多功能电气参数测试仪摘要:本三相多功能电表采用凌阳SPCE061A板控制器,以高精度的三相电能专用测量芯片ATT7022A为核心测量芯片,实现对三相工频交流电三相电压、三相电流、三相有功功率、三相无功功率、总有功功率、总无功功率、功率因数、电网频率、有功电能和无功电能的测量与显示,测量精度高,且具有电压和电流相序检测、掉电存储、密码保护等功能
本设计还通过RS-485通讯实现远程测量、红外通信实现向掌上PDA手抄表的信息传送,并通过按键菜单和LCD显示提供人机交互界面
关键字:ATT7022A、SPCE061A、标准RS-485通讯、红外数据通信、LCD显示模块Abstract:Thethree-phasemulti-functionmeterwithSunplusSPCE061Aboardcontroller,dedicatedtohigh-precisionmeasurementofthree-phaseelectricalenergymeasurementchipATT7022Acorechiptorealizethemeasurementanddisplayoftheparamentsconcerningthree-phaseACfrequency,includingthree-phasecurrent,three-phaseactivepower,three-phasereactivepower,totalactivepower,totalreactivepower,powerfactor,powerfrequency,activeenergyandreactiveenergy,withhighaccuracy
Besides,ithasphasesequencevoltageandcurrentdetection,power-downstorage,passwo