RECEPTION PATH OF ULTRASONIC FLAW DETECTOR Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: circuit of automatic amplification control is built of control detector, integrator, two-level threshold device and attenuator control unit connected in series. It is placed between output of video detector and second input of attenuator. EFFECT: enhanced authenticity of test thanks to regulation of gain factor of reception path in its input circuits. 2 dwg