All Questions
Tagged with solenoid electromagnetic
15
questions
4
votes
4
answers
1k
views
Can a slanted magnetic field be created with this insulated stranded wire arrangement?
I am considering building a small-scale experimental coil gun because I have an idea of how a magnetized projectile could be rotated while it is traveling through the coil(s), similar to how a bullet ...
- 173
1
vote
1
answer
228
views
Designing AC kick solenoid lock
I am making a kick solenoid lock with AC.
I designed the circuit to run on 220 V, 50 Hz (household plug.)
The inductor (coil) is air core
500 turns, 150 meter (500 ft) in length with inductive ...
- 69
3
votes
2
answers
889
views
Calculating the capacitance of solenoid
I am working on a project where I need to create a fairly strong magnetic field (15~30 mT) with a solenoid. I realized it is not so easy to create a strong electromagnet. The solenoid is 6.5 cm long, ~...
0
votes
1
answer
135
views
Unlatch a bi-directional latch when power is lost?
I need to design a feature for a system running on DC power that consists of a bi-directional actuated latch pin that instantaneously engages (extends) and disengages (retracts) via user command. A ...
- 3
0
votes
1
answer
1k
views
Need a solenoid to pull a Nerf Gun trigger
I'm looking for a solenoid that be used to pull the trigger of a Nerf gun. Using a strain gauge I determined that you need about 1 kg of force to pull the trigger, and the travel of the trigger is ...
- 115
0
votes
0
answers
177
views
How to create optimal solenoid actuator
I would like to create a solenoid like this one:
It should be powered by 5V and of course I want it to take as little current as possible. I know it will probably still take a current of around 0.75, ...
- 101
1
vote
2
answers
1k
views
How can we calculate the force of attraction between a coil and a ferromagnetic object?
As the question states I’m trying to figure out how I can calculate the force of attraction between the magnetic field of a solenoid (coil) and a ferromagnetic object. I suppose we should somehow ...
user234225
0
votes
1
answer
93
views
Create a continous variable force on object
I have a component that I need to press to another component with ideally max 200 Newton of force. I want to be able to to control this force. E.g I should be able to have half the force or 1/10 the ...
- 215
0
votes
0
answers
266
views
Steel vs iron for linear solenoid plunger
How much more force would an iron plunger provide than a steel plunger? From what I’ve read it seems like it would be much better, but I have no idea where to buy an iron rod.
Also, how much of an ...
2
votes
3
answers
5k
views
The role of solenoid's wire diameter?
I'm not an expert in the electromagnetic field and need to design a solenoid actuator with 1 kg force approx. I am wondering if I change the wire diameter of the coil, what happens in solenoid's ...
- 107
3
votes
1
answer
685
views
0.5 tesla solenoid
Alright, I am supposed to make a solenoid (water cooled) having 0.5 T field at the center. The solenoid should be ideal so we are supposed to make the length of solenoid quite large as compared to the ...
0
votes
1
answer
308
views
Electromagnet flux density calculation knowing specs of coil, core and applied voltage?
Seems to be almost a textbook task from a freshmen class. But I am truly puzzled.
Electromagnet has a coil of tightly wound 100 turns of copper wire around a cylinder core with relative permeability ...
- 364
0
votes
0
answers
272
views
How to build a 15,000 Gauss hand-held electromagnet
I'm wondering if it's possible to build a small hand-held electromagnet shaped like a solenoid that is possible of producing a field of 15,000 Gauss.
I'm familiar with the formula for the strength ...
user179494
0
votes
3
answers
193
views
How to calculate net force from a Lorentz Force Density in Magnets
Consider a pair of solenoid magnets as shown in the figure. Based on the magnetic field (B) at each point and corresponding Current Density, (J), I can calculate the Lorentz Force density at each ...
0
votes
1
answer
2k
views
Open electronic lock with EMP [closed]
Would be possible open a electronic lock, like that used in door, through induction using an EMP device?
- 49