摘要
本文介绍了基于Atmega128的电能量测量仪的软硬件设计、实施及测试评估。通过Atmega128采集电压及电流数据并传输至PC,最终由PC机完成数据处理及显示。数据采集使用采样保持器,保证了电压及电流采样同时性,降低了由采样间隔带来的误差。PC机将数据进行处理并将设备电压、电流及功率随时间变化情况精确直观地显示出来,并可以精确计算指定时间内设备的累积能耗。该电能量测量仪操作方便,使用灵活,很好地满足了低功耗设备能量评估的要求。
The electrical energy measurement instrument based on Atmega128 was designed, implemented and tested. The data of voltage and electric current were sampled and sent to PC by Atmega128, data process and date display were accomplished by PC. Data collecting used sampling keep parts, which assure to sample the data pair of voltage and current at the same time and reduce the error brought by sampling time difference. PC processes the data and displays the voltage and current data accurately. It also calculated the energy consumption of equipments accurately in appointed time. Besides easy operating, this instrument is multifunctional. It can be applied to the online test of the dynamic parameters of low-power electrical system.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2008年第9期2005-2009,共5页
Chinese Journal of Scientific Instrument
关键词
虚拟仪器
能耗
模拟数字转换
采样
virtual instrument
energy consumption
analog-to-digital convert
sample
