Characteristics and functions of tunnel visibility measuring instrument

Tunnel visibility meter is a device used to measure the visibility inside a tunnel. It is mainly used to monitor and evaluate the visibility conditions inside the tunnel to ensure the safety of vehicles and pedestrians traveling in the tunnel.

Tunnel visibility meters usually have the following features and functions:

1. Measurement principle: The tunnel visibility meter uses sensors and measurement technology to detect the visibility level inside the tunnel. It can determine the value of visibility by measuring the scattering and reflection of light.

2. Real-time monitoring: The instrument can monitor visibility data in real time and display it to the operator in the form of digital display or graphical interface. In this way, the tunnel management personnel can timely understand the visibility situation in the tunnel and take necessary measures to ensure traffic safety.

3. High-precision measurement: The tunnel visibility meter has high-precision measurement capabilities and can accurately measure the visibility level in the tunnel. It can detect lower visibility values such as smog, haze and other adverse weather conditions.

4.Alarm function: When the visibility in the tunnel is lower than the set safety threshold, the tunnel visibility meter can issue an alarm signal to remind the operator to pay attention to safety, and take corresponding measures, such as speed limit, increase lighting, etc.

5. Data recording and analysis: The instrument usually has data recording and storage functions, which can record visibility data and generate reports. These data can be used to analyze and evaluate the changing trend of visibility in the tunnel, and provide reference for tunnel management and improvement.

The use of tunnel visibility meter is very important for tunnel safety and traffic management. It can help to monitor and warn the situation of abnormal visibility in the tunnel, and remind drivers and managers to take necessary measures to ensure the safe passage of vehicles and pedestrians in the tunnel.