基于取样积分的射频导纳物位测量
Machine Building & Automation(2009)
Abstract
利用射频导纳原理对粘稠性导电介质进行物位测量时,只要能准确测得π/4相位点的信号幅值,就能较好地消除挂料引起的误差。在射频导纳物位测量中结合定点采样的微弱信号处理方法,使系统在获取真实物位的同时,提高了输出信号的信噪比。
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Key words
radio frequency admittance,sample-integral,attachment,level measurement
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