储油罐的变位识别与罐容表标定模型

建立罐体变位后罐内储油量与油位高度及变位参数(纵向倾斜角度α和横向偏转角度β)之间的一般关系,并通过罐体变位后在进出油过程中的实际检测数据,确定变位参数。然后利用关系得出罐体变位后油位高度对应的储油量。     

基于BH1710的照度计设计

在工农业生产、建筑、影视和医疗卫生等行业中,经常要求测量光照的强度。根据需要设计了一种测量精度高、成本低的数显照度计。该照度计以AT89S52单片机作为控制核心,应用了最新数字型照度传感器BH1710。电路结构简单,体积小,可以嵌入各种需要照度测量的电子仪器中,测量精度高达1lx。     

汽车仪表技术现状与展望

汽车仪表是影响汽车行驶安全和整车质量的重要装置,它经历了机械机心表、电气表、模拟表和数字表四个发展阶段,能通过现场总线进行信息传输,集检测、诊断、数据分析、信息储存与管理、自适应和自控制等功能与一体的智能化仪表将成为下一代汽车仪表的主攻方向。     

户用仪表的物联网构建

介绍了物联网远程抄控户用仪表的数据传输和控制方法,采用M-Bus总线作为户用仪表的现场总线网络,MSP430嵌入式系统单片机作为户用仪表现场网络的小区主站,GPRS无线数据传输方式作为小区主站与城市户用仪表管理中心之间相互通信的手段,构建了具有Internet共享浏览数据、远程控制及故障诊断功能的户用仪表物联网.     

Shock wave velocity measurement in the Al2O3 under ultrahigh pressure

In indirect-drive experiment, the blank effect caused by X-rays from Hohlraum will show the dark area in time scale of optical streak camera (OSC). This blank effect, which was a serious problem in indirect-drive shock wave experiments, has been explained by the semiconductor model. The X-rays cause the band to band transition and the probe laser is absorbed by the intraband transition, which leads to a dark region in time scale of the OSC image. In the experiment, the reflectivity of shock wave front was measured to be about 50% at shock wave velocity 32 km/s and was compared to the theoretical calculations with the Drude free electron model. From the experimental data, it is found that the blank effect can be avoided at radiation temperature of 170 eV if the Al layer is thicker than 60 μm.     

Measurement of the terrestrial ozone concentration by absorption UV spectroscopy

The conditions allowing one to measure the concentration of terrestrial ozone by the open-path DOAS method using a zero line are considered. A technique based on measuring signals at two wavelengths, at least one of which belongs to the ozone absorption UV band, is described. The error of measurements has been estimated. A block-diagram of the optical “open-path” meter for measuring the terrestrial ozone concentration, TrIO-2, is presented. __________ Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 72, No. 6, pp. 832–836, November–December, 2005.     

高精密数星测微仪

本文介绍一种由单片机控制的高精密数显测微仪，它是一种精度高、测量范围大、稳定性好、能够准确测出微小尺寸变化的新一代智能测量仪器。文中分析了测微仪的工作原理，给出了单片机控制电路的硬件构成和主要软件流程．     

工业用水计量的合理性分析

针对工业用水计量方面存在的诸多问题，从水表的选型、安装、使用、维修以及用水计量方法的选取等方面进行了合理性分析，并提出了加强用水计量管理的相关对策。     

浅析分户热计量的几种方式

对目前出现的几种分户式热计量采暖技术方式进行了分析比较，井对其特点和使用条件进行了讨论。     

串行时钟/日历芯片PCF8583及其应用研究

研讨了一种新型串行日历芯片ＰＣ８５８３并在承担的省科委项目《多功能智能自动补偿分时段电度表》中应用，由于其体积小，占用口线少在应用中可大大简化硬件电路。