ,另类老妇性BBWBBW,四川少妇搡BBW搡BBBB,嫩BBB槡BBBB槡BBBB,四川少妇BBW搡BBBB槡BBBB,女BBBB槡BBBB槡BBBB ,亚洲第一精品精品无码久久_国产午夜激片Av毛片不卡_亚洲欧美日韩国模久久精品_欧美精品A一级区_亚洲精品久久久一区黄无码国产a一级无码毛片一区二区三区

+86-22-88238579 info@twonhao.com
Tianjin WenHao Company Limited
Professional XGPON/GPON/OTDR Factory

How Does OTDR Deal With Blind Spots In Actual Testing?

  • 120 Views
  • 2018-07-18
  • Tianjin Wenhao Technology and Development Co., Ltd.
A series of "blind spots" are often referred to as blind areas, resulting in saturation of the OTDR receiver caused by reflection of feature points such as active connectors and mechanical connectors.

The blind area in optical fiber is divided into event blind area and attenuation blind area: The reflection peak caused by the intervention of the active connector, from the starting point of the reflection peak to the length distance between the saturation peak of the receiver, is called the event blind area, and the reflection peak in the fiber is caused by the interventional active connector, from the starting point of the reflection peak is known as a attenuation blind zone. For OTDR, the smaller the blind area, the better. The blind area will increase with the increase of the width of the pulse widening, while increasing the pulse width increases the measurement length, but also increases the measurement blind area, so when testing the fiber, the measurement of the fiber and adjacent event points of the OTDR attachment should use a narrow pulse, while the wide pulse should be used to measure the distal end of the fiber.
How Does OTDR Deal With Blind Spots In Actual Testing?
保亭| 丰台区| 靖边县| 临城县| 呼伦贝尔市| 大冶市| 枣强县| 高密市| 富顺县| 茂名市| 香格里拉县| 南溪县| 揭东县| 恩平市| 黄骅市| 锡林浩特市| 石楼县| 资讯 | 孙吴县| 东丽区| 页游| 蒙自县| 肇州县| 正镶白旗| 定边县| 洛宁县| 昌邑市| 体育| 饶阳县| 连平县| 赤峰市| 淮安市| 六盘水市| 高州市| 汶川县| 成安县| 克拉玛依市| 芜湖市| 沙坪坝区| 赫章县| 四会市|