Mantis 5000 Specifiche Scaricare il pdf (Pagina 31)

Figure 29. The mask fits onto the double aperture base. This figure shows only one

aperture is open.

7. Click the Windows Start button, then Programs, then Cary WinUV, and then

Align.

8. Set the SBW to 2.00.

9. Close the sample compartment lid.

10. Tick the Zero Order check box, click the Apply button to drive the instrument

to zero.

11. Open the sample compartment lid and adjust the height adjustment screw on

the side of the polarizer mount until the image is centred over the apertures.

Hot tip

Holding a piece of white paper in front of the apertures will made the beam

image easier to see. You can use the aperture mask to draw the apertures on the

paper before mounting the mask.

Figure 30. The image should be centred over the apertures.

12. Close the sample compartment lid and go to the wavelength that you are going

to use for the measurement. Take note of the % transmission reading.

13. Open the sample compartment lid and rotate the aperture mask so that only the

lower aperture is open.

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Mantis 5000 Specifiche Pagina 31