Tech Note 234 Detail

Motion Sensor does not function on laptop w/ SW500 interface

Affected Products:

CI-6742

Problem/Symptom:
Motion sensor clicks, but the software records very small values when connected to a ScienceWorkshop interface on a laptop.

PASCO Solution:
The high-frequency noise generated by the switching power supplies on the laptops is conducted through the ungrounded power supply of the ScienceWorkshop 500 interface. This wrecks havoc on the signal to noise ratio of the interface to the extent that the motion sensor may not function at all. Contact PASCO Scientifc technical support to receive a #540-031 power supply.

Creation Date: 09/25/2001
Last Modified: 09/25/2001
Mod Summary: