Noise Reduction and Isolation in Measurement

Grounding, or connecting some part of an electrical circuit to ground ensures safety for personnel and it usually improves circuit operation. Unfortunately, a safe environment and a robust ground system often do not happen simultaneously. It takes planning based on systematically understanding how electricity behaves in various types of circuits. Preventing electrical shocks and electrical fires is the highest priority for ground circuits (high redundancy is one key feature), but the redundancies built into many electrical grounding systems occasionally limit certain kinds of connections for input to data acquisition systems.

Noise Reduction and Isolation white paper tells that controlling noise in measurement systems is vital because it can become a serious problem even in the best instruments and data acquisition hardware. Most laboratories and industrial environments contain abundant electrical-noise sources, including AC power lines, heavy machinery, radio and TV stations, and a variety of electronic equipment.

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2 Comments

  1. vacuum cleaners says:

    Very nice post. I absolutely appreciate this website.
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    Reply
  2. Tomi Engdahl says:

    Grounding for Test and Measurement DevicesGrounding for Test and Measurement Devices
    http://digital.ni.com/public.nsf/allkb/4A441BC4E49541F4862573A000789203

    This KnowledgeBase provides general guidelines for installing National Instruments test and measurement equipment that require a connection to the facility grounding system for the purpose of enhancing electromagnetic compatibility (EMC) performance in accordance with the product documentation.

    Reply

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