Mini Air Cooling Fan shaking his head angle and flatness

Two important indicators of general "Mini Air Cooling Fan" shake test is: frequency swivel and twist angle. GB Requirements: 4≤ twist frequency ≦ 7, swivel angle ≥60 ° swivel so you can know the frequency is not the better, nor is it as small as possible, while the swivel angle is better. General brand landing "ios版雷竞技下载 " about shaking his head at an angle of 60 to 90 degrees, the pitch angle of 30 degrees; there are also some professional brand shaking his head angle up to 120 degrees, tilt angle of nearly 45 degrees. Shake control: the way around, shaking his head and has a plug-in electronic, mechanical stand fan / desk fan / Desk Stand Fan commonly used gearbox pluggable, fan page using switching control; remote stand fan / desk fan / desk stand. " ios版雷竞技下载 "synchronous motor electronic; pat down the pitch into one style and lock nut fixed;