Tunnel Visibility Sensors

Tunnel Visibility Sensor Product Overview

Tunnel Visibility Sensor is a new generation of meteorological visibility monitoring equipment based on the aerosol front scattering principle, which is suitable for meteorological stations, remote automatic weather stations, airports, highways, airways, large ships and other transportation departments. It provides accurate weather visibility measurements to help you meet the challenges of a complex and changing environment.

 Tunnel Visibility Sensor Working Principle

- Forward Scattering Technology: Accurately obtains the scattered light intensity of suspended particles in the sampling area by measuring the forward scattered light of less than 90 degrees.

- Cross-over design: The optical paths of the transmitter and receiver are crossed to form a precise sampling area, realizing high-precision measurement.

 Tunnel visibility sensor technical parameters

 Tunnel visibility sensor structure composition

- Transmitter: Built-in laser tube, transmits laser signals outward at a fixed angle.

- Receiver: Built-in photosensitive receiver device, used to receive scattered signals.

- Microprocessor control unit: samples and calculates the current visibility value, and transmits it to the data acquisition terminal through RS-485 interface.

 Tunnel visibility sensor product features

- Integrated structure design: compact and small, easy to install and carry.

- Double scattering receiver structure: effectively reduce solar and stray light interference.

- Special coating treatment: anti-dust, anti-mold, reduce the chance of environmental pollution.

- High quality materials: rigid aluminum and 316 stainless steel, anodized passivation treatment, corrosion resistance.

- Low power consumption design: less than 1W, adapt to a variety of power supply modes.

- Long-term operation stability: built-in watchdog circuit, stable and reliable work.

 Tunnel visibility sensor reliability and maintenance

- Mean Time Between Failure (MTBF): more than 18,000 hours

- Clean optical lens: 3 months, or depending on the use of the environment

 Installation of tunnel visibility sensor Note

1. Installation location: representative monitoring points should be selected to avoid shading and interference.

2. Power supply access: Make sure the power supply voltage is stable and meets the requirement of DC12V.

3. Communication interface: Connect the RS485 communication cable correctly and follow the standard MODBUS protocol.

4. Environmental Maintenance: Clean the optical lens regularly to avoid accumulation of dust and dirt.

5. Regular inspection: check the working status of the sensor and measurement accuracy to ensure data accuracy.

 Tunnel visibility sensor value embodiment

Tunnel visibility sensor provides you with the following values:

- Ensure traffic safety: real-time monitoring of tunnel visibility, providing a basis for decision-making by the transportation department.

- Improve work efficiency: automatic data acquisition and transmission, reduce the burden of labor.

- Strong adaptability: applicable to a variety of harsh environments, stable and reliable.

 Visibility Sensor Application Scenarios

Visibility sensor is a device used to measure the visibility of the atmosphere, through the measurement of light scattering and absorption characteristics to determine the concentration of particles in the atmosphere and visibility. Its application scenarios are quite extensive, covering a variety of fields such as meteorology, transportation, environmental monitoring, etc. The following is a description of specific application scenarios:

1. Meteorological Observation

   - Real-time monitoring of atmospheric visibility: visibility sensor is one of the important equipments in meteorological observation station, which can monitor atmospheric visibility in real time and provide accurate data for weather forecasting.

   - Judgment of weather phenomena: By measuring the scattered light and precipitation of the target, the visibility sensor is able to judge the current weather phenomena, such as fog, haze, rain, snow, etc., providing an important basis for weather forecasting.

2. Transportation safety

   - Detecting the visibility of transportation: visibility sensors can be used to detect the visibility of highways, railroads, waterways and other means of transportation to ensure traffic safety. In fog, haze and other low visibility weather conditions, visibility sensors can provide real-time visibility data, providing an important reference for traffic management and scheduling.

   - Monitoring the visibility of transportation facilities: visibility sensors can also be used to monitor the visibility of transportation facilities such as bridges and tunnels to ensure the normal operation and safe use of these facilities under adverse weather conditions.

3. Flight safety

   - Detecting the visibility of airport runways: Visibility sensors are one of the most important devices for flight safety. It can be used to detect the sight range of airport runways to ensure the safety of aircraft during takeoff and landing. In low visibility weather conditions, the visibility sensor can provide real-time runway visibility data, providing important reference for pilots.

4. Environmental monitoring

   - Detecting air quality: visibility sensors can also be used in the meteorological field to detect the concentration of atmospheric pollutants, such as PM2.5, ozone, etc., to help people understand the air quality situation, and provide data support for environmental protection and governance.

5. Other application scenarios

   - Fog detection network: visibility sensors play an important role in fog detection network, which can monitor the fog situation in real time and provide early warning information for relevant departments.

   - Offshore drilling platforms: In offshore drilling platforms and other environments, visibility sensors can monitor weather changes in real time to ensure operational safety.

   - Border security: visibility sensors can also be used for border security monitoring, through real-time monitoring of visibility, to provide important support for border patrol and monitoring.

In summary, visibility sensors have a wide range of applications in meteorological observation, transportation safety, flight safety, environmental monitoring and many other fields. With the continuous progress of technology and application expansion, the performance of visibility sensors will continue to improve, bringing more convenience and protection to people's production and life. Choose tunnel visibility sensors for your traffic safety! If you have any questions, please feel free to contact us, we will be happy to serve you.

visibility sensors data sheet 

NBL-W-VS-Visibility-Sensor-Instruction-Manual.pdf