DEVICE FOR REPRODUCTION AND COMPOSITION OF SINUSOIDAL TRAJECTORIES Russian patent published in 2002 - IPC

FIELD: study of sinusoid as visual aids. SUBSTANCE: the device has a platform, guide, wheel, bar that is positioned on the platform in parallel with the guide and permanently connected to the wheel for rolling on it without slippage. The device has rods differing in length by two times, the larger rod is made with a holder on one end, and the smaller rod is hinge- joined with one of its ends to the middle of the larger rod. The wheel is rigidly linked with the smaller rod, the end of the rod sliding on the guide is positioned in the center of the wheel. The larger rod with the other end is installed on the guide for movement along it so that the rods form a α--shaped group. Fastened on the wheel are three α-- shaped groups so that the smaller rod of one of them is the diagonal of the parallelogram formed on the smaller rods as on the sides of the two other α--shaped groups corresponding to the composed sinusoids. Provision is made for composition of the charts of harmonic oscillations. EFFECT: enhanced accuracy of reproduction, convenience in use, reduced time of readjustment at the minimum quantity of links. 2 dwg