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digital instruments     
相关语句
  数字仪表
     Making Vehicle Digital Instruments based on MCS 51 MCU
     基于51单片机的车用数字仪表设计与实现
短句来源
     Discussion on the Disturbing Problem of the Digital Instruments
     关于数字仪表干扰问题的讨论
短句来源
     Digital instruments are the development of indicating ones and are used widely in the field of the measurement and the automation.
     数字仪表是显示仪表的发展趋势,在测量和自动化等领域中得到广泛使用。
短句来源
     The traditional field mounted analog instruments are more and more replaced by intelligent digital instruments and controllers because of the appearance of fieldbus. This movement makes that the local control equipment offers digital network communication capability.
     现场总线的出现 ,使传统的工业现场模拟仪表逐步让位于智能数字仪表和控制器 ,使基地设备具备数字化网络通信能力。
短句来源
  数字化仪器
     The Paper introduces the application of digital instruments on deformation survey of Beijing Yin-Tai center foundation.
     本文介绍了数字化仪器在北京银泰中心工程基坑变形监测中的应用。
短句来源
     The digital data of earth resistivity in Mengcheng Seismostation are compared with analogue data in annual cycle and observational system. It can lay foundation for the combining application of digital and analogue data,and provide bases for the replacement of digital instruments to analogue ones.
     通过对蒙城地震台地电阻率数字化和模拟的标定资料、地电阻率观测数据、资料的年周期变化、以及数、模观测系统的系统差别等几个方面进行对比分析,为蒙城台多年的模拟与数字化资料综合使用以及数字化仪器替代模拟仪器观测提供依据。
短句来源
     With the development of scientific instrument and technical, digital instruments has been used in more and more fields, it has been attached more importance to signal sampling and signal processing.
     随着DSP技术在工程应用中的迅速发展,数字化仪器在越来越多领域应用,信号采样与信号处理受到更多重视。
短句来源
     On the basis of analyzing the technology of embedded software integrated development environment throughout the world, and aiming at the developing requirement of some digital instruments which have large potential market, this dissertation puts forward an embedded software integrated development environment to support the development of digital instrument.
     本论文在分析嵌入式软件集成开发环境国内外发展现状的基础上,针对若干个具有巨大市场潜力的数字化仪器设备开发需求,提出了一个面向数字化仪器设备的嵌入式软件集成开发环境。
短句来源
     DSP(Digital Signal Processing)has been widely used in various digital instruments and other fields.
     DSP即数字信号处理已应用于各种数字化仪器和其它领域。
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  数字仪
     1-Wire Addressable Digital Instruments for Environmental Monitoring
     1-Wire可寻址数字仪环境监测技术
短句来源
     Addressable digital instruments (ADIs) are new generation of transducers .
     可寻址数字仪(ADI)是新一代变送器。
短句来源
  “digital instruments”译为未确定词的双语例句
     The Analysis for Decreasing Quantized Errors of Digital Instruments
     减小数字式仪器量化误差的理论分析
短句来源
     The Design of Automatic Range Switching Circuit in Digital Instruments
     数显仪表的量程自动转换电路
短句来源
     Pneumatic instruments develop into electric instruments or intelligent digital instruments.
     在过程检测方面,测量仪表已由气动仪表发展到电动模拟仪表以及智能数字化仪表。
短句来源
     The digital signal made by DSP + FPGA system that is based on digital signal processing has many advantages, such as easy interface to modern digital instruments, high integrity and precision.
     利用DSP+FPGA设计的数字信号处理系统,具有与其他以现代数字技术为基础的设备接口方便、系统精度高、工作可靠的优点.
短句来源
     Digital Instruments and Their Uses in Geological Designing
     数字化仪及其辅助地质设计浅谈
短句来源
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  digital instruments
Systematic understatement of electronic readings is noted in the case of direct-conversion digital instruments.
      
Manual digital instruments for monitoring gear wheels
      
Measurement of shock pulse parameters by digital instruments
      
Frequency characteristics of digital instruments with discrete integration
      
Equipment for investigating and testing the metrological characteristics of digital instruments and their units
      
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The rotaion inertia of an object, being determined by calculation or experiment, is one of the basic parameters, which must be accurately realized, The swing-piriod measure instrument is an important component of the measuring system of the rotation inertia of an object. Having analysed the analogical product made in the Soviet Union, taking the user's requirements into consideration and by using the midscale MOS IC, we have improved the function of the instrument as follows. 1. The "discarded" numbers and the...

The rotaion inertia of an object, being determined by calculation or experiment, is one of the basic parameters, which must be accurately realized, The swing-piriod measure instrument is an important component of the measuring system of the rotation inertia of an object. Having analysed the analogical product made in the Soviet Union, taking the user's requirements into consideration and by using the midscale MOS IC, we have improved the function of the instrument as follows. 1. The "discarded" numbers and the "adopted" numbers are taken independently in one measurement; 2. The average measuring value of the swing-periods has increased only by changing the time base; 3. It has the "automatic restoration" as welt as the original "manual restoration" 4. We have the gate-indicating circuit instead of the conventional lamp indicator which is generally used in digital instruments. Because the MOS IC is used in the instrument, the reliability is improved by decreasing the volume, reducing the power consuption and improving the hermetic seal of the case and thus its ability to resist dampness and dust. The instrument is worked reliably when the period is longer than 0.1 second and the amplitude (p-p) lies the range of 1 to 12 volts, and the relative error in the instrument is less than 5×10~(-5).

物体的转动惯量是需要精确知道的物体参数之一。它可以用计算或实测两种方法确定。摆动周期测量仪就是物体转动惯量测量系统的重要仪器。在分析了苏联制造的相似产品以后,根据使用单位的要求和国产器件情况,我们研制的摆动周期测量仪中采用了中规模MOS集成电路,并对仪器的功能作了改进:使一次摆动中测量周期的“舍”数和“取”数独立选取;通过改变时基增加了测量若干周期的“平均值”;除了保留原有“手动复位”装置外,还增加了“自动复位”装置;用闸门指示电路代替一般数字仪器中常用的指示灯闸门指示装置。由于采用MOS器件,使得仪器体积减小、功耗降低、机箱密封、防潮防尘性能改善,有利于提高仪器可靠性。当输入脉冲信号周期大于0.1秒、幅度(p-p)在1—12伏范围内时仪器可靠工作,测量精度达到相对误差≤5×10~(-5)。

A joint research project on strong-motion earthquake studies between the People's Republic of China and the United States is in progress. As a part of this project, an experimental strong-motion array, consisting of twelve digital instruments, was deployed in the meizoseismal area of the Ms = 7.8 Tangshan Earthquake of July 28, 1976. From July, 3982 to March, 1983, a total of 285 near-source earthquake accelerograms were gathered from 133 earthquakes of magnitude ML = 1.2-6.2. Most of these accelerograms...

A joint research project on strong-motion earthquake studies between the People's Republic of China and the United States is in progress. As a part of this project, an experimental strong-motion array, consisting of twelve digital instruments, was deployed in the meizoseismal area of the Ms = 7.8 Tangshan Earthquake of July 28, 1976. From July, 3982 to March, 1983, a total of 285 near-source earthquake accelerograms were gathered from 133 earthquakes of magnitude ML = 1.2-6.2. Most of these accelerograms have recorded the primary wave and accurate time of arrival.The configuration of the experimental array and a representative set of near-source strong-motion accelerograms are presented in this paper. The set of accelerograms exhibited was obtained during the ML = 6.2 Lulong Earthquake of October 19,1982.Nine digital event recorders were triggered and good records were obtained. The epicentral distancs of the recording stations ranged from 4 to 41 km. The corresponding peak horizontal accelerations were respectively 0.232g and 0.009g. Based on the data recorded,a preliminary analysis is performed and several basic source parameters and attenuation law for near-source strong ground motion are presented.

国家地震局工程力学研究所与美国加州理工学院(C.I.T.),南加州大学(U.S.C.)以及地质调查局(U.S.G.S.)于1981年正式开始了一项中美双边强震观测的合作研究计划。作为这项计划的一部分,1982年6月底在中国唐山地震(1976.7.28,M_s=7.8)的余震区,布设了一个实验性的强震仪器台阵。这个台阵由12台三分量数字磁带记录式强震仪组成。从1982年7月至1983年3月,该台阵共取得了震级M_L=1.2—6.2的133个地震的285张近场加速度记录,其中大部分保留了初至P波和相应的精确到时。 本文介绍了实验台阵的运行情况和所获取的典型的近场加速度记录,展示了1982年10月19日卢龙M_L=6.2地震时距震中仅4公里的地点所获取的十分珍贵的近场加速度记录,其水平向最大加速度为0.23g,竖向最大加速度为0.128g。 本文还根据所获取的资料,进行了初步分析,给出了有关震源情况的若干基本数据和近场地震动的衰减规律。

In fhis paper, the design of a multiple-purpose data acquisi-tion system controlled by microcomputer is described. It is used for control-ling, acquisition, processing and displaying the analogue, frequency and time-interval signals input from the external devices. The zero drift and full scalecalibration are realized automaticaly. The system performs mathematical ope-rations in multiple-precision. Some special programs are executed to exploitpotontialities of the hardware. The tests to this system demonstrate...

In fhis paper, the design of a multiple-purpose data acquisi-tion system controlled by microcomputer is described. It is used for control-ling, acquisition, processing and displaying the analogue, frequency and time-interval signals input from the external devices. The zero drift and full scalecalibration are realized automaticaly. The system performs mathematical ope-rations in multiple-precision. Some special programs are executed to exploitpotontialities of the hardware. The tests to this system demonstrate exellent accuracy and stability. Itcan be used for an inexpensive multiple-purpose digital instrument.

本文阐述一种由微计算机控制的数据系统的设计。该系统控制、采集、处理和显示外部输入的模拟电压量、频率量和时间间隔量,可以自动校正零点和满量程。该系统使用较少的硬件,通过专用程序对微机的调度,在8位微机里对数据进行多精度运算,充分发挥硬件的潜力,使整个系统具有较高的性能价格比,实现了“随叫随到”或“轮流显示”的功能。该系统已制成样机。经测试证明,稍加改动可被用作多功能的数字化仪表。

 
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