Automated Ultrasonic Testing (AUT) Pipeline Inspection Services

JANX has extensive experience using Automated Ultrasonic Testing (AUT) to conduct mechanized inspections of pipeline girth welds. We excel at the staffing and supporting large-scale, land-based projects.

RTD Rotoscan™, our proprietary technology, is a field-proven, automated ultrasonic testing (AUT) pipeline inspection service system that’s optimal for long-distance, cross-country pipelines from 8 inches to 48 inches in diameter and wall thickness of a quarter-inch to 2 inches.

While RTD Rotoscan is designed to keep up with high-production mechanized welding systems, this technology is suitable for inspecting the results of most welding processes.


  • Safe, environmentally friendly
  • No equipment goes inside the pipe
  • Accurate anomaly sizing (height, depth, length) and characterization
  • Rapid interpretation of results
  • High-volume image production
  • Permanent digital record

Wherever You Need Us

Because we’re equipped to mobilize testing services across the United States, our customers can get their inspections done whenever and wherever they need them. That includes pipeline operators working in remote environments or extreme conditions. Our technology and more than 35 years of experience mean customers can rely on us for thorough, detailed, and rapid inspection results.

Read More: Why Choose JANX

Setting the Standard in Quality Assurance

Our internal Compliance Department ensures customers consistently receive an accurate, high-quality product.

Read More: Our Industry-Leading QA

Ultrasonic Testing Technologies

  • Phased Array
    Uses multiple elements fired in succession to produce beams that can be steered, swept, and focused electronically. This technology provides safe, accurate results.
  • Shear Wave
    Proven technology; commonly used for flaw detection and the inspection of new construction welds, structural steel welds, and in-service welds.
  • Straight Beam
  • Time of Flight Diffraction (TOFD)
    This high-speed screening tool complements other ultrasonic tools during weld inspections to produce more comprehensive data.
  • Internal Corrosion Mapping (CMAP)
    Uses straight beam UT tools to identify and measure interior deterioration.