AUTOMATED TESTER Russian patent published in 1998 - IPC

FIELD: electrical engineering, tests of electric systems. SUBSTANCE: invention can be used as device controlling serviceability of control equipment and normal operation of its circuits. Automated tester has pulse generator, pulse counter, controlled switch and matching unit. Output of pulse generator is coupled to input of pulse counter which outputs are coupled to inputs of control unit and to address inputs of controlled switch. Output of controlled switch is coupled to measurement unit, switched-over inputs of controlled switch are coupled to control inputs of tester. Tester is additionally inserted with logic OR ELSE gate, former of short pulses and time relay. Output of matching unit is connected to first input of logic OR ELSE gate which output is coupled to controlling input of pulse counter. Output of less significant position of pulse counter is coupled to input of former of short pulses. Output of former of short pulses is connected to reset input of time relay. Output of time relay is coupled to second input of logic OR ELSE gate. EFFECT: increased speed of response and authenticity of test. 1 dwg