REALIZATIONOF THE EDDY CURRENT METHOD OF CONTROL ON THE BASIS OF DETERMINATION OF THE COMPONENTS OF THE DIFFERENCE SIGNAL OF THE THREE-PARAMETER CONVERTER WITH A TUBULAR PRODUCT

Abstract

The purpose of the article is to study the theoretical positions of the operation of a thermal eddy current transformer (ECP) during the implementation of the three-parameter method of measuring the control of geometric, electrical and temperature increments of non-magnetic tubular products. The method of research of the three-parameter eddy current method of measuring control of geometric, electrical and temperature parameters of tubular products based on ETP is used. Results. A three-parameter eddy current method of joint measuring control of geometric, electrical
and temperature parameters of nonmagnetic tubular products and their parts is proposed. The basic rela-tions are given which describe the eddy current method for controlling the increments of the outer radius R, the electrical resistivity and the temperature t of the light alloy and drill pipes and their parts. Scientific novelty. The theoretical development of thermal ECPs with non-magnetic tubular products that are heated in the process of control, through the implementation of the proposed three-parameter eddy current method of measuring control of geometric, electrical and temperature parameters, was further de-veloped. Practical value. The proposed algorithms of measurement and calculation procedures allow to de-termine the limits of measurement of signals of the primary ECP, which correspond to the ranges of varia-tion of geometric, electrical and temperature parameters of pipes and their parts, which creates conditions for further design and construction of automated instruments and devices designed to control and monitor important technological processes in machine building, metallurgy and instrument making.