基于传感器mpx4115的智能压力检测系统设计与仿真本科生毕业（设计）论文.doc

基于传感器MPX4115的智能压力检测系统设计与仿真  摘要 数字式气压计被广泛应用于当前工业领域、国防领域、医疗领域以及日常生活中。本设计中就介绍了一种气压的实时显示设备。它利用软、硬件基础知识，通过单片机与气压传感器的结合，使得在液晶显示器上显示出当前大气压值。本文详细的描述了基于mpx4115气压计的多功能应用以及软硬件实现的过程。 本设计是基于气压传感器mpx4115的精密数字气压设计系统。通过气压传感器mpx4115获得与大气相对应的模拟电压值，并经过电压/频率（V/F）装换模块装换为数字脉冲，通过单片机接受脉冲数，依据电压与频率的线性关系式计算出相对应的实际气压值，最后在单片机的控制下由液晶显示电路显示出实际气压值。总体目标是实现系统的可靠性、稳定性、安全性和经济性。 关键词：mpx4115；气压传感器；单片机；液晶显示；V/F装换器  Abstract Digital pressure gauge is widely used in the industrial field, national defense field, medical field and in daily life. This design introduced real-time display equip- ment for pressure. It makes use of soft, hardware based on knowledge, through a com- bination of single chip microcomputer and pressure sensor, which shows the current high pressure in the liquid crystal display. This paper describes the process of application of multifunctional mpx4115 barometer of the hardware and software based on.本设计是基于气压传感器mpx4115的精密数字气压设计系统。通过气压传感器mpx4115获得与大气相对应的模拟电压值，并经过电压/频率（V/F）装换模块装换为数字脉冲，通过单片机接受脉冲数，依据电压与频率的线性关系式计算出相对应的实际气压值，最后在单片机的控制下由液晶显示电路显示出实际气压值。总体目标是实现系统的可靠性、稳定性、安全性和经济性。 This design is digital precision pressure design system of pressure sensor based on mpx4115. Mpx4115 pressure sensor through the received analog voltage corresponding to the atmospheric value, and through the voltage / frequency (V/F) loaded module loaded into digital pulse, pulse number through the microcontroller, based on the linear relationship between the voltage and frequency to calculate the actual pressure value corresponding to the rear, under the control of MCU by liquid crystal display the circuit shows the actual pressure values. The overall goal is to achieve system reliability, stability, security and economy. Keywords mpx4115 Gs pressure transducer Single chip microcomputer Liquid crystal display Voltage / frequency conversion  目录 摘要 I Abstract II 目录 III 1绪论 1 1.1 课题设计原理及要求 1 1.2 技术概况及发展趋势 1 1.2.1 传感器的技术性能 1 1.2.2 传感器的发展趋势 2 1.3 数字气压计系统的设计意义 4 2 系统总体设计 6 2.1 设计整体思想 6 2.2 系统总体框图 6