[RCSE] servos...digital vs analog
The biggest servos I know of are those that keep the modern type of windmill pointing into the wind. They too have problem with deadband logic. To save the motors from constantly adjusting the windmills direction they simply lock up the shaft (by the help of a really big disc brake) till the error between rotor direction and wind becomes too great (there is a time factor, so corrections are not carried out instantly, thus again saving the servo motor. Maybe this could be applied to model airplane servos - mechanical brake locking the surface till the pilot wiggles his sticks? Tord S Eriksson www.tord.nu RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
RE: [RCSE] servos...digital vs analog
Arne, Most of the new helicopter gyros have an option to drive servos at a high frame rate [250-270hz] and I can tell you that a standard analog and some digital servos will self destruct when driven at the high rate. More than a few heli pilots have done this either by accident or as you suggest as an expensive experiment; loosing yaw control on a heli makes it very difficult to land safely :( It's not that easy. Kerry what happens when you pulse the analog servo at 300hz? it should have all the advantages of the digital servo except the programmability. but will the more frequent pulsing cause any trouble like overheating of the servo or smth? RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
