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Vernier® Motion Detector

Avg. Ratings: 3.0 (1 Review)
Measure position, velocity, and acceleration.

  • Measure objects as close as 15 cm and as far away as 6 m.
  • Sensitivity switch reduces noise and produces higher quality data for studying dynamics carts on tracks.
  • Attaches easily to the Vernier Dynamics System.
  • Pivoting head allows for flexibility in the experiment setup.
The Motion Detector uses ultrasound to measure the position of carts, balls, people, and other objects.
You may also want to purchase the Motion Detector Clamp to attach the Motion Detector to a variety of objects such as table tops, ring stands, etc.

For educational use only.



Item # Description Unit Availability Price Quantity
470002-964 Motion Detector
Each Retrieving


Range 0.15 to 6 m
Resolution 1 mm


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Total Ratings: 1
Avg. Ratings: 3.0 out of 5

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Yes: 0 No: 0 
While they work most of the time, there are some that have stopped for unexplained reasons and they produce graphs that are jumpy either from being too sensitive and reading interference, or they just are very fragile. Using a flat surface to reflect the waves back to the detector helps, but there are still some problems. The new bluetooth GoDirect motion detectors seem to be better and graph better regardless of the surface reflecting the waves..
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