PASCO Specialty & Mfg. OS-9179 User's Manual
Contents
1. 50 Instruction Sheet for the PASCO Models OS 9165 and OS 9179 012 01564C 10 91 Diffraction Slit Sets The PASCO Model OS 9165 includes four slides Set 1 Four single slits Set 2 Four double slits Set 3 Four multiple slits Set 4 Aperture and diffraction patterns The PASCO Model OS 9179 includes two slides Set 1 Four single slits Set 2 Four double slits Electroformed Slits Specifications Material 005 mm electroformed nickel Tolerances 005 mm Slit Width and Spacing The label on the top of each slide lists four patterns A B C and D The slits are arranged in that order from left to right on the slide Figure 1 illustrates the relation ship between the label and the slit specifications Note The SLIT SPACE dimension is from center to center of each slit PATTERN A NO SLITS 2 SLIT WIDTH 04 SLIT SPACE 250 FIGURE 1 Example for Double Slit Slide Pattern A furthest on the left consists of two slits each 04 mm wide and spaced 250 mm apart center to center Pattern B second from the left consists of two slits each 04 mm wide and spaced 500 mm apart center to center In Pattern C and D the width of each slit is 08 mm while the center to center spacing is the same as for A and B 10101 Foothills Blvd Phone 916 786 3800 PASCO scientific P O Box 619011 FAX 916 786 8905 Ros2. eville CA 95661 USA TWX 910 383 2040 APERTURES AND DIFFRACTION PATTERNS Specifications Material 005 mm electroformed nickel Tolerances 005 mm Pattern Dimensions Figure 2 illustrates the relationship between the slide label and the aperture or diffraction pattern dimensions Enlarge ments of patterns C and D are also represented PATTERN A B NO SLITS 2 2 2 SLIT WIDTH 04 04 04 04 SLIT SPACE 250 500 250 500 FIGURE 1 Aperture A furthest on the left is circular in shape with a 04 mm diameter Aperture A second to the left is circular in shape with a 08 mm diameter MVAVAVAVAVAVA X AVAVAVAVAYAVAYA AVAVAVAVAVAVAVAVA AVAVAVAVAVAVAVAVAVA AVAVAVAVAVAVAVAYAVAYA si AVAVAVAVAVAVAVAVAVAVAVA CY VAVAVAVAYAVAVAVAVAVAVAY VAVAVAVAYAVAVAVAVAVAY VAVAVAVAVAVAVAVAVAY S N VAVAVAVAYAVAVAVAY VAVAVAVAYAVAVAY i VAVAVAVAYAVAY Pattern C 012 01564C X BERR ERE Y XY Pattern D Note The black areas in Pattern C and D repre sent the actual hole pattern Dimensions for both Pattern C and D x 025 mm y 075 mm Operating Instructions Place the steel pads of any slide against the magnetic surface of the component holder and move the slide until the desired slits are in the proper position Note It may be necessary to use an Aperture Mask such as PASCO Model OS 9139 on the opp
3. osite side of the component holder to insure that light is incident on only one pattern at any given time PASCO scientific
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