Static contact under load between nominally flat surfaces in which deformation is purely elastic

In considering the contact between two rough surfaces, an asperity-based model has been obtained by applying the most general Hertzian equations for elastic deformation to the random surface model of Longuet-Higgins. For a given separation, general formulae for the expectations and variances of the load and real contact area and for the mean number of contacts are given, whilst for the variance of the number of contacts an upper bound has been derived. The formulae, involving analytically intractable integrals, have been evaluated in a special case by Monte Carlo techniques.     

称重传感器弹性元件的结构设计与加工

本文主要阐述了称重传感器技术的发展和现状以及称重传感器弹性元件在设计时应注意的问题。根据应力集中的原则,指出了弹性元件上电阻应变计粘贴的合理位置。分析了弹性元件的制造过程中各个环节对称重传感器性能的影响。对合理设计弹性元件的结构,提高称重传感器整体性能指标和产品质量有充分的参考依据。     

浅谈数字化称重传感器的零点温度补偿技术

数字化称重传感器在软、硬件技术上采用当今国际最先进的零点温度自动跟踪补偿技术,高灵敏度、高精度、高稳定性是传统模拟电阻零点温度补偿技术远远所不能比拟的。     

关于国家新型实用专利塞入式组合测力传感器(三棱塞入式测力传感器)可行性的技术探讨

文章主要对一个新型实用专利"塞入式组合测力传感器"技术问题提出一些不同的技术观点并对其进行技术探讨.     

就《关于国家新型实用专利塞入式组合测力传感器(三棱塞入式测力传感器)可行性的技术探讨》的不同意见

在《衡器》2008年第一期中刊登了一篇题为《关于国家新型实用专利塞入式组合测力传感器(三棱塞入式测力传感器)可行的技术探讨》的论文。该论文分析了塞入式测力传感器的基本测量原理:"基于双剪切桥式传感器,通过测量钢轨腹板区域     

浅谈数字化称重传感器的零点温度补偿技术(接4期)

数字化称重传感器在软、硬件技术上采用当今国际最先进的零点温度自动跟踪补偿技术,高灵敏度、高精度、高稳定性是传统模拟电阻零点温度补偿技术远远所不能比拟的.     

浅谈数字化称重传感器的零点温度补偿技术(接2004年第6期)

数字化称重传感器在软、硬件技术上采用当今国际最先进的零点温度自动跟踪补偿技术，而且集成化、微型化、智能化、多功能化的数字称重显示与键盘部分取代了传统的称重显示器，数字调试方式更快速、更准确，功能更完善。     

New nonparametric statistical test for problems with three samples,which is more effective than the Whitney test

Optoelectronics, Instrumentation and Data Processing - A new nonparametric statistical test for testing the hypothesis of homogeneity of three samples against an alternative hypothesis, which...     

Preparation of W-Ta thin-film thermocouple on diamond anvil cell for in-situ temperature measurement under high pressure

In this paper, a W-Ta thin-film thermocouple has been integrated on a diamond anvil cell by thin-film deposition and photolithography methods. The thermocouple was calibrated and its thermal electromotive force was studied under high pressure. The results indicate that the thermal electromotive force of the thermocouple exhibits a linear relationship with temperature and is not associated with pressure. The resistivity measurement of ZnS powders under high pressure at different temperatures shows that the phase transition pressure decreases as the temperature increases.     

New statistical test for problems with two and three samples,which is more powerful than the Wilcoxon and Whitney tests

New nonparametric statistics and a criterion (test) based on them are proposed to check the hypothesis of homogeneity of three and two samples, where one sample contains an even number of elements and, hence, can be divided into two samples, against an alternative hypothesis, which implies that random values of one sample are stochastically greater than random values of two other samples. The test is mainly sensitive to shifts of distributions and is more powerful than the Wilcoxon-Mann-Whitney and Whitney tests, at least for problems with samples from exponential and uniform distributions.