FREQUENCY CHARACTERISTICS OF A PNEUMATIC VALVE-CONTROLLED ASYMMETRIC CYLINDER

Pneumatic Tactile Display Controlled by a Miniaturised Proportional Valve

In minimally invasive surgery, tactile feedback is lacking. A tactile display, consisting of a matrix of micro-actuators, represents tactile sensations on the fingertip. Miniaturising powerful, dynamic and accurate actuators with a sufficient stroke and bandwidth is a considerable challenge. The use of pneumatics is promising due to the potential for high power density. This paper discusses a p...

Designed pneumatic valve actuators for controlled droplet breakup and generation.

The dynamic breakup of emulsion droplets was demonstrated in double-layered microfluidic devices equipped with designed pneumatic actuators. Uniform emulsion droplets, produced by shearing at a T-junction, were broken into smaller droplets when they passed downstream through constrictions formed by a pneumatically actuated valve in the upper control layer. The valve-assisted droplet breakup was...

Model-based force and position tracking control of an asymmetric cylinder with a digital hydraulic valve

Pneumatic Cylinder Control Pid for Manipulator Robot

This work shows a controller development for cylinder penumatic, that due to compressibility air characteristics, present a non linear behavior. Is including the develop of PID, discreete PID and Fuzzy Logic approximation, as solution to the problem. The work is part of a major project of Flexible Manipulator Robot, with dielectrics characteristics, for cleaning of porcelain isolators of high v...

Design of Upper Limb Assistive Device Using a Pneumatic Cylinder

This paper describes the design of a device to support a patient’s upper limb motion. For safety, light weight, and flexibility, it uses a pneumatic cylinder for which the optimum arrangement is presented. This independencesupporting device has two modes corresponding to livelihood support and rehabilitation. Based on human motion, a compliance control system and a position control system are d...