The TH-N50 visibility sensor is a device used to measure atmospheric visibility, which is designed based on the principle of aerosol forward scattering and measures atmospheric visibility (meteorological optical distance) by measuring the total number of discrete light particles in the air, such as smoke, dust, haze, fog, rainfall, and snowfall. Such sensors typically include major components such as an optical transmitter, an optical receiver, and a microprocessor controller.
Visibility sensors have a variety of advantages, such as rugged and simple construction, good working stability, high reliability, low energy consumption, and easy use and maintenance. In addition, the optical lens of the instrument has an automatic heating control module, which can work normally even in extreme environments such as severe cold.
In terms of application fields, visibility sensors are widely used in meteorological observation, traffic monitoring, environmental monitoring and other fields. For example, in safe driving on the road, visibility is reduced in foggy days, and the driver's visual distance is greatly shortened, which can easily lead to traffic accidents. Visibility sensors can be installed on the side of the road to accurately monitor road conditions and thus help improve driving safety. At the same time, the equipment can also be used in lighthouses, resorts, and even on deck or other offshore platforms.
When installing, it is necessary to ensure that the visibility sensor is installed approximately 2 meters from the ground and that there should be no other objects underneath to interfere with the test. The ideal installation site should be at least 100 meters away from large buildings or other facilities that generate heat and obstruct rainfall, while also avoiding the influence of shade. The site should be free of obstructions, reflective surfaces, and obvious sources of contamination that interfere with optical measurements.
Overall, visibility sensors are an important meteorological monitoring device that can provide critical information for atmospheric environment research and traffic safety. For more information on visibility sensors, it is advisable to consult the literature or consult a meteorological expert.