在线检测；预行程误差；BP神经网络； 误差预测； 误差补偿；

On-line inspecting system; Pre-travel error; BP neural network; Error prediction; Error compensation;

youdao

根据测头误差产生的机理，通过对测头不同触发区间触发力的分析，得出不同触发区间预行程量的计算公式。

All kinds of error sources will effect the on-machine measure system precision were introduced in the forth part of the paper, especially the error from the trigger probe.

youdao

根据测头误差产生的机理，通过对测头不同触发区间触发力的分析，得出不同触发区间预行程量的计算公式。

All kinds of error sources will effect the on-machine measure system precision were introduced in the forth part of the paper, especially the error from the trigger probe.

youdao