CAJ | 학술논문

根据干湿球法测量相对湿度的基本原理,设计了基于DSP的相对湿度测量系统.系统以DSP为核心,通过传感器电路采集温度数据,经AD转换后送给DSP处理,经修正后的干球温度、湿球温度、相对湿度在OLED显示屏上实时显示.文中给出了硬件、软件的设计方案,介绍了DSP与AD的接口电路以及叠代计算方法.该系统具有测量范围广,精度高,灵敏度高,功耗低,可靠性好等优点.
근거간습구법측량상대습도적기본원리,설계료기우DSP적상대습도측량계통.계통이DSP위핵심,통과전감기전로채집온도수거,경AD전환후송급DSP처리,경수정후적간구온도、습구온도、상대습도재OLED현시병상실시현시.문중급출료경건、연건적설계방안,개소료DSP여AD적접구전로이급첩대계산방법.해계통구유측량범위엄,정도고,령민도고,공모저,가고성호등우점.
Based on the psychrometer principles,a relative humidity measurement system via DSP was developed.It acquired the temperature data through the sensor circuit and then transmitted them to the DSP processor after the AD conversation.After be-ing amended the dry-bulb temperature,wet-bulb temperature and relative humidity can be ondispiayed oil the OLED real-time.The hardware and software design project was presented,and the interface circuit of DSP and AD was introduced as well as the it-erative computational method.This relative humidity measurement system has many advantages such as the wide temperature meas-urement range,high precision,low power consuming rate and high reliability.