磁势

The apparatus use Lm336 as constant voltage source, and it been converted to constant - current source by amplification, which provide current for the Hall probe. The non-idiostatic offset circuit use the bridge method to offset the circuit. So while the magnetic density is null, the output voltage of Hall probe is null too.

仪器采用恒压源经过放大器转换为恒流源，为霍尔探头提供工作电流；不等位电势补偿电路采用桥式补偿网络，补偿电压通过调节可变电阻获得，实现霍尔电势的幅值补偿，使外磁场为零时，霍尔探头输出电势为零；磁通电路主要提供对样品的磁特性测量，它由测量线圈和积分器组成。

The experiment result shows, when extra magnetic field B=0, and supply voltage VDS is constant, inequipotential potentials VHO of the nc-Si/c-Si heterojunction MAGFET are close to zero output with increasing absolute value of the gate biased voltage VGS. Adopting gate biased voltage to compensate inequipotential potentials, compared with extra compensation resistance method, could improve magnetic sensor sensitivity, when supply voltage VDS is -1.0 V, magnetic sensitivity can be improved by 18%.

实验结果表明，当外加磁场B=0时，工作电压VDS恒定时，随栅极偏置电压VGS 绝对值增加，纳米硅/单晶硅异质结MAGFET不等位电势VHO逐渐接近零位输出；采用栅极偏置电压进行不等位电势补偿较外加补偿电阻方法可以使磁传感器灵敏度得到提高，在工作电压VDS为-1.0 V时磁灵敏度约提高18%。

When a special function resolver is loaded, the additional air gap magnetomotive force due to the load current in output winding reduces the function pricision greatly.

当特种函数旋转变压器带负载时，输出绕组中出现的电流在气隙中建立的附加磁势，引起磁场分布畸变，导致函数精度显著下降。

The mathematical model of the magnetic scalar potential of a system for a magnetic monopole and magnetic medium sphere are introduced We can solve magnetization, magnetizing field and force of this system by using the model.

通过建立磁荷与磁介质球系统磁标势的数学模型，从理论上构建磁荷与磁介质球系统的一般框架，利用该模型可以引导分析均匀磁场中磁介质球的磁标势，磁屏蔽以及均匀磁化铁球等问题。

Based on Combination of the MMF equation and the branch current equation, an expanded equation about the winding currents and current-limiting reactances is obtained. According to the feature that the control windings are short-circuited in turn, the current-limiting reactances are calculated for each control winding step by step.

把磁势平衡方程和支路电流方程相结合，推导并得到了关于绕组电流和限流电抗的增广方程，再根据控制绕组顺次短路工作的特点，提出了CRT的各级限流电抗值的一种递推算法。

The DC sensing theory and method based on magnetic potential self-balance and feedback compensation are studied in this paper.

本论文研究了一种基于开环原理与闭环原理相结合的磁势自平衡回馈补偿式直流传感机理与方法及其实现。

RESULTS: We obtained the changes of the magnetic potential on the border and the distribution of the excited coil and the trend of the magnetic potential on the border.

结果： 获得了该模型的有限元方程、激励磁场的分布和边界上磁势的变化。

The DC sensing theory and method were studied based on the magnetic potential self-balance and feed-back compensation.

研究了一种新型直流传感机理与方法，包括磁势自平衡回路和补偿回路两个环节。

The tested results have validated the correctness of the theory of magnetic potential self-balance and feedback compensation dc sensor.

实验结果证实了磁势自平衡回馈补偿式直流传感机理和方法的正确性。

The innovative and unique points are as follows. The method of magnetic potential self-balance is put forward applying the characteristic of iron core''s rectangular magnetization curve. The different of ampere-turn is measured by the reasonable design of reactor''s iron core. The feedback compensation system is a closed loop without high gain.

其创新、独特之处在于提出了利用铁芯矩形磁化曲线的特性，建立起直流磁势平衡的思想方法，并通过对电抗器铁芯结构的合理设计，巧妙地实现安匝差检测，构成差流回馈补偿系统，而不是高增益的闭环系统。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷