放大

This paper designed a p re2amp lifying circuit system. The system was composed of p re2amp lifying circuit and filter circuit.

设计了OLED量子效率测试的前置放大电路系统，包括前置放大电路和带通滤波电路两个部分。

The 6V6-GT is a beam-power pentode designed for use in the audio-frequency power output stage of television and radio receivers.

是一支功率放大束射四极管，被设计用于电视机和收音机的音频放大功率输出级。

This model adapts the prior information of piecewise continuity of image to construct a nonlinear diffusion model,which is used to smooth an enlarged image by nearest interpolation to reduce the blocky effect caused by enlargement,simultaneity,and interpolation condition is added into the iterated process to avoid a too smooth image.

新模型利用图像为分片连续的二维曲面的先验信息，采用非线性扩散方程对基于最近邻方法放大后的图像进行光滑以消除因放大引起的"块状"效应，同时在迭代过程中加入插值条件使处理后的图像能较好的保留边缘，由此构造出基于偏微分方程的图像分辨率增强模型和相应的迭代算法，使图像的分辨率增强到亚像元级。

This design are composed of pre-amplifier, after-amplifier, and the modules of display and control based on microcontroler.

本设计由前级放大电路、后级放大电路和单片机显示与控制模块构成。

Methods Magnifying endoscope in combination with methylene blue staining were used to observe the micro-structures of gastric mucosa in patients with gastric protrusive erosion. 80 cases with gastric pit types D, E and F were treated with APC-9800. Observed the clinical results and value of APC. One month after treatment, the patients were once more observed under magnifying chromogastroscopy and evaluated clinical effects.

应用放大内镜结合美蓝染色，对胃炎伴隆起糜烂的患者进行胃黏膜细微结构形态学观察，将胃小凹为D、E和F型的80例患者纳入治疗，应用APC9800型氩气刀对病灶进行治疗，观察治疗的临床结果及价值，并于治疗后1月放大染色胃镜复查随访疗效。

this paper introduces a lossless detected circuit system.firstly,system gathers slender infrared signal with transducer,then amplifies them with low noise.through voltage comparator circuit,transforming simulation objection signals to digital signals.finally,transforming transport landscape orientation and portrait to single chip processing.in design of pcb,the amplifying of quadruplet signal,filter,voltage comparator decree and and logic function are manufactured in one board.if the diameter of workpiece is long,it can add multiple the number of transducer of four,to wide its range of practice,disposing circuit only need one module.

摘 要：介绍了一种无损检测的电路系统。系统首先利用传感器采集到微弱的缺陷信号，再将缺陷信号进行低噪声放大，然后通过电压比较判决电路将模拟缺陷信号变换成数字信号，最终将横、纵两路的输出信号送至单片机处理。在pcb设计中，将四路信号的放大、滤波、电压判决以及与逻辑功能做在一块板上，若被检测工件的直径较大，可以将传感器的个数以四的倍数增加，处理电路只需增加一个模块。

High-frequency continuous modulation on the high-power semiconductor laser is required in our ladar system. The theory and driving methods of the semiconductor laser is summarized in this article. Two kinds of driving circuit including linear power amplifier and resonance power amplifier are designed for continuous and quasi continuous modulated laser.

针对研制的无扫描激光雷达系统，需要对大功率半导体激光器进行高频连续调制，本文总结了半导体激光器的原理和驱动方法，并针对连续和准连续调制大功率激光器的特点分别设计了两套驱动电路，包括线性功率放大驱动电路和谐振功率放大驱动电路。

When scaled to large sizes the effect was comical鈥攕ince these fonts were bitmapped, they would scale the same way any raster graphics image does, becoming blocky.

当比例放大到大字号的时候，效果就非常糟糕？？因为字体是点阵式的，字形被放大成马赛克式的锯齿。

This paper puts forward the derivation of precise calculating formula used to determine the magnification ratio of voltage, input resistance and output resistance in amplifying circuits based on the feedback circuit model with parallel voltage.

在建立电流并联反馈电路模型的基础上，推导出放大电路中的电压放大倍数、输入电阻、输出电阻的精确计算公式。

We have designed a linearization revisal circuit of the electric charge amplifier and the signal processing circuits based on the analysis of the principle of the PVDF Piezo-Film and electric charge amplifier from a viewpoint.

分析研究了PVDF压电薄膜的压电方程，推导出了压力与输出电荷的关系，在此基础上设计了电荷放大电路，并对电荷放大电路进行了线性化修正。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。