湿度测量毕业论文.doc

摘要:湿度测量在我们的生活及生产中扮演着越来越重要的角色,适当的湿度不但能让人们的生活更加舒适,也是生产优质产品的重要保障,而良好的湿度测量仪器则是实现这一目标的手段。
本文介绍了以凌阳16位单片机SPCE061A为控制中心,配合LCD501液晶模组及HS1101电容式湿度传感器,通过SPCE061A的Feedback功能构成RC反馈振荡电路, 利用一个按键来启动湿度测量和语音播放。由于电容不能直接和SPCE061A的I/O口连接进行测量,所以需要一个电路模块,与SPCE061A的Feedback接口IOB2、IOB4、IOB3、IOB5连接实现从电容到频率的转换,完成湿度传感器从电容到频率的转换,从而实现了湿度的测量。且当湿度值高于或低于设定值时有提示功能,利用按键可控制湿度值的播放及若干湿度值的存储。
该设计具有硬件电路相对简单、体积小、可靠性高、发音时间快、受环境影响小、容易读取、价格低廉等特点。
关键词:SPCE061A   传感器    湿度    HS1101   Feedback
Abstract:Humidity measurement in our life and production plays a more and more important role, appropriate humidity can not only let people's life fortable, but also an important guarantee of producing quality products and good humidity measuring instrument is the means to achieving this goal.
This paper introduces the sunplus SPCE061A with 16-bit single chip for control center, with LCD501 LCD module and HS1101 capacitive moisture sensor, through the SPCE061A Feedback function constitute RC Feedback oscillating circuit, complete humidity sensors to frequency conversion from capacitance, thus fulfilling the humidity measurement. And when humidity value above or below the setting, using the keys have prompt functions can be controlled humidity value play and certain humidity value of storage.
This design has the hardware circuit was relatively simple, small size, high reliability, pronunciation time quick, environmental influences are small and easy to read, cheap price, etc
Keywords: HS1101 SPCE061A sensor humidity Feedback

目录
1绪论 1
1
2
………………………………………………….…3

设计方法
2系统硬件设计 5
…………………………………………………………5
、湿度定义
、湿度测量方法
、电子式湿度传感器的特点
HS1101简介……………………………………………8
……………………………………………………………………8
、特性曲线……………………………………………………………………9

SPCE061A芯片简介 11
 SPCE061A最小系统 12
SPLC501液晶显示模组

SPLC501 驱动控制器芯片
Tool
SPLC501液晶显示模组电路原理图
系统总电路图
3 系统软件设