Absolute Position Sensors: What You Need to Know Absolute vs. Incremental Sensors Absolute position sensors differ significantly from incremental sensors. Many engineers mistakenly believe they are using absolute position sensors when, in reality, they have been using incremental sensors. An incremental position sensor implies a change in position. It needs a reference point in order to start measuring. On the other hand, an absolute position sensor provides positional feedback within a given scale or range without the need for a reference point. In other words, it has a static reference point. Absolute encoders, whether optical or magnetic, are ideal in situations where speed and position accuracy and fail tolerance are absolute musts. Why Choose an Absolute Position Sensor Over Incremental? With an absolute rotary position sensor, the device determines the absolute position immediately upon power-up, no reference mark required. Many engineers recognize that absolute rotary position sensors offer better performance, better precision, and lower overall costs. Netzer Precision incorporates high-performance Electric Encoder technology into its portfolio, offering both absolute and incremental sensor options. These can feature either analog or digital outputs. The patented Electric Encoder technology operates without physical contact, relying on the interaction between a shielded, space/time modulated electric field and the measured displacement. . Originally engineered for rugged environments, this absolute position sensor technology is now utilized across diverse sectors, including aerospace, homeland security, military, defense, harsh environment, industrial automation, automotive, and robotics Do you want to know which absolute rotary encoder best suits your application? Contact our engineers for further information.
