数字仪器
- 与 数字仪器 相关的网络例句 [注:此内容来源于网络,仅供参考]
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a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.
摘 要:提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案,采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元,阐述利用vc编程实现的电力系统多样信号的产生流程,分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级,由于其准确性和多功能性将加快电能质量标定的步伐。
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Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.
主要有以下几个方面:设计了基于GPIB的示波器控制系统,给课题的研究工作提供了一个良好的环境,它采用了多线程编程的方法,能够较好的实时显示当前波形并记录数据;设计了温度采集和数据记录系统,能够对16路温度信号进行并行同步的实时采集,用于HIFU剂量学研究中温度场检测和医疗评价;设计了相控阵相位延时电路并且通过调试,满足了课题的相位控制的要求,在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制;实现了串口通讯模块,为各项设备与计算机之间的通讯提供保证,它提供同步和异步的通讯能力,使系统能够可靠稳定的传输数据;建立了数字量控制模块,为上层应用程序提供一致的方法使用数字接口控制外部仪器,它使用中断的方式来接收输入或输出设定的开关量信号,从而得到或设定各种仪器的状态。
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Digital cymometer whether one examine into signal digital measuring instrument of frequency with the decimal system digital display.
摘要数字频率计是一种用十进制数字显示被测信号频率的数字测量仪器。
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The digital Cymometer is one kind with the decimal digital demonstrated is measured the signalling frequency the numeral metering Equipment.
数字频率计是一种用十进制数字显示被测信号频率的数字测量仪器。
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Some measurements and analyses of the electric parameters of arc welding power supply have been done using this system.
论文研制开发的多功能弧焊电源检测系统以虚拟仪器为技术平台,系统整合了包括电子技术、计算机技术、传感和检测技术、数字技术和虚拟仪器技术等在内的现代信息技术。
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LabVIEW application environment is adopted for implementation of local instrument control. Programmable instruments such as function generator, multi-meters, and oscilloscopes have been linked to the computer through general purpose interface bus.
采用LabVIEW应用程序开发环境对本地仪器进行控制,并通过GPIB接口将可程控仪器,例如:函数信号发生器、数字万用表和示波器等设备连接到计算机上。
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Our technological equipment is rich, including global satellite positioning system GPS, geological radar meter (SIR-20, EKKO), seismograph, infrared detector (NEC-TH9100), ultrasonoscope, building structure diagnose apparatus, proton magnetometer, atomic absorption apparatus, ion chromatograph, gas chromatography, niton survey meter, and etc.
中心拥有各类先进的检测和探查仪器,如:GPS卫星定位仪、全站仪、数字水准仪、美国SIR-20地质雷达仪、加拿大EKKO地质雷达仪、地震仪、NEC红外热像仪、超声波检测仪、质子磁力仪等物探测量仪器,以及原子吸收仪、离子色谱仪、气相色谱仪、氡气探测仪等化学、放射性检测仪器。同时,不断加大对科研经费的投入,引进和开发地质雷达探测、瞬态面波探测、高密度电法等物理探测、远红外成像检测、GPS动静态定位技术、水土环境监测、研发高难度废水处理工艺、地质灾害防治措施及科技考古技术等新方法。
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Title THE DESIGN OF VIRTU OSCILLOSCOPE Abstract Virtual instrumentis combines computer science,bus technology,software engeneering with measurement instrumentation techology,employes the computer's powerful digtal process compability to realize main function of instrument.
虚拟示波器设计摘要:虚拟仪器是将仪器技术、计算机技术、总线技术和软件技术紧密的融合在一起,利用计算机强大的数字处理能力实现仪器的大部分功能,打破了传统仪器的框架,形成的一种新的仪器模式。
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According to the technology of designing intelligent insrumentation,the new calibration insrument is based on DSP processor, adopts digital sampling and advanced sinal processing technology.
仪器按照智能化的设计方法,结合数字采样技术,以DSP微处理器为核心,采用先进的数字信号处理方法,仅用一台仪器即可实现电流互感器的现场校验。
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Our main products are: Digital Board with RF coaxial cables, digital bureaux symmetrical RF cables, high frequency coaxial cable, digital communications cable symmetrical, high-frequency digital transmission cables, security cables and industrial inspection, multi-structure control of an integrated multi-core cable , multimedia cables, cross-linked communications cables, control cables, shielded cables, electrical lines installed, UL electronic lines, plant rooms and so on with flame-retardant flexible cables, common backbone network cables, network cables ordinary slip, elevator cables, instrumentation cables, PTFE high temperature cables, ultra-five twisted-pair, program-controlled switchboard wiring cables, high frequency cables, low smoke zero halogen cables, various types of flame-retardant and fire-resistant cables, nylon jacket line, car line, data transmission cables, HFC access network using coaxial cable, 75 ohm foam Physics Series, CATV coaxial cable, 50 ohm series of RF coaxial cable, low loss 50 ohm series of physical foaming coaxial cable, control cable, rubber cable sets , electric welding cables, silicon rubber cables, marine cables, mining cables, PVC insulated wire and cable, computer cable, power cable, electrical wiring primer, rubber insulated wire, woven wire, high temperature wire, XLPE cables ship cables, high temperature cables, such as fire, at the same time to take a special type electric wire and cable products specifications to develop a business.
公司主要产品有:数字局用同轴射频电缆,数字局用对称射频电缆,高频同轴电缆,数字通信对称电缆、高频数字传输电缆、保安与工业检测电缆、多重结构多芯控制综合电缆、多媒体电缆,交联通信电缆,控制电缆,屏蔽电缆,电器安装线, UL电子线,机房等场合用阻燃软电缆,普通主干网络电缆,普通支路网络电缆,电梯电缆,仪器仪表电缆,聚四氟乙烯高温电缆,超五类双绞线,程控交换机配线电缆,高频电缆,低烟无卤电缆、各类阻燃和耐火电缆、尼龙护套线、汽车线、数据传输电缆,HFC接入网用同轴电缆、物理发泡75欧姆系列、CATV同轴电缆、50欧姆系列RF同轴电缆、低损耗物理发泡50欧姆系列同轴电缆,控制电缆、橡套电缆、电焊机电缆、硅橡胶电缆、船用电缆、矿用电缆、聚氯乙烯绝缘电线电缆、计算机电缆、电站用电缆、电机引接线、橡皮绝缘电线、编织电线、高温导线,交联聚乙烯电缆船用电缆、耐高温防火电缆等,同时承接特殊型号规格电线电缆产品的研制、开发等业务。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。