NDT Technologies, Inc. has recently developed its NDT_CARE Signal Foundry™ software package for the computer-assisted evaluation of wire rope. This program suite was designed for use in conjunction with the LMA-Test (USB)™ electromagnetic wire rope inspection equipment.

The rope analysis system consists of two separate parts:
(1) Signal Foundry™ Data Acquisition hardware and software, and
(2) NDT_CARE™ (Computer Aided Rope Evaluation) software package for computer-assisted data analysis and chart evaluation.

Data Acquisition

For data acquisition, any Personal Computer can be connected to the CC-04-USB Signal Console with a USB cable via the USB Ports of the computer and the CC-04-USB console.

The Signal Foundry™ software is then used by the computer for data acquisition and display. This program runs on any PC. It is pre-calibrated and pre-programmed for a wide variety of rope sizes and constructions. This feature, together with detailed prompting, allows automatic test setup and calibration -- at the push of one of the Function Keys (F1….F5) on the computer keyboard -- even by relatively unskilled operators.

Signal Foundry™ allows a real-time graphical display of data during acquisition and playback. The program allows scrolling, rescaling, stretching, and printing of the acquired charts during recording and playback.

The acquired data are stored in the Excel-compatible ASCII (*.txt) format, which is required by the NDT_CARE™ software.

Wire Rope Evaluation

Software The NDT_CARE™ software is available as an Excel Add-In. The Add In is easy to use. It exploits the advanced charting and data processing features of Excel. Here are some highlights of the NDT_CARE™ software.

  1. The exclusive and proprietary Wire Rope Roughness (WRR) Analysis method makes our wire rope NDE equipment the only available instrumentation that allows a reliable detection and quantitative characterization of internal broken wires (single and in clusters) and corrosion pitting. Because, internal broken wires and broken wire clusters typically occur in multistrand non-rotating and IWRC ropes, WRR Analysis is indispensable for the inspection of crane ropes, diving bell ropes, or IWRC ropes. WRR Analysis is especially suited for the inspection of so-called high value wire ropes (i.e., large diameter (>100mm) subsea construction ropes with lengths in excess of 2000m). This approach also shows great promise for the inspection of spiral strand.

  2. The program makes test results completely independent of rope speed, and it allows scaling and customized formatting of charts.

  3. Test results can be displayed in the forward or reverse direction. This is useful for comparing results from subsequent inspections that were performed with the rope running in opposite directions.

  4. An overview chart of the entire rope length on a single page allows easy identification of critical rope sections for a more careful evaluation.

  5. The program’s Post-Calibration feature offers an alternative approach to calibration. The Post-Calibration procedure is graphical and is performed by clicking-and-dragging on one of the charts.

  6. The software allows baseline adjustment of the LMA trace. This is important when the inspection is started on a deteriorated section of the rope. The adjustment procedure is graphic and consists of a click-and-drag operation on any one of the charts.

  7. Using Excel VBA (Visual Basic for Applications), the user can write his or her own subroutines that are custom tailored to specialized requirements. This feature is particularly useful for research projects.

  8. Using the chart formatting capabilities of Excel, the user can change the appearance of all charts as desired.

  9. Many other features, too numerous to mention, are also available. For example, the program is completely compatible with MS Office, and charts can be exported into word processor documents, data bases, presentation graphics, etc.

For menu items and features from NDT_CARE™ software, please see below: