单片机的压力检测系统(43页).doc

题目：基于单片机的智能压力检测系统的设计基于单片机的智能压力检测系统的设计基于单片机的智能压力检测系统的设计摘要摘要压力是工业生产过程中的重要参数之一。压力的检测或控制是保证生产和设备安全运行必不可少的条件。实现智能化压力检测系统对工业过程的控制具有非常重要的意义。本设计主要通过单片机及专用芯片对传感器所测得的模拟信号进行处理,使其完成智能化功能。介绍了智能压力传感器外围电路的硬件设计,并根据硬件进行了软件编程。本次设计是基于 STC89C52 单片机的测量与显示。是通过压力传感器将压力转换成电信号，再经过运算放大器进行信号放大，送至 24 位 AD 转换器，然后将模拟信号转换成单片机可以识别的数字信号，再经单片机转换成 LED 显示器可以识别的信息，最后显示输出。而在显示的过程中通过键盘，向计算机系统输入各种数据和命令，让单片机系统处于预定的功能状态，显示需要的值。本设计的最终结果是，将软件下载到硬件上调试出来了需要显示的数据，当输入的模拟信号发生变化的时候，通过 A/D 转换后，LED 将显示不同的数值。关键词关键词:压力；STC89C52 单片机；压力传感器；A/D 转换器；LED 显示；Design of pressure detecting system based on single-chipAbstractPressure is one of the important parameters in the process of industrial production.Pressure detection or control is an essential condition to ensure production and the equipmentto safely operating,which is of great significance.The single-chip is infiltrating into all fieldsof our lives,so it is very difficult to find the area in which there is no traces of single-chipmicrocomputer.In this graduation design,primarily through by using single-chip anddedicated chip,handling of analog signal measured by the sensor to complete intelligentfunction.This design illustrates external hardware circuit design of intelligent pressure sensor,and conduct software development to the hardware.The design is based on measurement and display of STC89C52 single-chip.Thisis the pressure sensors will convert the pressure into electrical signals.After using operationalamplifier,the signal is amplified,and transferred to the 8-bit A/D converter.Then the analogsignal is converted into digital signals which can be identified by single-chip and thenconverted by single-chip into the information which can be displayed on LED monitor,andfinally display output.In the course of show,through the keyboard to input all kinds of dataand commands into the computer,the single-chip will locate in a predetermined function stepto display required values.The end result of this design is that by downloading software to the hardware,it will getthe da