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Measuring motor vibrations

Question asked by re4mat0r on Feb 7, 2017
Latest reply on Mar 16, 2017 by John.Tuazon

Hi. I am measuring BLDC motor vibrations with ADXL345. I use 2 propellers, one perfectly balanced and other bad, which vibrates a lot. The problem is I get similar results from accelerometer with both props. I tried ODRs from 200 to 3200 and results look similar with both props (1000-5000 RPM). I get real time data from MCU which reads data from accelerometer, then my program draws a real time chart, so I visually check the results while trying different things.

 

What can be the problem here? I want to be able to detect vibrations on the motor.

 

Best regards,

Roman

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