查询词典 feedback amplifier

Searching for a novel glass system with excellent thermal stability and good optical performances is an effective approach to achieve Er3+-doped fiber amplifier with broad bandwidth and flatting gains.

探求新的具有优良的热学和光学性能的基质玻璃系统，是获得具有宽带宽和增益平坦的掺Er3+光纤放大器的一种有效途径。

A sample-and-hold device consist of a operational amplifier with very high input impedance and a capacitor can establish a floatable base,therefore...

由高输入阻抗运算放大器和电容构成的采样保持器形成浮动的基淮，于是可实现自动调零。

It is a usual structure of focal-plane-array readout integrated circuit which uses a capacitance trans-impedance amplifier as the input stage, a correlated double sampling circuit to get signal and reduce noises, and a source follower circuit to output the signal.

焦平面读出电路的一种常用结构是以电容跨阻抗放大器作为输入级，相关双采样方式提取信号并抑制噪声，源跟随器方式输出信号。

Development and experimental study of the key parts of foreside control ultra high speed injection moldingThe designing theories and methods of microdisplacement actuator for controllable nozzle based on GMM are proposed. The designing process of such components as microdisplacement transfer and amplifier mechanism, driving coil and control circuitry is presented particularly.

前端控制式超高速注射成型关键部件的研制及相关实验研究提出了可控喷嘴用超磁致伸缩微位移驱动器的设计理论和方法，通过理论分析计算优化了驱动线圈和控制电路的设计。

When the beam current is below free-running start oscillation current, the results of the nonlinear simulation are consistent with the results of the amplifier's linear theory.

本论文所探讨均匀与非均匀半径结构的磁旋返波管，模拟结果显示操作电流低於自由起振电流非线性分析结果符合放大器线性理论，属於amplifier的操作区段。

Flexible hinges have the peculiarities of non-clearance, frictionless and high sensitivity, and is usually designed to be used and acted as a displacement amplifier.

柔性铰链具有无间隙、无摩擦和运动灵敏度高的特点，在微型机械中常用来作为位移放大器使用。

A set of equipment including a special shunt and a special amplifier are made up to measure the post-arc fulgurite current from which the post-arc fulgurite resistance is obtained.

本文通过自制试验设备测量熔断器中弧后残躯电流随时间变化的关系曲线，从而得到不同熔体材料采用不同的填充方法的弧后残躯电阻曲线。

A set of equipment including a special shunt and a special amplifier are made up to measure the post-arc fulgurite current from which the post-arc fulgurite resistance is obtained. Several fuses with different fuse material are used to measure their post-arc fulgurite resistance.

本文通过自制试验设备测量熔断器中弧后残躯电流随时间变化的关系曲线，从而得到不同熔体材料采用不同的填充方法的弧后残躯电阻曲线。

The sine and cosine signals induced on stator are amplified by instrumentation amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA, and the converted 16-bit parallel angle data and direction signal are transferred to DSP.

本设计中通过RC 振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过FPGA 实现数字逻辑控制以及地址解码，将转换后的16 位并行转角数据以及方向信号送入DSP 中。

In this design, a single-phase exciting signal generated by RC oscillatory circuit is applied to the rotor of synchro. The sine and cosine signals induced on stator are amplified by instrumentation amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA, and the converted 16-bit parallel angle data and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过FPGA实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。