micro motors - FAULHABER - DC Motors & Micro Drive Systems
a high efficiency of up to 80%. The motors used on all three spindles of the positioning system have a diameter of 26 mm and micro motors micro motors - FAULHABER - DC Motors & Micro Drive Systems are only 42 mm long;
at speeds of up to 6,000 rpm
they provide a Micro and Miniature Stepper Motors power output of 23.2 W. Fig. 2 Fig. 3 Motor, gearhead, and pulse encoder – a compact unit In
the application described above the motors were combined micro motors with two-stage planetary gearheads that have a ratio of 16:1.
Flanged to the end of the motor, their performance is
extremely impressive, not only due to their
compact design but also because of their steady running and durability. Gearhead backlash was optimized for use on the positioning system. Instead of
micro motors the values of about 1 degree, customary on standard gearheads, these planetary gearheads have a backlash of only 12 angular minutes, measured at the output shaft.
Knowing the actual position of micro motors the motors is an essential prerequisite for precision positioning. With the positioning systems employed on the LBT it is detected micro motors at each motor by an optical pulse encoder that generates 500 pulses per revolution. Using a metal disk, a transmitted-light system generates two phase quadrature output signals. The index pulse micro motors is synchronized with output B (fig. 4). For each of the three channels there are inverted complementary signals. The pulse encoder is fitted to the free end of the motor shaft and fixed with three screws. Supply voltage for the pulse encoder and the miniature DC motor and the output signals are connected via a ribbon cable and a 10-pin connector. Since the drive units, comprised of the motor, gearhead, and pulse encoder, are extremely compact, they are easy to integrate into three-axis positioning systems. Miniaturized motion control technology thus plays an instrumental role in enabling the LBT to open up a new dimension in astronomical research.
The new drive-in cinema
Microdrives for in-car entertainment
Mobility is all the rage. This even applies to pioneering entertainment and information devices, which are currently taking the automotive world by storm. Vehicle owners want to enjoy the same electronic lifestyle gadgets on the road as they do at home. Innovative multimedia products tailor-made for automotive use herald the dawn of a new era in on-board entertainment.
ClearLine, a pioneering company based in the southern German town of Wurmberg, has been driving the trend towards in-car entertainment for many years. Committed to excellence, it has established itself as a high-end supplier of premium media solutions for motor vehicles – both in Germany and abroad. Micro-drive technology has played a prominent role in the company’s success.
Fig 1
The technical wizardry developed by ClearLine includes super-flat adjustable TFT/LCD displays with screen sizes of 8 to 17 inches. They are particularly suited to instrument panel (Fig 1) or overhead applications (Fig 2). What’s more, they meet the highest standards both aesthetically and technically.
Equipped with miniature motors, the high-resolution flat screens are designed to harmonise perfectly with the relevant vehicle interior.
The automatic opening and closing mechanism is highly sophisticated, requiring a drive system that is equal to the challenge.
Power and reliability: compact combination of miniature motor and gears
One of the key requirements of the drives is their ability to
micro motors gearbox miniature motors stepper brushless dc servomotors stepping motors dc motors micro drive system micro drive integrated encoder
