Journal
SENSORS AND ACTUATORS A-PHYSICAL
Volume 365, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2023.114857
Keywords
Robot; Robotic gripper; Robotic grasping; Capacitive proximity skin; Non-contact measurement
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A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
Handling liquid-filled containers is a frequently encountered yet challenging task for robotics. In this paper, a novel capacitive proximity skin was developed to measure liquid levels before grasping, improving the performance of robotics in application areas like domestic service, manufacturing, healthcare, and food processing. This capacitive proximity skin features a flexible structure that is readily adaptable to a variety of grippers, and it seamlessly integrates with Robot Operating System (ROS)-based control systems. Experiments were performed to compare this proximity skin against non-flexible capacitive proximity sensors, focusing on detection frequency and working distance. The results showed that the capacitive proximity skin achieved data-lossless detection in 0.08 s (12.5 Hz) and contactless measurement of liquid level within 0.7 cm, making it highly suitable for grasping operations. This capacitive proximity skin offers as a versatile solution for robotic applications that involve unsealed liquid-filled containers, and it has the potential for application across a wide range of industries.
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