查询词典 signal board

CPLD is the core of the sampling audio board, which converts the analog audio signal in every channel to digital audio signal, then stores the audio data in the data buffer.

音频采集板以CPLD为核心，主要将各路模拟音频信号转换成数字音频信号，然后存入数据缓冲区。

The matching device automatic test-board is the checking tool checked the matching device capability, precision and reliability are the technique of the the matching device, the precision is the precondition of checking the matching device, the reliability is credibility degree of the decision checking consequent.the topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent ac to transfer dc module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2the feedback self-checking module is constructed by singlechip compositive 16 high accuracy a/d , established a closed-loop control system through this module and improved system's overall precision effectively.

匹配装置自动测试台是检测匹配装置性能的检测工具，其重要的技术指标是精度与可靠性，其高精度是作为检测匹配装置的前提，可靠性是决定了检测结果的可靠度。本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度a/d构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

The design collects affix an official seal to make circuit board Rogowski that make, undertake integral with signal of DSP logarithm word reductive give voltaic signal, with interpolation implementation measures synchronism.

设计采用印制电路板制作Rogowski线圈，用DSP对数字信号进行积分还原出电流信号，用插值法实现测量同步。

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。

The system can get the signal waveform parameters from the harmonic components of radius vector deviation, plot a curve of interpolation error by delivering magnified moiré fringe photoelectric signal to computer with digital acquisition board.

该系统可以利用数据采集卡，将放大后的莫尔条纹光电信号送入计算机，由向径偏差的谐波成分得到信号波形参数，绘出细分误差曲线。

The Board is available signal from machine A will remain closed until the board has left Machine A.

设备A有板的信号将持续保留到板离开设备A为止。

In chapter Ⅲ, the analog signal processing board and the data vibration acquisition board for rotating machinery have been built.

第Ⅲ章，建立了旋转机械的振动信号的模拟处理模块和数据采集模块。

The former is the core of hardware, it is based on industrial control computer that expended with analog signal input board and digital signals input and output board.

其中工控机是自动化测试系统的硬件核心，在工控机内扩展了数据采集卡和数字量I/O卡，完成对电源输入、输出信号的采集和对系统的控制。

Regular condition issues the transmitter measuring range as magnetism translates the board liquid place meter but looks at range , the transmitter form pole may flee about to move , 4 ~ 20 mA adjusting the transmitter form pole using the transmitter output signal are OK as magnetism translates the board liquid place meter but looks at range on the UB-B type transmitter being fixed according to what left picture shows with fastening circle translate the board liquid place in magnetism.

UB-B型变送器按左图所示用紧固圈固定在磁翻板液位指示计上，正常情况下变送器量程与磁翻板液位指示计计可视范围相同，变送器表杆可上下窜动，调整变送器表杆使变送器输出信号4~20mA与计可视范围相同即可。

Regular condition issues the transmitter measuring range as magnetism translates the board liquid place meter but looks at range , the transmitter form pole may flee about to move , 4 ~ 20 mA adjusting the transmitter form pole using the transmitter output signal are OK as magnetism translates the board liquid place meter but looks at range on the UB-B type transmitter being fixed according to what left picture shows with fastening circle translate the board liquid place in magnetism.

UB-B型变送器按左图所示用紧固圈固定在磁翻板上，正常情况下变送器量程与磁翻板计可视范围相同，变送器表杆可上下窜动，调整变送器表杆使变送器输出信号4~20mA与磁翻板计可视范围相同即可。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了