英语释义

1. an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits

片语

Switched Preamplifier开关前置放大器

biophysical preamplifier生理前置放大器

receiver preamplifier接收机前置放大器

differential preamplifier差动前置放大器

preamplifier noise前置放大器杂讯

parametric preamplifier参量前置放大器

Current Preamplifier电流前置放大器

V preamplifier调谐器

preamplifier stage前置放大级

英汉例句

• the preamplifier consists of the audio-frequency power amplifier lm386.

  前置放大器由音频功放lm386组成。

• we designed a large current ac constant current source of low frequency, and an electronic preamplifier with high sensitivity for the use of the instrument.

  仪器中设计了大电流低频交流恒流源，高灵敏度前置放大器，并用单片机软件代替了大量电子线路的功能。

• it is a switch capacitor circuit which consists of the preamplifier and dynamic latch.

  比较器是前置放大器与动态锁存器组成的开关电容电路。

• in modern electrometers, the preamplifier output terminal is such a point, and can be used to reduce the effect of cable leakage, as shown in figure 2-5.

  在现代的静电计中，前置放大器输出端就是这样的一个节点，并可以用来降低电缆泄漏的影响，如图2-5所示。

• experimental tests indicate that the preamplifier can be used for stm topography measurement and nim impedance measurement simultaneously.

  测试表明，该前置放大器能同时用于nim阻抗测量和stm形貌扫描；

• during testing process, low-noise preamplifier is adopted to lower the background noise for the testing system.

  采用低噪声前置放大器使整个系统的背景噪声充分降低；

• the system includes: 1) preamplifier and preprocessing, 2) data acquisition (a/d converter), 3) programmable auditory stimulator, 4) ibm pc-based analysing and processing system.

  该系统包括：1）前置放大器及预处理，2）数据采集（a/d转换），3）可编程序声音刺激器，4）ibmpc分析处理系统。

• the author's solution to this problem is to use a tuneable rf preamplifier which also acts as a low pass filter when tuning the low end of the 88-108 mhz band where most of the exotic channels lie.

  作者的解决这个问题是使用可调谐射频前置放大器这也渠道作为一个低通滤波器调谐88-108兆赫时，低端的带异国情调的地方大部分的谎言。

• matching a inductive magnetometer with its preamplifier is the keyest technique in magnetotelluric sounding system.

  感应磁力仪与前置放大器之间的匹配问题是大地电磁测深仪中最关键的一项技术。

• acceleromater, preamplifier and display are installed in a pocket-size vibration mete.

  前置放大器和显示安装在口袋大小的振动查处。

• based on the structure of classical instrumental amplifier, a preamplifier for the measurement of eeg signals is improved and designed.

  基于经典的仪表放大器基本框架，改进和设计了一种可用于心电信号采集的前置放大器。

• a new low noise, fast charge sensitive preamplifier developed recently is introduced in brief in this paper.

  简要介绍了新型低噪声快电荷灵敏前置放大器。

• during the detector and preamplifier acquire nuclear information and wds convert the analog signals to digit value, the nuclear signals will inevitable be distorted to make the final result worse.

  在核探测器和前置放大器获取核信息及波形数字化系统将模拟核信号数字化的过程中，都不可避免地会使核信号发生畸变，影响测量结果的精度。

• detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.

  检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。

• the first scheme: using the preamplifier for receiving the consecutive signal.

  第一种方案：采用通用的用于连续信号接收的前放芯片。

• the comparator includes a preamplifier , a dynamic latch and a clocked inverter.

  该比较器包含一级预放大器、动态锁存器及时钟控制反相器。

• have designed the concrete drive circuit of led light sources and the concrete circuits of preamplifier and subtracter, etc.

  设计了具体的led光源的驱动电路，以及前置放大器、减法器等的具体电路。

• some effects are achieved. in the meantime, the possibility of using the study result for the preamplifier of co2 coherent laser radar is also analyzed.

  同时指出了这种连续波弱信号co2激光放大研究用于co2相干激光雷达前置放大器的可能性。

• preamplifier is one of the most important components in photoreceiver front-end. it directly affects the performance of light receivers such as speed, noise and sensitivity.

  前置放大器是光接收机前端中最重要的组件之一，它直接影响光接收机的速度、噪声、灵敏度等整体性能。

• the same basic circuit configuration shown in figure 1-8 can be used as an input preamplifier for a nanovoltmeter.

  与图1-8所示相同的基本电路结构也可以用作纳伏表的输入前置放大器。

• preamplifier and filter were used for cancellation of respiratory ecg, body interference.

  利用前置放大器和滤波器有效滤除掉呼吸，心电，人体等干扰。

• these cards include a built in preamplifier and are controlled through a microchip processor.

  这些卡中包含一个内置的前置放大器，是通过一个微芯片处理器来控制的。

• the model 500 incorporates stereo line-level inputs and outputs that permit the amplifier to be connected between a preamplifier and amplifier without the need for y-connectors.

  型号500包含了立体声线性电平输入和输出，这能够使扩音器在前置扩音器与扩音器间连接，不需要y型连接器。

• a method that charge sensitive preamplifier used in apd detection system of laser pulse was presented to enhance the range and precision of the detection system.

  提出了电荷灵敏前置放大器应用于apd激光脉沖探测系统以提高探测距离和探测精度的方法。