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The paper addresses the development of an electromagnetic brake control and data capture of torque and rotation, using a graphical interface implemented in LabVIEW for evaluating the performance of internal combustion engines. To control the electromagnetic brake is used like a SMPS Buck, and programming interface developed in LabView is responsible for generating the pulses of voltage that feeds the brake and the data capture system. This project started with the need for improved equipment control and data acquisition dynamometers, eddy-current, installed at the Automotive Laboratory, Instituto Federal de Santa Catarina (IFSC). In the system of control and data acquisition parameters can be added as temperatures, pressures etc., further improving the precision of torque and power these devices.

The paper addresses the development of an electromagnetic brake control and data acquisition system to capture speed and torque. LabVIEW™ was used to implement a graphical interface to evaluate the performance of internal combustion engines. This graphical interface allows processing and displaying the signs in their appropriate units, and also the refinement of data in the desired tracks, in ways to evaluate the power and torque curves. This project started with the need to improve research equipment control and data acquisition on eddy-current dynamometers that are installed in the ADeMCI research group of the Instituto Federal de Santa Catarina (IFSC). In the control system and data acquisition parameters other variables can be added, such as temperatures, pressures, etc., this will promote further improvement in the precision of torque and power reading with this device.