Analysis and calculation of systemic error of voltage difference method in the calibration for heavy dc sensors

摘要

A method of analysing and calculating the systemic error of voltage difference method in the calibration for heaby dc sensors is developed. For both current-voltage sensor and current-current sensor, the expressions for their systematic error are derived. The definition of the methokical error are discussed. The rules for the reasonable selection of parameters of the equipments used for the calibration system are given.