MULTICHANNEL RECORDER Russian patent published in 1994 - IPC

FIELD: instrumentation engineering, particular, electrical measurement equipment. SUBSTANCE: multichannel recorder has clock pulse generator and multichannel A/D converter with normalizers at inputs and data receiver at outputs, normalizer control pulse shaper connected with its output to control inputs of normalizers, as well as counter-divider and synchronizing unit whose shaping input is connected with output of conversion end of A/D converter, and sync input with divider output of counter-divider whose input is connected with output of clock pulse generator and input of starting of A/D converter whose control input is connected with counter output of counter-divider. Control inputs of data receiver are connected, respectively, with outputs of data readiness and permit for reception of synchronizing unit and input of normalizer control pulse shaper is connected with divider input of counter-divider or with its counter input. Synchronizing unit has R-S flip-flop and univibrator, in this case, served as sync input, shaping input, outputs of reception permit and data readiness of synchronizing unit are, respectively, S input of R-S flip-flop, combined R-input of R-S flip-flop and input of univibrator, outputs of R-S flip-flop and univibrator. Synchronizing unit has two R-S flip-flops and OR element connected with its output to R input of first R-S trigger in which served as sync input, shaping unit, reset input and outputs of reception permit and data readiness of synchronizing unit are, respectively, combined S input of second R-S flip-flop and first input of OR element, combined R input of second R-S flip-flop and S input of first R-S flip-flop, second input of OR element, outputs of second and first R-S flip-flops and input of reset of synchronizing unit is connected with gating output of data receiver and input of reset of synchronizing unit is connected with gating output of data receiver. EFFECT: higher speed of response, accuracy and reliability of recorder. 3 cl, 6 dwg