akrometrix DIC Benutzerhandbuch - Seite 12

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3. Press the Adjust Height button and lower the TherMoiré sample support so that

the level of the calibration target is the same as sample to be measured.

Typically this will be such that the bottom of the calibration target is within 5 mm

of the oven heater bulbs.

4. Adjust the right camera so that it is roughly centered on the calibration target

dot field.

5. Move the calibration target left or right and up or down to make its dot field fit

within the right camera's FOV.

6. Align the left camera such that it matches the right camera's FOV. There is a

hole in the Common Crossbar Mount support behind where the camera

attaches for the largest FOV. This allows for adjusting the left camera's angle

while the camera mount plate is securely attached using the thumbscrews.

Figure 2.6 Two Images of Calibration Target in DIC Surface Measurement

7. Adjust aperture and focus so that the cal target is adequately bright and in

focus.

8. To get best focus, open the iris fully on one camera lens and reduce the light

source intensity to compensate.

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Note: Only the FOV that can be seen in both cameras

will be useful for analysis. When connecting the

cameras to their support bracket, it is important to line

them up so that they image the same FOV.

40-5000-01500 Rev. A

DIC User Manual