To Measure Wind Speed using the theory of One-dimensional Ultrasonic Anemometer
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Ultrasonic anemometer (UA) is a core application in natural environment measurement. As well known, mechanical anemometer works well in good weather but it is not suitable to be applied in bad environment such as polar region and upper air. On the other hand, ultrasonic anemometer works well in most situations. Moreover, ultrasonic anemometer has wider detectable wind speed range. It can be said that ultrasonic anemometer is a more advanced instrument to measure wind velocity. In this paper, the theory of ultrasonic anemometer is first discussed. Using the theory, a test bed is then designed and constructed to measure one-dimensional wind speed. Active Butterworth filter is introduced into the circuit in order to increase the stability and accuracy. Furthermore, we test the one-dimensional ultrasonic anemometer and compare the measured wind speed with theoretical wind speed measured by a thermal anemometer device. Error is also discussed and improvement has also made during the experiment.
Place, publisher, year, edition, pages
2011. , 40 p.
Ultrasonic anemometer, One-dimensional, Wind speed, Butterworth filter
IdentifiersURN: urn:nbn:se:hig:diva-9602Archive number: TEX110608OAI: oai:DiVA.org:hig-9602DiVA: diva2:425655
Subject / course
Electronics – bachelor’s programme (in eng)