I was planning to build a quadcopter and by luck I had exact the same hardware as u... I build the RC from cheap RF433Mhz radio transmitters, 90m range... As an automation and control engineer, I enjoyed the part of PID tunning... haha. Best luck!
Joob, great series of videos. I like your practical examples. That being said you might want to revisit the shielding of the magnetic field with copper and aluminum. Your scope probe is still sensitive to the E field and the reduction you are seeing is due to the reduction in the E field. B or magnetic fields are much harder to shield. Repeat your coupled inductor experiment with a copper sheet and see what you find. A B field sensor needs to have a E field shield. Then again I could be wrong. It would also be interesting to add an input filter capacitor of 10 - 100 uF right at the input of the motor controller. Bill
I'm currently building my own flight controller, and thanks to your videos I acquired some good general knowledge about quadcopters. Thanks alot for your work, very clear and understandable !
When to use EMI absorber and when to use EMI shield because some companies offer two different types with non conductive adhesive. The problem faced is EMI in the system !
All the three vedios are superb👌👌👌. Sir can i get some help regarding my project actually I am facing EMI problem in my MCU 8051 bcz AC high voltage lines are passing near to my MCU on same PCB plane and DC rectifier for MCu is also made from same AC line sharing from high inductive load line bcz of this false program is been triggered bcz On and off switching of induction motor on the high line via electromagnetic relay. It's may be EMI issue☝️☝️🤔plz suggest me.
I have finished building my quad and it flied only when it's battery is not fully charged because when fully charged it suffer from emi although I have put an aluminum plate uonder the flight controller the question is . Will it work if I use low pass filter on the scl and sda or the embedded low pass filter in the gyro to get rid of this noise ?
Double check your wiring, solder joints and vibrations. Normally you don't have any EMI problems when everything is correctly connected. Never use a filter to mask an underlying problem.
Joop Brokking I don't know ..but before I place an aluminum plate under the controller I couldn't even fly it because problems starts just a second or two after motors start like the speed of one side motors increase speed rapidly or they stop spinning and the esc's start beeping and they don't start again till I restart the controller But after placing the aluminum plate under the flight controller these problems were rduced about 60 percent and it could fly when battery voltage is below 11.8 (when battery is not fully charged) but even with this voltage still same problems occur but much less frequently And I will check the soldering but don't think it is the source of these problems
I am automation, electrical and computer graduated engineer... still a lot to learn from you! All of your videos are super professional!
Thanks for the compliment! And good to hear that you learned something from my videos.
I was planning to build a quadcopter and by luck I had exact the same hardware as u...
I build the RC from cheap RF433Mhz radio transmitters, 90m range...
As an automation and control engineer, I enjoyed the part of PID tunning... haha. Best luck!
Joob, great series of videos. I like your practical examples. That being said you might want to revisit the shielding of the magnetic field with copper and aluminum. Your scope probe is still sensitive to the E field and the reduction you are seeing is due to the reduction in the E field. B or magnetic fields are much harder to shield. Repeat your coupled inductor experiment with a copper sheet and see what you find.
A B field sensor needs to have a E field shield.
Then again I could be wrong.
It would also be interesting to add an input filter capacitor of 10 - 100 uF right at the input of the motor controller.
Bill
I'm currently building my own flight controller, and thanks to your videos I acquired some good general knowledge about quadcopters. Thanks alot for your work, very clear and understandable !
Thank you Joop, yes, I did learn something out of this video, to twist low voltage supply wires too.
4:00 twisted wires
4:40 copper shield
7:53 remedies
Thank you for the explanation and demo! Back to those days when I did fpv - I was missing this knowledge.
Thank you, it was great to be able to see the effects of EMF and how the simple fixes could help to reduce them.
thanks for sharing this. im building by first quad and it will help alot. thanks
aarghh.... I have resisted for so long, but watching your videos has finally made me buy an oscilloscope. Does this mean I am a real nerd now?
Yep, 100% nerd ;-) You will thank me later.
I was hoping perhaps you would of talked about external EMI too especially extreme examples such as HIRTA.
When to use EMI absorber and when to use EMI shield because some companies offer two different types with non conductive adhesive. The problem faced is EMI in the system !
Great videos series. Thank you very much.
Thank you so much Joop! This series of videos has been a fantastic and very through explanation of this topic.
Tankyou papy for this informations
Awesome explanation
Thanx a lot for such a visual explanation!
Batarya çıkışına filtre ekleyerek vdeo gelebilir misiniz
All the three vedios are superb👌👌👌.
Sir can i get some help regarding my project actually I am facing EMI problem in my MCU 8051 bcz AC high voltage lines are passing near to my MCU on same PCB plane and DC rectifier for MCu is also made from same AC line sharing from high inductive load line bcz of this false program is been triggered bcz On and off switching of induction motor on the high line via electromagnetic relay.
It's may be EMI issue☝️☝️🤔plz suggest me.
Excelent explanation...thank you
Great! Very useful.
I have finished building my quad and it flied only when it's battery is not fully charged because when fully charged it suffer from emi although I have put an aluminum plate uonder the flight controller the question is . Will it work if I use low pass filter on the scl and sda or the embedded low pass filter in the gyro to get rid of this noise ?
Double check your wiring, solder joints and vibrations. Normally you don't have any EMI problems when everything is correctly connected. Never use a filter to mask an underlying problem.
Joop Brokking
I don't know ..but before I place an aluminum plate under the controller I couldn't even fly it because problems starts just a second or two after motors start like the speed of one side motors increase speed rapidly or they stop spinning and the esc's start beeping and they don't start again till I restart the controller
But after placing the aluminum plate under the flight controller these problems were rduced about 60 percent and it could fly when battery voltage is below 11.8 (when battery is not fully charged) but even with this voltage still same problems occur but much less frequently
And I will check the soldering but don't think it is the source of these problems
Hello, I want to ask, is there any problem if we route our esc signal wire close to battery. If anyone can help then plz.
Do you need to ground the copper or aluminum plate?
I see question already asked and answered thanks: "@Joop_Brokking: In a multicopter it's not necessary to ground the shielding."
impressive!!!, thank you!
ill shield my x8 with aluminium foil;)
thanks alot for your advice! great vid
Does the shielding need to earthed / grounded?
In a multicopter it's not necessary to ground the shielding.
i love you man