A focal law gives each active element a transmit delay (and a receive delay) so that the wavefronts add up along the chosen beam. Delays are computed from the travel time through the wedge and the part to the focus, then shifted so the earliest element fires at zero.
Export the laws of the current beamset as .law files (versions 5.0 and 5.2) or as XML and text for OEMPA-type instruments. See Field views for a picture of the resulting delays.
Other topics
- Probe and wedge
- Beamsets
- Part and weld
- Calibration blocks
- Custom parts
- Indications
- Pressure map, delay view and wave animation
- Wedge designer
- Zonal coverage
- Reports
- Files and exports
- Workspace files
- Results pane
- Focal laws
- Focus types
- Near field
- Beam spread
- Weld editor
- Zone naming
- Pipes and curved parts
- Calibration templates
- Drawing editor basics
- Snaps
- Layers
- Trim and extend
- Part templates
- Quality maps
- Full-matrix capture and A-scans
- Time-of-flight diffraction
- High-temperature wedges
- Drawing export
- Probe, wedge and transducer files
- View controls
- Options
- Units
- Report templates
- Layout editor
- Word export
- Accounts and access
- Keyboard shortcuts
- Transducer fields
- Indication types
- Warnings
- Technician guide: from part to plan