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Chemistry LibreTexts

Signals and Noise/DAQ Lab

General Signal and Noise references:

  1. Be able to explain what the S/N ratio represents; know how to calculate it, and how the relative ratio can be increased.

  2. Know the five types of noise and characteristics in which to reduce noise.

  3. Discuss ways to improve the S/N ratio both via analog and digital signal processing. Be able to use the ensemble averaging formula to determine the number of scans needed to improve the S/N ratio by a known numerical amount.

  4. Be able to discuss potential problems associated with signal processing.