电气工程及其自动化专业【毕业设计 文献综述 开题报告】20吨压力机峰值测试器的设计（可编辑）.doc

电气工程及其自动化专业【毕业设计+文献综述+开题报告】20吨压力机峰值测试器的设计 （20_ _届） 本科毕业设计 20吨压力机峰值测试器的设计 摘 要 近年来，由于我国国民经济的飞速发展，各行各业对压力机的需求越来越多，国内国际市场竞争非常激烈。世界许多压力机生产厂家都把精力集中在开发高速度、高精度的压力机上，研究的方向不但在机身上，而且已转移到整个压力机装配上。在研究的手段上不但是计算机仿真，而且应用了许多有效的实验模拟装置。我国压力机的分析水平还不高，长期以来还停留在材料力学的方法上。对压力机的峰值测量还没多大进展。随着电子技术、计算机技术与机床技术的结合，强烈要求能够准确的测量压力机的峰值。压力计量在工业生产和科研活动中的地位更是举足轻重。尤其是生产企业，压力计量成为保证产品的量和生产安全的决定性因素。 因此，压力仪表、压力变送器在企业生产中的各个环节得到了广泛的应用，而这些压力计量器具是否准确就成为使用者十分关注的问题。由于压力机的峰值的测量非常重要，尤其对于工业应用而言，因此设计压力机峰值测试器成为了新的课题。基于单片机技术的压力机峰值测试器以其使用方便，测量精确而得以推广。压力机测试器是由硬件电路和软件电路组成，压力机峰值测试器应用压力机模型、AD转换电路、单片机技术处理并输出显示结果。本论文利用555定时器和运放器构成压力机模型，AD0808获得信息数据，再经过单片机处理并显示。根据压力机峰值测试器电路构成，设计出了压力机峰值测试器的硬件电路及roteus软件编程，应用单片机技术处理电路简单，成本低，应用面广，但是由于模拟信号其测量结果和实际的存在一定的误差。 关键词：压力机，峰值测量，555定时器， AD转换电路，单片机 Design of 20-ton press peak tester Abstract In recent years, due to the rapid development of Chinas national economy, the needs of various industries on the press become more and more, domestic and international market is very competitive. Many press manufacturers of world focus on developing high-speed, high-precision presses, not only in the direction of the body, and have been transferred to the press assembly. In the study not only the means of computer simulation, and the experimental application of a number of effective simulator. Analysis of level of press was not high, also had a long stay in the methods of mechanics of materials. The measure of the press’s peak has not been made much progress. As the combination of electronic technology, computer technology and machine tool technology, strongly demanding to accurately measure the peak of press. Pressure measurement in industrial production and the status of research activities is very important, especially the manufacturers, the pressure measurement becomes the decisive factors of ensuring the amount of products and the safety of production. Therefore, the pressure gauge, pressure transmitter in all aspects of production have been widely used, and accuracy of