百米磁场下降法测量埋地管道外涂层绝缘电阻技术

介绍了百米磁场下降法测量埋地管道外涂层绝缘电阻的技术，对施测手段、操作要点、计算方法及检测中应注意的问题进行了论述。     

A fuzzy model for predicting burns in surface grinding of steel

Existing analytical thermal models for predicting surface burns due to grinding have limited use because of their reliance on parameters that are not readily obtainable in practice. This paper presents a practical and consistent fuzzy rule-based model for estimating the grinding conditions at which “burn limits” occur. The model consists of 37 absolute and eight relative rules. It has a wide range of applications over many types of steels, Alundum wheels, and grinding conditions. It is also simple to implement, from a rule-chart mode to an intelligent on-line adaptive control mode.     

Determination of waviness decrease rate by measuring the frequency characteristics of the grinding force in centerless grinding

In centerless grinding, it is difficult to optimize the grinding conditions for minimizing the workpiece roundness error because of the high number of process parameters such as center height angle, blade angle, and stock removal rate. We had previously proposed a function for evaluating grinding conditions, i.e., the waviness decrease rate, in order to automatically select the optimum process parameters. In order to build a closed-loop control system for the process parameters, however, it is necessary to find a practical way to determine the waviness decrease rate. In this paper, the relationship between the waviness decrease rate and the dynamic components of the grinding force was investigated analytically. It was found that the frequency characteristics of the waviness decrease rate show a similar tendency to those of the grinding force. A grinding force measurement system was built and experiments for measuring the frequency characteristics of the grinding force were carried out. As a result, it was confirmed that the waviness decrease rate can be determined by measuring the frequency characteristics of the grinding force.     

磨削过程中低温磨削液及供液装置的开发及研究

本文针对磨削过程中的过高的磨削温度问题，研制开发了一种新型的低温供液装置，解决了工程中的实际问题。本文还采用有限元方法对采用低温供液装置的进行冷却润滑的磨削温度场进行了分析，通过仿真分析及实验验证了这种低温供液装置可以大大降低磨削区的温度，有效减少磨削烧伤，效果良好。     

基于B/S架构的燃气计量管理系统的设计

分析了燃气计量管理的现状,设计了一种基于B/S架构的燃气计量管理信息系统。通过各功能模块,实现燃气计量仪表的信息管理和数据分析,为计量工作提供了一个高效的信息化管理平台。     

基于GPRS大口径水表远传系统在水司中的应用

针对供水行业水表计量的信息化发展要求,本文在介绍大口径水表远传工作原理的基础上,采用可测倒流的计数装置,将水表信息传送给水表传输端站,利用网络运营商提供的GRPS网络,实现公户水表表字传输到远程抄表系统的数据库中。系统具有倒转预警功能,数据及图表统计等功能。     

电力抄表催费计件绩效管理探析

介绍了岗位岗级绩效管理抄表催费中存在的问题,提出了计件绩效管理模式及其实践操作方式,并分析了电力抄表催费计件绩效管理的优势,以供有关单位参考。     

浅谈窃电、防治窃电措施和检查步骤

随着我国经济的快速发展,人们对电力资源的需求量越来越大。一些用户在利益的驱使下,为了减少电费开支,常采用一些不法手段窃电,这极大地降低了电力企业的经济效益,对电力企业的发展造成了很大的影响。通过分析常见的窃电手法,提出了一些防治窃电的措施。     

电波流速仪流量自动在线监测装置设计与应用

电波流速仪因其在测量过程中不受水情、含沙量及水面漂浮物的影响,因此近年来在水文部门得到了广泛应用。介绍了一种电波流速仪流量自动在线监测装置的设计方案,包括监测装置硬件和软件实现过程。将该装置应用于四川内江水文站实际测流工作,结果表明,使用电波流速仪的自动在线监测装置测流结果可靠,有利于提高效率和降低成本。可推荐类似水文测站采用。     

基于Android平台与SMS的智能家居能量管理系统

基于Android平台与SMS技术,设计并实现了智能家居能量管理系统设计方案。在文中描述了该系统的总体设计框图、终端软件设计、智能电表设计、智能插座设计。对该系统进行了验证,实验结果表明,该方案能够快捷地实现对家居设备等能量消耗单元的控制,成本很低,适合入门者使用。