An inexpensive anemometer using Arduino board

Abstract

In all studies involving wind speed, such as meteorology, wind turbines and agriculture accurate speed information for decision making is required. There are several types of anemometers, with medium and high costs, such as cup, hot wire and pitot tubes, the hot wire being more sensitive and expensive than others. The device developed in this work is the cup anemometer, that is easy to build. The great advantage of this device is the low cost, with an approximate value of US$ 50.00, using simple materials that are easy to find in commercial stores. The Reed Switch sensor is also another advantage as it does not require a sophisticated programming, as well as the open platform Arduino. The use of theoretical aerodynamic drag coefficients and the presented calculations resulted in values very close to a commercial anemometer. The coefficient of determination between the cup Anemometer and the standard sensor of Meteorological Research Institute IPMet/Brazil is R 2 =0.9999, indicating strong correlation between the instruments. As the reference anemometer (IPMet) has high embedded technology and the prototype is low cost, we conclude that the project has an attractive cost benefit for possible development and production, reaching the objective of this work.

Rancang Bangun Sensor Kecepatan Angin Berbasis Arduino untuk Terowongan Angin Low Subsonic

“…Anemometer cup terdiri dari beberapa cup yang dipasang tetap pada sumbu pusat. jenis anemometer lainnya antara lain: hot wire yang mengukur perubahan temperatur dari kawat panas elektrik yang dilewati oleh angin, pitot probes yang menggunakan prinsip Bernoulli dan anemometer propeler yang menggunakan propeler untuk mengukur kecepatan angin [8]. Pembuatan alat pengukur kecepatan angin dapat memanfaatkan teknologi mikrokontroler.…”

“…Alat pengukur kecepatan angin atau anemometer berbasis mikrokontroler Arduino sudah banyak dibuat dan dikembangkan dalam beberapa penelitian sebelumnya [1,4,8,9,10,11]. Namun anemometer yang dibuat lebih banyak berjenis anemometer cup yang mengadopsi prinsip pengukuran dengan memanfaatkan hubungan antara kecepatan sudut dengan kecepatan linier memanfaatkan sensor optocoupler, sehingga penggunaannya terbatas untuk keperluan tertentu.…”

A review of real time smart systems developed at University of Nis

“…There are a large number of modular systems for measuring and acquiring atmospheric parameters on the market, but there are few such comprehensive systems that combine all modules for measuring/observing both microclimatic and atmospheric parameters and that such a system is also mobile. For example, it can find a system that measures only one parameter, wind speed [3]. That anemometer is a part of the meteorological station project.…”