贮槽液位测量单片机应用系统

本文研究用８０９８单片机对密闭大贮槽的贮液容量进行自动检测的应用系统，解决了把贮槽液位测量传感器输出的电流信号直接转换成贮液重量进行显示，从而使显示直观、清晰．     

The influence of the polarization of the radiation on the accuracy of the transmission of the dimensions of the unit of temperature in radiation thermometry

The results of an investigation of different types of tungsten lamps in order to estimate the components of the error budget of spectrum-pyrometer apparatus are presented. Quantitative relations are considered and the results of experimental research, which enable systematic methods to be developed for eliminating the influence of polarization of the radiation of the lamps in standard radiation thermometry, are analyzed.Translated from Izmeritelnaya Tekhnika, No. 9, pp. 42–45, September, 2004.     

Influence of the coefficient of vaporization on the parameters of the gas near the surface

The dependence of the coefficient of concentration jump on the coefficient of vaporization for a diluted binary mixture, when the concentrations of the components are significantly different, has been investigated. The analytical expression of the concentration jump for the case where the frequency of collisions of molecules is in proportion to their velocity has been obtained. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 80, No. 2, pp. 121–126, March–April, 2007.     

Variety of the representation of the nonstationary temperature of fuel elements depending on the form of the distribution of the heat sources

The author proposes a representation of the solution of the heat-conduction equation in the form of expansions in basis functions that are selected depending on the form of the distribution of the internal heat sources. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 73, No. 4, pp. 761–772, July–August, 2000.     

降低反渗透设备出水电导率的方法

反渗透设备是水处理行业常用设备,广泛用于纯水、高纯水等的预处理.通过试验,找到两种降低反渗透设备出水电导率的方法:反渗透设备进水软化后加碱和反渗透设备进水酸化后脱气,这两种方法都有一定的应用范围,应根据工艺要求和运行费用选择使用.     

Method of including the anisotropy of the optical properties of the surface and the nonunidimensionality of the system in determining the effective radiation

Based on the method of successive substitutions, an integral equation is derived in which multiple reflections are explicitly identified. This equation is used provide simple methods of estimating the local effective radiation of two-dimensional and three-dimensional systems of surfaces, with due regard for the anisotropy of their optical properties. A cylindrical cavity confined by the surface of a right circular cylinder with a side pyrometric hole is treated as an example. The results obtained by the suggested method are compared with the data of direct solution of an integral equation for the two-dimensional problem.     

An estimate of the effect of the relative dimensions of a standard and the target on the accuracy of the determination of the scattering characteristics of radar targets

A method of estimating the error in measuring the effective scattering surface of a target by the substitution method, resulting from the difference in the linear dimensions of the target and a standard reflector is described. Recommendations are made for increasing the accuracy of measurements of the scattering characteristics of radar targets in the transition and near zones.Translated from Izmeritel'naya Tekhnika, No. 1, pp. 25–26, January, 1994.     

Analysis of the effect of the shape of the radiation pattern on the accuracy of azimuth measurements by the monopulse method

The effect of the shape of the radiation pattern of the difference channel of a monopulse antenna on the accuracy of angular-coordinate measurements is estimated. The least root mean square deviation is obtained using a radiation pattern with a Chebyshev amplitude distribution. Of the practical amplitude distributions a “parabola on a pedestal” of 0.1–0.316 is preferable. Translated from Izmeritel'naya Tekhnika, No. 4, pp. 53–54, April, 1998.     

The influence of the stability of the capacitance of compressed-gascapacitors by the contraction of the electric field

The phenomenon of voltage-induced capacitance fluctuations in some compressed-gas, high-voltage capacitors has been observed. The experimental results show that the contraction of the electric field at the part of the insulating housing near the lower end of the high-voltage electrode is probably the main cause of the phenomenon. For measurement requiring high stability, the working voltage must be decreased properly     

Determination of the characteristics of distribution of the fatigue limits of materials on the basis of the energy approach

We propose a method for the determination of the mean value of the fatigue limit of a material and its mean-square deviation according to the results of standard fatigue tests. The interpretation of these results from the viewpoint of energy enables us to establish the relationship between the individual durability of specimens and their potential ability to withstand fatigue fracture in the form of individual fatigue limits. Institute for Problems of Strength, National Academy of Sciences of Ukraine, Kiev, Ukraine. Translated from Problemy Prochnosti, No. 4, pp. 28–33, July–August, 1998.     

表面活性剂在处理太安表面静电中的应用

通过实验检验表面活性剂对太安表面静电积累的降解效果,测定表面活性剂对太安基本性质的影响,分析比较对表面活性剂的优化选择。     

Increasing the Reliability of the Primary Processing of the Results of Measurements

A new approach is considered to processing the results of measurements. It is utilized as a basis for carrying out primary processing including the detection and elimination of anomalous measurements and also for cleansing results of additive noise components. The results are presented of an analysis of the efficiency of a method for multiplying estimates when cleansing the results of measurements of additive noise components.     

Approximate determination of the magnitude of the critical size in the problem of the evolution of an impact

The evolution of a nonlinear dynamic system after the action of a localized effect (impact) is examined. A semiquantitative method is suggested for determining the critical size of the impact upon exceeding which the diffusional mode of decay in the system is replaced by a wave mode of propagation. The use of the proposed technique to evaluate the critical size of an impact in a realistic model of an oceanic ecological system is demonstrated.P. P. Shirshov Institute of Oceanology, Moscow. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 66, No. 4, pp. 398–404, April, 1994.     

The Influence of the Atmosphere on the Wavelength of the He-Ne Laser and the Solution of Corrections of the Laser Interferometer

A simple approximation of the wavelength of single frequency He-Ne laser as a function of temperature, pressure and relative humidity is presented. This approximation is suitable for the simple application in the portable laser interferometer. Comparison with the Owens and Edlén formulae is also presented and it is shown that the linear correction limits its accuracy.     

Analysis of the specific features of loading of the elements of landing gears of aircrafts aimed at the evaluation of the load-bearing capacity of the structure

We propose a computational scheme of the aircraft nose landing gear and perform the analysis of weak sections in the landing-gear lever by the finite-element method. We determine the loading modes in which the landing-gear lever is subjected to disproportional cyclic loads, which should be taken into account in the evaluation of the service life and determination of the properties of applied materials. __________ Translated from Problemy Prochnosti, No. 4, pp. 87–93, July–August, 2008.     

包装纸盒盒型参数化设计应用程序的开发与实现

为了提高包装纸盒盒型的设计效率,在Pro/E应用软件的基础上,利用其自带的二次开发工具Pro/TOOLKIT,采用对话框资源文件设计技术、程序源文件设计技术和程序注册运行技术,完成了包装纸盒盒型参数化设计应用程序的开发,实现了包装纸盒盒型的参数化设计.     

人机结合效率的实验研究

为了研究人机结合效率的高低，通过对操作复杂程度不同的器材进行实验分析：在同一教练员的组织下，不同层次的学习对象的人机结合效率；在不同教练员的组织下，同一层次对象的人机结合效率。通过实验研究表明：学习对象层次或教练员不同，其人机结合效率都存在着明显差异。同时探讨了一些教学方面的对策。     

Study of the Influence of the Source Quality on the Determination of the Shape Factor of Beta Spectra

We are developing metallic magnetic calorimeters for beta spectrometry with the aim of determining the shape factors of beta spectra. The beta emitter is enclosed inside the detector absorber and the absorber size is chosen such that the detection efficiency is close to 100% for the entire spectrum. The nature of the deposit of the beta emitter is critical for precise measurement. A dependence of the shape of the spectrum on the quality of the source has been observed, supposedly due to interactions between the electrons and the deposit itself. We chose for this comparative study a nuclide with an allowed transition whose theoretical spectrum is relatively well-known, ⁶³Ni, a pure beta emitter with an endpoint energy of 66.98?keV. Results of measurements of ⁶³Ni deposited with different techniques are presented and compared to each other and to the theoretical spectrum.     

Algorithm for Synchronizing the Results of Measurements of the Position of the Electromechanical System and of the emf of the Inductor During Dynamic Operation of the Kibble Balance

Measurement Techniques - An algorithm is developed for synchronizing the results of measurements of the emf of the inductor and the position of the coil of the electromechanical system during...