Design of a Low-Noise Preamplifier for Hydrophones Based on Domestic JFET
This paper expounds the designe of a preamplifier based on a domestically produced JFET to address the high output impedance and variable impedance characteristics of piezoelectric ceramic hydrophones.Experimental results show that the noise performance of this circuit is superior to that of preamplifiers based on operational amplifiers,meeting the noise requirements for hydrophone preamplifiers in deep-sea exploration.
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维普
