Pasco Scientific CI-6689A User manual

Instruction Sheet
for the PASCO
Model CI-6689A
CHAOS ACCESSORY
012-06594A
8/97
$1.00
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teach science
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®
© 1996 PASCO scientific
This instruction sheet written by: Jon Hanks
Introduction
The PASCO CI-6689A Chaos Accessory is designed
for use with the PASCO CI-6538 Rotary Motion Sensor
(RMS) or the PASCO CI-6625 Rotary Motion Sensor for
ULI. It consists of an aluminum disk (identical to the
one provided with the PASCO CI-6691 Mini-Rotational
Accessory), a mass which attaches to the edge of the
disk to form a physical pendulum, two springs for put-
ting tension in the thread, and an adjustable-gap mag-
net which attaches to the side of the RMS to provide
variable magnetic damping.
Please refer to the instruction manual supplied with the
Rotary Motion Sensor for a detailed description of ex-
periments using the Chaos Accessory.
Chaos Experiment
The purpose is to examine the different modes of oscilla-
tion of a damped driven physical pendulum caused by
varying the driving amplitude, driving frequency, mag-
netic damping, and initial conditions.
Additional Equipment Required
• IDS Mount Accessory (CI-6692)
A mounting bracket for mounting the RMS to the
PASCO Introductory Dynamics System tracks (1.2
meter ME-9435A or 2.2 meter ME-9458).
magnetic damping
attachment
thread
mass
spring (2)
disk

2
Chaos Accessory 012-06594A
®
Mechanical Oscillator/Driver
Dynamics Track
Adjustable
End-Stop
IDS Mount
Accessory
spring (2)
Chaos Experiment Setup
string
string
Damped Pendulum Experiment
The purpose is to show the motion of a magnetically
damped physical pendulum.
Limited Warranty
PASCO scientific warrants this product to be free from
defects in materials and workmanship for a period of one
year from the date of shipment to the customer. PASCO
will repair or replace, at its option, any part of the product
which is deemed to be defective in material or workman-
ship. This warranty does not cover damage to the product
caused by abuse or improper use. Determination of
whether a product failure is the result of a manufacturing
defect or improper use by the customer shall be made
solely by PASCO scientific. Responsibility for the return
of equipment for warranty repair belongs to the customer.
Equipment must be properly packed to prevent damage
and shipped postage or freight prepaid. (Damage caused
by improper packing of the equipment for return ship-
ment will not be covered by the warranty.) Shipping
costs for returning the equipment, after repair, will be
paid by PASCO scientific.
To Reach PASCO
For Technical Support call us at 1-800-772-8700 (toll-
free within the U.S.) or [phone].
email: [email protected]
Tech support fax: [phone]
Web: http://www.pasco.com
magnetic damping
attachment
RMS with
3-step Pulley
support rod
rod clamp
magnet
disk
mass
magnetic damping
attachment
RMS with
3-step Pulley
rod clamp
disk
(phantom view)
Damped Pendulum Experiment Setup
to interface