The answer depends on the motion detector you have. This type of damage is not covered under warranty.

Can Be Repaired

The transducer on a Go Direct Motion Detector can be replaced in the event of damage. However, there will be a repair fee. Contact support@vernier.com or call 888-837-6437 to set up the repair.

Go Direct Motion

Cannot Be Repaired

For the Motion Detector, Go!Motion, or Texas Instruments CBR 2, the black mesh/gold film transducers cannot be repaired if dented or punctured.

Motion Detector
Go!Motion
CBR 2

This is also true of older versions of the motion detector. See Which Motion Detector model do I have?.

Avoiding Future Damage

To avoid such damage, we recommend protecting your motion detector when doing simple harmonic motion experiments where weights are suspended over the sensor. A simple wire in-basket can be placed over the motion detector to protect the sensor without introducing interference. Other tips for good results:

  • Tape the mass to the spring so that it does not fall off.
  • Do not pull the mass to the bottom of the cycle, then release it up. Instead, start the oscillation by releasing the mass downward from near the top of the cycle.
Published: March 8, 2018. Updated: March 12, 2025.