MTS Fundamental Video Extensometer - Manual (Page 26)

Fundamental Video Extensometer 26
Starting the Video Extensometer
Test Window
The Main Window
To select a region of interest of the image, click and hold the left mouse button on
the image then drag to define the rectangle of interest then let go of the mouse
button. When the left mouse button is released, the image is increased according
to the selected area.
Four combinations are offered to the user:
• Automatic optimization of the image and automatic search of the markers'
area.
• Manual optimization of the image and automatic search of the markers' area.
• The automatic optimization of the image and manual search of the markers'
area.
• Completely manual optimization of the image and the search of the markers'
area.
The Test Procedure
Before beginning the initialization of the test, it is highly recommended to check
the setting in the window “Condition of tensile test”. The information to verify is
the color and the number of markers and the type of strain selected. It is strongly
recommended to press Initialize before starting a test to determine the maximum
strain possible.