积分式仪表常数自检功能的设计与研究-电测与仪表.DOCVIP

20131021002 积分式仪表常数自检功能的设计与研究 盛泉根 （华立仪表集团股份有限公司，杭州 310023） 摘要：积分式计量仪表的常数的正确与否，直接影响到该产品能否被验收或投入使用。该文以目前大批生产的电能计量仪表为研究对象，利用产品现有的硬件和软件配置，在电能表产品上增设仪表常数自检功能，验证电能表内部配置的常数值、测试输出脉冲驱动因子和电子计度器进位驱动因子的正确性。电能表配置仪表常数自检功能，液晶屏的数字区被切换为连续的电能量累加显示与仪表输出（光或电）脉冲同步的脉冲累加计数显示，分别用作自检操作前的参数显示、自检过程显示和自检结果的显示。利用电能表表盖上的本地的功能按钮或红外遥控器上的控制按钮，实现电能表产品仪表常数自检功能切换、参数设置、程序的启动和停止。具有仪表常数自检功能的电能表，常数测试操作简单、测试时间少且无测试误差，提高常数检验结果的可信度。 主题词：仪表常数；常数检验；自检功能 中图分类号：TM933 文献标识码：B 文章编号：1001-1390（2014）00-0000-00 Research Design of Constant Self-test Function for Integral Meter SHENG Quan-gen （H Metering Group Company Ltd., Hangzhou 310023, China） Abstract: orrectness of the constant for integral measuring instrument directly affects whether the product can be approved or put into use. Taking the mass-produced electric energy meters as the research subject, the paper adds constant self-test function to the electric energy meter based on existing hardware and software configuration of the product. The instrument constant test is to verify the internal configuration of the constant value for the electric energy meter and correctness of output pulse driving factor and electronic meter carry driving factor. The constant self-test function is configured for the electric energy meter, where the digital LCD screen toggles between the continuous display of electric energy accumulation and pulse accumulation counting display synchronized with instrument output (optical or electrical) pulse. The screen is used for parameter display before the self-test, process display of the self-test and result display of the self-test. The local function button on the cover of the electric energy meter or the control button on the infrared remote controller are used to realize constant self-test function switching, parameters setting, and program start and stop function of the electric energy meter product. The meter with the instrument constant self-test function has the advantages of simple operation, less test time, test