galvanometer, loudspers and microesspon (1 Viewer)

[mdecarne]

hey, im doing an assesment that requires research on galvanometers, loudspers and microesspones, it is an interactive poster and must have interactive elements,
I was wondering if anyone had some ideas for making simple working modles that show how they function?
thankyou heaps

 

[ianc]

this sounds suspiciously like a last minute assessment task ........
You can do something with a styrofoam cup and some coils of wire to make a speaker....something like this(http://cse.ssl.berkeley.edu/lessons/indiv/regan/speakerlab.html). Our teacher did it once in front of the class and it worked okay

you will probably have to google for a better design

good luck with it!

 

[mdecarne]

its due in two weeks or so, but yeah anyway thanx for that site it gave me some good ideas, cheers

 

[alcalder]

You might like to try the How Stuff Works website

http://electronics.howstuffworks.com/speaker.htm
http://electronics.howstuffworks.com/question309.htm
There was no galvanometer.

Or this for a model loudspeaker:
http://www.practicalphysics.org/go/Experiment_336.html
Galvanometer
http://www.practicalphysics.org/go/Experiment_317.html

Hope that helps.

 

[mokeman]

hey
just wonderin if u could post some pictures/diagrams of the cup speaker... sounds a bit simpler to make
im doin the same assessment as decarne
thanks