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memo - Memorandum To John Demel From Andrew Grunenwald Date...

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Memorandum To: John Demel From: Andrew Grunenwald Date: 04/09/08 Re: Motors Lab Introduction The goal of this experiment was to compile data on the power capabilities on the various DC motors that are available to be used for the OSU robots competition using programming, a Handy Board, and a shaft encoder. Each group tested only one of the motors supplied to them. The various motors tested in this experiment are a gear Lego motor, a MPI servo motor, an Erector set motor, a Futaba motor, an Acroname motor, and Twin Tank set-ups utilizing 2.5 V, 3.3 V, and 12 V motors. There was already a program supplied to be used in conjunction with a Handy Board in order to control the motor and shaft encoder and calculate the speed of the axle attached to the motor. This memo will contain the qualitative results of the experiment, discussion of the experiment, and graphs comparing torque to speed. Results and Description In the attachment, Figure 1 contains the sketch of the lab set-up. Figure 2 contains the calculations for the stall current of the motor tested by Group G-7. Figure 3 contains
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