Electronics 101: The Hall Effect explained
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- čas přidán 27. 06. 2024
- Hall effect devices are becoming increasingly common in the hobby. We have Hall effect sticks, compasses, and even hall effect sensors on gas motors which control the timing of the CDI ignition firing.
But what is the Hall effect and how does it work?
This video hopefully explains the way in which this effect works. - Věda a technologie
Such an enthusiastic conductor. We love you for all the conducting you do.
I'd say semiconductor as his lecture affects my knowledge more than other conductors.
This is an incredible explanation of a microelectronics concept that I've had difficulty grasping in the past. Thank you for taking the time to make it clear. Cheers!
I explained it in a much better and simpler way.
czcams.com/video/DtIz_HACSPI/video.html
Fantastic video, I looked everywhere for good explanation and I couldn't find a better one! Thank you for uploading.
This kind of teaching we need in our school system. I really believe when someone explain the things very well, he really understood the subject... I was trying to understand the principle of our turbine meter which has a pickup coil and a rotor. And I'm not sure how the pulses are generated. Now it's very clear to me and i know how to troubleshoot the equipment. Thanks sir.
Love these types of videos. Thanks Bruce!
The magnetic field, the current created by the voltage applied to the Hall affect device and the force acting on the electrons should be all orthogonal to each other. So on your white board the north pole of the magnet should be behind the white board and the south pole in front. Fleming's Left Hand Rule (for motors) gives these directions (it uses conventional current flow, even though that was subsequently shown to be the opposite to reality) would have the positive of the applied voltage at the bottom of the device illustrated with the negative on the top (if the negative of the Hall voltage is to appear on the right of the of a Hall affect device as illustrated).
So this entire 11 minute video is incorrect?
Good explanation of a "mysterious" electronics term. I LOVE this sort of video. Many Thanks Bruce.
Thanks for that video, this is certainly the best explanation I've seen so far.
Love these types of vids... Always fun to learn how everything works.
Thanks bruce...helped me understand my hall effect distributor, on my truck
Thanks for the great video. This is the best explanation I've see so far. Looking forward to more of these theory videos.
It would be cool if you "electrically " took us from the radio transmitter we hold all the way through the prop spinning on an electric plane.... and everything in between. These are great and we learn so much!!!!! Thanks Bruce!
i love these electrical theory videos Bruce! cheers!
It's not a theory...
I explained it in a much better and simpler way.
czcams.com/video/DtIz_HACSPI/video.html
Your whiteboard videos are my favorite. Keep em coming Bruce! :)
Learned something today! Thanks for the video!
Simplifying stuff is a skill , RESPECT.
You sir, are a wonderful teacher. I can tell that you love knowledge and that you enjoy sharing it with others. You've made this concept very easy for me to understand. Thank you so much, God bless!
Thanks Bruce, makes it simple to understand.
Excellent explanation. Thank you so much. You’ve really made this very clear and are unique in your ability to make the complex understandable!
You are incredible at teaching and explaining, I love your sense of humor!
I explained it in a much better and simpler way.
czcams.com/video/DtIz_HACSPI/video.html😊
Now this explained the hall effect its been since about 1964 since I studied electronics 🤤 I watched some other guy do an art lesson that left me more confused than when I started thank you for the simple well done explanation
I've never seen the letter "S" written bottom to top. Great video: simple explanation of a complex subject.
Thank you Bruce.
You are a excellent physics teacher!
Hello Bruce! Great video again, love the whiteboard!
Would love to watch a whiteboard video about optimization of power combo, from props to batteries, going through motors and ESC's, taking into account the weight or flying characteristics desired.
I know it's way too much for your small whiteboard and your almost finished markers, but you have managed yourself to explain so many things that I would think this is not a big task for you!
Thank you for your passion!
I explained it in a much better and simpler way.
czcams.com/video/DtIz_HACSPI/video.html
Great work! More of this, please!
I love your disclaimers at the end of technical vids. I suppose they cut down on the geeky nit-picking a little but probably not enough.
;)
Thankyou for this vid. Very informative. Keep up the great content.
This is a great help! Thank you RCMR:)
I always like watching your videos. Thank you.
Awesome! Explained simply. Appreciate you!
Thank you so much for your help! A great easy to understand explanation!
Great video. Great presentation. Thanks Bruce
I thoroughly enjoy your videos. thanks
great one Bruce......I had a go at explaining hall and its benefits in one of my videos but not a patch on your explanation.....
Thank you, Bruce you explain things so well keep up the whiteboard we love it :D
cool you talk about vintage ESC pod still have a few Tamiya vintage rc car ESC controlled by a servo and still work after 30 years
Very good video. Clear and instructive. Thanks much.
you explain it really well!
That was a bloody wonderful explanation, well done!
Yes please, an explanation of how those solid state gyros work. Black magic I guess. Keep up the great work Bruce.
So now I know what the hall effect is. Great video mate.
Great explanation - thank you
I learned something again. Thanks.
As a car mechanic this has helped me understand more how the sensors work in cars
Crankshaft / camshaft / distributors mostly use hall sensors. Thank you
Bangersnsmash Uk The mirror-mounted compass in many cars has one, too.
Learning the Hall Effect from a bloke in a flannel. Love it :)
As usual really interesting. Thanks!
A very good explanation. Thank you.
I did learn something today. Thanks.
Congratulations Bruce!!!
Tq for ur great explanation Mr. Bruce.
Very clear, thank you. Please discuss the different types of Hall sensors, especially the quantum hall sensor. That sounds interesting.
great video, i look forward to the next whiteboard
Thanx. That was informative and fun. Well done.
always love when the white board comes out. i know im going to learn something good :)
Nice one Bruce..Thanks.
Thanks for your efforts!
Very interesting! Thank you
Very useful information thanks to you I have never had heard about it before
Thanks, you explain very nice I understand immediately
Love your videos. Simple to understand. Gets me there quickly to get a GRASP on the subject. Looking at the thumbs down on a few and wondering why there are as many as there is. Then I realize they are the poindexters that go ( in a nasally voice) ," you said pie is 3.14. Nuh uh, your wrong it's 3.1415." We that watch your videos are laymen and don't have time to watch a 10hr video on the truest form of the subject and probably wouldn't even grasp it anyways. These videos are to get us in the ballpark on a subject and get the AHHHH I kinda understand now. Love your vids Bruce.
Very interesting clear and well explained thanks
Nice quick video. I believe you have the direction of the magnet (magnetic field) mixed up. In the orientation you show the magnetic field is parallel with the movement of the electrons. The cross product between velocity and magnetic field would be zero. The magnetic field would have to be either into or out of the board.
this was amazing. thank you
Thank you. Nice and simple
That helps a lot. Thank you!
Hey retro! I like your style! Nice work!
Great video Mr. White!!!!
Excellent teaching about sensor sir ,thank you sir.
I was told the accent is learned by a very young child. Lip movements are recorded. Very good explanation.
Wow. Residual voltage defined.I love it.
Thank you for this information
Another great video.
Brilliant teacher, thanks very much 😊
You are the cool professor we never had.
I’m glad to see Whitey Bulger decided to make a career change .
Also, excellent explanation , thanks !
Good explanation sir thanks for sharing
i think you did a great job. Thanks
Bloody brilliant. Thanks!
very educative. thank you regards
Thank you Bruce
Nicely explained sir.
The explanation was superb. Especially the bit with the op amp . . . you might include a Schmidt trigger in your next one.
Great great you make it a joy to learn
Thanks Bruce!
Thank you for this!
Thanks mate fascinating as always , ..
+3 for the Aussie accent!! Love from Sacramento, California sir!!!!!!!!!!!!!!!!!!!
Cheers Bruce , nice one
Awesome video mate! Finally someone explained it really well.
Would you please do a video on TWO wire Hall Effect?
Great stuff 😊
The GMR effect (and its relatives) is often used for compass chips these days as its much more sensitive than the Hall effect (GMR effect is a quantum / spintronics phenomenon). For stronger magnetic fields sensors will indeed mainly be Hall effect. All conductors exhibit the Hall effect, but its a tiny small effect in metals which are very low resistivity. Being a semiconductor does not have the advantage you describe as holes and electrons cancel out partially - they both get pushed the same direction. The key point is you need a conductor with a very high resistivity (such as a lightly doped semiconductor). The sign of the Hall constant depends on whether electrons or holes dominate the current.
The field strength of a magnet drops off as the inverse cube of distance, not inverse square, this is because magnets are dipoles, not monopoles.
Tremendous, thank you.
Very interested. Cheers Bruce.
You are the teacher ive been missing my whole life idk how kany videos ive randomly watched but you hleped me understand so easily ive been wondering lately what effect a magnet would have on current, thank you !!!!!! Is there any way i can get specific answers on certain questions not normally asked?
Very interesting RESPECT man
Love this teacher
awsome
Actually they are pushed to the side by the magnet. Which side depends on the pole of the magnet that is closest to the sensor. For the shown deflection the magnet would have come from the direction of the pen on the board, not in the plane of the board. Apart from that a very good explanation.
Well, the electrons themselves are not much affected by the magnet. The moving charge is what gets pushed by a magnetic field. So you have to get electrons moving for them to be affected. That's one thing I noticed.
Hahaha, technically true, I guess that was one of the details he left out to simplify, which I understand as it is not crucial to understanding how hall effect sensors work. Good'ol right hand rule cross products.
One thing I think is most important in educational products: when statement is simplified, it cannot contradict scientific knowledge. "Electrons are attracted to magnet" is this general form is a false statement.
deelkar Really!?! All I can say is.... K.I.S.S. - Keep It Simple, Stupid! C’mon, man! Most of us just want to know how our gimbals control our planes or drones! We don’t want to read a two-inch thick book about the effects of magnetism on a semiconductor. We just want to keep our stuff in the air.
Nice demonstration ;)
Thank You!
I learned something today