Visibility sensor: Unlocking Precision in Atmospheric Visibility Measurement and Beyond

Visibility sensor is mainly used to provide information about Meteorological Optical Range (MOR) in fog and snow conditions, and is widely applied in fields such as roads, oceans, air, and wind energy.

It consists of a transmitter, a receiver, and a CPU. The transmitter emits a conical light twice per second. The light scatters among particles in the air, and the receiver detects the amount of light scattering. Subsequently, the processor calculates the visibility using existing formulas and also calculates the average visibility over one minute. The Sensor Equivalent Visibility (SEV) range it detects can represent the maximum distance visible to the human eye under specific atmospheric conditions, providing a standardized determination method when visibility is reduced due to factors such as fog and snow.

The normal visibility range is between 30 meters and 16 kilometers, and the atmospheric visibility is measured by estimating the amount of light scattered by particles in the air such as dust, smoke, and fog.

In the automotive industry, it ensures the safety of vehicles and drivers, monitors the environment, detects situations such as fog and smoke, and alerts the driver. In industrial environments, it is used to monitor hazardous areas and warn workers about dangerous gases or particles. In medical environments, it monitors air quality. It is also popular in households as it can detect potential hazards such as smoke and carbon monoxide.

A series of Visibility sensors launched by the Fengtu brand each have their own characteristics. For example, the FT-BN6 portable detector, with its unique structure and optical forward scattering detection method, combined with accurate air sampling and detection channels, can detect in both mobile scenarios and narrow spaces. The 7-inch touch display screen can intuitively present data curves, and the wireless data transmission module (optional) and mobile phone APP display function further expand its application range. It has a built-in lithium battery and a heating module, adapting to a variety of environments.

The FT-NJD10 monitor operates through the coordinated work of a light transmitter, a receiver, and a microprocessor controller. It detects the scattering of infrared pulsed light by aerosol particles, and is equipped with a six-element integrated sensor for temperature, humidity, etc. Among them, the wind speed, wind direction, and piezoelectric rain gauge sensors are ingeniously designed. GPRS wireless transmission is standard, and solar and mains power supply can be optionally chosen. The FT-NJD50 is similar to the FT-NJD10 and has equally excellent performance.

The FT-N30 sensor calculates visibility by measuring the extinction coefficient using the forward scattering method. The aluminum shell is strong and durable. The downward-facing transmitting and receiving lenses reduce interference. The identification of weather phenomena is accurate. The lightning protection design, wide-voltage power supply, and low power consumption ensure stable outdoor operation.

The FT-WJN4 drone-specific detector is lightweight, compact, and has strong anti-interference ability. It performs well in high-altitude and low-temperature environments. Bluetooth output can be optionally equipped according to requirements, meeting the needs of drones and related scenarios.