What is Teletest?

Teletest Focus+™ is the first commercial product offering all the benefits of the conventional guided wave screening technology with the added feature of focusing sound energy into specific regions of pipes to measure the distribution of corrosion around the circumference at a specific distance.

What is Long Range UT?

Long Range Ultrasonic Testing (LRUT) is an efficient technique used to test large volumes of material from a single test point.

What is Long Range ultrasonic testing?

Long range ultrasonic testing (LRUT), also known as guided wave ultrasonic testing, is a fast and cost-effective method for inspecting long lengths of pipe. A ring of transducers is fitted around the pipeline and the transducers generate and receive low frequency ultrasonic guided waves along the pipe.

How are weld joints identified in LRUT?

In case of a pipe feature such as a girth weld joint, increase in thickness is symmetrical around the pipe, so the advancing circular wave front is also reflected uniformly. LRUT is able to detect and distinguish between symmetrical and flexural waves and both types are displayed.

How is long range ut used in ultrasonic testing?

Long Range UT (LRUT) / Guided Wave Long Range Ultrasonic Testing (LRUT) is an efficient technique used to test large volumes of material from a single test point. Details

Can a guided wave be used for long range testing?

Long-range ultrasonic testing using guided waves is one of the few test methods which is able to examine 100% volume of pipe wall from one tool location so has found widespread applications in non-piggable pipeline where efficient inspection coverage is required or the pipeline in question has hard to reach areas.

Which is the principle of long range ut?

Figure 1. Principle of long range UT Up to 350 metres of pipework can be inspected from a single test point (using a battery- or mains-power supply). LRUT reduces the costs of gaining access and avoiding extensive removal of insulation (where present).

How does Teletest focus + guided wave ultrasonic inspection work?

Teletest Focus+™ can inspect long lengths of pipeline from a single tool location. This pulse-echo method using Guided Waves means that the sound is transmitted along the axial length pipe finding corrosion and inspecting inaccessible areas not covered by conventional means.