Induction proximity switches are used commonly as presence detectors. Commercially available devices are robust, inexpensive, and immune to noisy electrical environments, while generating negligible free-field radiative power to disrupt other equipment. These devices are generally used only in switching applications. This project extends the capability of present devices by adding capabilities for sensing target range and material composition. Furthermore, by utilizing a digital rather than analog approach to device operation, the useful range is also extended. This enables the device to be smaller for a given range. Incorporating an intelligent processor within the unit allows diagnostics at the sensor, target, and application levels. By designing appropriate targets with different materials, target identification is also possible. Combinations of sensor elements enable three-dimensional measurements, including rotation. These improvements are beneficial to the positioning and control of remote robot arms. The digital proximity sensor is applicable to internal use within the robot or, externally, to sense alignment of robotic operations.The digital proximity sensor can be applied to measure metal thickness and position in strip mills, to robotic position control of automotive assembly equipment, and as a guidance alignment sensor for docking and positioning of unmanned vehicles and robots. Coupled with a mechanical target assembly, it can measure force, torque, and grip of robot actuators.sensors, proximity, inductions, intelligent, position, roboticsSTATUS: Phase I Only
