本文正是基于此提出：1）用无差动法插削加工斜齿轮；
The paper just basing on this put forward:1)No differential way to shape bevel wheel;
介绍了基于激光位移传感器与电涡流位移传感器的位移差动法在线检测纸坯厚度的原理及测量系统的软硬件设计。
The principle of paper thickness on-line measurement using displacement differential method based on laser displacement sensor and electric eddy current displacement sensor is introduced.
在应用无差动法滚切斜齿圆柱齿轮的基础上，通过理论推导和实验验证，得出进一步减少斜齿轮齿向误差的可行的挂轮选配新方法。
Through theoretical derivation and experimental verification, a new method is obtained for further reducing tooth curve error of oblique gear and for choosing feed gear wheel.
本文采用解析法导出了这种差动机构中拔取罗拉的位移，速度和加速度的方程式。
The analytical method is applied in deriving equations for the displacement, velocity and acceleration of the detaching roller installed in the differential mechanism.
差动保护电流回路接线是否正确，可通过相量分析法和带负荷检验法进行判断。
The wiring correctness of differential protection current loop can be verified using phasor analyzing method and on load testing method.
提出了一种适用于输电线路差动保护抗电流互感器(TA)饱和的新方法——电流极性比较法。
A new countermeasure to current transformer (TA) saturation, namely, current polarity comparison method, for differential current protection of transmission line is proposed.
介绍了用差压环流法测量变压器差动保护相位的理论依据及方法。
This paper introduces theoretical basis and method of measuring transformer differential protection phase by transformer differential circulating current method.
方法：形态鉴定及差动热分析法。
Methods: Morphological identification and differential thermal analysis (DTA).
研究了转子位移无传感器检测的两种方法，即小信号注入测试法和差动变压器测试法。
Two methods, which are called as a small test-signal injection and the differential transformer, are studied in order to detect the rotor displacement without sensor.
基于差动原理对HF酸恒定化学蚀刻速率法进行改进，以降低环境(温度、HF酸浓度等)变化对测量结果的影响，从而提高测量效率和测量准确性。
Constancy of chemical etch rate method was modified so as to reduce the influencing factors such as temperature and concentration of HF acid. The efficiency and accuracy are improved.
差动保护电流回路接线是否正确，可通过相量分析法和带负荷测六角图检验法进行判断。简要介绍这两种方法，并介绍了利用潮流方向验证六角图的方法。
The wiring correctness of differential protection current loop can be verified by using phasor analyzing method and on load test method. These two methods were described.
结果表明，这一方法能较全面地反映出摇床的差动特性。
The result shows that this method can reflect the non-symmetric vibrating property of shaking-table more completely than using other methods.
就干涉法、自准直法和全内反射差动探测法等测量方法的原理及特点进行了讨论。
These methods include interferometry, autocollimators, and differential detection based on the internal reflection effect.
本文在比较各种板厚测量方法的基础上，根据成象原理着重论述了差动式激光三角法测厚技术，讨论了聚先进键和咸象系统结构参数的设计，分析了板材抖动产生的动态测量误差，并提出自动补偿的途径。
The design prameters of focus lens and image system are given, and the dynamic measurement error in vibration of the plate is also analyzed, and the way of its autocompensation is presented.
本文在比较各种板厚测量方法的基础上，根据成象原理着重论述了差动式激光三角法测厚技术，讨论了聚先进键和咸象系统结构参数的设计，分析了板材抖动产生的动态测量误差，并提出自动补偿的途径。
The design prameters of focus lens and image system are given, and the dynamic measurement error in vibration of the plate is also analyzed, and the way of its autocompensation is presented.
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