Aimedat tri-coordinate ultra precision machining, a stage used for tri-coordinate non-traditional machining was designed, which realizes long travel tri-coordinate ultra precision machining.
Aimedat the less detection precision and the more errors arising from the common electric parameter detecting method, this paper proposes a synchronous sampling method and radix 2 FFT algorithm.
针对普通电参数检测方法检测精度低、误差大的缺点，提出了一种同步采样法和基2 FFT算法。
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Aimedat the conflicts of high speed, high precision and low noise, the improved design for structure joint ways of the motor and variable pump was proposed.