Actuators, Part II
Fred Donelson
Kevin McKone
A second actuator that is often
used is known as a solenoid
It moves a rod by electromagnetic
energy
Click on the link below to learn the
basics on how a solenoid works:
http://www.youtube.com/watch?feature=endsc
reen&NR=1&v=hsoggQOoG4s
Finally, we sometimes use the
pressure of fluids to move objects
When we use a gas as the fluid, we
call it a pneumatics system
When we
use liquid as
the fluid, we
call it a
hydraulics
system
Comparing Electrical and Fluid Actuators
A simple hydraulic system can be made
out of syringes and aquarium tubing
A simple ROV with a hydraulic actuator
Click the two links below to see some
simple but effective hydraulic systems
in action:
http://www.youtube.com/watch?v=VFje0G69ku
8&feature=related
http://www.youtube.com/watch?feature=endsc
reen&v=vsF95qA1x7I&NR=1
For ideas on building a linear
actuator with a motor and some
PVC, check out this link:
http://blog.davidjbarnes.com/2009/03/ma
king-linear-actuator-for-robots.html
So … go have some fun and build
yourself an actuator!!