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UT Cables, Calibration Blocks and Couplant

Cables are the conduit between the Ultrasonic instrument and ultrasonic probe carrying the electrical signal. Cables come in many forms from regular to high strength to heat resistant. Cables have specific connectors to fit the physical size and location on a probe.

Couplant is used to exclude the air between the surface of the ultrasonic probe to the test component. Couplant is packaged in many sizes and is available as a liquid or in a powder. It has many different viscosities dependant on the application. It is also available in different heat ranges so that inspections can be carried out without shutting down equipment.

Calibration blocks are used to set up the ultrasonic instrument to the probe to ensure accuracy is maintained. In ultrasonics inspectors go from the known (calibrated probes) to the unknown (inspecting the component). Calibration blocks are as varied as ultrasonic probes. They can be used to set up for thickness measurements (step wedge) or confirm probe angles (IIW/IOW blocks). Calibration on the same material as the test component is important hence blocks are available is in carbon steel, stainless steel and aluminium.





Cal Blocks

Cal Blocks

Other Resources



Western Australia

T: (08) 9322 4020 

Derek Burns


M: 0498 800 373


New South Wales

William Ward


T: (02) 9986 1857

M: 0418 381 709 

Joel Shenoy


M: 0487 043 466



T: (03) 9938 3830

Melanie Lasslett


M: 0428 315 502

Monica Simhadri


M: 0488 331 244



Michael Dubery


T: (07) 3040 6166

M: 0419 477 715


Auckland, New Zealand


E: This email address is being protected from spambots. You need JavaScript enabled to view it.

M: +64 274 738758

T: +64 9 377 6778


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