arcticsilo

3 ms·

1. 1.▲
   Why did my Vitamix shut off? Understanding motor heating (with data)(joyofblending.com)

   2 points by arcticsilo 10y ago|0 comments
2. 2.▲
   by arcticsilo 11y ago

   There's blade-water friction as well as water-water friction. The link you provided does not quantify their relative contributions. [edit: Actually, I'm not even sure how much blade-water friction there is, due to the boundary lay
3. 3.▲
   by arcticsilo 12y ago

   That's a great idea! Did you find a good app? If so I'd like to hear. I just looked at a few free ones, and they didn't have enough control to be able to read off frequencies in the relevant range very well.
4. 4.▲
   by arcticsilo 12y ago

   (Blog author here) If you check out the spectrograms you'll see that there are a lot of different frequencies in the audio. I wasn't sure if the most powerful frequency would be the true rotation rate, so that's why I wanted
5. 5.▲
   by arcticsilo 12y ago

   I’m not sure if you saw it, but the last figure in the post is a spectrogram of the motor under load. I'd say the load results were the most interesting because they revealed differences in the speed control of the different models.
6. 6.▲
   by arcticsilo 12y ago

   I'm the blog author. I'm glad you guys are getting a kick out of my write-up! I'll answer a few of the questions/comments here, and I'm happy to answer any other questions.