Introduction: The HY-WT tunnel ultrasonic wind speed and direction detector is specially designed and manufactured for online monitoring of wind speed and wind direction in the tunnel. The ultrasonic time difference method is used to install two ultrasonic probes on the two sides of the tunnel. When the internal airflow passes between the two ultrasonic probes, the ultrasonic waves pass the time difference of the round-trip of the transmitting beams to each other to obtain the wind speed and the wind direction value in the tunnel. Since the sampling area spans the entire tunnel, the detected wind speed has a true representativeness. Features: 1. Cast aluminum body, surface aging treatment, adapt to the harsh environment inside the tunnel 2. The sampling area spans the inner lane of the tunnel, which more realistically reflects the gas flow rate in the tunnel. 3. Adopt ultrasonic detection principle, not affected by ambient temperature 4. Non-contact detection, no moving parts inside, reducing the failure rate Technical Parameters: Measuring principle: Ultrasonic time difference method Installation method: Install on both sides of the tunnel Measuring range: Wind speed: -30 m / s ... +30 m / s Wind direction: positive and negative Measuring path: 5m...50m Measurement accuracy: ±0.1 m / sec Average time: 1 second Analog output: 2 channels of 4-20mA current output, maximum load impedance 500Ω Switching output: 2 passive relay outputs Digital interface: RS232, RS485 Communication Protocol: ModBus Supply voltage: 220VAC±10%, 50Hz/60Hz Ambient temperature: -40 to +65 ° C Protection level: IP66 Installation method: Install on both sides of the tunnel
Introduction: The HY-WT tunnel ultrasonic wind speed and direction detector is specially designed and manufactured for online monitoring of wind speed and wind direction in the tunnel. The ultrasonic time difference method is used to install two ultrasonic probes on the two sides of the tunnel. When the internal airflow passes between the two ultrasonic probes, the ultrasonic waves pass the time difference of the round-trip of the transmitting beams to each other to obtain the wind speed and the wind direction value in the tunnel. Since the sampling area spans the entire tunnel, the detected wind speed has a true representativeness.
