PASCO WA-9855 User manual

Wave Driver (WA-9855)
Features:
Drive post
Rod clamp
Fuse holder
Banana jacks
Included equipment:
•Wave Driver (WA-9855)
•Elastic cord
•Extra fuses (2)
Required equipment:
•Banana Plug Patch Cords (SE-9751)
•One of the following function generators:
-550 Universal Interface (UI-5001)
-850 Universal Interface (UI-5000)
-Sine Wave Generator (WA-9867)
-Function Generator (PI-8127)
Introduction
The Wave Driver is a strong, long-throw speaker with an
attached drive post. The top of the drive post has a slotted hole
into which the included elastic cord can be directly inserted. The
speaker will vibrate at any frequency from 0.1 Hz to 5 kHz, with
amplitudes up to 7 mm peak-to-peak at the low end of the
frequency range.
The Wave Driver allows you drive wave experiments with ease
and accuracy. You will need a function generator with an
amplifier capable of producing a minimum of 8 V at 0.5 A. (The
Recommended equipment section lists function generators
provided by PASCO which meet this requirement.) The
waveform need not be a sine wave; other waveforms such as
square, triangle, or sawtooth can be used.
You can attach a wire or string to the Wave Driver directly, either
by inserting the wire or string directly into the slot on the drive
post and tying it off to a support rod, or by threading it into the
hole beneath the slot and tying it to the post itself. Other
accessories can be connected to the Wave Driver by inserting
their plug directly into the hole on the end of the drive post.
The Wave Driver is designed to sit upright, resting on the rubber
"feet" on the base. It can also be mounted on a rod up to 12 mm
(1/2 in) in diameter in either a vertical or horizontal position
using the rod clamp. The bottom of the wave driver also includes
a hole which can be used to mount the sensor upright on any
1/4-20 threaded rod. (See Figure 1.)
Figure 1. Options for mounting the Wave Driver
Operation
1. Connect the string or experimental apparatus to the drive
post by either of the following methods:
a. Tie the string or wire directly to the drive post, as
shown in Figure 2.
b. Insert the string or wire into the slot on top of the
apparatus, as shown in Figure 3, so that it is held in
place by friction. Tie the end of the wire or string to a
support rod.
Figure 2. Direct attachment to the drive post
Figure 3. Attachment to a support rod through the drive post
Product Guide | 012-17424A
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2. Plug the output from your function generator into the
banana jacks on the front of the driver.
3. Adjust the frequency and amplitude of the function
generator to produce mechanical waves with the desired
frequency and amplitude. The current should not under
any circumstances exceed 1.2 amperes!
Suggested Uses
Wave Demonstrators
Use the Wave Driver to drive a wave demonstrator, such as the
Transverse Wave Demonstrator (SE-9600).
Wave on a Wire or String
Use the driver to produce waves in a stretched wire or string.
Determine the resonant frequencies as a function of length, or
examine the relationship between wave velocity and the tension
and mass per unit length of the string or wire.
Chladni Plate (WA-9406)
Use the driver to vibrate sheets of metal and observe the
standing wave patterns that are formed at resonant frequencies.
Driven Harmonic Motion
Drive a mass hanging on a Longitudinal Wave Spring (WA-9401)
and compare the amplitude of the oscillations with the drive
frequency. To set up this exeriment, mount the wave driver on a
rod with the drive post facing downward, then thread a string
through the hole on the drive post and tie the string to one end
of the spring. Resonant modes of coupled oscillators can be
studied using air track gliders or carts on a track coupled by
springs.
Resonant Loops and Strips
Use the driver to vibrate a resonant loop to show standing waves
on a wire. You can also vibrate resonant strips to demonstrate
standing waves, harmonics, and the relationship between length,
frequency, and resonance.
Troubleshooting the Driver
If at any time the Mechanical Wave Driver fails to work, follow
these steps:
1. Check the fuse. If the fuse is "blown", replace it with a
similarly rated fuse: 1.0 A, 250 V. When replacing the fuse,
be sure that the fuse holder is fully tightened.
2. If the fuse is not "blown", check that the fuse holder is fully
tightened. If it is not screwed in all the way, power may not
be able to get to the unit even if the fuse is in working
condition.
Specifications and accessories
Visit the product page at pasco.com/product/WA-9855 to view
the specifications and explore accessories. You can also
download support documents from the product page.
Technical Support
Need more help? Our knowledgeable and friendly Technical
Support staff is ready to answer your questions or walk you
through any issues.
Chat pasco.com
Phone [phone] x1004 (USA)
[phone] (outside USA)
Email [e-mail]
Regulatory Information
Limited Warranty
For a description of the product warranty, see the Warranty and Returns page at
www.pasco.com/legal.
Copyright
This document is copyrighted with all rights reserved. Permission is granted to non-
profit educational institutions for reproduction of any part of this manual, providing
the reproductions are used only in their laboratories and classrooms, and are not
sold for profit. Reproduction under any other circumstances, without the written
consent of PASCO scientific, is prohibited.
Wave Driver | WA-9855
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Trademarks
PASCO and PASCO scientific are trademarks or registered trademarks of PASCO
scientific, in the United States and in other countries. All other brands, products, or
service names are or may be trademarks or service marks of, and are used to
identify, products or services of, their respective owners. For more information visit
www.pasco.com/legal.
Product end-of-life disposal
This electronic product is subject to disposal and recycling regulations
that vary by country and region. It is your responsibility to recycle your
electronic equipment per your local environmental laws and regulations
to ensure that it will be recycled in a manner that protects human health
and the environment. To find out where you can drop off your waste
equipment for recycling, please contact your local waste recycle or disposal
service, or the place where you purchased the product. The European Union
WEEE (Waste Electronic and Electrical Equipment) symbol on the product or its
packaging indicates that this product must not be disposed of in a standard waste
container.
CE statement
This device has been tested and found to comply with the essential requirements
and other relevant provisions of the applicable EU Directives.
Product Guide | 012-17424A
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