The experiment came into use single light path critical angle method, output signals were detected by four-quadrant receiver, micro-displacement drive element were piezoelectric ceramics.
实验采用单光路临界角法，用四象限探测器探测输出信号，物面微位移采用压电陶瓷作为驱动元件。
A new method of reading the declination signal of gyros free rotor based on the four-quadrant sensor is introduced in this paper.
提出了一种陀螺仪自由转子偏角信号读取的方法，这种方法基于对反射光斑的四象限分割。
The system error introduced by the four-quadrant photocell and the error correction method are analyzed emphatically.
文中对测量误差进行了简要的论述，分析了四象限光电池引入的系统误差和修正方法。
The automatic four quadrant characteristic test system of centrifugal pump was introduced, and the implementation method of the hardware and software of the test system were given.
本文结合实际介绍了离心泵四象限运行特性曲线自动化试验系统的测试回路，并给出了测试系统的硬件方案和软件设计方法。
The production method of four-quadrant photocell and the relevant circuit and its working principles were introduced.
论文介绍了误差传感器四象限光电池的制作方法，并介绍了电路设计和工作原理。
A quadrant staircase structure (QSS) used as an encoded element can realize 57 different states, and it is expected to enhance the data density 6 times as high as the conventional method.
四台阶结构相位编码可以实现57个不同的数据态，有望将数据密度提高为传统方法的近6倍。
A quadrant staircase structure (QSS) used as an encoded element can realize 57 different states, and it is expected to enhance the data density 6 times as high as the conventional method.
四台阶结构相位编码可以实现57个不同的数据态，有望将数据密度提高为传统方法的近6倍。
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