Performs eddy current testing inspections using eddy current probes in the aerospace, automotive, petrochemical, and power generation industries in the detection of surface or near-surface defects in materials such as aluminum, stainless steel, copper, titanium, brass, Inconel, and even carbon steel (surface defect only).
|Overall dimensions (W x H x D)||244 mm x 182 mm x 57 mm (9.6 in. x 7.1 in. x 2.1 in.)|
|Weight||1.2 kg (2.6 lb)|
1 19-pin Fischer® eddy current probe connector
1 BNC connector
|Number of channels|
|Probe recognition||Automatic probe recognition and setup|
|Number of generators||1 (with internal electronic reference)|
|Maximum voltage||12 V p-p into 10 Ω|
|Operating frequency||20 Hz to 6 MHz|
|Bandwidth||8 Hz to 5 kHz (in single coil). Inversely proportional to the time-slot duration and set by the instrument in multiplexed mode.|
|Number of receivers||1 to 4|
|Maximum input signal||1 Vp-p|
|Gain||28 dB to 68 dB|
|Acquisition rate||1 Hz to 15 kHz (in single coil). The rate can be limited by the instrument's processing capabilities or by delays set by the multiplexed excitation mode.|
|A/D resolution||16 bits|
|Phase rotation||0° to 360° with increments of 0.1°|
|Filtering||FIR low-pass, FIR high-pass, FIR band-pass, FIR band-stop (adjustable cutoff frequency), median filter (variable from 2 points to 200 points), mean filter (variable from 2 points to 200 points)|
|Maximum file size||Limited to available internal flash memory: 180 MB (or 300 MB optional)|
|On internal clock||1 Hz to 15 kHz (single coil)|
|On encoder||On 1 or 2 axes|
|Number of alarms||3|
|Alarm zone shape||Pie, inverted pie, box, inverted box, and ring|
|Output type||Visual, audio, and TTL signals|
|Analog outputs||1 (X or Y)|
Eddy Current Technology
Eddy current testing (ECT) is a noncontact method for the inspection of metallic parts. The probe, excited with an alternating current, induces an eddy current in the part being inspected. Any discontinuities or material property variations that change the eddy current flow in the part are detected by the probe as a potential defect.
Over the years, probe technology and data processing have continuously progressed so that the eddy current technique is now recognized to be fast, simple, and accurate. This is why the technique is widely used in the aerospace, automotive, petrochemical, and power generation industries in the detection of surface or near-surface defects in materials such as aluminum, stainless steel, copper, titanium, brass, Inconel®, and even carbon steel (surface defect only).
Benefits of Eddy Current
Eddy currents offers the following benefits:
Eddy Current Probes
Olympus standard eddy current probes are available in different configurations:
Reference standards with EDM notches can be manufactured according to the application specifications.
Probes used to perform eddy current inspections are made with a copper wire wound to form a coil. The coil shape can vary to better suit specific applications.
a- The alternating current flowing through the coil at a chosen frequency generates a magnetic field around the coil.
b- When the coil is placed close to an electrically conductive material, an eddy current is induced in the material.
c- If a flaw in the conductive material disturbs the eddy current circulation, the magnetic coupling with the probe is changed and a defect signal can be read by measuring the coil impedance variation.
Surface preparation is minimal. Unlike liquid penetrant or magnetic particle inspection, it is unnecessary to remove the paint from the surface to inspect the parts.
Impedance Plane and Strip Chart Display
C-Scan Surface Mapping
Multifrequency Operation and Automatic Mixing Capability
Advanced Real-Time Data Processing
Eddy Current Reports
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