Eddy Current Tube Testing Equipment

Get eddy current equipment for tube bar and wire from bkn leading ect testing equipment manufacturer.

Eddy current tube testing equipment. The theory was first introduced in 1879. Zetec is the industry leader for cost effective eddy current testing ect in complex applications. Tube testing technologies products selectedtext inspection instruments prod name. Eddy currents were first observed by françois arago in 1824 but french physicist léon foucault is credited with discovering them in 1855.

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. Two coupling paths exist between the transmitters and receivers. A benefit of eddy current testing is that detection of defects is instant and can be reported immediately to site or operation managers. 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. Eddy current testing ect as a technique for testing finds its roots in electromagnetism. Eddy current testing equipment utilizes the frequency generator impedance bridge as well as a probe that houses one or more coils. 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.

The direct path inside the tube is rapidly attenuated by circumferential eddy currents induced in the tube s wall. 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. Eddy current tube testing.

The product is passed through or adjacent to an electrical test coil which has been excited by an alternating current. High quality eddy current testing solutions for complete inspections. Intertek s non destructive testing inspectors are pcn asnt and nas410 level ii or iii qualified in eddy. Eddy current testing of heat exchanger tubes means detecting more circumferential and axial cracks including wall thinness.

The first commercial use of this type of testing was introduced in 1930 and was called the model e probolog. Encircling and sector eddy current coil tests perform in this manner. Eddy current testing of tubes is highly specialised requiring expertise and specialist equipment.