Eddy Current Tube Testing Equipment

Eddy current testing of heat exchanger tubes means detecting more circumferential and axial cracks including wall thinness.

Eddy current tube testing equipment. Eddy currents were first observed by françois arago in 1824 but french physicist léon foucault is credited with discovering them in 1855. Encircling and sector eddy current coil tests perform in this manner. 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. Get eddy current equipment for tube bar and wire from bkn leading ect testing equipment manufacturer.

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. Eddy current testing of tubes is highly specialised requiring expertise and specialist equipment. 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. 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.

The direct path inside the tube is rapidly attenuated by circumferential eddy currents induced in the tube s wall. Zetec is the industry leader for cost effective eddy current testing ect in complex applications. The first commercial use of this type of testing was introduced in 1930 and was called the model e probolog. High quality eddy current testing solutions for complete inspections.

Tube testing technologies products selectedtext inspection instruments prod name. Eddy current tube testing. Eddy current testing equipment utilizes the frequency generator impedance bridge as well as a probe that houses one or more coils. The indirect coupling path originates in the transmitter s magnetic field that diffuses radially outward through the wall.

We have the most extensive experience and we develop the highest quality ect inspection products. 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. Our high performance equipment and solutions includes ge s portable mentor em the nortec 500 series and the nexxis.

Two coupling paths exist between the transmitters and receivers. The theory was first introduced in 1879. Eddy current testing ect as a technique for testing finds its roots in electromagnetism.