PASCO OS-8534A User Manual

®

Instruction Sheet

012-10299A

Aper ture Bracket

OS-8534A

1

2

3

4

Included Part s

1. Bracket with aperture disk and removable screen

2. Holder with (2) thumbscrews

3. Thumbscrew for attaching light sensor

4. Post

Additional Part Re qu ired

• PA SPORT or

ScienceWorkshop

light , U V, IR, or

broad-spectrum sensor.

Introduction

The Aperture Bra cket a cts as a mask a nd ho lder for a l ight sen sor.
By rotating a disk, you can select various apertures to control the
sensor’ s spacial resolut ion and the amount of light entering the
sensor . A remov able sc reen di splays light cas t to t he left and ri ght
of apert ure . The Aper tu re Bra cke t also al low s a lig h t sens or to be
mounted on the include d holder, so that th e sensor c an be us ed on
a PASCO Basic Optics bench.

10% Screen

The small holes in the screen allow approxima tely 10% of inci­dent light thr ough to the sensor.

Circular Aperture

This aperture is approximately 8 mm in diameter. It allows th e
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-s quare law. The
screen is approximately 8 mm in diameter.

0.1 mm

0.2 mm

2

N

E

S

T

H

G

I

L

4

0.3 mm

3

0.5 mm

P

E

10%

R

1.5 mm

1

®

A

4

3

R

5

8

-

S

O

A

T

U

R

E

B

R

6

O

S

R

O

F

T

A

E

C

K

5

1.0 mm

Assembly

1. Use the th u m b screw to fa st en th e s en so r to th e bracket as

illustrated.

About the Apertures

Slit Apertures

The six slit a perture s are ty pical ly used when scannin g the sensor
across a spectrum or a diffraction pattern. Select a w i der slit to
allow more light into the sensor or a narrower s lit 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.

800-772-8700 www.pasco.com

Aperture Bracket OS-8534A

2. Turn the disk to select the desired aperture. The aperture in

use is in th e lowest po s i ti on.

3. (Optional) Attach the bracket to the included component

holder as il lustrat ed .

Attaching t he Bracket to a
Rotary Motion Sensor

Using the Bracket with a
Cuvette

To hold a cuvette (such as PASCO part SE-8739) in front of the
sensor , fasten the sensor to the Ape r ture Bracket as ill ustrated,
and place the cuvett e between the sensor and th e dis k.

Screw Storage

When the thumbscrew is not in use, screw it into the storage loca­tion as illustrated.

1. Screw the inc luded post into the br acket as illu strated.

2. Secure the post in the clamp of a Rotary Motion Sensor.

Removing the S creen

Loosen th e two thumbscrew s on the screen to rem ove it. The c ap­tured thumbscre w s rema in loosely connected to the detached
screen.

Technical Support

For assistance with any PASCO product, contact PASCO at:

Address: PASCO scientific

10101 Foothills Blvd.
Roseville , CA 95747-7100

Phone: [phone] (worldwide)

800-772-8700 (U.S.)
Fax: [phone]
Web: www.pasco.com
Email: [e-mail]

Limited Warranty For a description of the product warranty, see the
PASCO catalog.
Copyright The PASCO scientific 012-10299A

tion Sheet

non-profit educational institutions for reproduction of any part of this man­ual, providing the re productions are used only in their labo ratori es and
classrooms, and are not sold for profit. Repro duction under any other cir­cumstances, without the written consent of P ASCO scientific, is prohibited.
Trademarks PASCO, PASCO scientific, ScienceWorkshop, and
P ASPORT are trademarks or registered trademarks of PASCO scientific,
in the United States and/or in other countries. All other brands, products ,
or service names are or may be trademarks or servi c e marks of, and are
used to identify, products or services of, their respective owners. For more
information visit www.pasco.com/legal.

is copyrighted with all rights reserved. Permission is granted to

Aperture Bracket Instruc-

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®