The Tmb Two-Component Pallograph, Its Characteristics and Application

摘要

The two-component pallograph was built to measure vertical and horizontal vibrations of ship hulls. It can record amplitudes from 0.5 to 150 mils single amplitude over a frequency range of about 2/3 to 60 cps. This report describes the instrument and its response characteristics and furnishes information on installation. Also included are a summary of experience in the design and modification of the unit and an evaluation of certain deficiencies which have not yet been corrected. (Author)