Most applications involve simultaneous stabilization on three orthogonal axes . 大多數(shù)應(yīng)用要求在三個(gè)相互垂直的軸上同時(shí)進(jìn)得穩(wěn)定。
The specimen is mounted in a special holder which fits into the bore of the objective lens and enables the specimen to be tilted through angles greater than 30 about two orthogonal axes so that appropriate crystallographic analyses can be carried out 樣本被架在特殊的支架上,支架被放置在目標(biāo)透鏡的圓孔中,使得標(biāo)本傾斜的角度能夠超過(guò)30穿過(guò)兩個(gè)正交的角,然后適用的晶體學(xué)分析再展開(kāi)。
As a non - linear and multi - coupled system , the control of the ac induction motor ( acim ) has long been challenging . thanks to the vector control algorithm , acim can offer the same control capabilities and dynamic performance as traditional high - performance dc motors . with the vector control algorithm , the stator current of acim can be expressed in two orthogonal axes , and thus the rotor flux part and torque are de - coupled 交流感應(yīng)電機(jī)難于控制是因?yàn)樗且粋€(gè)非線性、多耦合的系統(tǒng),矢量控制算法通過(guò)坐標(biāo)變換將異步電機(jī)的定子電流分解為轉(zhuǎn)子磁鏈方向和與之垂直方向的兩個(gè)分量分別進(jìn)行控制,從而實(shí)現(xiàn)轉(zhuǎn)子磁通和轉(zhuǎn)矩的解耦,使得交流感應(yīng)電機(jī)的動(dòng)態(tài)性能可以和直流電機(jī)媲美。