摘要：针对某种电流传感器的带宽和响应时间,提出了对应的测试方案,并设计了一种在要求范围内可调占空比和频率的信号发生器。通过信号发生器对被测信号的频率进行调制,获得对应的FRF函数,进而求得响应时间。随着国民生产生活的不断进步和环保意识的逐步加强,电能质量的精确测量提上日程。如何准确的测量电流获得更真实的电流信息成了工业用电、民用用电等行业迫切需要解决的课题。

摘要：炼铁合金的矿渣微硅主要成分是二氧化硅，是一种凝硬活性材料，掺入微硅的水泥浆在国外已成功地用于漏失层和浅气层的固井作业。本文研究了微硅水泥浆的水灰比设计、密度计算、配方、热稳定性及综合性能，介绍了优选配方在现场的应用。

摘要：Pump controlled motor electrohydraulic servo systems are much used in circumstances where high power drive is needed. This kind of system has the advantage of energy-saving. But, it also has some defects that have to be improved. Microcomputer control of a pump controlled motor electrohydraulic servo system is studied. A PID controller is first adopted on the closed loop control system, and experimental results are obtained. Then, a model reference adaptive controller is designed and realised on the same system applying a single board microcomputer. Experimental results show that the dynamic properties of the adaptive control system is much better than those of the PID system under different inertia load conditions.

摘要：阐述采用FPGA+DSP方案的卫星导航接收机板卡,使用外部Flash的主动串行配置方案更新FPGA程序,使用Slave SlectMAP(从并行)配置模式,探讨DSP引导配置FPGA程序更新方案,同时对系统的存储空间、组成结构、电气接口、控制时序和DSP程序逻辑进行设计。