梯度使气流方向测量值向负梯度方向偏转。 圆柱探针和锥形多孔探针相比，气流方向测量误差对速度梯度更敏感，纵向梯度对俯仰角测量值的影响尤其大。
The velocity gradient, especially the perpendicular velocity gradient, leads the measuring error of flow angle with cylindrical probe to be larger than with conical multi-hole probe.
但由于加工误差、驱动结构不对称、扰动等因素，使得活动梳齿相对固定梳齿发生偏转。
However, due to fabrication error, asymmetric drive structure, small disturbance and so on, the movable comb fingers move laterally and rotationally from the fixed ones.
提出由动态偏转角误差推导测头动态位移误差的方法。
A method for obtaining the displacement errors of the probe from dynamic rotational errors is presented.
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