A wind speed sensor shall be installed at the wind measurement station of the return wind tunnel, the one wing return airline and the total return air lane. The wind speed sensor shall be set at a location within 10m before and after the roadway without branching wind flow, no turning, no obstacles, no change in section, and accurate calculation of air volume. When the wind speed is less than or exceeds the value specified in the “Safety Regulations for Coal Mines”, an audible and visual alarm signal shall be issued.
How to hang the wind speed sensor in the coal mine roadway
Wind Sensor 