Pasco OS-8534A Aperture Bracket Manuel d'utilisateur

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Instruction Sheet
012-10299A
800-772-8700 www.pasco.com
®
Aperture Bracket
OS-8534A
Included Parts
1. Bracket with aperture disk and removable screen
2. Holder with (2) thumbscrews
3. Thumbscrew for attaching light sensor
4. Post
Additional Part Required
PASPORT or
ScienceWorkshop
light, UV, IR, or
broad-spectrum sensor.
Introduction
The Aperture Bracket acts as a mask and holder for a light sensor.
By rotating a disk, you can select various apertures to control the
sensors spacial resolution and the amount of light entering the
sensor. A removable screen displays light cast to the left and right
of aperture. The Aperture Bracket also allows a light sensor to be
mounted on the included holder, so that the sensor can be used on
a PASCO Basic Optics bench.
About the Apertures
Slit Apertures
The six slit apertures are typically used when scanning the sensor
across a spectrum or a diffraction pattern. Select a wider slit to
allow more light into the sensor or a narrower slit to improve the
spacial resolution. The approximate widths of the apertures are
0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 1.0 mm, and 1.5 mm.
10% Screen
The small holes in the screen allow approximately 10% of inci-
dent light through to the sensor.
Circular Aperture
This aperture is approximately 8 mm in diameter. It allows the
maximum amount of light through to the sensor.
Translucent Screen
The translucent screen allows the sensor to measure illuminance,
for instance when demonstrating the inverse-square law. The
screen is approximately 8 mm in diameter.
Assembly
1. Use the thumbscrew to fasten the sensor to the bracket as
illustrated.
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10%
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®
0.1 mm
0.2 mm
0.3 mm
0.5 mm
1.0 mm
1.5 mm
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Résumé du contenu

Page 1 - Assembly

Instruction Sheet012-10299A800-772-8700 www.pasco.com®Aperture BracketOS-8534AIncluded Parts1. Bracket with aperture disk and removable screen2. Holde

Page 2 - Aperture Bracket Instruc

®Aperture Bracket OS-8534A22. Turn the disk to select the desired aperture. The aperture in use is in the lowest position.3. (Optional) Attach the bra

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