- #1
bison_bloke
- 4
- 0
Hey, I'm wondering if a short solenoid (50mm) would be able to pull a 300mm core through it if it was open at both ends? Or would the soleniod stop acting once the core had come to the far side?
I've attached a pic of what I'm trying to do (forgive the paint drawring).
I'm basically trying to have a solenoid that I can control the position of by varing the voltage (by pwm).
1.) Can anyone tell me if this won't work?
2.) Where can I get some basic info on how to calculate the force I'll get out of it? I looked here: www. ledex.com/basics/basics.html but it wasn't amazingly helpful for formulas, and I can't seem to find any on this site.
3.)The page I referenced in 2.) said that
Thanks heaps for any help, these forums are fantastic.
Phil.
I've attached a pic of what I'm trying to do (forgive the paint drawring).
I'm basically trying to have a solenoid that I can control the position of by varing the voltage (by pwm).
1.) Can anyone tell me if this won't work?
2.) Where can I get some basic info on how to calculate the force I'll get out of it? I looked here: www. ledex.com/basics/basics.html but it wasn't amazingly helpful for formulas, and I can't seem to find any on this site.
3.)The page I referenced in 2.) said that
does this mean that a tapered core would provide more force as it got thicker? What does it mean that the effective air gap changes to become a fraction of the actual stroke? Does the air gap have a relationship to the stroke that can be achieved?In linear solenoids, force can be modified by the shape of the plunger used. A conical face plunger is used for medium to long stroke applications. The effective air gap changes to become a fraction of actual stroke. Flat face plungers are used for short stroke applications. Stepped conical face plungers can provide various stroke (medium to long) dependent on the angle of the step. These are advantageous for high holding force requirements.
Thanks heaps for any help, these forums are fantastic.
Phil.