The Root Locus Method - Introduction
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- เผยแพร่เมื่อ 1 ก.พ. 2013
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The Root Locus method is a fantastic way of visualizing how the poles of a system move through the S-plane when a single system parameter is varied from 0 to infinity. I show how to interpret the locations of poles in the S-plane, and how they are tied back to system requirements.
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I never thought I'd see the day when someone could produce a youtube tutorial video which progresses in a logical way, makes sense throughout, doesn't have a highly irritating voice, uses a decent microphone and doesn't constantly fumble with it, stays on topic and has not just legible but actually impressively neat writing..
Thankyou so much, yours are the best tutorial videos I've seen.
Please consider giving some lessons to Kahn Academy.
can't agree more !
You are very detailed and thorough. Keep it up!!
well it take a lot of effort to achive that.
I've learned more of the basis of root locus in this video than in my whole course in the university.
NeroSkywalker which uni? xD
National university of singapore
Could it be that u did not listen during the courses? :d
Yeah probably didn't because his professor couldn't explain for shit like mine or didn't do any examples
Same here
I am a fifth year Aeronautical engineering student, currently using root locus to design aircraft flight control systems. This fifteen minute video is a more complete, effective and absorbable explanation than I have been given throughout my degree.
Currently studying Electrical Engineering, I have to pass the final exam of Automatic Control, this videos were much more helpful than the entire course
Hello, I briefly cover that in my video called Stability of Closed Loop Control Systems starting at around 6 minutes. The even faster answer though is that the time response of a pole is e^st, where s is the location of the pole in the s-domain. If s is negative (left half plane) then as time get's larger e^st gets smaller (stable). If s is positive, then e^st gets larger as time increases. No matter how many poles you have, it only takes 1 unstable pole to drive the system to infinity.
Pls make a video on designing controllers (PI or PID- is it possible?) for non minimum phase systems.
One of THE best videos I've ever seen on Control Systems. I learnt far more from your video than my control systems course at my university. Amazing explanation with wonderful insights! Hats off to you for producing such great work!
you're my hero Brian. well explained and super easy to understand. thank you
Thanks Brian. After 12 years in Control Engineering, This is the first time I have this level of understanding, which you provide.
I am subscribed to you forever.. A lecture have never been so clear..
This is literally the best explanation i have EVER seen in my life. Very clear, the speed is perfect and answers all important questions. Instant sub.
Man your explanation was extraordinary. I’ve learned so much here than anywhere else. It helps me so much. Thank you🙂🙏
amazing is the way you explained it!!! I read about root locus 100 times but never understood the logic behind it... now it makes sense :)
I have no words.. thumbs up from an undergrad of electrical and computer engineering! The intuition you give on this subject is amazing and really helpful . Keep the videos coming !!
my uni has done an awful job at online classes, these series of yours are a life saver! so wonderfully explained!
Hi Brian, thank you for the lectures, I really appreciate your job.
I'd like know if it is possible you make a PDF file of your video lectures allowing us check the notes later.
i got tears on my eyes when i watched your explanation, it is the greatest lesson i have heard in entire my life even though i am in a university with among of useless lecturers , thank you so much
i must post this, i just came back from my exam "control systems" today. during my preparations i used all your videos about the root locus and the nyquist. I must say, thank you very very much Brain, because of you i managed to get the proper insight i needed. your techniek is awesome, good animated and keeps the interest locked on target! thanks many times bro
This is a REALLY good explanation of this. I came for later R.Locus stuff but I decided to watch this intro video (so I understood 99% of it prior to watching). Your explanations are very thorough but concise. I have a friend taking Control Systems next term and I'm going to recommend your videos!
wow, learnt more in this tutorial than i have all semester! love how you link everything together! cheers!
Thank you Brian for these videos. I am feeling like I am reborn after watching this. 10 mins of your video has taught me more than what 6 months of studies in my university have.
It's interesting to see just how much people appreciate good quality videos. Nearly a million views for the nerdiest content on TH-cam. Congrats and thank you for your work!
You are literally the GOAT. You broke down a concept and explained it so well with amazing visualizations. This video deserves an award!
Great Video Brian! You're a huge help to all of us struggling with control systems (aka all of us) :)
Your are a talented instructor!! Excellent job on these tutorials --they move quickly, they're thorough, and your explanations are clear and presented in a very easy-to-understand fashion. Kudos and thank you.
I am using this to study for a final right now, and I am so mad I didn't discover this earlier. This would have cleared up an entire semester's worth of confusion. Thanks for the explanation Brian, this is really well done.
man,you explained not just the technique ,but also the right questions that should go through ones mind while doing this...amazing!!!
Thank you so much you I just watched all of your lectures in one sitting and it literally just clicked. Your the man, keep it up!
You helped me understand the purpose of a root locus in 5 minutes better than my prof did in two lectures. Thank you.
You are awesome! Really great examples, practical applications, the graphs help a visual learner such as myself, and you draw awesome pictures and comics! Keep up the good work! I am so excited about control theory!
The way you have explained the concept with very illustrative examples is fantastic. You are doing a great service to the engineering community by this effort. Please keep it up. Thank you.
Absolutely fabulous! I love the practical application. Very helpful You taught me more in 13 minutes than I learned in 4 hours of lecture.
I met an old coworker of yours! She heard I was doing controls and immediately recommended your videos; I smiled and said, yes, I've watched every single one.
If I taught the class, the lectures would just be practice problems, and the homework would be to watch your lectures. 😂
Also, at about 7:29, I thought the imaginary portion was the damped frequency, not the natural; I thought the requirement forms a circle. Anyone able to help me understand?
brian you are awesome. like your methodology.
Great tutorial! Not that many tutorials of this quality discussing engineering subjects. Keep up the good work!
Your tutorials are amazing. You've given a gift to humanity.
Really appreciate your videos! You made me understand the whole control system thingy in such a short time. I tried to study myself but it took me days to understand the basic. You are awesome!!!
I'm honestly shocked how well you've explained this. Thank you so much!
THANK YOU SO VERY MUCH DR. BRIAN!! In a little over 10 minutes, you managed to teach a topic that I couldnt understand in 2 hours at class. You are extremely awesome for uploading these. We are eternally grateful! Liked and Subscribed! Its also amazing how you linked this to a real world engineering problem so well. It reminds one that engineering is not just numbers and maths but directly mirrors what goes on in reality. (btw, the "we messed up" cartoon was a brilliant idea!)
love it when you find a video that gives more than you expected! thanks a lot bro and hope the book becomes a bestseller :D
These videos tie all my lectures together. Amazing
This is awesome! I finally understand what my teacher has been trying to teach for the past few weeks
I am a fan of your channel now! Really informative and to the point vidoes with good notes and illustrations. Feeling lucky to realize some concepts :)
Not everyone got the skills to teach and nail it right there, I feel like I can obtain a degree just attending TH-cam videos, your videos are one of the reasons. Keep up the good work .
If only 1/10 of the teachers had such a huge enthusiasm to make the students got the curicullum then people would love to go to school.
Good teacher equals knowledge + fedback enthusiastic repetition till the understood lecture equals the determined level. :)
Well done Brian!
Very well put together... I'm about to have to develop the root locus for a project I have in my controls class and this is so much better of an explanation in ~13 minutes than my professor has given in 3 lectures.
Woo.
Will continue watching the others -- thank you for posting this. xD
Finally, I understand it, I have been trying to understand it for 2 months, thanks a lot for this amazing video!
This is such a great video oh my god. Our teacher didn't even tell us what k is supposed to be. We just solve problems mindlessly. But you helped me to understand the meaning and the real use of the root locus. It was so intuitive that something just clicked in my brain. Also along the way, your explanation of the s plane helped me to fill in some gaps in understanding. The video was very engaging throughout. Thank you so so much!!!
Sir thank you for the concept and elaboration, you made me appreciate Root Locus more.
Btw, the panic stick-man? GENIUS!
Good man Brian! You're saving my degree one video at a time!
Sir, you don't know how helpful these videos are!!!
Thank you :)
Amazing explanation, i am reviewing all the content i've learn in these university years, because this is my last semester, thanks for the good work.
TH-cam University prevails again. I was not entirely grasping RL from my professor and the textbook. Just kind of head down and mathing into the unknown. Your video placed a ton of perspective into my study. Thank you Brian Douglas 🍻
I love you so much for this video right now, I had totally forgotten about this concept because I hadn't developed an intuition for it. Now I believe I can actually use it for something else than a passing grade in an exam. Thanks!
the amount of planning that must go into this ...so good ...thank you so much
This is a gold mine for any control engineer who is still in the learning phase or even for those who is just revising man
Great teaching. You really help me understand control much better!
This is a skilled explanation on the subject and thus super helpful. Thank you!
man i really like your examples and the way you explain things !!great job
You're the man Douglas! Gotta love them control vidz you got here!!
this could replace almost any control theory course in engineering schools!! Great work
It's wierd... I've been attending 3 lectures on system's theory and control theory during my university studies several years ago and I have the impression that the first 5 minutes of your video tought me a lot more about one of the most useful methods frequently used in control theory than all of the lectures together. Maybe my point of view is a little bit biased as there's a lot of previous knowledge so everything seems total intuitive. Anyway, I wished my professors had been as talented as you explaining and presenting stuff like that. Great video.
I hope you won't ever take down these videos. It's still a little bit over my head but I expect to be coming back to these over and over again lol
EDIT: I just noticed that I'm already subscribed. I must've seen another video series from you before. You're the best, thank you very much
Dude you are the MAN. I'm about to be able to pass my control system design course thanks to these videos. Thank you so much.
I have a test tomorrow and this is the first video that i clicked on. You're my hero
Brian, you are amazing. Honestly. As an undergrad control system engineer, I am indebted to you!
Thanks for your passion of sharing knowledge to the world, keep the good work. You saved my control course and made me enjoy it.
I loved it. Very smooth. I'm into oscillators and this is exactly what I do to find when my system will remain astable.
Been teaching control engineering since many years, but understood today 😇. Thank you Sir 😊
Great content as usual
Control engineers are very proud to have you
Your explanation of concepts is awesome!!
Thanks for your clear teaching style, it is much appreciated.
Awesome Class Brian. Great refresher now that I'm studying for my FE!
Brilliant Lecture... I am so much less confused... THANK YOU!!!
Thanks a lot , a great effort Mr.Brian (Y) being supported me in several difficulties.
YOU SHOULD HAVE DONE THIS AGES AGO! I absolutely love the videos. To the point, interesting, amazing! Simply amazing! Thank you so much :) I have an exam I'm sure I'll pass thanks to you :) I'll even take up contlrol as an elective now coz you've made me understand and fall in love with it. THANK YOU!
excellent explanation. i like how you explain very quickly and don't waste time like other videos.
Wow, I have gotta say your lectures are sick! Thank you!
The night before an exam, this has got to be the best channel I've discovered on youtube. Our lecturer for the 3rd year control course has made an art form out of being vague. This has clarified so much. Is it possible to get a PDF of the video, like a combination of all the notes you've written during the video just on one long PDF.
Thank you, you saved my live (or at least my grade). This video (and the other two) helped me catch up some lectures I missed due to an illness.
0:00 up to 6:30 is PACKED with a load of insight info!
Great video! Very well done and assumed no previous knowledge so all content was well explained.
GADDAMMIT!!!! thats the best explanation i've ever seen on youtube and I use to study from youtube.
Brian, your videos are saving my life! thanks
Your videos are so good and useful.Thank you so much. May I suggest? if you show how to solve one or two examples on the concept in hand, that will really help the viewer understand the concept. Thank you again for the helpful videos
Man you are so good at explaining!!!!
Thanks for sharing
Thanks for making TH-cam useful. Thank you sir.
This series is the best way to learn about root loci
great work sir keep up the good work our society need people like you .
+brian douglas you are love. Your videos are gonna save my exam tomorrow. Thanks.
Very detail introduction , what a helpful video!!
we dind`t learn any thing about the loucs root method but our teacher ask us to do a course work with this. thank for u help , your video helped me a lot !
This is awesome. Really helpful, clear and engaging. Thanks
Man I love you! Hope I can do it tomorrow in my final exam. Many thanks!
sir I think you rock!
i've learnt what control is really about in this video. thank you!
Perfect video! Brilliantly taught. Thank you!!!
Brian, your 13 mins lecture is more clear than my lecturer who used 3 hours to explain this one.
very well and logical video . Understanding level is very high . Well done.
Amazing! Thank you for creating these videos.
This is a bloody amazing clear video!!
My professor never explained everything up to 6:30 and just explained root locus and threw me off for half the semester. I should have skipped more classes!
That's the conclusion I come to everytime I go to class.
Thanks very much. Great video. I understood every single point and got the whole point of importance of Root Locus