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Page 3 of 10 Positioning motors 101 Many engineers are adept at reading motor specifications for total torque, size and power, but less well known are some of the implications of how the different motor types create torque and how these characteristics affect performance in areas such as smoothness, Mean Time Between Failure (MTBF), and the cost of the controller. To understand these issues better let us start with a discussion of motor operation for each of the three motor types. Each motor type has particular characteristics such as preferred operating speed, smoothness, cost, etc., which provide many variables for us to compare and contrast. |
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