【作者】 肖茂森；

【导师】 原思聪；

【作者基本信息】 西安建筑科技大学 ， 机械电子工程， 2005， 硕士

【摘要】 电涡流位移传感器作为应用十分广泛的传感器之一,其技术水平和智能化程度直接影响到利用其进行控制的准确性,改进其测量的准确性和精度是其技术水平提升的重要环节之一。 本文着重对电涡流位移传感器的温度补偿系统及其补偿手段进行分析研究。首先对基于PIC单片机芯片在电涡流传感器温度补偿中应用的可行性进行了分析,提出在电涡流传感器内部,利用电涡流传感器线圈阻值随温度变化而变化的特性,并将该变化量输入PIC单片机进行运算并输出的核心思想。 在此基础上,对电涡流传感器随温度变化的机理以及温度补偿算法进行了研究;设计了传感器内部及外围部分电路;以PIC单片机作为补偿系统的核心器件,完成补偿系统的硬件设计;利用汇编语言及MPLAB-IDE软件完成了补偿系统的软件设计;利用MPLAB-ICD和MPLAB-IDE进行了实验仿真分析;并对系统进行了调整和完善。 研究及仿真实验结果表明,在PIC单片机内嵌入温度补偿算法,可以达到对于特定温度的特性补偿、软件修正及实时控制,取得了较理想的测量和控制效果。更多还原

【Abstract】 Electric Eddy Transducer is one of the widely used Transducers, the technical level and intelligent degree of whish affects the veracity of control system directly. Veracity and precision of Electric Eddy Transducer plays an important role in improving its technical level.In this paper, we emphasize on the temperature compensation system and its means of Electric Eddy Transducer. Firstly, we take a feasibility analysis to the application of Electric Eddy Transducer based on PIC single chip machine in temperature compensation. Secondly, we bring up a kernel idea: According to resistance of electric eddy transducer winding changes with the transducer temperature inside the electric eddy transducer, we input the value to PIC single chip machine and make operation and output. On this base, we make research to the mechanism and temperature compensation of Electric Eddy displacement Transducer, design part of the inside and outside circuit of the sensor, accomplish the hardware design of the compensation system by utilizing PIC single chip as the kernel part of the system, complete the software design of the system by utilizing machine language and MPLAB-IDE, simulate and analysis the hypothesis in MPLAB-ICD and MPLAB-IDE. Finally, we adjust and perfect the whole system.The experiment result of our research and simulation shows: The temperature compensation arithmetic embedded PIC single chip processor of Electric Eddy Transducer can raise the characteristics of sensor. The research achieved temperature compensation and software correct and real time control to some temperature and made a measurement and control ideal effect.更多还原