根据仪表工作时各种随机干扰对检测信号影响大等特点，采用单片机将数据平滑方法用于液位检测信号数据处理中，有效地减小了各种随机噪声的影响。
Because there are various random interference affecting on detection signal, single chip computer is used for data smoothing to effectively eliminate the influence of random noises.
数据处理中，采用了去极值平均滤波的数字滤波方法，有效地抑制了随机干扰及脉冲干扰，增加了系统的稳定性，提高了测量精度。
To restrain random interference and pulse interference and improve measurement accuracy and stability, the digital filtering method which average the data crossing the extremum out is adopt.
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