查询词典 amplification

A novel current supply for middleandlow power LD has been designed, which operates on the principles of voltagetocurrent conversion, current amplification,and current negative feedback.

本文作者设计了一种用于中、小功率LD的新型电流源，它的工作原理是电压／电流转换、电流放大和电流负反馈。

A novel current supply for middle-and-low power LD has been designed, which operates on the principles of voltage-to-current conversion, current amplification,and current negative feedback.

本文作者设计了一种用于中、小功率LD的新型电流源，它的工作原理是电压/电流转换、电流放大和电流负反馈。

It can be seen that besides the realization of the common-emitter gain, thus current amplification, the common-base properties were also improved due to the reduction of the common-base leakage current. We have attributed the improvement of the common-base properties and the realization of the common-emitter properties to the enhancement of the electron injection due to the utilization of the V2O5 interfacial layer.

研究发现，V2O5界面修饰层的引入明显地减小了共基极漏电流，使器件的共基极特性得到了进一步的改善，同时也使器件表现了共发射极特性，实现了电流的放大，我们已经把共基极特性的改善和共发射极特性的实现归功于界面修饰层的引入提高了电子注入的结果。

Actually ,signals are processed from low frequency domain to high one by modulation firstly and alternating current amplification secondly.It can also improve anti-interference抗干扰 ability of circuit and signal to noise ratio of signals.

实际中往往采用更有效的先调制而后交流放大，将信号从低频区推移到高频区，也可以提高电路的抗干扰能力和信实际中往往采用更有效的先调制而后交流放大，将信号从低频区推移到高频区，号的信噪比。

The structure of the design include a nucleus manipulator (AT89S52 ), the current, sampling, comparision amplification, A/D,D/A converter, keyboard display, and so on.

它以AT89S52作为核心控制器，包括电源、取样放大、A/D和D/A转换、键盘控制与显示等模块。

The meter immobilizes enzyme on the pole and detects the resultant weak current. After amplification, filtering, A/D conversion and the data processing based on MSP430, the measuring result is displayed on LCD.

仪器以单片机MSP430为核心，血糖和酶电极反应时所产生的微弱电流经过放大、滤波、A/D变换经单片机处理后，在液晶显示器上显示出测试结果。

The structure of the design include a nucleus manipulator (AT89S52 ), the current , sampling, comparision amplification, A/D, D/A converter, keyboard display, and so on .

本设计是基于单片机的一种数控电源，与一般电源相比具有宽范围电流输出、可修改性所需电流键盘输入、两级步进调节、输出电流及设定电流显示、负载两端电压显示、纹波系数小等特点。

When signals under test are 单击此处编辑母版标题样式 weak, in order to realize signals transmission especially for long distance, direct current amplification or modulation and demodulation may be adopted.

传感器输出的电信号一般为较低频率分量(在直流至几十千赫兹之间)，当被测信号比较弱时，为了实现信号的传输尤其是远距离传输，的电信号一般为较低频率分量(在直流至几十千赫兹之间)，当被测信号比较弱时，为了实现信号的传输尤其是远距离传输，可，当被测信号比较弱时以采用直流放大或调制与解调。

Thereafter B-A1 paste-layer diffusion technology and close-tube Ga-diffusion technology had been developed, while the former can lead to relatively large the base-region deviation and abruptly varied region in Si, which caused severe decentralization of current amplification parameter β, bad thermal stability and high tr; the latter needed the relatively difficult pack technique, with poor repeatability , high rejection ratio, and poor diffusion quality and production efficiency.

此工艺发明以来，克服了上述两者的弊端，杂质浓度和结深能准确控制而又能任意调整，可进行低、高浓度阶段性掺杂，得到元素Ga在Si中的理想分布，而且表面浓度均匀一致、重复性好、合格率和优品率高，改善和提高了器件的综合性能。

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。

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。