SYSTEM FOR CONTROLLING MULTIPLE-CHANNEL VIBRATION TABLE Russian patent published in 2000 - IPC

FIELD: control equipment for testing constructions with respect to vibration stability. SUBSTANCE: method involves equalization of time constants of channels by means of introduced pure delay circuits with programmed control into control unit of each vibration channel. Goal of invention is achieved by additionally introduced program-control timer, sounding pulse generator, multiplexer, demultiplexer, and delay circuits with programmed control according to number of control channels. This results in possibility to set time constant of each channel to value of time constant for channel, which has maximal delay due to programming of delay devices using measurement of time constant of all channels. Measurement of time constants of all channels is achieved by means of detection of response time to sounding signal. Device provides possibility to test within wide range of effecting generations from periodic vibration to arbitrary aperiodic vibrations which keep given phase shifts between vibration sources in given range of vibration frequencies. EFFECT: increased functional capabilities. 1 dwg