发明名称 Calibration method for an electronic electricity meter
摘要 Method of calibration of an electronic electricity meter including a converter (1) adapted to receive at least one analogue input signal (V) and to provide a digital output signal (Fout) dependant on at least the value of the input signal, characterised in that the analogue input signal is fed to the converter (1) via a gated resistance component (6), the resistance component being switched on and off according to a duty signal, the ratio of the on and off periods being chosen based on an external comparison of the input and output values (V, Fout) so as to calibrate the digital output value relative to the analogue input. <IMAGE>
申请公布号 ZA9802963(B) 申请公布日期 1998.10.21
申请号 ZA19980002963 申请日期 1998.04.07
申请人 SCHLUMBERGER INDUSTRIES LTD. 发明人 CONOR JOSEPH DEVANE
分类号 G01R35/04 主分类号 G01R35/04
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