# Peter Ponder PID videos

**URL:** <https://forum.deltamotion.com/t/peter-ponder-pid-videos/404>\
**Category:** Motion System Design\
**Created:** [July 27, 2016, 6:24pm UTC](https://forum.deltamotion.com/t/peter-ponder-pid-videos/404 "2016-07-27T18:24:18Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Peter\_Nachtwey](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/p/f17d59/32.png) [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\
**Post date:** [July 27, 2016, 6:24pm UTC](https://forum.deltamotion.com/t/peter-ponder-pid-videos/404/1 "2016-07-27T18:24:18Z")

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The root locus is useless  
[youtu.be/uYhz3TuTkfM](https://youtu.be/uYhz3TuTkfM)  
Basic system identification  
[youtu.be/qzr6eL90Aok](https://youtu.be/qzr6eL90Aok)  
Advanced system identification  
[youtu.be/lermULNDz3M](https://youtu.be/lermULNDz3M)

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**Author:** ![rwatson](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/r/e19adc/32.png) [@rwatson](https://forum.deltamotion.com/u/rwatson)\
**Post date:** [August 16, 2016, 6:55pm UTC](https://forum.deltamotion.com/t/peter-ponder-pid-videos/404/2 "2016-08-16T18:55:35Z")

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These videos are great! I particularly liked the one about root locus. I don’t know why using symbolic techniques for pole placement isn’t the primary method taught in university - it just makes so much sense.

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**Author:** ![Peter\_Nachtwey](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/p/f17d59/32.png) [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\
**Post date:** [October 11, 2016, 3:16am UTC](https://forum.deltamotion.com/t/peter-ponder-pid-videos/404/3 "2016-10-11T03:16:27Z")

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I have added a video about Observers and why they are important, especially when controlling hydraulic actuators.  
[youtube.com/watch?v=7Gmrc-dj\_uc](https://www.youtube.com/watch?v=7Gmrc-dj_uc)  
I know this may be a little geeky. Even if you don’t understand the math is it good to watch because estimating the actual acceleration is very hard to do accurate. The video makes it clear that unless one has infinitely fine resolution it is difficult to accurately calculate the acceleration unless an observer is used.

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**Author:** ![Peter\_Nachtwey](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/p/f17d59/32.png) [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\
**Post date:** [July 26, 2017, 8:34pm UTC](https://forum.deltamotion.com/t/peter-ponder-pid-videos/404/4 "2017-07-26T20:34:38Z")

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I have added many more videos to my YouTube channel  
[youtube.com/user/pnachtwey](https://www.youtube.com/user/pnachtwey)

Peter