Block diagram of the multichannel master generator of the adaptive information-measuring system for vibro tests of the radioelectronic equipment

Abstract

To improve the efficiency of test for determining dynamic characteristics of the structure of electronic tools developed by specifying multi-channel generator. The generator is part of the information-measuring system intended for the dynamic vibration. The description of the structural scheme of the device and principle of operation of information-measuring system. The master clock consists of four independent channels. Each channel is built on the basis of independent modules implementing digital synthesis of frequencies in the range from 1 to 12000 Hz. The chosen architecture defines a multi-channel generator allows you to expand the possibilities of vibration test equipment with separate control parameters for each channel. The proposed structural scheme allows, for each channel, to specify individually the initial phase, the amplitude and frequency of the output harmonic signal. It is also possible to choose the form of the output signal and changes the frequency of the signal at a speed not less than 2 octaves per minute. The latter achieved through the using of modern DDS modules that are optimized to the digital interface, and the application of each DDS module registers two separate frequencies. To optimize the parameters switch between frequency registers in the modules of the applied method, Ramped-FSK.