![]() Think about the features that you actually need. When buying an anemometer, you’ll find quite a range of prices. What is your budget? An obvious one, but let’s not forget about it. Where will you be using it? Does it need to be portable? Some anemometers will be handheld & easily portable, while others… might still be portable-ish, but are more intended to be mounted on a pole or a vehicle. No need to go into the details here, but basically, if you’re looking for something as accurate as possible, go for 3 cups. If you read up on Wikipedia (no need, I’ve done it for you), you’ll learn that the 3-cup anemometer was specifically designed for accuracy. Let’s think about some of the factors to consider.įirstly, how many cups does it have? You’ll find anemometers with 2, 3, or 4 cups. What Should I Consider When Buying An Anemometer? Three cup anemometers are an accepted industry standard for a lot of wind-based studies. ![]() Both by hobbyists such as myself, and by professionals needing accurate wind measurements. Invented in the 19th century, they are still widely used today. The best anemometers will be mounted to reduce any blockages to the wind. The faster the wind speed, the higher the number of rotations will be. They measuring wind by counting the number of turns or rotations as the air flows and are known for being particularly accurate. An Anemometer is basically a device used to measure wind speed and is commonly used in meteorology.Ī cup anemometer, therefore, is simply one of the types of anemometers. wind speed: 0 - 40m/s (78 N) - accuracy 0.1m/s (0.‘Anemometer’ comes from the Greek word anemos, which means wind.wireless data sending via Bluetooth 4.0 - distance 50m.battery life without brightness: 30 days at 1Hz, 3 days at 8Hz, up to 1 year on standby.recharge by integrated solar panel 35 x 23mm.dimensions: diameter 70mm x height 57mm.Ideal for small boats that need to dismast regularly or do not have an on-board battery, this windvane anemometer opens new paths for all mobile devices. Some of the sensors are not yet used in applications, but this suggests that there are many uses for them. 1 gyroscope and 1 accelerometer to measure the axial displacement of the boat.4 ultrasonic sensors for wind measurement.Sensors for future developmentsĭespite its small size (135g, 70mm diameter), this windvane integrates many sensors: from 1 to 8 pieces of information per second). To limit consumption (and increase autonomy), it is possible to limit the data refresh rate (from 1 to 8 Hz, i.e. The Anemotracker manufacturer's application (available on iOS or Android) allows to establish the Bluetooth connection and to make the main settings (real wind/apparent wind, information refresh rate, wind value logs, data damping, heading offset settings if necessary). It communicates with the mobile in Bluetooth Low Energy which offers an operating distance of more than 50 m, which is more than enough on a pleasure boat and also works inside the cabin.įor reading wind information, in addition to the proprietary application, there are already 4 applications working with the product : Vaavud, iRegatta, eStela, SailRacer and soon Weather4D 2.0. Installed at the head of the mast (it has a standard 16 mm thread), the windvane is completely wireless. Weather vane 30 days of autonomyĮquipped with a solar panel and a battery, this weather vane has an autonomy of 30 days even in the absence of light. Indeed iTabNav markets an autonomous wind vane anemometer that communicates with mobiles via Bluetooth. To receive wind speed and direction information, we need a navigation system that sends the information back via a transmitter (Bluetooth or wifi). All it needs are sensors to indicate the wind strength and direction so that it can totally replace a navigation system on board a boat. With its Internet access, it displays the weather and can also do routing. It displays the cartography with often very affordable software in price and use. This easily transportable screen has a built-in GPS. Sailing with a tablet is now a thing of the past.
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