Data Harvest EasySense Посібник із швидкого старту - Сторінка 5
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EASYSENSE Laser module with Optical slides
1.
The set of slits
This optical slide has clear slits on a black film labelled from A to J.
(b)
(a)
(d)
Single slit specifications
Width Size (a)
Slit
(microns)
A
25
B
36
C
43
D
51
E
61
2.
The Diffraction gratings/patterns slide
This optical slide has three diffraction gratings
(labelled N, O, and P) and three diffraction patterns
(K, L and M) on a black film.
Description
Pattern
of pattern
K
Target
L
Target
Checker
M
board
Line width
Grating
(microns)
N
8
O
10
P
20
A double slit
Double slits
F
G
H
I
J
Diffraction pattern specifications
Line width
Lines spacing
(microns)
(microns)
10
10
10
10
10
10
Diffraction grating specifications
Lines
Distance between slits
spacing
(microns)
(microns)
8
8 + 8 = 16
10
10 + 10 = 20
20
20 + 20 = 40
5
Double slit specifications
Width of slit
Slit Width
separator
(a) (microns)
(b) (microns)
25
25
25
36
25
51
51
51
61
61
Distance between
slits (microns)
10 + 10 = 20
10 + 10 = 20
10 + 10 = 20
Lines per mm
62.5
50
25
DS058
Distance (d)
between centres
of slits (microns)
25 + 25 = 50
25 + 36 = 61
25 + 51 = 76
51 + 51 = 102
61 + 61 = 122
Lines
Lines per
per mm
inch
50
1270
50
1270
50
1270
Lines per inch
1587.5
1270
635