Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [solenoid]

An electromagnet combined with an actuator to convert electrical energy into linear physical motion.

630 questions
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changing direction of solenoid

note I know essentially nothing about solenoids I brought this solenoid thinking that I could use it to hit an object, but when I put it to a power supply, the only direction that it would go is down. I tried changing the direction of the current…
manoli
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Solenoid Driving Circuit

I'm trying to drive a 12v (14W) solenoid and have problems figuring out the components for the driving circuit. The solenoid draws about 1.166A and the MCU is being operated at 3.3V. I've seen many driving circuits and they all look something like…
ecr
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Solenoid fastest possible release - for how long should reversed polarity be applied?

If I understand correctly, a regular solenoid like this one does not have a permanent magnet as core and as such it doesn't matter with what polarity it is activated (please correct me if that's wrong). Since the current in the winding takes some…
matthias_buehlmann
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How much force does a solenoid really have?

This hopefully isn't too off topic for this forum, but here goes: after many days of tinkering I managed to get a circuit working that, in the end, energizes a solenoid to pull a lever. Sadly, even though the solenoid became energized and pulled its…
NickRamirez
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From what used/junk equipment can I salvage solenoids from?

I have a few old 24V solenoids which I've used for years for random (often Halloween-related) projects. I can't recall where I got them. I'd like to get some more, but new ones can be rather high priced. I sometimes buy junk printers to salvage…
JYelton
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Long solenoid (50cm stroke)

I need to move a rod with a 50cm stroke. Almost no force is needed(the rod is just for display purposes). Speed is also not essential. I was thinking of creating a very long DC solenoid but I am worried because I've never heard of such a solenoid.…
Avogado
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How to make a solenoid armature travel at a faster rate of speed?

My project requires a solenoid with a stroke of 15mm and the travel speed must be 15mm in 2ms. What can be done to get higher speed of travel in the armature?
Donald Wehmeyer
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Torus shaped solenoid

I need to use one of those for an experiment (a solenoid with the shape of a torus). Unfortunately, as you can see, I don't know the appropriate name for it. I have built myself a temporary one but I'd much rather buy an industrial-made one to be…
Hadron
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Solenoid Actuation Circuit for Hocky Robot - High speed, Maximum force

I am working with students designing and building small competition robots. We have done quite well but I am having trouble with the design of a circuit to actuate a solenoid to quickly launch a 4 inch hockey puck. We are currently using an ESP to…
jayj
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Can I use a 12 V solenoid valve directly connected with a 12 V battery?

Can I connect a 12V solenoid valve directly to a 12V battery?
koko htike
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Actuating a solenoid through a capacitor

I would like to actuate a latching solenoid through the following circuit: simulate this circuit – Schematic created using CircuitLab A capacitor is charged over a resistor. When this operation is completed, the switch changes position and the…
vina
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Solenoid Kinetic Energy

I found this solenoid on Sparkfun (https://www.sparkfun.com/datasheets/Robotics/ZHO-1364S-36A13.pdf) and according to the datasheet it is able to provide a force between 36N and 5N depending on the current travel position (see page 3). I…
mxcd
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How to "spread linearly" the force of a solenoid

For a pet project of mine, I'm interested in finding a tubular solenoid which force is spread linearly over a longer length. The project is based on IA and uses a programmed controller (and sensors) to feed several solenoids (the question is for one…
Déjà vu
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Alter Solenoid Stroke

I am looking into using push type solenoids to push microwave touch pad buttons. I understand that the force a solenoid exerts is dependent on stroke length. One site I was looking at listed two different stroke lengths for the same product…
user46588
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Determining the number of turns for a solenoid

I am trying to determine the number of turns that is required in a solenoid to cause it to move an armature inside. From what I understand the greater the B the more force that it can produce on the armature. To increase B I know that I can…
subz
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