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CENCO® String Vibrator

Avg. Ratings: 2.0 (1 Review)

This reliable unit uses up to three strings, so students can perform Melde’s standing-wave experiments.

  • Unit Holds Its Frequency Consistently
  • Precision Model for Years of Reliable Use
  • Three Strings Can Be Used at One Time
  • Weights, a Table Clamp, and a Pulley Can Vary Tensions
  • Instructions Included
Varying tensions can be applied to the strings with a table clamp, a pulley, and weights. Several modes of vibration can be produced by adjusting the string to resonate at different frequencies.

The driving frequency is the line frequency of 60Hz. Set the unit on a table, fasten it to a wall, or mount it on a threaded support rod.

Ordering information: This kit includes a 1.6 m power cord and instructions. A mass hanger, mass set, and pulley with clamp are required but not included.


   
 

ORDER

Item # Description Input Voltage Unit Availability Price Quantity
160657 Cenco String Vibrator
110V Each Retrieving

ACCESSORIES


Accessories
Item # Description Includes Weight Unit Availability Price Quantity
153753 Slotted Mass Set
1 x 10 g, 2 x 20 g, 1 x 50 g, 1 x 100 g, 2 x 200 g, and 1 x 500 g Masses - Each Retrieving
158499 Clamp Pulley
- - Case of 60 Retrieving
Each Retrieving

Clamp Pulley
Item # Description Weight Includes Unit Availability Price Quantity
153753 Slotted Mass Set
1 x 10 g, 2 x 20 g, 1 x 50 g, 1 x 100 g, 2 x 200 g, and 1 x 500 g Masses - Each Retrieving
158499 Clamp Pulley
- - Case of 60 Retrieving
Each Retrieving

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REVIEWS (1)

Total Ratings: 1
Avg. Ratings: 2.0 out of 5

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Was this review helpful? Yes No
Yes: 0 No: 0 
Linda A Education / Lab Assistant / Missouri
No, I didn't recommend
We have several of these units that are over 20 years old. They work well. We ordered more and the new ones vibrate so strongly that it is impossible to see more than 3 nodes. The Tech team tried to help but their fixes were not adequate. When the metal bar vibrates it hits the unit below it and makes a horrible noise and is too rough for fine work.
Reply
WARDSCI.com associate Published 08/25/2017
Thank you for your feedback. An alternative solution that may help is to use a thicker string and tie the knot to the metal plate so it is on the bottom. This will act as a cushion when the metal plate hits the electromagnet on the base and dampen the sound, but not interfere with the performance.
 
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