1. Introduction of eddy current flaw detectorEddy current flaw detector is suitable to test the welding quality of components and parts of pipelines, aircraft, vehicles and bridges in petroleum, aeros...
Eddy current testing is a non-destructive testing technique in which an alternating current electromagnetic coil induces eddy currents on the surface of a metal member. It is suitable for the detection of defects in conductive materials, including ferromagnetic and non-ferromagnetic metal materials.
Due to the eddy current flaw detection, the coil is not required to be in close contact with the member at the time of detection, and the chelating agent is not required to be filled between the coil and the member, and the inspection automation is easily realized.
However, eddy current testing is only applicable to conductive materials, and can only detect defects on the surface or near-surface layer, and is inconvenient for components with complicated shapes. In thermal power plants, it is mainly used to detect condenser tubes, steam turbine blades, turbine rotor intermediate holes and welds.
Referring to GB/T 5248-2008 copper and copper alloy seamless tube eddy current testing method
1～500m/min（high speed 1～1200m/min）
0～99dB，step size 0.1dB
0-360 °step1 °
Five-range can be adjusted
Synchronized alarm output controlled by an internal and external clock
High precision end and end-to -tail signal removal
High precision real-time、delayed alarm output
Fast digital／analog electronic balance
Memory track delay blanking function
Real-time impedance plane display
The instrument can match any probe
Remote automatic help system
Chinese and English man-machine interface
Non-equal amplitude phase／amplitude alarm domain
Computer full digital parameter adjustment
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