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  • Null Meter Application Guide Introduction
    For the new user, the Application Guides provide a basic understanding of the fundamentals of measurement process that use Null Meters. For the experienced user, the Application Guides provide a refresher on fundamentals but more importantly help the user moving from the use an older model null
  • Rationalizing Null Readings at Low Levels
    This Application Guide discusses the problems encountered when comparing nulls, especially nulls made in the micro-volt and nano-volt regions, between two null meters
  • Noise Reduction and Filtering Techniques
    This Application Guide discusses the use of filtering to improve null measurements when noise on the signal source makes measurements difficult or introduces error. This note also helps the experienced user compare a null meter with variable filtering with one that has fixed filtering
  • Input Bias Current Compensation
    This Application Guide describes the sources of input bias current on a high sensitivity instruments such as a null meter, the impact input bias current can have on measurements and how the user compensates for input bias current to minimize its impact on measurements.
  • High Sensitivity Bridge Connections
    This Application Guide discusses suggested instrument interconnections and supplemental filtering to allow maximum resolution when the AVM-2000, or other very high sensitivity null meters, are used in conjunction with such instruments as Reference Dividers, Kelvin Varley Dividers and other
  • Input Offset Voltage Compensation
    This Application Guide describes the sources of input offset voltage on a high sensitivity instruments such as a null meter, the impact input offset voltage can have on measurements and how the user compensates for input offset voltage to minimize its impact on measurements.

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