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四、误差分析金属转子流量计包括测量部分(传感器)和转换两部分。测量部分是将被测流量车之换为位移,而转换部分是将位移转换为标准信号(输出信号)输出。在实际测量中,由于各种因素影响,给测量带来误差,使输出信号的测量值偏离理论值。JJG 257—81和日本标准 JIS 287661都采用引用误差表示流量计示值误差。本规程也以引用误差表示流量计示值误差。流量计误差分配如下:
Fourth, error analysis Metal rotor flowmeter includes measuring part (sensor) and conversion of two parts. The measuring part is to change the measured flow car into displacement, and the conversion part converts the displacement into the standard signal (output signal) output. In the actual measurement, due to various factors, the measurement error, so that the measured value of the output signal deviation from the theoretical value. JJG 257-81 and Japanese standard JIS 287661 use reference error to indicate flow meter indication error. This procedure also refers to the error of the flowmeter indication error. Flowmeter error distribution is as follows: