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Table of Contents

1. Probe Description ............................................................................ 3

2. TECA™ Technology ........................................................................... 4

3. Getting Started ............................................................................... 6

4. Setting Up Your Inspection ................................................................ 11

4a. Opening an Existing Setup ....................................................................... 11

4b. Creating a New Setup with the Setup Wizard ............................................... 13

5. Nulling the Sharck Probe .................................................................. 18

6. Calibrating the Sharck Probe ............................................................. 19

7. Collecting Data .............................................................................. 21

8. Saving Data ................................................................................... 24

9. Analyzing Data ............................................................................... 25

9a. Available C-Scans .................................................................................. 25

9b. Analysis Methodology ............................................................................. 25

9c. Analyzing Data with Reddy ...................................................................... 27

10. Saving and Reporting ..................................................................... 30

Содержание Sharck

Страница 1: ...Sharck Probe for Reddy Inspection User s Guide Version 1 1 Date 2015 07 28 ...

Страница 2: ...on 11 4a Opening an Existing Setup 11 4b Creating a New Setup with the Setup Wizard 13 5 Nulling the Sharck Probe 18 6 Calibrating the Sharck Probe 19 7 Collecting Data 21 8 Saving Data 24 9 Analyzing Data 25 9a Available C Scans 25 9b Analysis Methodology 25 9c Analyzing Data with Reddy 27 10 Saving and Reporting 30 ...

Страница 3: ... The large Sharck probe is not compatible with Reddy as it requires 128 channels Ectane 128 or 256 All the fingers of Sharck probes patent pending contain a three coil assembly operating in a specific transmit receive mode called tangential that enables measuring variations of the eddy currents distribution This is referred to as tangential eddy current array or TECA TECA was developed to detect a...

Страница 4: ...a very particular eddy current signal for surface breaking cracks in carbon steel The TECA pancake coil s axis is parallel to the surface under test instead of being perpendicular as is typical in eddy current testing when using pancake coils As illustrated below this coil orientation helps eddy currents to dive underneath cracks offering valuable information about their depth Each finger of the S...

Страница 5: ...ent of the signal can be reduced by a factor 2 or 3 when there is significant lift off However since the coil design allows for monitoring the lift off it can be measured in order to adjust depth sizing accordingly Ultimately the technique relies on multiple depth curves that are calibrated with various lift off values The result is equivalent to a 3D depth plane allowing to correlate crack depth ...

Страница 6: ...tarted Figures below summarise the names given to the various part of the Reddy s interface Figure 6 Backstage window Figure 7 Front stage window Ribbons Status icons Display area File navigator Collapsable tables Readings ...

Страница 7: ...otes You can connect and disconnect the Sharck probe while the instrument is running Reddy performs a compatibility check on the probe to verify that the current setup is valid 3 In the backstage view tap Project 4 Create a new inspection folder or open an existing one by tapping Create Inspection or Open Inspection respectively Figure 8 Backstage view Create Open inspection ...

Страница 8: ... time and press on Start Working the Acquisition Summary dialog box appears The information you specify here is associated to this inspection folder You can tap Acquisition Summary in the backstage view to open it again at a later time When you are done tap OK Figure 10 Acquisition Summary dialog box 7 Create a new setup or open an existing setup by tapping Create New Setup or Open Setup respectiv...

Страница 9: ...9 P a g e Figure 11 Backstage view Create Open setup 8 Once you are done tap Start Working Figure 12 Backstage view Start Working ...

Страница 10: ...10 P a g e Figure 13 Front stage view ...

Страница 11: ...kstage view tap Open Setup Figure 14 Backstage view Open Setup 2 In the Open Setup dialog box on the Master list select the appropriate setup file in this case SHARCK W053 All standard probe setups are available in Reddy and are available on this list Figure 15 Open Setup dialog box ...

Страница 12: ...12 P a g e 3 Tap OK 4 Verify that the setup file is correctly applied Figure 16 Verifying the applied setup ...

Страница 13: ...very step of the setup wizard has default values You can modify them to suit your needs and applications 2 In the Component Definition dialog box select Carbon steel weld and then adjust the parameters for the part s to be inspected if desired Note that from here on for the Sharck probe all default values of the Wizard are designed to be adequate Figure 18 Component definition ...

Страница 14: ...election select the setup corresponding to the Sharck probe connected to Reddy Figure 19 Probe selection 5 Tap Next 6 In Scan Definition select the encoder and specify the type of scan Figure 20 Scan definition configure scan 7 Tap Next ...

Страница 15: ...Definition adjust the properties of your filters Figure 22 Data definition configuring filters Note Sharck probe setups are tailored for carbon steel That is why you cannot change the frequencies and injection voltages of these setups Moreover as most channel groups are necessary for analysis you can only disable the transverse group 11 Tap Next ...

Страница 16: ...In Indication Codes create the indication code list you wish to use during your analysis Figure 23 Indication codes 13 Tap Next 14 In Display configure your display properties Figure 24 Display properties 15 Tap Next ...

Страница 17: ...25 Display layout Note The layout highlighted in blue is the layout displayed when you start working To select any of the other layouts selected in the wizard press the Change layout button on Reddy s keypad or in the front stage view tap Layout and then Selecting Layout ...

Страница 18: ... Apply even pressure on the probe Figure 26 Nulling the Sharck probe Note To balance the probe we strongly recommend that you press the probe onto a non metallic surface instead of keeping it in the air This avoids having one or only a few fingers compressed at a lower position than neighboring fingers which can affect the probe s balance 3 On Reddy s keypad press the Probe nulling button Alternat...

Страница 19: ...appears next to Air reference block 5 Position the Sharck probe on the aluminum portion of Eddyfi s normalization plate 6 Apply even pressure on the probe 7 In the Sharck Assisted Calibration dialog box tap Aluminum When the necessary data is acquired a green check mark appears next to Aluminum 8 Position the Sharck probe on the carbon steel component to be tested near the weld but not over the we...

Страница 20: ...manages accordingly 11 In the Sharck Assisted Calibration dialog box tap Calibrate When the necessary data is acquired a green check mark appears next to Calibrate Figure 28 Sharck Assisted Calibration Calibration complete Note If for any reason you must normalize the probe again tap Reset before you perform the above procedure 12 Tap the red x on the top right corner of the dialog box to close it...

Страница 21: ...ont stage view on the Home or Calibration ribbon tap Acquire Note To ensure that the entire weld cap is covered by the probe s fingers whenever possible position the center of the probe s active area on the weld s centerline Depending on the width of the weld s crown and the welding process the probe may also cover all or part of the heat affected zone HAZ 6 Placing appropriate pressure on the pro...

Страница 22: ...iew of the probe transparency Along the scanning axis the origin is 38 75 mm 1 53 in from the front of the probe s casing the front being the edge of the casing closest to the scan direction Figure 30 Probe origin for plotting data Figure 31 Defect positioning along the scanning axis X axis 0 0 ...

Страница 23: ...eddy display simultaneously and some of the functions of the Home and Calibration ribbons are disabled Figure 32 Disabled functions during acquisition When you stop the acquisition you can save the data directly on Home ribbon See Section 8 for details ...

Страница 24: ...n the Reddy keypad press the Save inspection data button Figure 33 Saving data Notes When data is saved Save Data is disabled greyed and a new entry appears in the file navigator An orange icon appears before the filename to show that the data is saved but has not been analyzed yet The icon turns green when you have analyzed the data See Analyzing Data for details ...

Страница 25: ...cts This is why we recommend using the Depth Long C scan to assess flaws greater than 25 mm 1 in long We also strongly recommend that you visualize the Depth Raw C scan first to determine whether to use the Depth Long or Depth Short C scan to assess flaws thus avoiding missing defects 9b Analysis Methodology Data is analyzed by reviewing the Depth Short or Depth Long and the Length C scans Flaw li...

Страница 26: ...e impedance plane view of the Depth C scan you are using In the Length C scan resize your cursor horizontally so that it contains the entire indication the width of the cursor should be equal to the measured length plus 15 mm 0 59 in All measurements are made automatically and appear on the Reddy s display Figure 35 Sizing information Impedance plane of Depth Short C scan Impedance plane of Length...

Страница 27: ...pen 3 On the Layout ribbon tap Select Layout and then tap the layout that you want to use Figure 37 Selecting a layout 4 Review your data and move your cursor to an area of interest 5 Resize the cursor in such a way that the flaw like indication in the Length C scan is completely inside the cursor The width of your cursor should be equal to the defect s measured length plus 15 mm 0 59 in 6 To ente...

Страница 28: ...o switch methods in each view To obtain appropriate measurements use the Average Peak Vertical Vapv method to measure depth and the Maximum Peak Vertical Vmpv method to measure length Figure 39 Measurement methods You can quickly view the entries in your reports by tapping the Report tab at the bottom of the Magnifi GO window 2 1 ...

Страница 29: ...the part under test If a differential signal is appearing in the Length impedance plane but with a phase mostly horizontal giving generally no bright spot in the Depth C Scans this can typically be considered as geometrical effect from the weld such as excess of metal undercut etc Size defects shorter than 25 mm 1 in with the Depth Short C scan Size defects longer than 25 mm 1 in with the Depth Lo...

Страница 30: ...ge view tap Report Summary 2 Complete the necessary information Add or remove information if necessary Figure 42 Report summary 3 To save the setup and inspection data in the current inspection project tap Save Figure 43 Saving setup and inspection data ...

Страница 31: ...5 To edit your report tap Generate Report The Section Selection dialog box appears Figure 44 Saving setup and inspection data 6 Select the elements that you want to see appear in your report Figure 45 Report options 7 Tap Next ...

Страница 32: ...nformation and edit it if necessary Figure 46 Report summary 9 When you are done tap Finish The report is generated Use the controls at the top of the report viewer to save it to various formats navigate the report etc Figure 47 Inspection report ...

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