How Can I Control Motor Angles in a Satellite Project?

[Em Jay]

hi every body ..hop u are diong well



in this smsiter i am taking a control subject ,,and there project is required from us ..

i have an idea ..and that's is the head of the topic ,,little satellite ...


wat in mind now that i must get two motors and have to design the circuit to control them ..

but there one thing that i havn't took it yet ..

i didn't take amachine subject and it's for 4th level and i am still in 3rd level


somthing in motors call feed back ..and from this word meaning i wonder

how can i stop the motors at a point i mean an angle how can i stop it at a given angle

i think it's by feed back information to the motor but ?how ?


please need ur help in this

 

[Em Jay]

is there anyone ?

 

[Em Jay]

i don't know why havn't i been responce but wat i am looking for
is not complecated..it's just a project of two motors ..

to make it simple ..imagin like u are dailing with sphirical coordinates ..

and use the 2 dimintion ,,the angles

i just need is there any way i can control the motors ..to stop and 2 angles i give it to the circuit

 

[sirius0]

Perhaps this http://en.wikipedia.org/wiki/Stepper_motor" link will help?