An anemometer measures the wind speed. It uses tiny cups that spin in a circle and the faster the cups spin, the strong the wind. Weather vanes are widely used as decorative pieces too.

Today, designs include mechanical (vane, cup, propeller, turbine) units. They also include thermal, ultrasonic, pitot and laser-doppler types. Figure 1: Combined wind speed and direction detector ...

The new wind chill uses the wind speed at 5 feet, the average height of the human face instead of using anemometer wind speeds at 33 feet high. This newer formula is based on a human face ...

The Ecowitt HP2551 Wi-Fi weather station has the same features as the previous station, but instead of the ultrasonic anemometer, it uses the good old-fashioned wind cups and wind vane. This station ...

This provides a meaningful indication of the wind speed. A cup anemometer is the most common type of anemometer. It consists of three or four cups that are installed on a horizontal rod. When the wind ...

more accurate than the traditional cup and vane. A sonic anemometer’s accuracy suffers as wind speed increases, but most people will never need to worry about it. That’s because this type of ...

An anemometer — an instrument that typically has three cups that spin around a central axis when the wind blows — at the island's weather station recorded the 3-to-5-second gust. It took over ...