ET20 dual channel intelligent eddy current flaw detector is a new generation of eddy current nondestructive testing equipment, it adopts the most advanced FPGA, DSP digital electronic technology, eddy current technology and micro processor technology, multi-channel real-time detection technology can detect ferromagnetic and non ferromagnetic metal pipe inner wall and the outer wall defects effectively.The DSP/FPGA high speed data processing circuit, ensure the high sampling rate and low noise instrument, preventing the false or false positives.ET20 adopts advanced eddy current impedance plane and timebase technology design, not only convenient debugging and operation, and has reliable, stable and sensitive detection capability.ET20 has two relatively independent detection channels, which can simultaneously obtain two absolute or two differential eddy current signals.Or by the combination of the absolute and differential coil probe, two detection channels for data acquisition at the same time, for the detection of metal tubes, rods in the production of longitudinal cracks and transverse defects (such as the barge port).

Technical features:
Testing channel: 2　　　　　　　　　　　　　　　　　　
Testing frequency: 2　　　　　　　　　　　　　　　　　
Frequency range: 64 Hz～5 MHz　　　　　　　　　　　　　
Testing speed: 160meter/min　　　　　　　　　　　　　　
Gain range: 0～90dB continuously  adjustable，adjust0.5dB　               
Phase rotation: 0 ~ 359 degrees continuously adjustable, the accuracy of 1 degrees　　　　　　　　　
Non-amplitude phase / amplitude domain alarm　　　　　　　　　　　　　      
Gain ratio(Y/X): 0.1～10　　　　　　　　　　　　　　
Fast digital / analog electronic balance　　　　　　　　　　　　　　
Real-time and delayed hardware alarm output　　　　　　　　　　　　　　  　　　　　　　　　　　　　
Precision tip, tail end cutting function　　　　　　　
Synchronous alarm output          　　　　
Mass storage and reproducing the detection signal　　　　　　　　                   
Has a memory trace delay blanking function　　　　                         
Automatic signal amplitude and phase measurement　　　　　　　　             
Can save the detection report manually or automatically　　　　　　　               
All digital parameter adjustment　　　　　　　
Can be driven by different forms of the detection probe　　　　　                 
The background selection of Cartesian coordinate system and polar coordinate system                         　　　　
Mass storage detection parameters and detection data　　　　　　        
Digital filtering function　　　　　　
Real time base + impedance plane display　　　　
Band-pass filter　　　　　　　　　  　　　
Windows operating interface, modular man-machine dialogue　
 
ET20 with 64HZ ~ 5MHz the adjustable frequency range, it has very high detection sensitivity for production in the process of welding, crevice, opening cracks, porosity, slag and folding defects.
The instrument is suitable for nondestructive testing of various kinds of metal materials, such as copper, aluminum, low conductivity stainless steel, titanium alloy and so on.For steel, iron and other ferromagnetic metal also has excellent detection performance. With different forms of probe (such as the external wear, flat type and fan probe), can be online or offline fast detection of circular, square or other types of cross section of the tube and bar. Instruments in line with GB, DIN, ASTM, API and BS and other international eddy current testing standards.

Probes and accessories

Application field