Title: A method of weak signal detection and the application in beam position monitoring systeam
Abstract: In this paper,a method of weak signal detection,Lock-in amplifier,is introduced at first briefly,then a type of heterodyne lock-in amplifier is introduced briefly also.The results of primary test to the circuit is given in the paper,the integral nonlinearity of the circuit is 0.75%,the frequency of input signal is 5MHz.The minimum amplitude of weak signal which can be detected is10μV.The application of heterodyne lock-in amplifier in beam position monitoring system is also described in the paper at last.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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