Overview of solutions used in rehabilitation devices using muscles and pneumatic actuators

Żyłka, Marta; Żyłka, Wojciech

doi:10.5604/01.3001.0014.7532

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…Measurement of displacement of the piston rods of the actuators (Fig. 1) was performed using a potentiometric position transducer (10,11). The measurements of the experimental study were collected and archived via USB 231.…”

Section: Methodsmentioning

confidence: 99%

“…These units are electrically controlled by power modules (15,16). Near the piston rods of the pneumatic cylinders, there are potentiometric position transducers (10,11), which are mechanically coupled to the piston rods of the cylinders (1, 2).…”

Section: Construction Of the Control Systemmentioning

confidence: 99%

“…Voltage signals (Fig. 2) from potentiometric position transducers (10,11) are transmitted to the inputs of the A/C converter of the microcontroller ( 14), which acts as the controller of the entire system. The signal paths of potentiometric sensors are equipped with properly selected filters eliminating interference.…”

Section: Construction Of the Control Systemmentioning

confidence: 99%

“…Pneumatic muscles [9][10][11] are also used in rehabilitation devices. Pneumatic drives are used in rehabilitation robots [12] due to force control through proper pressure regulation in the actuator cylinder chambers, and also because of the safety of the drives [13].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Original System for Controlling the Speed of Movement of Pneumatic Drives in Rehabilitation Devices

Żyłka¹,

Żyłka²,

Szczerba³

et al. 2023

Adv. Sci. Technol. Res. J.

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The aim of the article is to present an original method of speed control and simultaneous stroke of the piston rods of two pneumatic cylinders using potentiometric position transducers, pneumatic solenoid valves, properly scaled throttle-check valves, solenoid valves and a microcontroller with power modules for solenoid valves. Initial experimental studies of the control system for simultaneous displacement of two piston rods of pneumatic actuators were carried out. The purpose of the research was to obtain the characteristics of the displacement of the extension of two pneumatic drives. The obtained results were analyzed. The results of the measurements confirmed the possibility of applying the presented control to rehabilitation devices for passive exercises of the lower extremities. The advantage of the proposed control system is its reaction speed, which is a response to changes in operating conditions of a given actuator, such as: external disturbances, own resistance of the controlled device, frictional resistance or movement caused by the patient exercising on the rehabilitation device moved by these actuators.

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Section: Methodsmentioning

confidence: 99%