The article discusses identification methods in industry and equipment presented on the Russian market for marking and identification of objects. The purpose of the article is to analyze the equipment and installations available on the Russian market for marking and identification of straight-seam steel pipes in production. A comparison of methods based on a scoring system for marking and identification of straight-seam steel pipes in production is presented. Barcode marking technologies using labels, laser marking and RFID tags are presented and considered as identification methods.

Keywords: barcoding, laser marking, RFID tag, straight-seam steel pipe, thermal label printer, automated identification system

This work is devoted to the development of a control system for the technological process of extruding a polymer coating of pipes. In the process of work, the existing system for regulating the temperature of the polyethylene extruder zones was analyzed, and the scientific and technical literature was analyzed. The description of the technological process of extruding the outer polymer coating of a steel pipe is given, the selection of automation equipment is carried out. The main difference between a proportional controller over a proportional-integral-derivative controller was described, the optimal tuning coefficients of the PID controller were also determined using experimental methods, graphical transients were given, and the most appropriate method for controlling the temperature of the zones of worm machines was selected, due to which increasing the homogeneity and uniformity of the protective polymer layer.

Keywords: pipe polymer coating extrusion, PID controller, polyethylene, adhesive

An analytical review of the impact of electromagnetic fields on human health is performed. A method for studying the electromagnetic situation during the territorial planning of urban settlements is proposed. The intensity of the electromagnetic field of industrial frequency in four main functional zones of Rostov-on-Don is investigated. Areas with a favorable electromagnetic situation and areas of increased environmental risk for residents have been identified.

Keywords: Electromagnetic field, industrial frequency, functional zones, territorial planning, environmental risk.

Possible ways of quality control of soil stabilization on the ground of geophysical methods have been analytically considered. The article focuses on the findings of the natural observations resulting from the changes of Q-factor value during the injectional soil stabilization in the regime of hydraulic rupture. The outcomes of authors allow to recommend the method of georadiolocation in quality control of soil foundation stabilization.

Keywords: Georadar, soil stabilization, automated diagnosing, “good quality” of electromagnetic field.