A variable load dynamometer (VLD) measures the performance and operating characteristics of a test motor without the use of flywheels to supply the fixed resistance to the test motor. The VLD uses a slave motor coupled to the test motor. Using a software-controlled computer interface, the user can vary the load on the slave motor allowing for evaluation of the test motor under various load conditions. The VLD enables the user to analyze the operating characteristics and performance of the test motor by adjusting the speed of the test motor and the load applied to the test motor by the slave motor. Use of the slave motor coupled to the test motor eliminates the need for flywheels. The VLD's modular and compact design permits the evaluation of small-scale motors.
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