DETERMINATION OF THE LINEARITY FINE STRUCTURE OF BRIDGE AMPLIFIERS BY MECHANICAL MEANS

A. Brüge

Abstract

In high-resolution investigations of bridge amplifiers, researchers at PTB using cascaded inductive voltage dividers recently detected a fine sawtooth structure in the characteristic curves of certain amplifier types. These results have now been confirmed using simple mechanical means. For many laboratories, the easy availability of the method presented here opens up the possibility of independently estimating the extent of the measurement uncertainty contributions caused by the sawtooth structure.

Keywords

bridge amplifier; linearity; sawtooth effect; water clock

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IMEKO-TC3-2022-009.pdf

DOI

10.21014/tc3-2022.009

IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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