GMR - Multiturn
How To Substantially Reduce Encoder Cost While Gaining Functionality With Multi-Turn Rotary Position Sensors.
Many applications require rotation counters that can measure angles greater than 360º. However the low-cost 10-turn potentiometers most design engineers are familiar with can’t always meet user requirements for resolution and reliability. As an alternative, optical absolute encoders are too expensive for many applications. These solutions require a continuous power supply or they will lose count when power is restored. Also, geared
technology/rotation counters are subject to significant wear. Novotechnik’s new 2800 Series multi-turn rotary sensors address this unfilled customer need. These are the the first rotation counters to be based on Novotechnik’s patented NOVOTURN™ technology – built on an enhanced giant magnetic resistance effect. They provide substantial cost savings compared to optical encoders, maintain reliability and accuracy, plus they offer additional useful features.