Electrical spark defectoscope for microcrack diagnostics

Abstract

The invention relates to information measurement technology, in particular to the field of diagnostics, including the oil and gas industry. The essence of the invention is that in an electrospark defectoscope for diagnosing microcracks, which consists of a control unit and an electrode, according to the invention, a rotating shaft with an encoder that determines the distance it is located inside the pipe during its movement is connected to one end of the electrode, an inverter that regulates the speed of its movement is connected to the motor that moves the blade, a tachometer that measures this speed, and a step-down transformer that reduces the high voltage to the other end of the electrode, A transmitter measuring leakage current and a microcontroller that processes the measured results and simultaneously determines the geometric parameters and coordinates of detected microcracks up to 1.5 mm in size and transmits them to a personal computer were added to its structure.