PASCO ME-8750 HARMONIC OSCILLATOR_DRIVER - Manual

Instruction Sheet
for the PASCO
Model ME-8750
HARMONIC OSCILLATOR/DRIVER
012-05931A
1/96
$1.00
better
teach science
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Phone (916) 786-3800 • FAX (916) 786-8905 • email: [email protected]
10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA
®
© 1996 PASCO scientific
This instruction sheet written/edited by: Ann & Jon Hanks
Introduction
The PASCO ME-8750 Harmonic Oscillator/Driver is de-
signed to drive apparatus requiring a low frequency (0.3
to 3 Hz), high torque, sinusoidal oscillation. It consists of
a DC motor with an offset driving arm and a mounting
bracket. A string can be attached between the driving
arm and the apparatus which is to be driven. The Oscilla-
tor/Driver will provide a sinusoidal pull on the string. If
one desires to both push and pull on an apparatus, the
PASCO Push/Pull Accessory (ME-8751) may be added
to the Oscillator/Driver.
Features
• 12 VDC motor (frequency: 0.3-3 Hz, current: 0-
0.3 A)
• Adjustable Amplitude: adjustable up to 12 cm.
• Photogate Attachment: A photogate can be at-
tached to measure the frequency of the oscillator.
• Driver mounts on Dynamics Track or Rod Stand
• Rubber washers on mounting bracket provide qui-
eter operation on the dynamics track.
• Optional Push/Pull Accessory (ME-8751):
Mounts to oscillator, replacing the string and al-
lowing the apparatus to be pushed as well as
pulled.
Operation of the Oscillator/Driver
➀
Mounting: The Oscillator/Driver can be mounted to a
dynamics track to drive dynamics carts or it can be
mounted on a rod stand for driving other apparatus.
See Figures 1 and 2. Tie one end of a string to the
white plastic piece on the driving arm and thread the
other end of the string through the hole in the guide.
The level of the guide can be adjusted by about 5.5 cm
to match the height of the object to be driven.
Figure 1: Oscillator/Driver Mounted on a Rod Stand
Figure 2: Oscillator/Driver Mounted on Dynamics Track
Power Source
Connectors
Harmonic
Oscillator/Driver
Rod Stand
Equipment
Offset
Driving Arm
Mounting Bracket
DC Motor
Photogate
String Guide
Harmonic
Oscillator/Driver
Power Source
Connectors
Dynamics
Track
String
String holder