Eddy Current Array Articles & Analysis
26 articles found
Electromagnetic testing (ET) is a non-destructive testing method that uses the principle of electromagnetic induction for the detection of flaws in surface and subsurface levels. Eddy current testing (ECT) is a type of electromagnetic nondestructive testing (NDT) method. However, the terminologies for ET testing and ECT are often interchangeably used in industries for their same NDT principle. ...
Nondestructive testing (NDT) is the preferred method for coating thickness measurement on conductive and non-conductive materials. Eddy current array NDT is typically used for non-conductive coatings, and ultrasonic NDT for most standard wall thickness testing measurements. Of these methods, ultrasonic testing—specifically phased ...
Increasingly, industries are seeking various ways to enhance productivity and remove waste in their process. Flaw detection in the early stages of production can prevent long-term economic and productivity damage. In industries like manufacturing, petroleum, as well as military and defense that deal with metals or steel surfaces, corrosion can be a big issue. During the welding process of such ...
Oil and gas are drilled and pumped from the depths of the earth during hydrocarbon exploration. Before these hydrocarbons are transported to various destinations around the world, they are stored above ground in storage tanks. Companies rely on the integrity of storage tanks to keep their assets protected from the elements. Hence, the importance of storage tank inspections. Storage tank ...
However, not all NDT solutions work the same. eddy current array (ECA) and phased array ultrasonic testing (PAUT) have been shown to be the two most efficient, thorough, cost-effective, and accurate tools for aircraft and aircraft components. ...
The design and inspection of helicopters—whether military, commercial, or civilian—are subject to strict regulations. This makes sense: helicopters are a fast, versatile method of flight, but also can have a very low threshold between normal operation and challenging situations. For the safety of pilots, passengers, and bystanders, there needs to be strict regulations requiring all ...
When the public watches a train go by, they tend to watch the cars. But people in the industry know that the real action is in the wheels. The wheel rail interface is the most important component of a train’s operation, and it has to run smoothly to guarantee safety and efficiency. The enormous pressure that the wheels are constantly under means that wheels are ripe for encountering ...
One practical limitation of eddy current array (ECA) technology is that as the operator moves the probe across the surface under test, the excitation coils need to be close to the material in order to produce the signal quality required for an accurate ...
Improvements in nondestructive testing technology and especially the software and processing power of off-the-shelf, portable phased array ultrasonic instruments mean that internal pipeline corrosion, while obviously serious, doesn’t have to be the hidden threat that it was even just a few years ...
Eddy current testing for aircraft is a tried and true method of ensuring the efficacy of metal components. While it doesn’t work for everything—like composite material—it’s ideal for evaluating crucial components such as multilayer aluminum bodies, fasteners, and bolt holes. It’s also possibly the best way to review material for surface and subsurface cracking, which ...
Many of the most complex, large-scale systems also depend on the successful functioning of the smallest components and carefully-calibrated coordination. Tiny flaws or small layers of corrosion can cause huge problems. To ensure product reliability, manufacturers and asset owners run tests frequently. Both wall and coating thickness measurements are among these tests. Coating thickness ...
Safety is the single most crucial factor in the aerospace industry. When a failure happens, it can lead to widespread repercussions. While some failures are attributable to simple human error, a concerning number occurs because small flaws escaped detection and became terminal failures. Aircraft NDT inspection isn’t just about meeting regulations and minimizing downtime—it’s ...
One of the more useful forms of NDT developed is eddy current testing (ECT) where a magnetic field from a coil is induced into a conductive material—like metals—where anomalies in the material create changes to the “eddy currents.” The way the current’s flow is disrupted can reveal ...
This is done with a permanent or electromagnet, induced magnetic field (such as from a current-carrying coil) or by a direct electrical current run through the object. ...
There are additional customization specialties (i.e. eddy current array). The array capability is one of the most advanced features within NDT. Eddy current array (ECA) is an enhanced form of ECT that can outline flaws and cracks in greater detail and conform to complex ...
Therefore, technicians need a surface-oriented approach—such as eddy current array (ECA)—that can easily overcome the challenges of unconventional contours. ...
To achieve a robust inspection, consider ultrasonic testing (UT) and eddy current testing (ECT). Both methods can cover more testing ground in less time and detect more flaws than other NDT options. ...
This is particularly true when the flaw is very close to the transition between layers. The current method requires the use of a marker or tape on the probe to indicate depth. Simple, reliable, and repeatable bolt hole inspections are best accomplished through eddy current array (ECA) testing. It uses electromagnetic fields to ...
Nondestructive testing (NDT) for aluminum welding includes two important techniques: ultrasonic and eddy current. Both methods can expose diverse flaw types and offer comprehensive probing measures. With eddy current testing (ECT) and ultrasonic testing (UT), you can scan larger areas in less time and obtain resolute data in the ...
When it comes to NDT for corrosion detection, choose an ultrasonic testing solution including a scanner or an eddy current array solution including an instrument and flexible probe. ...