ULTRASOUND DEFECTOSCOPE

摘要

The flaw detector is used for controlling rails and welded stitches, and has an enhanced accuracy. It consists of a multi-vibrator, with a time regulation for sensitivity, the inlet of which is connected to the outlet of a multi-vibrator for stroking impulses, a pressure formator, with time regulation of sensitivity, and a commutator (the outlet of which is connected to the outlet of the attenuator for time regulation of sensitivity), and a multi-vibrator with a zone for automatically regulating amplification. The multi-vibrator's inlet is switched to the outlet of the multi-vibrator for stroking impulses, and its outlet - to an inlet of a scheme for stroking and a second "AND" scheme. There is also an indicator for contact presence, the inlet of which is tuned to the outlet of the amplifier with automatic amplification regulation.