Also doubles as a 'nails on a chalkboard' sound generator.

@daveThbfusion

5 жыл бұрын

Great Scoot USA We must go pack fine powdered carbon tightly into tin can for reuse as amplifier, In insane cryocooling , 21st century Mr Microphone

@strongforce8466

5 жыл бұрын

ROFL, hard !

@ryandoubleyou6903

5 жыл бұрын

@@strongforce8466 I know you didn't just say Rofl.......... I know you didnt

@strongforce8466

5 жыл бұрын

@@ryandoubleyou6903 is my comment not enough relevant for you ?

@ryandoubleyou6903

5 жыл бұрын

@@strongforce8466 not enough relevent..... are you 9??

This kind of motor is pretty much universally used in high-end camera lenses to drive the focus mechanism. Because they're hollow rings, they don't interfere with the optical path nor do they require much space (as opposed to a miniature magnetic motor plus a gearbox system). Additionally, they're very fast and can change direction near instantly (no high RPM components like in a magnetic motor + gear train design), plus they're practically silent due to high driving frequencies and no gears. The last advantage is that some versions of this design allow manual focus override. On cheaper lenses with a motor + gear train, you need to flick a mechanical switch to go between manual and autofocus, in order to disengage the gears. In ring-shaped piezo motor designs, you can manually adjust focus at any time, as forcing the focussing ring to move just makes the piezo motor slip without damage.

@AppliedScience

8 жыл бұрын

+JMMC1005 Good info!

@dzhiurgis

8 жыл бұрын

+JMMC1005 Should be useful in telescopes as well

@scottverge938

8 жыл бұрын

+JMMC1005 I was wondering about that. It was my first thought when I saw it. Additionally they are damn expensive to get replaced when they go bad :O $400 to get the one in my Nikon 80-200mm f2.8 replaced :(

@JMMC1005

8 жыл бұрын

+Scott Verge Ouch, that's more than the entire cost of one of my lenses which features the same kind of motor!

@scottverge938

8 жыл бұрын

Well it is a $2500 lens if you bought a new one.

I have GOT to get myself one of THESE!

@Filaxsan

8 жыл бұрын

+NurdRage Yeah you shuld! Big fan of both, nice to see you here as well.

@nerdalert226

8 жыл бұрын

+NurdRage Indeed, imagine the potential for a rotovap apparatus...

@Vicvines

6 жыл бұрын

Independnece Day

@burstyou4290

5 жыл бұрын

Prepare 300 $ at least lol

@technimechanical

5 жыл бұрын

Yeah because it looks so useful for everyday life

I had never heard of this. Very cool. I work with piezometers to measure pore water pressure in dams. Maybe it's just in Texas, but anything with a prefix piezo- we pronounce "pizzo".

@yellow_spinning_goose

2 жыл бұрын

hi

@klam77

11 ай бұрын

pizza motors!

Awesome concept, but oh my goodness the sound! Is it that fingernails-on-the-chalkboard sounding if you use something plastic or metal? That is, is the awful sound due to the piezo aspect of the device or because it's interacting with the glass?

@AppliedScience

8 жыл бұрын

+Jason Patterson It's mostly the glass. The included disc rotor is fiberglass, and it's almost silent. The stator by itself is completely inaudible.

@guiselic

8 жыл бұрын

The sound depends on the surface in contact with the rotor due to friction , but one of the project requirements for these devices is to operate above audible frequencies (about 20kHz).

@PyroChimp75

8 жыл бұрын

+Jason Patterson that's EXACTLY what I was going to say lol

@RimstarOrg

8 жыл бұрын

+Jason Patterson I guess you could sit something like a plastic or rubber disk on the motor and then put the glass on top of that. Maybe that would be quieter.

@jasonpatterson8091

8 жыл бұрын

+Applied Science That's good to know. I have no idea what I would use it for, and the visual of the little vacuum flask spinning was perfect, but that sound was no bueno. Thanks for the info!

Thanks for another interesting video, I'm a big fan. The idea of making a linear motor or complex path is a good one, but it unfortunately would not be quite as simple as you would think at first. The piezo actuators here actually aren't acting as independent little fingers. Rather, they are exciting a very specific resonance mode in the FR-4 substrate. You could arrange these actuators in a line on a pcb and excite them to create a traveling wave, but that wave will hit the end of the pcb and reflect back, creating a standing wave, and thus no longer creating the elliptical motion at the surface. You might think of canceling or absorbing the wave such that it doesn't bounce back, but resonance is typically needed in a motor like this in order to get sufficient amplitude of motion. The ring is actually a special case that essentially allows the wave to continue traveling in a circle forever. There are a few examples of linear traveling wave motors in literature. Commercial linear piezoelectric motors typically use more of a stepping approach with two-axis piezos, which seems like what you had in mind here, but unfortunately these ones won't quite do it. Cheers!

@AppliedScience

8 жыл бұрын

+Joe Mullenbach Great info! Thanks! I hadn't thought about the problem of absorbing the wave in an open-path string of actuators.

@mulle167

8 жыл бұрын

+Fester Blats great metaphor. In principle, yes, you could wrap a track around and back to the start in a path that is not a ring. This would be a waveguide, and it's commonly done for different types of waves including RF electromagnetic and ultrasound. Keep in mind here though, that the board itself is moving, it is the medium in which the wave is traveling. You couldn't simply use the other side of the board, because the wave is there too. You would have to have another piece of board or some other link in order to guide the wave back to the start without interfering with itself.

@BenjaminEsposti

8 жыл бұрын

+Joe Mullenbach "You could arrange these actuators in a line on a pcb and excite them to create a traveling wave, but that wave will hit the end of the pcb and reflect back, creating a standing wave, and thus no longer creating the elliptical motion at the surface." ... but you can't get a circle from a straight line anyways, or am I missing something? Have you seen the little toothbrush head "bugs", made using a small watch battery and a vibrating motor? The toothbrush bristles, in combination with the vibrating motor, create motion in generally one direction ... so the little "bugs" will move forward (obviously not perfectly forward ... but you get the point :P). That's how I think of this piezoelectric motor working. I may be wrong though (and I probably am, as I am always wrong XD) I see what you mean about "exciting a specific resonance mode in the FR-4 substrate" - the piezo elements are on a section of board that has minimal mechanical interference/connection (whichever word is better lol) with the rest of the PCB, so as to help maximize the energy going into producing the rotation. :P

@mulle167

8 жыл бұрын

+Gerben van Straaten Yes, this is a clever idea, and I think it would work, though maybe not for this set of design constraints. The problem that you typically run into when you remove the energy of the wave rather than propagate it is that the amplitude of motion is much less. Because piezoceramics create such little strain themselves (

@TonyBox

8 жыл бұрын

+Joe Mullenbach could you make a linear track with two rows of circular actuators, forming waves in opposite directions? sort of like this: 8888888 ----> where the top rings are all anti-clockwise and the bottom rings are all clockwise. Whatever is being moved would sit in the center of both bottom and top rows of actuators.

Makes a horrible noise. But... Man. That is just cool...

@nixie2462

8 жыл бұрын

+SYNTHS!! Just because he isn't using some kind of friction tape (wich the motor seller also provides) and the screeching sound is the motor "turning" faster than the glass (i.e. The carrying wave scarping against the glass because they don't match speeds)

If I recall correctly, Canon invented and patented this decades ago and didn't quite know what to do with it, until they found it would make the perfect autofocus motor. Fast, quiet, precise, ideal form factor (ring), and still reasonably energy efficient if both sliding sides are engineered properly. They called it "ultrasonic motor", which used to be a hallmark for the fast and quiet AF motors, but they later made a small fast spinning US motor which drove a traditional geared slightly more noisy autofocus system and also called it "ultrasonic", so we now have to specify "ring US" vs. "micromotor US". The ultrasonic AF system has only recently been superceded by a stepper-motor AF, which can drive at arbitrarily slow speeds for focus-following in videos.

@createthisdotcom

8 жыл бұрын

+pinkdispatcher I came here to ask about this. Is this how ultrasonic motors are built? I always thought they were made from two solid ring materials. I didn't think they were made from individual piezo motors. This fascinates me because it has robotics applications. Seems like anyone could make this style motor with some PCB design software, whereas ultrasonic motors have always been out of reach for hobbyists.

Very interesting demo. Thanks for sharing it.

Thanks for another great video Ben!

Awesome! I saw your post come up and I spent a while trying to imagine what kind of motor might be able to use piezoelectrics. Not what I was expecting at all!

You're very quickly becoming one of may favorite channels. Keep it up. ☺

Cool video. Thank for sharing. That sound is crazy!

This tickles my brain so hard. I really enjoy the channel. Thank you for making videos like this.

Imagine making a robot on a single PCB, with lines of piezoelectric elements on the bottom to act as tank treads. This is cool stuff!

I built a micro edm that had linear nano positioning stages that used piezo motors. it could move 0.1 microns at a time. but the limiting factor wasn't the motors, it was the encoders.

@brianjensen5200

5 ай бұрын

Plenty of high resolution encoders available, even sub picometer accurate, although those require special permits to obtain

I have their devkit too, another interesting feature of the tech is that it's really precise (I think they have a demonstration video where the pcbmotor has 1m long arm attached and the far end moves by a tiny amount in a single "step".

Thanks, Agents of SHIELD, ever since the latest season started my feed has been flooded with interesting piezoelectric devices!

wow, really interesting piece of tech, I never knew these piezzo motors exist, at least I haven't imagined them in this form. Thanks!

Sweet, I've read about peizo-motors that are used in camera AF systems but I've never seen one before. If you made a big X/Y array (with feedback) if it would make a good 3D printing bed.

Wow, long time no see! Hope you keep the videos coming. You are one of the best technology channels on youtube. Great video! Cheers!

@AppliedScience

8 жыл бұрын

+Claudio D. Thanks! The Patreon page and growing subscriber base has pushed me to make fewer, but higher quality videos (better production value, more involved projects, more detail, etc). I think it will work well for me to make short informal videos that are free on patreon more often, and release a longer, higher-quality video when a big project is completed maybe once a month

@MrClaudiodonate

8 жыл бұрын

+Applied Science Nice, thanks for the reply. Didn't know you had a Patreon page, I'll check it out. Maybe some day you can do youtube videos full time, wouldn't that be wonderful! =) Have a nice one.

@chris_1337

8 жыл бұрын

+Applied Science Ben why don't you switch to a "per month" basis on Patreon and post more videos? Considering how cool the projects you work on are, I'd be glad to see shorter, less polished videos more often rather than the opposite.. Of course this is just my opinion, but it'd be worth seeing what your other subscribers think! Thanks as always and keep up the great work!

@MrClaudiodonate

8 жыл бұрын

+WeBDaEMoN33 Second that.

@AppliedScience

8 жыл бұрын

+WeBDaEMoN33 I've thought of it, but I would feel too guilty if a month (or two!) went by without me producing a video. I originally thought that getting paid per video would encourage me to make more of them, but the main effect has been to make me focus on the quality and complexity of each video, and since my time is limited, I have to make fewer videos. I think my new plan of making short freebie videos mixed in with longer paid videos is a good balance. Let me know what you think.

Absolutely fascinating! I love It! Perhaps one can build a table matrix with hundreds of piezo and have an object move in any direction on a table top. Thanks for this video

Very clear and concise explanation, great content as always.

This is really cool, thanks for sharing!

@MrMartinZockt

8 жыл бұрын

+Samy Kamkar Yeah, really cool! And now you can try to hack it =P

The possibilities.... thank you so much for uploading. Mahalo!

Fascinating, however, I can't quite visualize how the expansion and contraction of the SMD devices, even in a wave pattern, causes the object resting on them to rotate. I'm wondering if there is more to their motion than a simple Up/Down deflection ...

@hanswoast7

7 жыл бұрын

As far as I understood it is a little more. The individual up/down motion of the piezo elements does not make it, but when you time their motion to get a wave, objects are pushed by the wave pattern like deadwood on water. The wave pattern itself is a property of the whole system (plate with all piezos & substrate). It is then more like the system as a whole wiggles and pushes the object around. In a waterwave most water just goes up and down, but when the wave hits you, it still has a momentum in your direction. The whole (here: wave) can have other new properties than its parts (here: piezos, chunks of water). This widely occurs as emergence.

Thanks for the demo and easy to understand explanation mate!

I wonder if it would be possible to use a baseplate of some low cof material like teflon just to avoid the whole metal on glass issue

I have heard of these but I have never saw one until now, thanks.

discovered your chanel just now, I love It ! thank you

actually one interesting application could be in rotating things at very slow speed without gears (unlike electromagnetic) motors and without stepper motors. This is very compact and light-weight for these applications. A good example is say for example a jewellery display, luxury watch, and so on. Nice video :)

Pretty cool device. Thanks Ben.

could this work without touching the part such as external power through the wall of a vacuum chamber?

I'd love to see the linear version scoot around a table on those piezo elements.

that's pretty cool, that's why I subscribe to your channel, thanks Ben

You can also have an electromagnetic linear motor (ex the Maglev train). There will also be a small magnetic field with this piezoelectric motor. A stepper motor is probably more useful in most applications.

This is so cool, I had no Idea you could create motion using electricity without magnetism!

I had no idea that such concept was even possible.... wow!

I need more explanations, do the piezos get taller following waves that go around in a circle, making the object spin using gravity, or do they all constantly vibrate one way ?

@davejenil1537

5 жыл бұрын

The vibration of the piezo electric material depends on the amount of the voltage of the wave applied to the circlular disk . So based on your application more the voltage more the material vibrates. But this will show lot amount of power losses like friction. Instead use servo motors for robotics application.

Piezoelectric actuators are pretty precise as well. We are using some linear piezoelectric actuators in our Optical parametric oscillators to tune the cavity length. They can do sub steps in around 10nm.

@StephanBuchin

5 жыл бұрын

You have an interesting job. Faulhaber has a wide range of even more precise LEGS piezomotors, circular and linear.

@vladimirsch.3015

5 жыл бұрын

@@StephanBuchin Thank you. Wow you're right. They have motors that have an 1nm Resolution. That is really amazing. I'm wondering, if you can use piezoelectric circular motors for long terms, because it feels to me like they will wear out quickly. Do you have experience with them?

@StephanBuchin

5 жыл бұрын

@@vladimirsch.3015 Sorry, no i don't know how they react in the long run but piezoceramic materials have been used for decades in high frequency audio speakers and they are very reliable. They are also used in very demanding applications like fuel injectors for car engines. Have fun at work.

1:35 Ooo, is that a Shaper Origin?! Sneaky product camo XD Nice to see smart people supporting each other.

Hmm, linear motor ? how about x-y linear, maybe a matrix of them, then you could drive an object in any direction

@InnovationBlast

8 жыл бұрын

Interesting idea!

@ZevHoover

8 жыл бұрын

+Sparky Projects wow. imagine a table that was made of this. objects could be moved around on top of it with the aid of some overhead camera or somesuch. that would be awesome.

@sparkyprojects

8 жыл бұрын

+Zev Hoover Give it time, it will become a reality, just remember me when you make your first million :D

@BeHappyTo

8 жыл бұрын

+Zev Hoover Why make the road move when you can just make the vehicles move?

@tigertalar

8 жыл бұрын

+Sparky Projects I emailed PCB motors a few years ago about linear. the disappointing answer was that these simpler pcb version pretty much has to be a ring to transfer any power because it needs to resonate. however i found more complex Piezo LEGS® motors with a horisontal and vertical piezo stacked like tiny legs that micro walked across smooth surface at some power however at much slower speeds and a steep price.

I think it could make other sounds, even if having to switch on/off between movement signals

Love it - wish it didn't have quite the supersonic/ultrasonic squeal. Would it still work with a damping layer of silicone to absorb the ultrascratch eardeath?

Does it also work in reverse as a transducer?

Thanks for the video! Are there any situations you know of where this technology is already used in industry?

Do you think you could make a track or conveyor belt system with interchangeable sections using this? Possibly for moving around small parts like in an assembly line.

these things are frequently called stick-slip motors; that's your search term. A few years back there was a lot of interest in them, hundreds were designed and some patented. A few still exist, the USM, nanomotion and some kind of micrometer positioner, maybe Newport. Nanomotion has both linear and rotary versions for precision xy stages. The bristlebot was another version, driven by a motor, but same general idea.

The sound it makes when turning that glassware was music to my ears

Hi. Thanks for sharing this! Do you know what is resonance frequency of the PZT elements? Cheers

Is it possible use these in the space station instead of the mechanical stuff to open windows?

That sound is great.

The piezo elements that make up the ring, are they specifically designed piezo elements or something else? It's just they look suspiciously like ceramic SMD capacitors, which do have a piezoelectric effect. A few years ago i took apart an old Nikon lens that had a piezo motor for the focus, it was quite interesting, it used a machined aluminium ring with a thin piezo element on the back to distort the aluminium.

@FredSena

8 жыл бұрын

+Dexters Lab 2013 I had scroll a little to find such comment I had in mind. Google "CAPACITOR AS AN ACTUATOR" and you will find at HAD and article about it. My question is if Applied Science will try to make some actuator using ceramic SMD capacitor. Thumbs up to see a hack/DIY of it.

@asj3419

8 жыл бұрын

"They are single-layer PZT (lead zirconate titanate), which is chosen for having a high piezoelectric coefficient. It's true that multi-layer ceramic capacitors also show the piezoelectric effect, but they are designed to reduce it as much as possible, since their job is to act as an electrical capacitor, not an actuator. The capacitance of these PZT components is just a few pF. If the demand for PZT 0402 actuators were as high as .1uF capacitors, the price would probably be about the same." -Applied Science , in response to a similarly worded comment.

thanks for sharing: didn't think you could have applied piezoelectricity this way. WOW! :)

I'm interested in doing some experiments with ultrasonics (levitation, parametric arrays), but I also quite like my sense of hearing. Do you think there's any real risk to limited exposure to these frequencies at relatively low powers? Thanks

Very cool.😎 Thanks for sharing!

Saw similar thing many years ago, but it was piezo linear actuator, working in nano meter range.

Did you try touching it?

@Loebane

8 жыл бұрын

***** Well if it's low amps the volts won't matter.

@unaliveeveryonenow

8 жыл бұрын

+Loebane But it's AC so it can lock your muscles.

@oOMonkeyMagicOo

8 жыл бұрын

+Loebane You can get 100 amps from a couple of volts or you can get only milliamps from a few hundred volts. It is all related to the resistance. Volts/Amps/Resistance are all related and depend on each other. Statements like "Well if it's low amps the volts won't matter." are just stupid. 30 milliamps (0.030 of an amp) across your heart will mess you up.

@oOMonkeyMagicOo

8 жыл бұрын

+Kim Jong-un Jr. DC will "lock your muscles". AC will "lock you muscles" and release them depending on the frequency. 50/60 Hz will lock and release your mucles 50/60 times a second as it cycles.

@Loebane

8 жыл бұрын

oOMonkeyMagicOo Let's not throw stupid around. This is a science channel after all. The important part is the amps from what I've read - your heart isn't in danger until up to about 100 milliamps. I'm no electrician but I believe that high voltages will overcome your body's internal resistance. So in this instance, the high voltage won't be dangerous as long as the amperage is low enough.

Very cool piece of tech indeed ! Not sure the amps this runs on but if 200v they might want to cover the PCB and whatnot! sounds dangerous

Hello! thank you so much for this video! So is it possible for Piezoelectric motors to operate at low voltage? (

Will this count as a capacitive load?

Were you able to find a supplier for the SMD piezo actuators in the USA? Google is suggesting that the Danish company is the only supplier of the parts.

Are these really specific piezoelectric "components"? Basically any ceramic capacitor will exhibit the effect, and I suspect those are just ceramic caps in the ring.

@AppliedScience

8 жыл бұрын

+USWaterRockets They are single-layer PZT (lead zirconate titanate), which is chosen for having a high piezoelectric coefficient. It's true that multi-layer ceramic capacitors also show the piezoelectric effect, but they are designed to reduce it as much as possible, since their job is to act as an electrical capacitor, not an actuator. The capacitance of these PZT components is just a few pF. If the demand for PZT 0402 actuators were as high as .1uF capacitors, the price would probably be about the same.

@USWaterRockets

8 жыл бұрын

Applied Science So, your next challenge would be to make a big linear motor from cheap capacitors. :-)

@JanicekTrnecka

8 жыл бұрын

+USWaterRockets Or just singin SMD capacitor array :-)

The noise is the glass scraping on the elements, hard plastic is quiet.

@BenjaminEsposti

8 жыл бұрын

+Robert Szasz From the closeup, it looks like the elements have some sort of coating on them. My thinking is the squeaking is a side effect of the frequency and/or modulation/sub-harmonics of the whole assembly. (the microcontroller on there adjusts the frequency to get the best torque (however small that is XD), thus the lower-frequency of this adjustment might make the audible noises.)

@RobertSzasz

8 жыл бұрын

Could be. I haven't gotten a kit as I don't have a use for the tech at this point. The videos I've seen show very quiet operation with a rotating element a bit softer than glass. If squiggle actuators were cheaper they would make great ultralight linear actuators for model planes.

Could you organize them in a grid and hook it up to a joystick and use it to move an object in any direction you want?

Maybe I missed it when you talked about it but what is the "torque" or strength of these elements? Also what dictates the strength is it voltage(and obviously size/material as a result of voltage)? This is pretty cool.

Nice Shaper prototype!

Can you use smd caps with crappy dielectric as those 'piezoelectric devices'? SMD caps with Y5V dielectric are quite prone to emit a sound when they see an AC across them because of the piezoelectric properties of the dielectric they're using.

how did you get a shaper?

wanted to buy the same, but that website, does not have a product page? how to buy?

Cool demo! Are the voltages across the piezos simply switched on-off or is there a polarity reversal? Thanks for posting this.

@theLuigiFan0007Productions

8 жыл бұрын

I'm guessing half wave AC. Basically, frequency modulated DC.

@glasstronic

8 жыл бұрын

I wonder if some gain could be had were they driven with FM crossing zero? Have the piezos push *and* pull.

@theLuigiFan0007Productions

8 жыл бұрын

glasstronic It definitely could be like that, but it'd be simpler to implement it with half wave. The more I think it it, it probably does push and pull, which would make it easier to reverse. But you'd have to have really perfect tuning of the resonations. So for the microcontroller being used to tune it and the odd cutout of the pcb.

@glasstronic

8 жыл бұрын

theLuigiFan0007 Hopefully, there are other tinkers pondering this. As you are aware, those piezos might indeed be supplying reverse polarity to others in the circuit as the fired ones relax. I'm sure you know the drill.

Too cool! ...what kind of base is that for a compact router? Looks nice.

It'd be cool having like a 1000x1000 grid of these where you can simulate all different kinds of wave patterns.

This thing is awesome. That said, is no one going to mention the hell-raising nail on chalkboard sound of it running?

How large can you make this? Would it be possible to make a piezoelectric treadmill for virtual reality? So you could be walking on the spot but having the treadmill change direction depending where you were heading in the virtual world?

I would love a Video on that cool "Manual-CNC", i can't remember the name of, but was pretty amazing

how is the resonant frequency calculated? And is it actually necessary to operate the wave motion at the resonant frequency?

That sound... went straight into my brains

wondering if this also causes a vibration effect? If not, what woould you have to do or combine with this PCB to get the strong vibration force? I have crretaed a new product and we are thinking of putting an ultra sonic vibration in the lint brush handle as vibration actually assists in removing lint from clothing a lot faster. We have a simple 3 volt, 9mm diameter by 23 mm total body length vibrator motor in it right now but i feel this is not the most viable and advantageous opption to get the high quality vibration that we need. Any thoughts or ideas will help. I really like the philips oral care electric toothbrush ultra sonic vibration and want to use soemthing exactly along these lines but i bleieve they have patented their ultra sonic vibration but it would not effect me becasue im yusing it for a different application! thx in advance!

your awesome man love your videos

There is another aspect of this. Adding it to the outer edge of wheels to create a higher-friction surface. Of course if the parts to make it are pricey, it still might be better value to just make a rubber tire, but still a cool effect.

You explained it very well. Can u throw some idea on sourcing of low cost Piezos for building walking beam type linear micro motor. The stroke required is 8mm in steps of 40microns with force of 40 N. Available operating voltage is 10.5 to 13.5. The walking beam should stay in position after the current is withdrawn and should sustain 20g of vibrations without changing the position. Let me know the size & sources of Piezos as also how to go about it for building a few prototypes.

That is a really cool router base you have... What model is it?

The sound it makes with the glassware on it is exactly the same sound made by the ultrasonic tool my dental hygienist uses to clean teeth.

@astronot1997

8 жыл бұрын

As far as I know most of the dentist tools are driven via pressured air turbines, they turn in very high speeds which might sound a bit high frequency which can cause the same sound like this "ultrasonic" piezo

@TiagoTiagoT

8 жыл бұрын

I believe there is one that actually makes the teeth vibrate to shake off plaque and stuff. If I'm remembering correctly, the business end is a small metal rod with a metal ball at the tip.

What happens if you touch the ring? Can you feel the movement?

How much dose a liquid in side the vessel slow it down what effect dose it have on it ?.

Ok so I might just be awful at looking for things but does anyone know where I can buy the SMD piezoelectric elements without any of the other stuff?

I wonder what ferro fluid would look like when interacting with this device

How much mass would that little motor be able rotate? Have you tried putting any liquid in the container and trying?

I'm really wanting a better way to visually reveal exactly what the interaction between the surface and the carries object looks like. But, I'm at a loss to suggest a particular technique.

Does this work with solid of different hardness. Lets say a piece of chalk or a boron carbide surface.

Should wear out fairly fast since the rotor rubs on the piezo

This is the base component in my time machine.

Is it suitable for using inside SEM chamber?

can this method be used to transfer big heavy objects across ... ?

Is the screeching sound because of the glass scraping across the top of the elements or from the actual piezo elements?

@ElizabethGreene

6 жыл бұрын

Found the answer in another comment >> It's mostly the glass. The included disc rotor is fiberglass, and it's almost silent. The stator by itself is completely inaudible.

can you explain how does this compares to "ultrasonic" focus motors found in camera lenses? like in the Canon 24-70 2.8L (or many others). it is a motor that doesn't have a hub, and doesn't seem to be magnet... but I don't think that it has to use higher voltages...

@AppliedScience

8 жыл бұрын

+Guilherme Freire I think it's basically the same thing. The camera lens may have a stator with much more customized piezoelectric parts, allowing it to work at a lower voltage. The stator may be metal, and the resonance tuning may be more precise to allow less input amplitude.

Very interesting, thanks!

Hi Ben! It's wery interesting thing! How about to make video of piezoelectric motion in your scanning microscoupe? Thats really cool idea,i think.

Any idea what the piezo smt devices are or have a part number? I'd be interested to experiment with a linear motor version.

@AppliedScience

8 жыл бұрын

+The Current Source The company sells the surface mount components at pcbmotor.com. Unfortunately, the parts are very expensive in small quantities. I'm not sure how they chose their pricing structure.

@AmRadPodcast

8 жыл бұрын

+Applied Science yeah, started searching the usual places for electronics. Nope, nada. I wonder what kind of (in stepper terms) resolution you can get out of it.

@AmRadPodcast

8 жыл бұрын

+Gregory Davill was that the squealing backlight one? Probably be tough to find a device with those undesirable characteristics. I saw a video years ago about "piezoelectric walk" but Bens video doesn't appear to be the same principle - because of the horrific ceramic on glass noise

@superdau

8 жыл бұрын

+The Current Source The parts look very much like caps. Maybe they are really just that? Ceramic caps can "sing" alot.