The development of a new-type atmosphere visibility meter

A new type of direct transmission visibility measuring device is developed. The device can obtain the visibility by measuring the atmosphere transmittance ratio of laser beam in sampling space. The measuring principle and the design scheme of the device are described. The measuring comparison experiments of this device and the reference transmittance meter are carried out. The experiment results verify the correction of test theory and technique scheme. The relative measurement error is under 20% within the test range of 10 km.