RFID-Based Rotary Position Sensor

Innovators have developed an RFID-based system for sensing the angular position of rotating systems. The RFID-Based Rotary Position Sensor can be used as a position/orientation sensor or implemented in a controller to interpolate and refine the rotation angle of a rotating system. The sensor is part of a suite of RFID-based technologies developed to monitor and manage inventory based on passive RFID sensors. NASA's RFID sensors can wirelessly track either bulk levels or discrete quantities of materials within a container without having to attach RFID tags to each item.