Collections

an A-Scan (bottom), B-Scan (top left), an a C-Scan (top right). The position of the A-Scan is at the center of the red box on the C-Scan. The B-Scan is represented by the green line across the C-Scan image. A-Scans can also be extracted from B-Scan data.

The basis of the data collected is called a waveform. A single waveform is the recording of the ultrasonic echo at a single point on a part. The peaks and valleys of the waveform are reflections as the sound travels through the part and encounters different materials.

A waveform is also known as an A-Scan.

A group of waveforms can be displayed in a row, generating a "slice" or "Cross section" of a part. This "slice" is known as a B-Scan. Multiple rows of B-Scans can be collected.

By taking the waveform and extracting features such as Peak Amplitude or Time of Flight, a map of those can be generated. This 2-D feature map is also known as a C-Scan.

The set of all data collected during a single scan is called a collection.

See Also:ODIS Raw File Format, Gates and Regions, Gate Features

Methods to Save a Collection

Save on Icon Menu. Note "Save As..." item just below.

Save on Image Window

To save a Collection:

• right-click on the collection icon and select "Save", OR
• right-click on the collection icon and select "Save As" to save with a new name, OR
• on the Image window, click on the disk icon next to the collection name field.

Changing a Collection Name

When viewing a collection through the image window, simply change the collection name in the Collection Name field before saving. Otherwise, use the "Save As..." item from the Icon Menu.

Collection Locations

Typical Collection directory

The ODIS Raw File Format (ORFF) consists of a number of files in a stored in a directory. Collections are stored in the “Dir_Working” directory as specified in the ODIS_Config.xml file (or as overridden with the “Set Working Directory” Main Menu item). The Collection directory contains all data and the complete setup used to create the scan. The name of the directory is the name of the collection.

See Also: ODIS Raw File Format

Saving Collection Data in Other Formats

Collection data can be saved in a variety of standard image file formats, including TIFF, JPG, and BMP.

See: Image Exports