Advanced Scan Types
Beam Profile
Note: Beam Profiles are only available in Advanced Mode.
A Beam Profile is most often used to perform Transducer Characterization.
Patch Scan
See Patch Scan.
Sub B-Scan
Like a Patch Scan, a Sub B-Scan is a rescan of a sub-section of the collection. However, only B-Scan data is collected within the region. The Sub B-Scan region is always a Linear Scan.
When the user selects an area and starts a Sub B-Scan, they are given the opportunity to set the Sampling Rate of the waveform before proceeding. This helps reduce the amount of data collected for the B-Scan (which can be considerable at high sampling rates).
The original location of the Sub B-Scan will be shown on the image as a rectangle with the B-Scan name superimposed at the top left.
Sub B-Scans can be deleted using the drop-down menu that appears when right-clicking on the Sub B-Scan name.
Megaboard
Megaboard allows a user to chain together a series of smaller scans into one large process. This is useful for scanning discrete portions of a part (e.g. all the chips on a printed circuit board). Megaboard will use previously generated parameter files to create the collection.
To create a Megaboard setup, move to the "Megaboard" tab on the Scan Manager window. At the left will be a list of all parameter files in the Parameters directory (as specified in OKOS_Config.xml). To add a parameter to the Megaboard, click on the right arrow to move it to the second window. The order of the files can be changed by right-clicking on any file in the list and moving it up or down.
Note: It is vital that all parameter files be generated from initialized systems, so that the relative start positions are correct. Otherwise, the scans will not occur at the correct positions.
The list of parameters for the Megaboard can be save using the "Save..." button on the "Megaboard" tab.
To run the Megaboard, press the "Start" button at the bottom of the ODIS screen. The scans will be run in the order specified. As each scan is run, a collection is created.
Since each scan is a separate parameter file, they can use completely different settings (including different types such as Linear or Tray Scans). However, it is not recommended to run scans of completely different hardware configurations (such as a Linear followed by a Rotational scan) due to the complexities of configuring the system to avoid possible collisions.
Megaboard in Basic Mode
To select Megaboard in Basic Mode, use the Scan Setup drop-down to select the "Megaboard" option. The interface at right will be shown.
In Basic Mode, Megaboard setup is simplified. The user can select from the list of parameter files and chose the ones to run just as in Advanced Mode. Sorting features are not available.
There are two additional options that can be enabled during Megaboard: Whether or not to Merge the resulting scans into one collection, and whether or not to lift the Focus axis when moving between scans. Both are located just below the Scan type selection drop-down.
Point Scan
Note: Point Scan is only available in Advanced Mode.
Timed Scan
Note: Timed Scan is only available in Advanced Mode.