Need to build an electric motor dynamometer for a college project. I have a rough idea of a design.
The motor being tested (1/3hp) will be coupled to a DC resistance motor (1hp). A photoelectric sensor will be used to measure the speed of the rotating shafts and an arm attached on the resistance motor will be attached 1 foot from the center of the shafts. A load cell will take the torque measurements from this arm. The resistance motor will be mounted by its shaft to pillow blocks so that it can rotate freely.
I have watched a few youtube videos of a similar set-up, but this is all a little over my head. I will have more specific questions as the build starts, but right now I wondering if anybody here has any experience with this type of set-up? What should I look for in a resistance motor for this design?
My main concern is that the resistance motor will not be able to provide resistance throughout the RPM range of the test motor (0-1825 RPM).
The motor being tested (1/3hp) will be coupled to a DC resistance motor (1hp). A photoelectric sensor will be used to measure the speed of the rotating shafts and an arm attached on the resistance motor will be attached 1 foot from the center of the shafts. A load cell will take the torque measurements from this arm. The resistance motor will be mounted by its shaft to pillow blocks so that it can rotate freely.
I have watched a few youtube videos of a similar set-up, but this is all a little over my head. I will have more specific questions as the build starts, but right now I wondering if anybody here has any experience with this type of set-up? What should I look for in a resistance motor for this design?
My main concern is that the resistance motor will not be able to provide resistance throughout the RPM range of the test motor (0-1825 RPM).