二次计量误差是造成工厂用电计量平衡困难的原因之一。
The secondary measurement error is one of the causes which make difficult for the balance of plant power consumption measurement.
条件的影响是有匹配样本的连续调查特有的计量误差来源。
Condition effect is an important source of non-sampling error in continuous surveys with matched samples.
误接线是电能计量中严重的差错，会产生很大的计量误差。
Misconnection is the most serious mistake in electrical power measurement.
内浮顶油罐计量误差是从事油品计量作业人员所关注的问题。
Measurement errors of inner floating roof tank are commonly concerned problem to operators engaging in oil measurement.
瞬时转速测量的主要误差为晶振脉冲计数误差和转角计量误差。
It is shown that the error of transient engine speed measurement comes from both the time interval counter and crank angle measure.
对浮盘所造成的浮顶罐计量误差进行了分析，用以指导液位仪安装。
This paper analyzes the metering error of floating roof tank caused by the floating tray to guide the installation of liquidometer.
分析了原油交换计量过程中存在低含水状态下计量误差较大的问题。
An analysis is made of the problem that the metering error is substantial in custody transfer metering of crude oil with low water content.
本文对感应式电能表在谐波状况下的计量误差进行了理论分析和实验研究。
This thesis theory analyzed and experiment researched measure error of induction watt-hour meter base on harmonics.
程序运行表明，计算结果满足该系统对天然气流动状态及计量误差分析的要求。
The result of program operation shows the calculating result satisfies the requirements of natural gas flow state and measurement error analysis to the system.
通过分析油品计量过程中产生误差的主要因素，提出了降低油品计量误差的措施。
The actions to be taken to reduce oil product measurement error are suggested based on an analysis on the main factors causing error in measurement.
分析了造成大功率硅整流交流电能计量装置计量误差大的原因，介绍了具体的改造内容。
It was analyzed why the tolerance of the measurement unit of alternating current for high-power silicon rectification being large. Some concrete improvement measures on it was given.
计量误差考虑了电度表电压线圈和电流线圈在不同的谐波次数以及谐波大小时的非线性效应。
The metering error considers the non linear effect of the voltage coil and current coil in watt hour meter under different order of harmonics and different distortion degree of input waveform.
目前，对试油排液量进行计量通常采用的是人工计量的方法。这种方法计量误差大，技术手段落后。
At present, for the volume of flowing back, the metering method made by man has many measuring errors and its technique has been lag behind.
探讨了电子式电能表的计量误差，对电子式电能表在谐波条件下的计量误差进行了理论分析和实验研究。
This thesis discuss measure error of electronic watthour meter, theory analyzed and experiment researched measure error of electronic watthour meter base on harmonics.
试验结果表明：物料中的水分变化、物料成分变化、皮带跑偏以及物料堆形不同均可产生一定的计量误差；
It is shown that the precision is related not only with the moisture content and composition of the coveyed materials, but also with the belt′s deviation and the evenness of the materials.
本文主要介绍了该系统的组成和工作原理，并用实例阐述了系统的计量过程，最后进行了系统的计量误差分析。
The article mainly introduces the composition, working principle and shows the metering course of this system. The article also makes the error analysis of the system measurement.
通过冷却循环水系统的现场应用，达到了计量标准的要求，降低了计量误差，验证了该系统在原油计量中的作用。
It is proved that the field application of cooling water recirculation system can meet the measurement standards and reduce metering errors.
解决了稠油油井产量计量存在的关键技术问题，减少了计量误差，减轻了操作人员的劳动强度，减轻了环境污染。
This technique has solved a key problem in measuring the output of viscous oil Wells, for it can decrease metering errors, reduce operators 'labour intensity, and lessen environmental poll...
基于对称分量法，对电能表中性点虚接后的电压互感器二次压降进行了分析，得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
该方法从根本上消除了因试油周期选定不合理、地面计量误差，以及试油工艺不同、储层条件差异带来的试油产量误差。
The method removes the production errors from unreasonable of selecting testing cycle, errors of sur - face testing, difference of oil testing tech and diversity of reservoir condition radically.
本文给出了一种电能计量装置现场校验的方法，通过对三相电能表无功计量误差的校验，可以间接地求得其表计的有功计量误差。
TA field calibration method for power metering device is given. By calibrating the error of the reactive power metering, the error of active power metering can be indirectly calibrated.
本文分析了有源远传水表的工作原理，指出有源远传水表存在着许多难以克服的缺陷，譬如：水表工作时离不开电源、计量误差大等。
In the paper the working principle of an active remote transmitting water- meter is analysed and its many defects are pointed out .
针对一些石化企业原油需要油船运输的特点来分析途耗形成的原因，通过采取相应措施，可以减少计量误差，降低途耗，减少经济损失。
It is considered that effective measures should be taken to eliminate metering error, reduce the loss of crude oil in order to cut down economic loss.
沥青混合料的沥青含量偏差主要来自生产时的计量误差、配比偏差、拌和均匀性及检测时的试验误差，文章对这些影响因素进行了分析。
Asphalt content errors in asphalt aggregate mainly come from metering errors, grading errors, mixing homogeneity and measurement errors. These influencing factors are analyzed in the article.
每套油罐自动计量系统客观存在着保证测量精度的最小测量高度，油罐内所装油品高度低于最小测量高度时，油罐自动计量系统的计量误差有可能大于预定误差。
A minimum measurable height is inevitable for each measuring system. When the oil level in tank is lower than this minimum, a measuring error larger than predetermined value may be caused.
对具有复杂、不规则轮廓的零件进行精密测量和误差评定，是当前几何量计量领域中的一个重要课题。
In the field of geometrical metrology, one of the important projects is the accurate measurement and error evaluation of parts profile with complicated and irregular surface.
本文论述了小容量计量器具检定系统存在的误差问题，并详细的分析了小容量计量器具的验定方式。
This paper discusses the errors in verification system of small volume measurement instrument, and gives a detailed analysis on the test ways of small capacity measuring instruments.
指出广义雷诺数相对误差的计算与相关物理量使用的计量体系无关。
The error calculation of the generalized Reynolds number has no relation with the measuring system of the relative physical variables.
而PT二次压降又是引起电能计量装置综合误差的直接原因之一。
PT secondary voltage step-down is one of the reason which causes the comprehensive error of the electric energy metering equipment.
根据衍射光栅的计量特点，建立了正交衍射光栅测量误差模型，推导了光栅安装误差与测量误差之间的关系。
According to metrological characteristics of diffraction grating, the measurement error models are built up and the equations between installation and measurement errors of grating are deduced.
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