It is not proposed to introduce a new method for the determination of the hysteresis loop, but to introduce some advantageous modifications. The method is similar to the ring ballistic method outlined by Dr. R. A. Millikan. This method has the advantage over the old magnetometer method in that the lines of force are continuous through the iron. It cannot be used however if the iron is hard and causes any creeping.
Proceedings of the Iowa Academy of Science
©1909 Iowa Academy of Science, Inc.
Morehouse, D. W. and Woodrow, Harry Ray
"The Hysteresis Loop,"
Proceedings of the Iowa Academy of Science, 16(1), 165-166.
Available at: https://scholarworks.uni.edu/pias/vol16/iss1/21