滚控测量装置关键技术的研究与实现
发布时间：2018-08-04 13:12
【摘要】：本文针对发动机地面测试设备电磁阀可配置脉冲实现以及传感器微小信号高精度采集两大难点问题，进行理论分析与研究，确定了可行的设计方案，并对该方案在实现过程中可能出现的技术难点进行了可行性论证并提出了相对应的解决方法。 在电磁阀可配置脉冲实现模块中，主要实现了发动机电磁活门可配置控制功能。针对电磁活门难以实时精确控制的问题，，本文提出了电磁阀可配置脉冲的实现方式，建立了电磁阀响应时间模型，分析了影响电磁活门响应时间的因素，并优化了电磁阀驱动电路，从而实现电磁阀响应时间的最小化。 在传感器高精度采集模块中，主要实现了对传感器微小信号高精度采集的功能。本文对采集链路各个部分分别建立模型，分析对系统精度影响的各个因素；同时对各个模块关键技术进行详细理论分析，最终提出了提高系统精度若干解决方法。文章最后通过对采集链路各个部分进行误差累计计算，证明该系统能达到千分之一采集精度。 文中最后对滚控测量装置性能进行完整测试，通过对测试数据进行分析和计算，证实了该装置完全符合设计的性能指标。该设备将控制和高精度采集两个模块集成于同一机箱，集成度较高，且系统插槽便于扩展其他板卡。
[Abstract]:In this paper, aiming at the two difficult problems of the solenoid valve configuration pulse realization of the engine ground test equipment and the high precision acquisition of the sensor micro signal, the theoretical analysis and research are carried out, and the feasible design scheme is determined. The possible technical difficulties in the implementation of the scheme are demonstrated and the corresponding solutions are put forward. In the solenoid valve configurable pulse realization module, mainly realized the engine electromagnetic valve configurable control function. Aiming at the problem that it is difficult to control the electromagnetic valve accurately in real time, this paper puts forward the realization mode of the configurable pulse of the solenoid valve, establishes the response time model of the solenoid valve, and analyzes the factors affecting the response time of the electromagnetic valve. The drive circuit of solenoid valve is optimized to minimize the response time of solenoid valve. In the module of sensor high precision acquisition, the function of collecting sensor micro signal with high precision is realized. In this paper, each part of the acquisition link is modeled to analyze the factors that affect the accuracy of the system, and the key technologies of each module are analyzed in detail. Finally, some solutions to improve the system precision are put forward. Finally, through the error accumulative calculation of each part of the acquisition link, it is proved that the system can achieve 1/1000 acquisition precision. In the end, the performance of the roller control measuring device is tested completely. Through the analysis and calculation of the test data, it is proved that the device fully accords with the designed performance index. Two modules of control and high precision acquisition are integrated into the same chassis, and the system slot is convenient to extend other boards.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TJ06;TK406
本文编号：2163989
[Abstract]:In this paper, aiming at the two difficult problems of the solenoid valve configuration pulse realization of the engine ground test equipment and the high precision acquisition of the sensor micro signal, the theoretical analysis and research are carried out, and the feasible design scheme is determined. The possible technical difficulties in the implementation of the scheme are demonstrated and the corresponding solutions are put forward. In the solenoid valve configurable pulse realization module, mainly realized the engine electromagnetic valve configurable control function. Aiming at the problem that it is difficult to control the electromagnetic valve accurately in real time, this paper puts forward the realization mode of the configurable pulse of the solenoid valve, establishes the response time model of the solenoid valve, and analyzes the factors affecting the response time of the electromagnetic valve. The drive circuit of solenoid valve is optimized to minimize the response time of solenoid valve. In the module of sensor high precision acquisition, the function of collecting sensor micro signal with high precision is realized. In this paper, each part of the acquisition link is modeled to analyze the factors that affect the accuracy of the system, and the key technologies of each module are analyzed in detail. Finally, some solutions to improve the system precision are put forward. Finally, through the error accumulative calculation of each part of the acquisition link, it is proved that the system can achieve 1/1000 acquisition precision. In the end, the performance of the roller control measuring device is tested completely. Through the analysis and calculation of the test data, it is proved that the device fully accords with the designed performance index. Two modules of control and high precision acquisition are integrated into the same chassis, and the system slot is convenient to extend other boards.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TJ06;TK406
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