E601型蒸发器观测值出现负值原因分析

Analysis on Reasons of Negative Observation Value for E601 Type Evaporation Pan

从理论上讲,E601型蒸发器观测记录更具有实际代表性,但常会因一些其他原因引起观测记录和计算偏差,蒸发量出现负值就是这种偏差现象之一。对蒸发器观测值出现负值的现象进行了技术上的探讨分析,并提出了减少负值出现的注意点。只有经常注意各种影响因素,正确操作,才能保证蒸发量的准确观测。

Theoretically speaking, E601 type evaporation pan observation records can produce more representative features in actual application. But inaccurate observation records and calculation will be caused by some reasons. The negative value of evaporation amount is one of these deviations. The author makes analysis on the negative deviation of evaporation observation value, and puts forward problems that should be given attention to reduce negative values. Only by paying attention to influence factors frequently, correct operation can insure correct observation for evaporation amount.