Performs eddy current array testing inspections. The test configuration supports 32 sensor coils (up to 64 with an external multiplexer) working in bridge or transmit-receive mode. The operating frequency ranges from 20 Hz to 6 MHz with the option of using multiple frequencies in the same acquisition.
(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 OmniScan® connector for eddy current array probes
1 19-pin Fischer® eddy current probe connector
1 BNC connector
|Number of channels|
32 channels with internal multiplexer
|Probe recognition||Automatic probe recognition and setup|
|Number of generators||1 (with internal electronic reference)|
|Maximum voltage||12 Vp-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|
|Number of generators||32 (4 simultaneously on 8 time slots; up to 64 with external multiplexer)|
|Maximum voltage||12 Vp-p into 50 Ω|
|Number of receivers|
4 differential receivers (8 time slots each)
|Maximum input signal||1 Vp-p|
|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 Array Technology
Eddy current array (ECA) technology provides the ability to electronically drive and read several eddy current sensors positioned side by side in the same probe assembly. Data acquisition is made possible through the use of multiplexing, which avoids mutual inductance between individual coils.
The OmniScan® ECA test configuration supports 32 sensor coils (up to 64 with an external multiplexer) working in bridge or transmit-receive mode. The operating frequency ranges from 20 Hz to 6 MHz with the option of using multiple frequencies in the same acquisition.
Benefits of Eddy Current Arrays
Compared to single-channel eddy current technology, eddy current array technology provides the following benefits:
Eddy Current Array Probes
Olympus manufactures ECA probes for a wide range of applications. Probes can be designed to detect a specific type of flaw or to follow the shape of the part being inspected. Standard designs are available to detect defects such as cracks and pitting, and subsurface defects such as cracks in multilayer structures, as well as corrosion.
Multiplexing principle between elements. Coils are shown for illustration purposes only.
Eddy current array probes can replace one axis of a two-axis scan and offer greater flexibility in the eddy current setup.
Probes can be made in different shapes and sizes to follow, with ease, the contour of the part under inspection.
Transmit-receive probe for corrosion detection down to 6 mm (0.25 in.) in aluminum
Transmit-receive probe for surface-crack detection shown with optional encoder
Absolute probe for surface crack detection
|Learn more about our eddy current array probes|
Simple Acquisition and Analysis Displays
Automatic Probe Detection and Configuration
Subtraction Tools in Analysis Mode
This function can be used to remove the lift-off variation that is shown between adjacent channels.
Advanced Real-Time Data Processing
Self guided, web-based tutorials allow you to learn at your own pace.