A feed-back positioning system embedded in the platters and needed to help the magnetic head to evaluate its current position.
Little box with a moving arm, which moves control surfaces on the plane.
device acting as a relay, normally augmenting pilot input to move a control surface or similar
A device that can turn a lever arm one way or the other with many points between the two extremes. These adjust all the control points of a R/C vehicle.
control system that converts a small mechanical motion into one requiring much greater power; may include a negative feedback system
a device which controls the angle of a piece of machinery
a generic term used for an automatic control system
a mechanical output device
a motor that can be stopped anywhere you want it, with no "detents" either needed or present
a motor that can run just as effectivly in both clockwise and anticlockwise direction, it has an encoder attached to track its movement
a motor that is attached to a position feedback device
a multi-function device employed by Gary Seven , that resembled a pen
an electromechanical device which uses feedback to provide precise starts and stops for such functions as motors
an integrated package which contains a motor, gears, and control circuitry
a small electric motor connected to a geared transmission
a small motor with a small control arm
A system that detects any deviation in performance of a device from an ideal and makes adjustments to bring performance into line with the ideal.
A power-driven mechanism that automatically controls the performance of a machine.
A device for increasing the normal effort applied to a control.
small mechanical motors used for controlling the speed and steering of an rc car or truck
A motor-driven device for moving controls of a radio controlled aeroplane.
Any system used to assist a mechanism to operate with greater force than that initially applied to it.
This is a term used to describe the electronic control systems of the VCR which keep the head and capstan motors running in correct synchronisation.
Servos are the parts of a R/C system that moves the control surfaces in response to movement on the transmitter 'sticks'. Each servo has a small motor and gears to give the motor some mechanical strength to move each control surface. Servos have a certain amount of torque (strength) that is generally proportional to their size or cost (i.e. the bigger [or more expensive] the servo, the stronger). Servos come in all kinds of sizes and strengths and weight. You should choose the right servo for the right plane. For handlaunch sailplanes, small, lightweight servos are the right choice. For combat, strong servos are best, but cheap, standard servos are probably the right choice as if you break a cheap servo, you just won't mind as much. Click Servos to read about servo wiring or Servo Chart for a comparison of most readily available servos.
An electromagnetic component of the radio control system that converts the electrical pulses into movement.
A system consisting of several devices which continuously monitor actual information (position, velocity), compares those values to desired outcome and makes necessary corrections to minimize that difference.
A drive motor wherein an electromagnetic coil built is around stationary magnets. The coil to which the head arm is attached, moves between the permanent magnets when current is applied. The position in this type of voice-coil drive is feedback-controlled, which results in highly reliable head positioning over narrow, closely spaced tracks.
A motor with a controller that allows its speed and position to be programmed.
The electro-mechanical device which moves the control surfaces or throttle of the airplane according to commands from the receiver. The radio device which does the physical work inside the airplane.
A device which translates electrical signals from the receiver into useful mechanical output to move controls. The power of a typical servo might be expressed as 3.2Kg/cm at 0.23secs/60º. In the case of such a servo this means that it would take 0.23 seconds to move the servo arm through 60º with a load of 3.2Kg linked to the hole in the servo arm which is 1cm from the centre of the servo output shaft. As the distance from the centre of the servo output shaft increases then the maximum rated load decreases proportionally. The servo supply voltage [4.8v or 6.0v] affects the speed and power capabilities.
an electromagnetic device that moves the control surfaces and is controlled by the electrical impulses from the receiver.
When a controller changes a process variable to move the process variable in response to a setpoint change, it is called a servo.
This is the unit that actually does the physical work inside your vehicle. A servo contains a small motor that, when activated by commands from the transmitter, moves the control linkages for steering, throttle and brakes. Some vehicles with 3-channel radios have a third servo to activate other functions, such as reverse or shifting of gears.
a closed-loop control system used to adjust head position and/or tape speed