So the coats of carbon get charged and attract each other as a result of the electric force, squeezing the elastomer and thus stretching it in the process? Am I understanding this correctly?
Jack Hutton so you are saying there is no power supply connected to the red and black alligator clips? You’re saying there is no electrical current flowing to the device?
@@ThexBorg no, its acting like a capacitor so you have to charge the "plates" with a high voltage , and there will be a small amperage due to energy loss
@@ThexBorg He is using 5.5 KV (see the website linked). It acts as a capacitor so very minimal power draw at low actuation frequency (here it looks like the cycle time is 2s so a frequency of 0.5Hz). If you can't get a number for the AMPs used from the creator of the video and you really need to calculate the power draw, you can estimate the young's modulus / or spring stiffness of the acrilic membrane and mulitply it by the distance moved/deformation to get the equivalent work. That equivalent work over the time it takes to do one cycle (~2s) will be the power requirement which is the same as V*I, and you know V is 5.5KV so you can calculate 'I'. Not worth the effort in my opinion because at these low actuation frequencies the 'I' will be super small.
Hi, Can you please let me know. Its usage, industry and applications? Where it is currently used and which are its possible applications? I am not able to relate it to any real life application. Thank you
There's nothing like adding the tune to "Mac the Knife" played on a kid's toy piano, to set the mood of a video about a dielectric actuator.
Cool! Thanks!
the music 😁👍
That Actuator reminds me of the Human Ear drum.
is it possible to simulate at low voltage? or need to change the material(carbon) to achieve low voltage actuation?
Where do you get the elastomer?
Oh wait, that’s literally just 3M VHB tape like I have in my garage. Neat!
@@multiplysixbynine does the tape work?
@@mydarktemptations7655 yes, but no
It is ac or dc?
DC. He manually modulated the voltage to show some changes.
Nice demonstration!
May I ask what is the elastomer sheet used in the video? Where can I buy that? Thank you!
I think it's 3M vhb
@@johnacsyen Thanks for your answer. But 3M vhbs are usually packaged in red.
Yes, red backing for 3M, see here, ruclips.net/video/uw8FLgiXsmk/видео.html
@@johnacsyen Another nice demonstration, thanks for sharing!
We are using VHB4910J by 3M. You can check other details of materials here-> opensoftmachines.com/2018/02/dea/
Imagine a camera aperture using this, or an animatronic’s eyeball. (And maybe both in a robot.)
So the coats of carbon get charged and attract each other as a result of the electric force, squeezing the elastomer and thus stretching it in the process? Am I understanding this correctly?
Hello,
May I ask, what amperage are you applying to the actuator [at 5.5 kv]?
None , material is acting like a capacitor, its not a complete circuit
Jack Hutton so you are saying there is no power supply connected to the red and black alligator clips? You’re saying there is no electrical current flowing to the device?
@@ThexBorg no, its acting like a capacitor so you have to charge the "plates" with a high voltage , and there will be a small amperage due to energy loss
Jack Hutton yes... and that is exactly my question... what the amps and voltage combination is to charge the plate?
@@ThexBorg He is using 5.5 KV (see the website linked). It acts as a capacitor so very minimal power draw at low actuation frequency (here it looks like the cycle time is 2s so a frequency of 0.5Hz). If you can't get a number for the AMPs used from the creator of the video and you really need to calculate the power draw, you can estimate the young's modulus / or spring stiffness of the acrilic membrane and mulitply it by the distance moved/deformation to get the equivalent work. That equivalent work over the time it takes to do one cycle (~2s) will be the power requirement which is the same as V*I, and you know V is 5.5KV so you can calculate 'I'. Not worth the effort in my opinion because at these low actuation frequencies the 'I' will be super small.
Hi,
Can you please let me know. Its usage, industry and applications? Where it is currently used and which are its possible applications? I am not able to relate it to any real life application.
Thank you
Sorry I am a bit late for the game. I have a question if someone can help please. Where do I get elastomer sheets from? any ideas?