测量精度是评价试验数据可靠性的重要依据。它是通过试验误差的分析和估算而得出的。本文列举了误差的来源和种类,论述了误差估算和合成的原则,并给出估算潜水电泵试验中的系统误差、偶然误差以及试验后总不确定度的公式。此外还提供了一定数量的潜水电泵的试验数据,从而验证了上述的分析方法和各项公式。 Measurement accuracy is an important basis for evaluating the reliability of experimental data. It is derived from the analysis and estimation of experimental errors. This article lists the sources and types of errors, discusses the principle of error estimation and synthesis, and gives the formulas for estimating system error, accidental error and total uncertainty after the test. In addition, a certain number of submersible pump test data are provided to verify the above analysis methods and formulas.