Eddy Current Tube Testing Equipment

High quality eddy current testing solutions for complete inspections.

Eddy current tube testing equipment.

The theory was first introduced in 1879. Eddy currents were first observed by françois arago in 1824 but french physicist léon foucault is credited with discovering them in 1855. Eddy current testing ect as a technique for testing finds its roots in electromagnetism. The direct path inside the tube is rapidly attenuated by circumferential eddy currents induced in the tube s wall.

Tube testing technologies products selectedtext inspection instruments prod name. The first commercial use of this type of testing was introduced in 1930 and was called the model e probolog. Eddy current inspection is a widely accepted ndt method that uses electromagnetism for rapid easy and cost effective scanning of welded structures raw materials and finished products in order to detect surface and sub surface flaws. Eddy current testing of tubes is highly specialised requiring expertise and specialist equipment.

Our high performance equipment and solutions includes ge s portable mentor em the nortec 500 series and the nexxis. Eddy current testing equipment utilizes the frequency generator impedance bridge as well as a probe that houses one or more coils. Applicable to surface defect detection of non ferrous metals stainless steel tubes they can be widely used for on line or off line non destructive testing of raw materials for various industry. Intertek s non destructive testing inspectors are pcn asnt and nas410 level ii or iii qualified in eddy.

Eddy current array and other ultrasonic and electromagnetic equipment including instruments sensors software and robotic solutions to key industries such as aerospace energy mining power generation and transportation. Ect began largely as a result of the english scientist michael faraday s discovery of electromagnetic induction in 1831. The product is passed through or adjacent to an electrical test coil which has been excited by an alternating current. Encircling and sector eddy current coil tests perform in this manner.

Eddy current tube testing. Zetec is the industry leader for cost effective eddy current testing ect in complex applications. We have the most extensive experience and we develop the highest quality ect inspection products. This induces a flow of eddy currents around the test material or in the case of a sector coil in the area under the coil.

Two coupling paths exist between the transmitters and receivers. The indirect coupling path originates in the transmitter s magnetic field that diffuses radially outward through the wall. For the best heat exchanger testing users can choose between a multiplex simultaneous injection instrument or a tubing array instrument with probes featuring either bobbin or array compatibility or ideally both.