良好的算法和传感器器件——绝对位移编码器的正确选取，对参数测量精确度的提高起到了极为重要作用。

The reasonable arithmetic and right choice of absolute displacement coder is of great importance in the improvment of system precision.

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目前水库闸门开度测量通常使用的是数字编码器，它的测量精确度高且使用绝对编码技术，得到广泛的应用。

At present, the measurement of sluice gate opening usually USES the digital encoder. It has the advantage of high measuring precision and USES the absolute coding method which makes it widely used.

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