LDKS型智能车辆分离光栅传感器的研制

LDKS型智能车辆分离光栅传感器，采用硬件电路设计与单片机软件编程控制相结合的技术，在强光和电磁干扰、下雨、下雪、浓雾、温度异常等恶劣条件下仍能保证工作的可靠性，可有效地满足自动收费系统对车辆分离检测的要求。     

电厂燃气轮机气路分析的新型数学模型

为了提高传统小偏差方程组的诊断精度,提出了一套新的小偏差数学模型.在原有方法的部件特性变化量中引入修正因子,消除了匹配过程对计算结果的影响,使得新方法的计算结果更接近于真实部件变化量.将该模型应用于PG9171E型燃气轮机(燃机)的仿真结果表明:新数学模型能够更精确地反映测量参数和部件性能之间的关系;由该模型推导出的故障诊断矩阵可以提高测量参数预估与机组性能评定的精度.     

A DEVELOPMENT OF MICROCOMPUTER-BASED MULTICHANNEL DIGITAL THERMOMETER

In this paper, the construction and performance of the microprocessor-based multi-chan-nel digital thermometric instrument together with its deisgn and fabrication are systematicallydescribed. The principle, method and practical softwares for the entire reference-junction com-pensation processing by microcomputer and the linearization of the characteristic ofthermocouples are also exhaustively expounded with a detailed analysis of the error existing inthe thermometric instrument. The practiced result shows that the apparatus is featured with asimple construction, high accuracy and high ability of anti-disturbance. It is proved to be ofpractical value.