A New Potentiometer-Based Goniometer Design in Joint Angle Measurement

Document Type : Original Article


1 Department of Electrical Engineering, K.N.Toosi University of Technology, Tehran, Iran

2 Department of Electrical and Computer Engineering, Yazd University, Yazd, Iran


Measuring the joint angle with a high accuracy is important to clinicians in diagnosing and treating musculoskeletal disorders. In this work, we aim to measure the angle of the elbow joint of a patient in a medical application deploying an exoskeletal linkage method. Toward this goal, we propose and implement a new goniometer that is simple enough to be manufactured by state-of-the-art AVR microcontroller devices in which eventually results in a high degree of accuracy and comfort ability. To overcome the problems on installation methods, a unique physical design is used that results in a high degree of wearability and comfortability with the joint structure. In addition, the proposed technique benefits from the real time data access through the USB port that helps ambulatory experiments to be performed easily.


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