Title :
Fiber optic sensor for joint angle measurement
Author :
Patil, Madhavi M. ; Prohaska, Otto
Author_Institution :
Dept. of Biomed. Eng., Case Western Reserve Univ., Cleveland, OH, USA
Abstract :
Miniaturized joint-angle sensors are required, among other applications, for neuromuscular stimulation prosthetic systems, in order to determine the finger position and provide feedback control. A fiber-optic transducer design for this purpose is proposed. Light passing through a joint between two fibers undergoes intensity modulation due to the angular misalignment between them. This intensity change, recorded as a voltage change by a photodiode, is then used as a measure of the joint angle of the finger on which the sensor is placed.<>
Keywords :
angular measurement; biomechanics; fibre optic sensors; prosthetics; angular misalignment; feedback control; fiber-optic transducer design; fibre optic sensor; finger position; intensity modulation; joint angle measurement; neuromuscular stimulation prosthetic systems; photodiode; voltage change;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95055
