Nowadays, with the continuous acceleration of economic development and urbanization, the number of motor vehicles has increased rapidly, which has caused increasingly severe traffic problems: traffic congestion and even congestion, frequent traffic accidents, severe air and noise pollution, and the power of public transportation systems. Drop and so on.
The installation of traffic signal lights can effectively implement traffic control and management, and give full play to the traffic ability of existing roads. So do you know what requirements the brightness measurement of road traffic lights should meet?
The brightness measurement of road traffic signal lights should meet the following requirements:
1. It is an independent light-emitting unit when measuring, without the cover and shell;
2, the measurement interval should not be less than 4m;
3. The diameter of the sampling circular black spot on the light-emitting surface of the signal lamp when measuring is 20mm;
4. The sample is operated under additional voltage. After the luminescence of the sample becomes stable, 4 measuring points are uniformly selected to measure the brightness in all directions in the rule.
