Nelja tassi tuulekiiruseanummõõturi korral on tuulel alati ees ühe tassi õõnsus ja tuul puhub ka vastastopsi tagaküljele ja tuule tekitatud erinevate jõudude tõttu tekib pöördemoment tuulekiiruseanummõõturi teljel, põhjustades selle pöörlemist.
Good to know
Kõige elementaarsem tuulekiiruseanummõõtur koosneb koppade (poolkerakujuliste anumate) seeriast paigaldatuna horisontaalselt ja toetuna varda tippu ning pöörleb tuule käes.
With a four-cup anemometer, the wind always has the hollow of one cup presented to it, and is blowing on the back of the opposing cup. Because of this asymmetrical force, torque is generated on the anemometer's axis, causing it to spin.
Good to know
The most basic type of anemometer consists of a series of cups mounted at the end of arms that rotate in the wind.
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