LRC-99催化剂的工业应用

论述了LRC-99催化剂在哈尔滨炼油厂RFCC上的工业应用情况。应用结果表明：该催化剂占系统藏量的75％左右，活性52时，轻烃收率可提高1．57％，焦炭产率下降0．77％，轻柴油提高4．9％，总液收提高1．02％，汽油辛烷值和柴油十六烷值变化不大，催化剂的稳定性和选择性良好。     

近红外分析仪在酒糟饲料生产控制及质量检测中的应用

将近红外分析仪应用于酒糟（DDGS）饲料生产控制及质量检测中，开发了DDGS饲料粗蛋白含量和水分测定的工厂校准，并对该校准进行了测试。试验证明该校准符合国家标准的要求。     

713C天气雷达的回波强度定标

为了抵消天气雷达的参数变化所引起的雷达回波强度的误差 ,根据天气雷达回波强度定标的基本原理 ,结合我们多年来在天气雷达的参数测量、系统调整及回波强度定标中累积的经验 ,将详细地论述 713C天气雷达回波强度定标的内在过程 :给出了回波强度定标的软件流程、介绍了雷达定标前的准备工作及定标过程、说明了 713C天气雷达回波强度定标文件的形成方法、又提出了几种对天气雷达定标结果的验证方法。这样才能使得定标后天气雷达残存的回波强度误差在整个接收系统对数动态线性范围内控制在 2dB以内 ,保证天气雷达定量探测降水回波的准确性     

Adaptive calibration of a capacitance tomography system for imaging water droplet distribution

A highly sensitive electrical capacitance tomography (ECT) system based on an HP4284 impedance analyser has been developed and used to quantify low concentration multi-phase flows in wet gas separation processes. The system hardware provides high accuracy (0.05%) and high resolution (10⁻¹⁷ F). The sensor was calibrated in an environmental chamber with solid samples of known permittivity over ranges of temperature and humidity. Adaptive calibration and adjacent electrode pair correction techniques were applied to image very low concentration profiles. This paper describes the techniques used and presents the experimental results obtained from a test flow rig called Twister, which has been designed to separate liquid droplets from wet gas streams. The test results over a range of operating conditions (20–95% humidity) demonstrate that the ECT system is capable of reconstructing clear images of the droplet distribution inside Twister. Changes as small as 1 gWater/kgAir in the form of liquid droplets were detectable. It has also been shown that the concentration of the condensable phase can be estimated quantitatively within 20% in comparison with the reference measurements.     

Improving the accuracy of a measurement system with unstable parameters

Calibration of an adaptive data-acquisition system by the use of standard measures is considered when there are destabilizing factors. Methods are considered for reducing the errors and lessening the computational costs in the measurements. __________ Translated from Izmeritel'naya Tekhnika, No. 1, pp. 7–11, January, 2006.     

A Method of Calibrating Standard Voltage Dividers up to 1000 V

A method of calibrating a resistive voltage divider for voltage ratios of 1000 V/10 V and 100 V/10 V with an uncertainty at the level of 10⁻⁷ is developed. The method enables a calibration to be carried out at the working voltage of the divider and can be used to calibrate a transportable voltage ratio standard when carrying out CCEM-K8 key comparisons.__________Translated from Izmeritel’naya Tekhnika, No. 4, pp. 52–57, April, 2005.     

实验室认可简介

在市场经济条件下和国际贸易中,买卖双方十分需要用检测数据来判定合同中产品质量。因此,实验室的资格和技术能力的评价显得尤其重要。为此各国和各地区纷纷建立自己的实验室认可制度和体系。我国也根据需要,建立了中国实验室国家认可体系。     

频率捷变雷达信号源边工作边校准技术研究

分析了原有频率捷变雷达信号源中频率校准方法存在的缺陷，在此基础上设计了边工作边校准的频率校准电路，提高了信号源的频率跟踪精度和稳定工作时间。     

Study of the Comminution Characteristics of Coal by Single Particle Breakage Test Device

Single-particle breakage tests of South Blackwater and Ensham coal from the Bowen Basin area in Queensland were conducted by a computer-monitored twin-pendulum device to measure the energy utilization pattern of the breakage particles. Three particle sizes (-16.0 + 13.2 mm, -13.2 + 11.2 mm, -11.2 + 9.5 mm) of each coal were tested by a pendulum device at five input energy levels to measure the specific comminution energy. When particles were tested at constant input energy, the variation of comminution energy between the same size broken particles of Ensham coal was minimal, because Ensham coal is a softer and higher friability coal, which absorbs more input energy than harder coal during breakage tests. For different particle sizes, the specific comminution energy increases linearly with the input energy and the fineness of the breakage products increases with the specific comminution energy.The size distribution graphs are curved but approach linearity in the finer region. At a constant input energy, the twin pendulum breakage product results show that the fineness of the products increases with decrease in particle size and South Blackwater coal produced finer products than the Ensham coal. The t-curves are the family of size distribution curves, which can describe the product size distribution of the breakage particles during single-particle breakage tests.     

自行火炮导航系统标定试验分析

自行火炮导航系统装备火炮后必须经过标定才能使用。标定过程是为了得到导航系统的安装误差和里程系数。标定过程是通过跑车试验来完成的。在标定试验中得到的安装误差和里程系数是否准确将直接影响导航精度。影响标定的误差源包括与行驶里程不相关的误差源和与行驶里程相关的误差源。跑车试验数据表明，导航系统在每个点的定位精度都在0．2％（所行驶里程）以内，标定结果满足导航精度要求。