Diagnostics devices

Magnetometer SKIF - MBS

Of late a contact method of pipelines technical condition diagnostics based on metal magnetic memory (MMMM) which utilizes magneto-elastic and magneto-mechanic effects was developed. Parent metal and welds areas are brought to light in excavation pits according to residual magnetization rate with recording of stress concentration lines on top of objects under examination characterized by a field maximum gradient at these lines crossings.

A non-contact magnetometric method is a new method of technical condition estimation based on exposure of flaws whereabouts owing to magnetic conductivity change registration resulted from changes in stress caused by mechanical loads or structural changes in pipeline metal (pipe deformation, internal or exterior corrosion, sags, landslip loads, etc.). A similar principle underlies exposure of flaws via registration of satiation magnetic fields by way of a magnetic flaw-detection device application. Metal flaws exposure efficiency thereof is comparable with in-line flaw detection and is not less than 75%.

Thereto a non-contact scanning Magnetometer “SKIF” of MBS product line (MBS-03, MBS-04) – which is in a sense an “out-line” flaw detector – was devised and successfully approved.

Certificates:

Certificate of approval of types NON-CONTACT SCANNING MAGNETOMETERS MBS-04 “SKIF” #30786-05 of 26.12.2005

Certificate of conformance by permissibility #6639426 of 23.11.2005

The method enables

1) To fix position of metal flaws and insulation coating from the ground surface without pipe exposure (in linear and angular coordinates) with accuracy ± 0.25 m.

2) To estimate the nature of pipeline metal defects, to monitor their growth and build a database on its actual technical status.

3) To perform pipeline systems certification with entries of data on the detected flaws position in absolute geographic coordinate system (GPS), specification of a pipeline axis and laying depth.

Route-locator Poisk-A

- Finding location and laying depth of underground service metal pipelines of large and small diameters, power and telephone cables, even if they run parallel to each other irrespective of the cathodic protection presence and on the background of interferences caused by power transmission lines, tram and trolleybus lines.

- Fast and reliable inspection of territory before excavation works.
- Exact determination of pipeline location to prevent damage of insulation coating during excavation works.
- Location of intersections of pipeline with any alive cables.
- Finding of pipeline or cable nearby other service lines including overhead power lines.

«POISK-AMS» set service conditions: air temperature from -30 up to +50°C, relative humidity up to 98% at +20°C, atmospheric pressure 84-106,7 kPa.

Odometer ODA-03

Portable odometer ODA-03 of «ODA» series is intended for distance measurement along a route of extended engineering structure, in particular, pipeline, on cross-country, with the purpose of fixation the linear coordinates (fixations on locality) of defects, which have been revealed during the in-line, non-contact magnetometric or other diagnostic inspection; features of a route: ground line structures, river crossings, roads, ravines, etc.

Portable odometer ODA-03 can be used as well for marking the longitudinal coordinates along an underground pipeline axis for completion of a database for the process of certification, as a unit of pipeline route-tracer "POISK-AMS" or other route-tracer set with function of laying depth measurement.

- Portable
- Minimal weight
- In the shock-resistant case
- Is simple in operation