Perancangan Prototype Alat Ultrasonic Anemometers Berbasis Arduino

Abstract

Wind is renewable energy, always available in nature and does not produce air pollution. The process of producing energy from wind energy sources is inseparable, it takes an efficient way to be more productive to produce energy. Windmill power generation technology that follows the wind direction is one of the things that can increase efficiency in producing energy. To increase efficiency in generating energy, then the design of a prototype arduino-based ultrasonic anemometer device that can measure wind speed and wind direction at the same time. So there is no need for moving components in the mechanical cup anemometers and additional device for reading wind direction. It is expected to provide a fast, accurate and ideal measurement. From the results that have been done, wind has the effect of reading when receiving ultrasonic wave signals. The arduino-based Ultrasonic Anemometers Prototype Design has a time resolution of 1 m/s wind speed of 2,527 µs at 25ºC and 0% relative humidity. The method of calculating wind speed has a maximum error of 12,6% at wind speeds below 5 m/s and 7,5% at wind speeds above 5 m/s. Ultrasonic Anemometers can determine wind direction with a maximum error of 9.2% 9.2% when the wind comes from each transducer and has a maximum error of 58.13% when the wind is between each transducer for 10 attempts and 8 different wind directions.