MODE OF CONTROL AND DETECTION OF DEFECTS IN PIPELINES OUT OF FERROMAGNETIC MATERIALS Russian patent published in 2007 - IPC F17D5/02 G01N27/82 

FIELD: the invention refers to the field of control and detection of defects in pipelines out of ferromagnetic materials.

SUBSTANCE: the mode measures the absolute value of the module of magnetic induction or/and the gradient of the value of the module of magnetic induction, builds the graph of dependence of the value of the module of magnetic induction or/and the gradient of the value of the module of magnetic induction from distance, finds middle values of magnitudes of magnetic induction and/or the gradient of the value of the module of magnetic induction for selected plot, defines the value of mean square deviations and select the fields where values of the meanings of the module of the induction of a magnetic field and/or the gradient of the value of mean square deviations. After that plots on the terrain are defined correspondently separated on the graph of the fields and execute control of the pipeline by indestructible methods.

EFFECT: prevents gusts and in time repair of potentially dangerous plots(possibility of forecasting of possible breaks).

3 cl, 1 dwg