文章摘要
朱武,金长善.超声波换能器电功率分析仪的研究[J].声学技术,1998,(3):128~131
超声波换能器电功率分析仪的研究
Study on power analyzer of ultrasonic transducer
投稿时间:1997-11-10  修订日期:1998-02-10
DOI:
中文关键词: 有效值  双级电流互感器  超声换能器
英文关键词: RMS  tow-stage current transformers  ultrasonic transducer
基金项目:
作者单位
朱武 哈尔滨工业大学, 哈尔滨150001 
金长善 哈尔滨工业大学, 哈尔滨150001 
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中文摘要:
      本文介绍一种高精度交流数字功率分析仪。该仪器采用真有效值技术完成交流电流、电压的交直流转换,利用三次有效值的方法实现交流功率的测量。在仪器中引入自动校准技术,在电路中没有任何可调元件,提高了系统的可靠性和稳定性。
英文摘要:
      A AC digital power analyzer with high precision is described in this paper. In this instrument, the technique of true RMS-to-DC is used to covert alternating voltage and alternating current to direct voltage, and the method of three RMS values is used to achieve AC power measurement. There is no any adjustable element in the circuit because of auto calibration introduced, which improves the instrument’s reliability and stability.
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