Characteristics of the oscillographgalvanometer: Some practical considerations in the design and application of the oscillographgalvanometer vibrator

The paper describes the mechanical characteristics of the vibrator for any periodic phenomena, so that the mechanical error due to the vibrator may be eliminated from the oscillogram and the true phenomena determined. The paper establishes the best damping to use, when considered from the standpoint of vibrator response, lag, and transient characteristics. There is a method given to determine the vibrator resonance and damping, that may easily be applied in the field. Curves, from which all the above mentioned may be obtained, are supplied.