May 8, 2007 - To determine position values, Posital's Magnetcode (MCD) encoder series uses an integrated Hall circuit, which samples the magnetic field of a permanent magnet fixed to a shaft. This single-turn sensor provides a maximum resolution of 12 Bits per revolution. At the same time, MCD encoders register up to 8,192 revolutions (13 Bit) – models with a higher capacity are available upon request. Current absolute position values are stored permanently, even without external power supply, and are provided instantly after activation, using an innovative, patented technology, which renders backup batteries obsolete. The MCD encoder’s internal component is a Wiegand wire with a coil wound around it.
The Wiegand wire generates the energy required for registering revolutions from the rotary motion – neither continuous rotation nor a minimum number of revolutions are necessary. MCD encoders are available as solid and hollow shaft versions. Their compact design (36,5 mm diameter) makes them suitable for applications with limited installation space and reduces material costs considerably. Because of their magnetic technology, the IP54 encoders also withstand rugged environments. They are connected via a serial interface.
