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Only OK parts
required for calibration
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PMFT with 8 test frequencies
at every channel
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Automatic generation of all
8 tolerance zones per channel
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Convenient display
of all test results
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The eddyliner®P2/P3 /P4/P16 eddy current instruments are designed for testing material mix, heat treatment (hardness, case depth, temper, etc), sinter density and structure differences on various test areas of one test part. (The number indicates the utilizable channels: 2, 3, 4 or 16.)
The eddyliner®Px is specifically designed for versatility in production and its operation principle is based on ibg's multi-frequency testing (PMFT). Thus it provides a far greater degree of reliability than single-frequency eddy current instruments.
Operation is supported by a user-friendly complete on-board computer to simplify and speed up calibration and sort procedures. Use of leading edge electronic techniques allows extremely short test times despite multi-frequency scanning.
Using an optoelectronic interface the eddyliner®Px can be integrated into automatic test processes. As a standard feature the instrument is completely equipped with all displays and interfaces.
Preventive Multi-Frequency Method:
Only OK parts are required for calibration of the eddyliner®Px. During calibration these known reference parts are tested over a broad frequency band (1:1000 to 1:3000) with up to 8 frequencies per test area. A typical impedence curve develops. Like a fingerprint it reflects the different characteristics of material such as alloy and structure as well as scattering of the known OK parts.
Due to very easy operation the eddyliner®Px can quickly be brought into test mode. Testing is also carried out with up to 8 frequencies at each position. The instrument only decides on OK if the overall view of the test part corresponds to the recorded data. Thus unexpected deviations are detected and sorted out. Test reliability is significantly improved as compared to with the old single-frequency method.
Test Routine:
Test result is either ”OK” or ”NOK”. It is shown by a green or red indicator lamp and is available at optically isolated outputs.
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Technical Data:
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Easy to operate, even by
semi-skilled personnel
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High-speed testing
within milliseconds
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Maximum stability due to
automatic self-calibration
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Maximum test reliability
to find unexpected defects
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After each test the integrated statistical evaluation is updated with numerical and percentage information.
Data Storage:
Up to 16 possible frequency band combinations can be selected at the eddyliner®Px for calibration purposes. Moreover, 50 complete instrument set-ups can be stored for future access.
Each test set-up can also be stored externally on a so-called ”Memory Plug”. The Memory Plug is simply plugged in at the front panel and thus makes transmission of one test set-up to other eddyliner®Px units possible.
Documentation und Data Transfer:
The eddyliner®Px is equipped with a standard Centronics Interface for communication with external printers to provide hardcopy print-outs.
An integrated RS232/V24 interface permits communication with separate main-frame computers to perform statistical analysis (SPC) of accumulated data.
Opto-isolated Interface:
With the standard opto-interface external control signals can be transferred to the eddyliner®Px and sorting decisions can be transmitted to peripheral accessories (Examples: test initiation via light barrier, transfer of sorting decision to gate mechanism, optical and/or acoustic alarm signals).
Coils and Probes:
Suitable coils and probes are available for all applications. Besides the wide range of standard accessories, coils for all frequency ranges and dimensions can be made to meet customer’s specification..
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