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TOPAZ 

– Technical Guidelines 

 

      14 

 

When 

Beam Density

 is set to 

Sparse

, the focal laws are defined as follows: 

Focal Law Id 

Aperture 

Refracted Angle 

1 to 16 

40.00° 

2 to 17 

50.00° 

3 to 18 

60.00° 

4 to 19 

70.00° 

 

When 

Beam Density

 is set to 

Dense

, the focal laws are defined as follows:  

Focal Law Id 

Aperture 

Refracted Angle 

1 to 16 

40.00° 

1 to 16 

47.50° 

2 to 17 

47.50° 

2 to 17 

55.00° 

3 to 18 

55.00° 

3 to 18 

62.50° 

4 to 19 

62.50° 

4 to 19 

70.00° 

 

 

 

Содержание TOPAZ

Страница 1: ...www zetec com TOPAZ TM Technical Guidelines Release 3 7R21 TOPAZ is one of the most efficient and versatile non destructive testing NDT instrument Simply brilliant...

Страница 2: ...1 PaintBrush Scanner Support 3 2 Auto Crossing Gates 6 3 Probe Position Marker 7 4 Interpolation for Volumetric Merge 9 5 Compound Scan 11 6 Path Correction for Pitch Catch Configuration 15 7 TCG Auto...

Страница 3: ...through the touch interface To create an inspection configuration with your PaintBrush scanner 1 Start up your TOPAZ 2 Connect the encoder feedback cable of the PaintBrush scanner to your TOPAZ A win...

Страница 4: ...ner to the rotation point of the wedge ii Define the Orientation Preset Orientation of the scanner according to the scan and index axes iii Define the Scan Preset Distance between the scanner referenc...

Страница 5: ...d on your specimen Scan Reference Offset and Index Reference Offset are automatically defined from the values above These values are defined per the probe wedge assembly reference point green dot on t...

Страница 6: ...these two modes the detection threshold changes according to the maximum amplitude of the signal within the gate Threshold is automatically adjusted at 6dB or 12dB from the live maximum signal amplit...

Страница 7: ...your volumetric views Top Side and End Figure 3 1 Probe Cursor on VC Top C Display for a Focal Law at 60 The orientation and length of the Probe cursor in the displayed view is computed based on the...

Страница 8: ...t Always To always display the Probe cursor in setup and acquisition mode OR Select Acquisition Only To display the Probe cursor only during data acquisition acquisition mode OR Select Hide To hide th...

Страница 9: ...ills the empty spaces in merged views Those empty spaces are a typical result when performing volumetric merges of data acquired with azimuthal focal laws multiple refracted angles Figure 4 1 Volumetr...

Страница 10: ...is menu go to Processing tab 2 Click Merge Custom The Merge Custom window appears Figure 4 3 Merge Custom Window 3 Click Use Interpolation to select Yes To use the interpolation during the volumetric...

Страница 11: ...pound scanning Figure 5 1 Compound Scan Example As illustrated the desired refracted angles are distributed on the different apertures defined by the linear focal laws parameters and therefore defines...

Страница 12: ...an increment on the linear sweep and on the angle sweep This means that the exit point moves and the refracted angle changes between each laws The angle range defined by Start Angle and Stop Angle is...

Страница 13: ...des a sweep with density similar or better than traditional Azimuthal or linear sweep The total number of focal laws is two times higher when Sparse Motion of the aperture is defined by the Aperture F...

Страница 14: ...ure Refracted Angle 1 1 to 16 40 00 2 2 to 17 50 00 3 3 to 18 60 00 4 4 to 19 70 00 When Beam Density is set to Dense the focal laws are defined as follows Focal Law Id Aperture Refracted Angle 1 1 to...

Страница 15: ...for the A scan VC Side B and VC End D display This feature is available for linear focal laws in pitch catch configuration with a 0 LW inspection angle To display the True Depth PC ruler 1 Click on th...

Страница 16: ...pears 2 In Parameters tab set a Reflector Type b Detection gate Threshold c Signal amplitude Target d Verification Tolerance for signal amplitude e Detection Blanking It defines the minimum distance b...

Страница 17: ...a complete mapping of the examined surface The C Scan Stitching feature allows you to adjust the position of the data on the surface and correct angular misalignment that might have occurred during t...

Страница 18: ...t original files being divided in different channels in the new file The next step is to perform the stitching process 2 In the File menu click Open Data 3 In the Open Data window browse to find the D...

Страница 19: ...include in the stitching 7 For the selected data define the Data type Amplitude or Position 8 In Gates select the detection gate of the C scan data you wish to stitch 9 In Method define if you want to...

Страница 20: ...a along the scan axis or index axis Flip Scan and Flip Index b Change the start location of the selected c scan along the scan and index axes by modify the Scan and Index parameters To modify the loca...

Страница 21: ...all c scan channels to be stitched 13 Click Merge 14 The New stitching name window appears enter a name for the new channel with the stitched data 15 Click Accept Your C scan data is now merged Figure...

Страница 22: ...ally this mode was the one used in previous software release Figure 9 1 Legacy Wedge Definition Example Height of First Element Default This new mode allows you to define the height of the first eleme...

Страница 23: ...definition mode 1 In the Tools menu select Options 2 In the Options window set the Wedge Definition Mode to Legacy or Default Figure 9 3 Options Window 3 Click Accept The Wedge Definition Mode is defi...

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