What is the unit to measure the force of a solenoid? is it newton, and what is the expected power from that solenoid you were using ? and how can i control the force of "push solenoids", i want to use it as hammer.
i am giving this out due to the darn walstreet thing. i have been trying to tell this and every time i build them show tem or patten them, i get blocked. this has been right under our noses. i have now decited it is time everyone knows the truth.
now take apart any known coil or transformer realy look at what happens when you apply the field of a goil! you need t do a one way winding! at the ed of the winding or end you go strait down then start the same way. not back and forth. that is why energy crises and free energy is surperessed. they cheet just under our noses! im making a video posting why and when this started.
ok here is my big complaint. this video shows truly what i have seen for years. but im making a video and how 3rd world countries wound the coils. thake the drawing to heart! put the polarities on it! and exactly do the same with the coil. ( the kicker) purposly waisting electricity and waist. this is as for motors and transformers! realy look at the coil construction. you will find that they are wound back and forth! each back down winding will cancil out the previously wound sinding!
Hi Jeri - @ 2:44 So if one calculated the difference in the current pull VS the current required at the point that the solenoid releases the weight - could the weight be calculated? Solenoids are simple movers at best I know, but I was wondering if one could use them with current regulation for a simple Haptic technology feedback? BTW good luck with your amateur radio exam :)
I LOVE YOU JERI - please keep up the good work you are doing by demistifying electricity and its applications - quite opposite to my university professor of electrotechics whose only purpose was to beat us down so he and his 40 years old knowledge coudl appear bigger. LOVE YOU! :)
Thanks for taking the time to do this. People who follow your work know how busy you are and how many projects you are doing ---all at the same time. I am working on a crystalline semiconductor voltaic cell right now and your videos on making a transistor at home have really helped. Thanks.
If your trying to build your own solenoid, what is the wrapping pattern for the wire. do you wrap stacked discs of wire along the core or is it one layer up the core then the next layer down and up and down.?
I built one of those floating ball machines using a coil and IR led/phototransistor. I tried short, fat coils and long skinny coils (using the same magnet wire length) and the short fat coils worked much better. This seemed wrong since the long skinny one has more turns. Any idea why? I was using carriage bolts for a core.
@ngneer999 Mag strength = current X turns. But what happens to the strength depends on the path it must take, i.e. the core, etc.. Maybe the path the flux had to take through the air (in addition to the iron) had a big affect on the strength. What would be the result of your trials if you used iron for both the inside AND outside the coil, I.e. wind it on a long, narrow horseshoe? Would fat beat skinny then? My gut says if you use the same path for both shapes, it gets back to current X turns.
@jimbobg65 Every turn costs money; every turn of SC wire costs big money. So they want to limit turns. To increase strength then, increase current, but if you go too high, the SC disappears, so that is self-limiting. So how many volts do you put across a 0-ohm coil to get X amps of current? Something to think about.
For a non-SC coil, you need enough DC resistance to limit current to keep temp below damage point, but still have enough flow to get the max field strength (trade off).
Wow. I always thought solenoids had a magnet in the middle. I thought you could choose to move them in or out based on the direction of the current flow. I guess that'd be a voice coil...
@frac A magnet should work if the coil produced a field of opposite polarity. Of course it would have to be made of a material whose magnetic domains would not flip from the mechanical hammering that a solenoid would take. Magnets are used in some relays (like reed relays) to work with the coil. Magnets are sometimes used to hold relay armatures in whichever position the relay was last put in. Or to prevent contact bounce.
Academy of Analog Pinball Wizardry? Wow that title sounds very promising! Looking forward to more!
By the way, I hope those shamelessly tortured solenoids were already dead before you cut them to pieces :-)
By the way, interesting that you drew little cats on those batteries; there used to be a battery factory called (translated) "White Cat Batteries" where I come from. witte-kat-batterijen dot nl
@jacgoudsmit In North America, it's from Eveready "Nine Lives" batteries. There was a cat jumping through a nine on the case. Betterijen is way cooler than battery. I think I might start using that in English.
@jeriellsworth It would be one heck of a coincidence if they were the witte-kats jacgoudsmit mentions. They were probabably the black cats of the Eveready trademark (USPTO registration no. 3384908), which was first used in commerce in 1959.
@jeriellsworth The Classic Eveready 9V batteries had the cat with the lightning bolt tail jumping through the number 9. They still have a smaller logo of the cat on the Everready 9V.
@Insignificantful With enough voltage to overcome the inductance of the coil, which would tend to prevent any change in the current through it, if you had a sensor to determine the armature position, you should be able use PWM to put it where you want. But it would be like regulating air to a pneumatic cylinder: it's going to want to slam to one end or the other and you would have to really keep close control to balance the forces of the spring pulling one way and the load the other.
@droidclone When the magnetic path is through a closed iron circuit (as in this case), the flux is in a circular shape. Where is the start or end of a circle? There is none. So there is no pole per se. A pole is just a place where you can shove in something to sense/measure the flux, but if it is inside where you can't get at it, one place is just as "poley" as another. If you removed the armature, the poles would be where the metal ends and the hole in the coil starts. It's just a concept.
@dealio82 Yes, but the hard part is not the coil, but the iron magnetic path around it that focuses the flux to get maximum force on the armature, without which if would be much weaker. But why start from scratch when there are so many available as surplus? If you want one to play with, find a dead auto starter solenoid. Remove screws or grind/file off rivets to open and repair the wire break or whatever; the fault should be easy to see. AC solenoids can be had from scrapped clothes washers.
@jeriellsworth OK, we will let you off the hook now that we know. See, that wasn't hard, was it? (We mushrooms just like to see a bit o' light from time to time.)
Don't forget about driving the coil from a higher than rated voltage through a dropping resister to counteract the inductance's tendency to extend the pull-in time, that is to say, to make it quicker.
When alien tripods raise out of the ground and you find your car is no longer starting, replace the solenoid. I picked up that tidbit of advice from Tom Cruise when he wasn't busy crawling across the ceiling and shooting sparks out of his ears.
@illustriouschin@campkohler From the sci-fi movies, the parts don't fail; there is no explanation given, but either the batt fails to move electrons or electrons won't flow in a conductor until they have "left the building." Besides, if the solenoid gets ruined, why wouldn't the starter windings, ignition coil(s), fuel injectors, transmission solenoids, speaker coils or any other windings you can name be similarly ruined? Are you saying they have a Starter Solenoid Death Ray? :-)
@CampKohler The insulation on the solenoid coils are particularly susceptible to electromagnetic pulses. The insulation melts and makes all the elcetrons go cuckoo-bananas.
@illustriouschin Sorry, but no sale on that explanation. The cars always start up after the aliens leave, so nothing was really damaged. Cuckoo-bananas, however, is a perfectly acceptible explanation.
Am I going crazy or do you have Pikachu drawn on those batteries in your diagrams? Lack of sleep is driving me crazy.
Iamlaughingman 3 days ago
What is the unit to measure the force of a solenoid? is it newton, and what is the expected power from that solenoid you were using ? and how can i control the force of "push solenoids", i want to use it as hammer.
SalehMagrabi 6 days ago
Thanks
NotSoLiberal 1 week ago
That music was pretty gay man. Sorry.
sonicfuker 1 week ago
where is Part 2 ??
SalehMagrabi 1 month ago
my left ear really enjoyed this video, in all seriousness though, great video Jeri.
solidacid1337 2 months ago
my right ear is jealous of my left ear being soothed by jeri's voice.
ryantheleach 3 months ago
i am giving this out due to the darn walstreet thing. i have been trying to tell this and every time i build them show tem or patten them, i get blocked. this has been right under our noses. i have now decited it is time everyone knows the truth.
tcservices1 3 months ago
now take apart any known coil or transformer realy look at what happens when you apply the field of a goil! you need t do a one way winding! at the ed of the winding or end you go strait down then start the same way. not back and forth. that is why energy crises and free energy is surperessed. they cheet just under our noses! im making a video posting why and when this started.
tcservices1 3 months ago
ok here is my big complaint. this video shows truly what i have seen for years. but im making a video and how 3rd world countries wound the coils. thake the drawing to heart! put the polarities on it! and exactly do the same with the coil. ( the kicker) purposly waisting electricity and waist. this is as for motors and transformers! realy look at the coil construction. you will find that they are wound back and forth! each back down winding will cancil out the previously wound sinding!
tcservices1 3 months ago
The pie cut out of the solenoid was cool. Bet that was tricky to pull off.
Great vid, looking forward to the follow up vid on ampere turns.
beastlt12 4 months ago
Thanks Jerie! I appreciate what you do...
ruic3 5 months ago
I love this chick!
bschreffler 5 months ago
Hi Jeri - @ 2:44 So if one calculated the difference in the current pull VS the current required at the point that the solenoid releases the weight - could the weight be calculated? Solenoids are simple movers at best I know, but I was wondering if one could use them with current regulation for a simple Haptic technology feedback? BTW good luck with your amateur radio exam :)
tmfred1 5 months ago
I LOVE YOU JERI - please keep up the good work you are doing by demistifying electricity and its applications - quite opposite to my university professor of electrotechics whose only purpose was to beat us down so he and his 40 years old knowledge coudl appear bigger. LOVE YOU! :)
hrvatskasad 5 months ago
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hrvatskasad 5 months ago
That photo at the end looks like an album photo for a band. Jeri and the Solenoids?
markiduval 5 months ago
@markiduval LOL. I like it. I will work on my guitar.
jeriellsworth 5 months ago
Jeri you are the coolest pinball wizard ever.
73 - KD0PLR
josh2utube 5 months ago
Kitty battery!!
Afrotechmods 5 months ago
Thanks for taking the time to do this. People who follow your work know how busy you are and how many projects you are doing ---all at the same time. I am working on a crystalline semiconductor voltaic cell right now and your videos on making a transistor at home have really helped. Thanks.
Lidmotor 5 months ago 3
@Lidmotor I can't wait to see what you come up with.
jeriellsworth 5 months ago
I WANT THAT T-SHIRT SHE IS WEARING IN THE LAST IMAGE. :O Where is it from?
LukeeeeBennettPlus 5 months ago
@LukeeeeBennettPlus I'm not sure the shirt is still being produced. I got it from a friend Seattle that sold them on his website.
jeriellsworth 5 months ago
@jeriellsworth Awwww, such a shame. :(
LukeeeeBennettPlus 5 months ago
If your trying to build your own solenoid, what is the wrapping pattern for the wire. do you wrap stacked discs of wire along the core or is it one layer up the core then the next layer down and up and down.?
zanobi 5 months ago
@zanobi The next video will explore the geometry of the solenoid. I've only seen winding the entire length and then moving up a level.
jeriellsworth 5 months ago
About time you posted something. Youtube was getting boring. :)
AntiProtonBoy 5 months ago
I built one of those floating ball machines using a coil and IR led/phototransistor. I tried short, fat coils and long skinny coils (using the same magnet wire length) and the short fat coils worked much better. This seemed wrong since the long skinny one has more turns. Any idea why? I was using carriage bolts for a core.
ngneer999 5 months ago
@ngneer999 Mag strength = current X turns. But what happens to the strength depends on the path it must take, i.e. the core, etc.. Maybe the path the flux had to take through the air (in addition to the iron) had a big affect on the strength. What would be the result of your trials if you used iron for both the inside AND outside the coil, I.e. wind it on a long, narrow horseshoe? Would fat beat skinny then? My gut says if you use the same path for both shapes, it gets back to current X turns.
CampKohler 5 months ago
What a BABE!
Wish my electronics teacher was that hot!
toddhawley 5 months ago
How about millions of turns of super-conducting 0Ω wire? I've always wondered about DC resistance in inductors.
jimbobg65 5 months ago
@jimbobg65 The electromagnets in a MRI machine are super conducting and that is a huge strong magnet.
jeriellsworth 5 months ago
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chrisgj198 5 months ago
This has been flagged as spam show
@jeriellsworth They work prety well as solenoids too, youtube lEJ2notNLo0
chrisgj198 5 months ago
@chrisgj198 even better one 6BBx8BwLhqg
chrisgj198 5 months ago
This has been flagged as spam show
@chrisgj198 even better one youtube 6BBx8BwLhqg
chrisgj198 5 months ago
@jimbobg65 Every turn costs money; every turn of SC wire costs big money. So they want to limit turns. To increase strength then, increase current, but if you go too high, the SC disappears, so that is self-limiting. So how many volts do you put across a 0-ohm coil to get X amps of current? Something to think about.
For a non-SC coil, you need enough DC resistance to limit current to keep temp below damage point, but still have enough flow to get the max field strength (trade off).
CampKohler 5 months ago
o_O production
hmm, guess there will be more videos :D
sonicase 5 months ago
:)
xapemanx 5 months ago
actuators are very important for computer science AI.
MustNotRead 5 months ago
Wow. I always thought solenoids had a magnet in the middle. I thought you could choose to move them in or out based on the direction of the current flow. I guess that'd be a voice coil...
frac 5 months ago
@frac A magnet should work if the coil produced a field of opposite polarity. Of course it would have to be made of a material whose magnetic domains would not flip from the mechanical hammering that a solenoid would take. Magnets are used in some relays (like reed relays) to work with the coil. Magnets are sometimes used to hold relay armatures in whichever position the relay was last put in. Or to prevent contact bounce.
CampKohler 5 months ago
Academy of Analog Pinball Wizardry? Wow that title sounds very promising! Looking forward to more!
By the way, I hope those shamelessly tortured solenoids were already dead before you cut them to pieces :-)
By the way, interesting that you drew little cats on those batteries; there used to be a battery factory called (translated) "White Cat Batteries" where I come from. witte-kat-batterijen dot nl
jacgoudsmit 5 months ago
@jacgoudsmit In North America, it's from Eveready "Nine Lives" batteries. There was a cat jumping through a nine on the case. Betterijen is way cooler than battery. I think I might start using that in English.
frac 5 months ago
@jacgoudsmit Yep. The coils were dead already for various reasons. I remember getting batteries with cats on them as a kid.
jeriellsworth 5 months ago
@jeriellsworth It would be one heck of a coincidence if they were the witte-kats jacgoudsmit mentions. They were probabably the black cats of the Eveready trademark (USPTO registration no. 3384908), which was first used in commerce in 1959.
CampKohler 5 months ago
@jeriellsworth The Classic Eveready 9V batteries had the cat with the lightning bolt tail jumping through the number 9. They still have a smaller logo of the cat on the Everready 9V.
Holosuite 5 months ago 4
Nice explanation. I look forward to more videos from the Academy of Analog Pinball Wizardry (neat name.)
FlyByPC 5 months ago
Argh, damn secrecy. This just makes your project with Intersil sound more awesome. Hopefully you can show the real project soon.
izerth 5 months ago
When I see jeriellsworth uploaded a video i know it will be a helpful email, so I rush to see it
:) Very nice video Jeri
Very Eager for the next always
thank you
engmustafa83 5 months ago
damn having a broken headset! The left ear is screwed so i couldn't hear you D:
(Also damn not having speakers :/ ) ~going down to the shops to go get a headset!
reaperdead 5 months ago
CoOl, Thanks Jerri
FlyKingRy 5 months ago
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thijsloon 5 months ago
What happens when you use PWM signal? Can you make it so the solenoid go half way?
Btw: Your hot.
Insignificantful 5 months ago
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CampKohler 5 months ago
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CampKohler 5 months ago
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CampKohler 5 months ago
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CampKohler 5 months ago
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CampKohler 5 months ago
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CampKohler 5 months ago
@Insignificantful With enough voltage to overcome the inductance of the coil, which would tend to prevent any change in the current through it, if you had a sensor to determine the armature position, you should be able use PWM to put it where you want. But it would be like regulating air to a pneumatic cylinder: it's going to want to slam to one end or the other and you would have to really keep close control to balance the forces of the spring pulling one way and the load the other.
CampKohler 5 months ago
Sweet. Thanks for the info!
redpillftw 5 months ago
On a solenoid, I'm a little confused where the poles are at. Are they on the outside and inside or are they at the ends of coil where it is open?
droidclone 5 months ago
@droidclone The field travels down the middle of the coil and around the outside. The poles are at either end.
jeriellsworth 5 months ago
@droidclone When the magnetic path is through a closed iron circuit (as in this case), the flux is in a circular shape. Where is the start or end of a circle? There is none. So there is no pole per se. A pole is just a place where you can shove in something to sense/measure the flux, but if it is inside where you can't get at it, one place is just as "poley" as another. If you removed the armature, the poles would be where the metal ends and the hole in the coil starts. It's just a concept.
CampKohler 5 months ago
There is a cat on that battery. I miss those 9V batteries.
vmelkon 5 months ago
@vmelkon Oh yeah, the old "9 Lives" Eveready battery logo. I had totally forgotten about those!
Guysm1l3y 5 months ago
@dealio82 Yes, but the hard part is not the coil, but the iron magnetic path around it that focuses the flux to get maximum force on the armature, without which if would be much weaker. But why start from scratch when there are so many available as surplus? If you want one to play with, find a dead auto starter solenoid. Remove screws or grind/file off rivets to open and repair the wire break or whatever; the fault should be easy to see. AC solenoids can be had from scrapped clothes washers.
CampKohler 5 months ago
A great, concise video! These short lessons on basic stuff is great for beginners like myself. I look forward to more!
silverstream314 5 months ago
Can we make a solenoid
dealio82 5 months ago
Thanks Jeri! Awesome lesson.
omichron420 5 months ago
Gorgeous pic of you at the end with the Intersil team! Hope to see whatever projects you guys come up with. :)
joshcryer 5 months ago 21
@joshcryer Thanks!
jeriellsworth 5 months ago
Solenoid good. Jeri job good.
Kevbo4 5 months ago
when is A-Z electronics Diodes gunna be done?
KaslarProductions 5 months ago
@KaslarProductions A-Z videos take huge amounts of time and I can't devote the time to them for a while. It will be months.
jeriellsworth 5 months ago
@jeriellsworth I figured as much. What you do is great, and will be looking forward to it. Take all the time necessary.
KaslarProductions 5 months ago
@jeriellsworth OK, we will let you off the hook now that we know. See, that wasn't hard, was it? (We mushrooms just like to see a bit o' light from time to time.)
CampKohler 5 months ago
@jeriellsworth They're worth the wait. 8-)
FlyByPC 5 months ago
Is this vid supposed to be a silent one? All I heard was the intro music.
oinkaU 5 months ago
@oinkaU The audio for her speech was mono sound in one speaker so it was probably the speaker you don't use.
illustriouschin 5 months ago
@illustriouschin Strange. I didn't intend it to be mono.
jeriellsworth 5 months ago
@jeriellsworth Yup, left channel only for some reason.
bhtooefr 5 months ago
@jeriellsworth Only your commentary is mono, the music is stereo.
gollumondrugs 5 months ago
Don't forget about driving the coil from a higher than rated voltage through a dropping resister to counteract the inductance's tendency to extend the pull-in time, that is to say, to make it quicker.
CampKohler 5 months ago
Congrats on the new work
RatkoUSA 5 months ago
@RatkoUSA Thanks.
jeriellsworth 5 months ago
When alien tripods raise out of the ground and you find your car is no longer starting, replace the solenoid. I picked up that tidbit of advice from Tom Cruise when he wasn't busy crawling across the ceiling and shooting sparks out of his ears.
illustriouschin 5 months ago
@illustriouschin @campkohler From the sci-fi movies, the parts don't fail; there is no explanation given, but either the batt fails to move electrons or electrons won't flow in a conductor until they have "left the building." Besides, if the solenoid gets ruined, why wouldn't the starter windings, ignition coil(s), fuel injectors, transmission solenoids, speaker coils or any other windings you can name be similarly ruined? Are you saying they have a Starter Solenoid Death Ray? :-)
CampKohler 5 months ago
@CampKohler The insulation on the solenoid coils are particularly susceptible to electromagnetic pulses. The insulation melts and makes all the elcetrons go cuckoo-bananas.
illustriouschin 5 months ago
@illustriouschin Sorry, but no sale on that explanation. The cars always start up after the aliens leave, so nothing was really damaged. Cuckoo-bananas, however, is a perfectly acceptible explanation.
CampKohler 5 months ago
I love 0 views :D
Winsucker 5 months ago