Pasco OS-8453 High Precision Diffraction Slits Manuel d'utilisateur télécharger pdf (Page 2)

High Precision Diffraction Slits OS-8453

About the Diffraction Slits and

Other Apertures

Single Slits Wheel

Circular Apertures

The two circular apertures have diameters of 0.2 mm and

0.4 mm.

Single Slits

The four singles slits have widths of 0.02 mm, 0.04 mm,

0.08 mm, and 0.16 mm.

Variable Slit

The “Variable Slit” is a wedge-shaped aperture ranging from

0.02 mm to 0.20 mm wide. Rotate the wheel to illuminate any

point along the length of the slit.

Square Pattern

Transparent

squares are

arranged in a grid.

Each square is

0.107 mm wide.

The center-to-cen-

ter spacing between

adjacent squares is

0.109 mm.

Hex Pattern

Transparent, equi-

lateral triangles

are arranged as

illustrated.

Dots Pattern

100 opaque circles

are scattered on a

transparent back-

ground as illus-

trated.

Holes Pattern

100 transparent

circles are scat-

tered on an opaque

background. The

holes pattern is the same as the dots pattern, but with transparent

and opaque areas switched.

Line

The opaque line on a transparent background is 0.08 mm wide.

Line/Slit Comparison

The opaque line on a transparent background and the transparent

slit on an opaque background can be illuminated simultaneously.

The line and slit are each 0.040 ± 0.005 mm wide.

0.02 mm

0.107 mm

0.02 mm

1.6 mm

diameter

0.06 mm

diameter

transparent

slit

opaque

line

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Pasco OS-8453 High Precision Diffraction Slits Manuel d'utilisateur Page 2

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