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Using disk drive motors (3530 words) |
 | Disk drive stepper motor can be used as freely rotating motor quite easily by using the stepper motoro controller from the disk drive. |
| Disk drive stepper motors consist two coils which move the motor to the desired direction when a current is applied to those coils in correct order. |
| The only difference to disk drive system is that the disk drive electronics can buffer the movement signals, so that the controller stores the movement pulses and executes the muvement after the controller has received the last movement pulse. |
| ' + pPage + ' (20439 words) |
| Purely optical disk drives often are used as a secondary form of storage, but the computer to which they are connected is likely to use a magnetic storage medium for primary disk storage. |
| Data on a disk is read by passing the head back over the surface of the disk; as the head encounters changes in the stored magnetic field, it generates a weak electrical current that indicates the presence or absence of flux transitions in the originally recorded signal. |
| When the drive is commanded to move the heads to a specific cylinder, the internal drive electronics use the signals received by the servo head to determine the position of the heads. |
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