1、

In the first part, the modeling of sample circuit, ideal switch and comparator using SPICE is completed.

第一部分为单元电路宏模型的构建,利用SPICE编程语言分别完成了采样保持电路、理想开关电路以及比较器电路的宏建立。

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2、

On the base of the popular sample circuit, an instrument can execute different functions by reworking the software.

在通用的采集电路的基础上,通过修改软件,可以实现不同仪器功能。

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3、

The average delay time per gate of the sample circuit is typically 2 ns.

样品电路的门平均延时的典型值为2ns。

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4、

A Sample Circuit for Improving the Properties of Gas Sensor

一种能改善气敏元件性能的取样电路

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5、

The experiment shows that under the action of sinusoidal voltage, current flowing through the sample is mainly caused by the motion of slow polarization effect that do not obey RLC circuit equation.

实验观察到在正弦外电压作用下通过样品的电流主要是不遵从RLC电路方程的慢极化效应所提供。

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6、

We choose xenon flash lamp as the illuminant, miniature fiber spectrometer served as the detector of transmission spectrum for water sample. Then, we design the measuring optical system, waterproof and sealed mechanical structure and measurement control circuit.

选用闪烁氙灯作为测量光源、微型光纤光谱仪作为水样透射光谱的探测器件,在此基础上进行了光学系统光机结构、防水密封机械结构和测量控制电路的设计。

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7、

The analog part includes the switch controlling circuits, driving circuits, operation amplifier, sample/ hold circuits, phase modulating circuits, unity gain buffer, current reference source, compensation capacity array, voltage conversion circuit.

模拟部分包含控制开关电路、驱动电路、前级运算放大器、采样保持电路、相位调节电路、单位增益缓冲器、基准电流源、电容补偿阵列、开关电压转换电路。

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8、

Such as harmonic distorted in front analog circuit, sample clock shaking, analog power and the noise in ground plane etc. Some suggestion of circuit design is given to improve high-speed A/ D circuit performance.

并在试验测试的基础上找出了影响高速模数转换电路转换性能的几个主要的因素:前端运放电路谐波失真、采样时钟抖动、模数电源及共地噪声串扰等。

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9、

In this paper design of some circuit including in A/ D circuit is also analyzed, such as front analog circuit, sample clock circuit and data flip-latch circuit. Find out the fact reducing a high speed A/ D circuit performance.

同时对高速转换器件及转换电路中包括前端模拟电路、采样时钟、后端数据锁存等辅助电路设计进行了分析。

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10、

The serial port circuit between the PC and the system is also designed to sample the signal of the sensors in real time for increasing the flexibility of the experiment.

电路中还设计了与PC机通信的串口电路,可以对传感信号实时采样,以增加实验的灵活性。

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11、

This paper gives the operation principle, the structure and the circuit system designs of the micromachined electrostatic servo accelerometer, and briefly describes its packaged sample.

本文详细介绍了微机械静电伺服加速度计的系统工作原理、结构和线路设计特点,并对其封装样品作了简要的叙述。

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12、

The method measuring electrical parameters is based on AC sample technology, the FFT way is used in software design, so the design of circuit, the function and the accuracy is fully improved.

三相电测量采用交流采样技术,软件算法采用快速傅里叶变换FFT,全面克服了以前的三相电参数测量方法普遍存在的实现电路复杂以及在功能和精度上的不足。

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13、

Both the data sample test and BCU analog circuit soft fault diagnosis test had proved the effectiveness and superiority.

数据样本测试和制动控制单元模拟电路容差软故障诊断试验证明了该方法的有效性和优越性。

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14、

The design of real-time power quality analyzer based on DSP and CPLD is dis-cussed in this paper. The application of CPLD in the optimizing design of the sampling control circuit is analysed in detail, and the non-synchronization sample data's isochronous algorithm is put forward.

提出了基于CPLD和DSP构架的实时电能质量分析仪的设计,着重讨论了CPLD在实时电能质量分析仪采样控制电路优化设计中的应用,并讨论了非同步采样的同步化算法。

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15、

the sweep trigger circuit can capture the start point of sample cycle, reduce the date processing work.

而扫描触发电路用于捕获采样周期的起始点,从而减少了数据处理的工作量。

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16、

in addition, the identify circuit in the data collection system can identify the position of the sample dots around the cable.

另外,数据采集器上的位置检测电路能检测电缆周向采样点的位置。

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17、

Finally, breaking experiments of the sample DC-CB' are done on LC oscillatory circuit in our lab, and the largest test current reaches 20 kA.

最后,本研究利用LC振荡回路模拟直流短路故障,对新型直流断路器样机进行了开断实验,最大实验电流达到20kA。

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18、

This AGC system adopts a VGA structure with CMFB and a peak-detect circuit having sample and hold function, and constructs a new-style exponential control circuit.

AGC环路中,采用了带共模反馈的VGA结构,包含一个改进的具有采样保持功能的峰值检测电路,并构造了一种新型的指数控制电路。

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19、

The error includes two sides, one is the calculation error about Wheatstone bridge circuit, and another is the effect of the sharp pulse producing when test current is loaded on the sample.

系统误差分析分为两个方面,一是与惠斯顿电桥电路有关的计算误差;二是测试电流脉冲加载时出现的尖脉冲引起的误差。

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20、

Based on the use of merging zone circuit and simulating a series of standard solution of uranium in organic phase, uranium in unknown organic phase sample was determined by flow injection spectrophotometry.

使用流动注射分光光度法,以合并带流路模拟有机相铀标准系列溶液,从而求出未知有机相样品的铀含量。

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