Balance the motor with an oscilloscope to face everything in life. We must seek balance. This may sound like the whine of a new era, but if you don’t think it’s true, try to tolerate a washing machine with only one quilt in its rotation cycle, or drive for miles with unbalanced tires.
Without proper balance, any rotating object can quickly spin into pieces, and DIY power tools in matthiaswandel’s store are no exception. Recent upgrades to joiner have made the tool a bit noisy, so he is exploring machine vibration with this simple but clever setup. Matthias is of no use except a cheap speaker and an oscilloscope. He can describe the vibration characteristics of a small squirrel cage blower – he wisely chooses to start from a small point to verify his method, and then sneak into the potential dangerous joint. Many things can be learned from the complex waveforms returned by the sensor. The spectrum analyzer function of the oscilloscope greatly helps to analyze these waveforms. The following video shows the process of detecting various parts of the fan, distinguishing spectral peaks caused by electrical noise rather than vibration, and actually using settings to dynamically balance the fan.
We think this is another convenience store tip provided by [Mathias], and we will pay attention to the analysis of his participants. Want to do the same thing, but you don’t have an oscilloscope? No problem – you just need an earplug and courage.