Scanners/Sensors

MRUT - MEDIUM RANGE UT (EMAT)

Medium Range Ultrasonic Testing (MRUT) is a suite of advanced non-destructive testing techniques that utilize guided waves to inspect inaccessible areas up to 3 meters (10 feet) from the sensor location with high resolution and accuracy. The MRUT scanners and sensors are designed to generate high-frequency guided waves with different mode configurations (Shear Horizontal, Lamb) depending on the type of application and technical requirements. All MRUT techniques and applications are available on VOLTA 2.

MRUT Applications

CORROSION UNDER PIPE SUPPORTS (CUPS). Manual axial and circumferential scanning for CUPS. The patented SIZING scanner and software provide actual measurements of remaining wall thickness (quantitative assessment).
DEFECT DETECTION ON BURIED/HIDDEN INTERFACES. Inspects inaccessible areas of structures (e.g., lamp posts) from the exposed side using the SIZING or CIRC scanners. Can penetrate up to 3 meters (10 ft) to detect corrosion or other damage.
FAST AXIAL SCANNING ON FREE-STANDING PIPES. Quick and accurate detection of circumferential defects on exposed pipes with light or no coatings (<3–4mm) using our PML or PMX scanners. Fast axial scanning at speeds up to 150mm/s (6 in/s).
DEFECT DETECTION ON RAILROAD WHEELS. Detects sub-surface defects on railroad wheel treads from a single point on the wheel using the POINT sensor.
SINGLE POINT INSPECTIONS. Designed for localized assessments on boiler tubes, tanks, and other structures using the POINT sensor where access is limited and scanning is not feasible or required.
AXIAL SCANNING ON RAILS. Fast inspection and detection of defects on the head of rails using the PMX scanner.

MRUT scanners/sensors

Innerspec's MRUT techniques utilize high-frequency guided waves in Lamb and SH modes for superior detection in hard-to-access areas on a wide range of structural components. MRUT complements LRUT with higher sensitivity and defect qualification and quantification near the sensor.

Standard EMAT & DCUT Sensors and Accessories for VOLTA and CODA

Title

Publication

Year

In-Motion Railcar Wheel Inspection Using Magnetostrictive Emats

Materials Evaluation

2024

Limitations of the Cutoff Frequency Technique for Sizing Defects and a Potential Path Forward

ASNT

2023

New EMAT solutions for the railway industry

ECNDT 2018

2018

Corrosion Detection Under Pipe Supports Using EMAT Medium-Range Guided Waves

WCNDT 2016

2016

Inspección bajo soportes con Ondas Guiadas Transversales Horizontales generadas por EMAT

CNEND

2015

In-Service Inspections Using EMAT and MRUT

Inspectioneering Journal

2015

Inspección bajo soportes mediante Ondas Guiadas generadas por EMAT

AEND

2015

MRUT SIZING AXIAL: DEFECT DETECTION AND MEASUREMENT OF REMAINING WALL THICKNESS ON PIPES WITH GENERALIZED CORROSION

Arix Technologies sought to evaluate the MRUT SIZING application using VOLTA 2 for their inspection operations. To assess the application's performance, they provided a pipe sample containing conditions commonly encountered in the field, along with four artificial defects designed to challenge remaining wall thickness estimation.

BURIED GAS RISER PIPE INSPECTION USING MEDIUM AND LONG-RANGE GUIDED WAVES

An Australian LNG Company has many gas field riser pipes in remote locations. The risers are wrapped in various mediums depending on the chosen wrap technology at the time that they were constructed. Currently, the LNG Company policy is to excavate the risers and strip the wrap to visually inspect the pipes for external corrosion.

CORROSION DETECTION UNDER WELDED DEAD LEG SUPPORTS USING MRUT SH GUIDED WAVES WITH VOLTA

Inspecting dead leg supports is a primary application within the broader scope of Corrosion Under Pipe Supports (CUPS). A client sought to evaluate the VOLTA 2 MRUT SH capabilities for detecting corrosion under dead leg supports at their facilities.