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Inexpensive physiological recording systems of didactic and practical value

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5 Author(s)
Botta, D.A. ; Lab. de Bioingenieria, Univ. Nacional de Tucuman, Argentina ; Rossi, S. ; Salvatelli, A.C. ; Valdex, G.H.
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A physiological recording system using inexpensive elements was designed and built by a group of bioengineering students. Three consecutive stages were developed over a 26-week physiology course period: a single-channel mechanical recorder (for myograms), implemented with a long, very light wooden dowel and an arrangement of pulleys and levers; a two-channel recorder (mechanical and electrical), using an inductive proximity transducer; and a digital data acquisition and display using an A/D converter, a commodore 128, and the GRAPHICS 1 software with a Joystick. The instrument showed good performance for teaching purposes, generating enthusiasm and motivation in the students

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Education, IEEE Transactions on  (Volume:35 ,  Issue: 1 )