How to Judge the Quality of Eddy Current Flaw Detector?

How to Judge the Quality of Eddy Current Flaw Detector?

1. The introduction of eddy current flaw detector


Eddy current flaw detector is an instrument which uses the eddy current property of conductive material in alternating magnetic field to detect the changing signal of conductive materials' superimposed magnetic field to indicate material defects. Eddy current flaw detector is a compact, practical and cost-effective instrument with high performance. Portable battery operated eddy current testing instrument with excellent performance is suitable for maintenance testing or other eddy current testing. It is sensitive for testing defects of metal tube, bar, thread, wire types of materials, such as surface crack, hidden crack, slag inclusion and open crack. The instrument is super easy to operate. There is no need to readjust the instrument when changing the production specifications.


2. Methods to judge the quality of an eddy current flaw detector


(1) First is the accuracy of eddy current flaw detector. A good product should be able to meet all the requirements of customers. That is to say, the serviceability of it for customers is the standard to test product quality. What should be detected can be detected, and what should not be detected can not be judged as unqualified. "Neither treat a good man wrongly nor letting go a bad man", otherwise, it will waste products and resources, increase production costs and reduce the profits of the enterprise. If deciding the quality of an eddy current flaw detector only by performance, price or other properties, without considering accuracy, it will be a judgement without ground, like water without a source and a tree without roots. 


(2) Second is fast response ability of eddy current flaw detector. On the premise of ensuring the accuracy of detection, a good eddy current flaw detector should be able to respond fast. It needs to be able to keep up with the needs of high-speed production of enterprises, and not at the expense of production efficiency. Time is precious, and efficiency equals benefit!


(3) Last is the eddy current testing machine price. When we buy something, we all want to buy things with good quality and low price, which is human nature. However, whether it is "good quality and low price" or "cost-effective", price comes after performance.


In conclusion, to purchase a good eddy current flaw detector, we need to check and compare eddy current flaw detectors as many as possible, and learn about its application in the market.

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