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Vol. 138, No. 3, March 2012, pp. 35-49

 

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Virtual Instrumentation with Application in Multiaxial Extensometric Force Platform

 

André Guimarães OLIVEIRA and Alexandre BALBINOT

Instrumentation Laboratory (IEE)

Electrical Engineering Department (DELET)

Federal University of Rio Grande do Sul (UFRGS) – Avenue Osvaldo Aranha,
103 - 203, Porto Alegre, 90035-190, Brazil

Tel.: +550215133084440

E-mail: paladinox@gmail.com, alexandre.balbinot@ufrgs.br

 

 

Received: 17 January 2012   /Accepted: 20 March 2012   /Published: 31 March 2012

Digital Sensors and Sensor Sysstems

 

Abstract: This paper presents the development of an experimental system to measure the forces involved in a 3D force platform that supports up to 1000N in its vertical axis. Experimental data were compared with simulated data using finite elements method (FEM). Data acquisition and processing were performed using LabView software with USB6008 data acquisition board from National Instruments. Results showed a linearity error of 0.49 % on the vertical axis, revealing the smooth functioning of the system. Found deformations in the load cells were compared with the simulated model, showing a difference of 5.8 % at most.

 

Keywords: Load cell, Force platform, Strain-gages, LabVIEW

 

 

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