Optical kit encoders help surgical robots to achieve highly precise control over movements, rotations, and positioning. For such sophisticated applications, Lika Electronic has developed a full line-up of high precision optical kit encoders in an ultra-compact modular design that are perfectly suited for the needs of the full kinematic chain on a robot arm and fit the sequence of joints, from shoulder to end effectors (grippers, needles, or other tools).
AMM is a PCB-based series of rotary absolute encoders. They are designed in a range of shaft diameters ranging from 45 mm down to 6 mm (1.771” ÷ 0.236”) for direct integration into sequential joints of robotic arms. They excel in small size, low profile, minimum weight, high resolution, and the finest accuracy. They can be customized to fit virtually any package and meet specific installation requirements. The construction is frameless and bearingless, i.e. they are not equipped with shaft, bearings, flange, and housing. Rotor and stator have no moving parts, so they are wear-free and work together without making contact. The risk of failures due to vibration, shocks or mechanical stresses is extremely limited, while the lack of wear eliminates machine downtimes and maintenance. Fewer mechanical components reduce the overall footprint and the weight of the encoders as well as their cost. They rely on optical measuring principle and do not suffer magnetic interferences. They are the best choice for high-dynamics and demanding positioning applications due to very high resolution and accuracy. All encoders are equipped with LEDs for diagnostic information.