基于AD7714的多通道霍尔高斯计  

Multi-channel Hall Gauss Meter Based on AD7714

作　　者：郑辰雅 占瑜毅 胡毅[1] ZHENG Chen-ya;ZHAN Yu-yi;HU Yi(School of Instrument Science Opto-electronics Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学仪器科学与光电工程学院,安徽合肥230009

出　　处：《仪表技术与传感器》2020年第8期44-47,91,共5页Instrument Technique and Sensor

基　　金：国家自然科学基金(51475133);安徽省教学改革项目(2017jyxm0035)。

摘　　要：文中介绍了以HG106C砷化镓线性霍尔传感器为探测传感器的多通道霍尔高斯计的各个组成部分。提出并使用基于TL431芯片的恒流源电路为传感器供电;利用AD7714的∑—Δ采样转换技术以及其多个差分及准差分输入端口,设计多通道的数据采集软件;采用STC12C5410AD单片机作为微控制器完成数据采集及存储。It introduced the components of a multi-channel Hall Gauss meter with HG106 C gallium arsenide linear Hall sensor as detection sensor in detail.A constant current source circuit based on TL431 chip was proposed and used to power the sensor.The multi-channel data acquisition software was designed by using AD7714’s SIGMA-DELTA sampling conversion technology,its multiple differential and quasi-differential input ports;STC12 C5410 AD chip was used as microcontroller to complete data acquisition and storage.

关 键 词：AD7714 高斯计 数据采集 恒流源 

分 类 号：TH85[机械工程—仪器科学与技术]