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本文从理论和实验上探讨了利用模拟流量板对核子秤标定的有关问题，提出了以点源和电离室为称重系统的核子秤理论模型。利用该模型得到了孩子秤的标定系数与秤架几何参数、电离室灵敏区长度以及物料对射线的质量吸收系数的关系。实验结果表明，利用模拟流量板对核子秤进行非实物标定在３％的误差范围内是可行的。
In this paper, the theoretical and experimental discussion of the use of analog flow plate on the scale calibration of nuclear issues proposed point source and ionization chamber for the weighing system of nuclear scale theoretical model. The model was used to get the relationship between the calibration coefficient of the scale and the geometric parameters of the scale, the length of the sensitive zone of the ionization chamber and the mass absorption coefficient of the material to the radiation. The experimental results show that it is feasible to use non-physical calibration of nuclear flow scale within 3% error range with simulated flow plate.