能见度仪

1
visibility meter
... visibility marker，能见度目标物 visibility meter，能见度仪 visibility object，能见度目标物 ...
2
visiometer
... visible-infraredspin-scanradiometer可见光-红外旋转扫描辐射计 visiometer能见度仪 visionangle视角 ...
3
Visibility sensor
能见度仪

短语

1
介绍了一种红外散射能见度仪的原理和设计方法。
Aforward scatter infrared visibility meter and its design meth - od are introduced.
2
前向散射能见度仪测量前向散射光强度，确定大气的消光系数，进而获得大气的能见度值。
The intensity of forward-scattered light is measured by the forward-scattering visibility sensor, which determines the extinction coefficient of the air, then the visibility can be obtained.
3
针对不良能见度天气下的交通运输安全需求，设计了一台可用于水平及斜程能见度测量的激光雷达能见度仪。
Aiming at the safety requirement for the traffic and transportation under bad visibility weather, a lidar visibility meter is designed to measure the horizontal and slant visibility.

能见度仪
一种通过测量大气消光系数，按照经验公式得出大气中肉眼观测距离的仪器。能见度仪是测量大气能见距离的仪器。分为透视式和散射式两种。前者是通过大气透射率或者消光系数来确定能见距离。后者是通过测量一定体积空气中由气体分子，气溶胶粒子、雾滴等引起的散射光的强度来确定能见距离。

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