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A prototype system to measure the trunk angle in sagital plane
, Article Proceedings of the 8th IASTED International Conference on Biomedical Engineering, Biomed 2011, 16 February 2011 through 18 February 2011, Innsbruck ; 2011 , Pages 300-304 ; 9780889868663 (ISBN) ; Ramezanzadeh, M ; Narimani, R ; Soroush, A ; Sharif University of Technology
2011
Abstract
The most prevalent musculoskeletal condition and one of the most disabilities are caused by low back pain. In the low back pain, a large variety of evaluation tools is presented to assess the results of the treatment; therefore, it is important to measure the trunk angle in order to determine the progress during patient's treatment. In this project, we developed a low cost prototype system for flexion-extension movement to measure the angle of the trunk in sagital plane. The system consists of clothing that is stretchable; a Rubbery Ruler sensor (RRs) attached on clothing, data acquisition system. Inertial Magnetic Unit (IMU) sensor installed on spine is used to calibrate the orientation for...
Beyond pull-in stabilization of dual axis micromirrors using fuzzy controllers
, Article Proceedings of the ASME Design Engineering Technical Conference, 15 August 2010 through 18 August 2010 ; Volume 4 , August , 2010 , Pages 795-801 ; 9780791844120 (ISBN) ; Ahmadian, M. T ; Soroush, A ; Alasty, A ; Sharif University of Technology
2010
Abstract
Dual axis micromirrors are actuated using strongly nonlinear electrostatic actuation and their operating range suffers from the pull-in problem. So investigation of their dynamics and control issues has become a challenge for the researchers. The current paper makes use of fuzzy controllers for the purpose of stabilizing the dual axis micromirror at the desired tilt angles beyond pull-in. At first the dynamic model of the micromirror is presented. Then for the purpose of finding the linguistic laws governing the system behavior, several step voltages are introduced to the system. The proposed fuzzy controller consists of singleton fuzzifier, product inference engine and center average...
Development of a measuring system for shoulder abduction and adduction
, Article 2010 17th Iranian Conference of Biomedical Engineering, ICBME 2010 - Proceedings, 3 November 2010 through 4 November 2010, Isfahan ; 2010 ; 9781424474844 (ISBN) ; Soroush, A ; Narimani, R ; Hoviat Talab, M ; Parnianpour, M ; Sharif University of Technology
2010
Abstract
In the shoulder disease, a large various tools is employed to assess the results of the treatment. In this work, a new system is proposed to record abduction-adduction movement of human shoulder. The system consists of a cloth that is stretchable, two Rubbery Ruler sensors (RRs) that attached on humerus of both arms and a data acquisition system. Two Xsens sensors attached on humerus of both arms are used to calibrate the orientation for the RRs output. Moreover, we developed a low cost prototype system to measure the rotation of Yaw from 30 to 90 degrees