【實用工具app】Strobe light tachometer (RPM meter)|最夯免費app-綠色工廠好玩App

The price will go up on 15.06.2015. Hurry up and take advantage of the old price!!!Other apps will soon go up in price too, but you may find some of them handy.When the flicker frequency of light coincides with the speed of any object, such as a fan, the rotating fan may appear to be stationary. Changing the frequency of the flicker of light may help detect the rotation speed.You may easily use the flicker frequency control buttons to quickly assign the flicker frequency with a value within the range of 0.01Hz to 100Hz (from 1 to 6000 RPM) with an accuracy of 0.01Hz (1 RPM). If the speed is more than 6000 RPM (e.g. 11000 RPM), you may still determine the speed by first making measurements with a lower flicker frequency and then making a simple calculation (as explained in the app). To change the frequency, you should simply press and hold the button. The flicker frequency can be displayed either in Hz or RPM.The image you see will be sharper in lower external light.After determining the speed of rotation, you can save your readings by taking a photo with the result of the measurement written on it.