针对磁致伸缩材料的非线性响应特点，设计了定偏闭环反馈系统，使探头始终工作在最佳偏置磁场下。
The negative feedback system with fixed bias is designed based on nonlinear response of the magnetostrictive materials so as to keep the sensor work at its most sensitive situation.
探讨了给定行程速比及滑块行程的偏置式曲柄滑块机构具有最佳传动性能的设计方法。
This paper describes the design method of deflection crank slider mechanism of the given stroke velocity rate and slider stroke, which has optimum transmission performance.
试验表明，将分隔屏组合偏置，效果最佳，可使水平烟道内速度不均匀系数下降达85％ 。
Under the condition of experiment in the paper, the best way is to compose biasing SH panels, and it makes the velocity deviation coefficient reduce 85%.
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