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本前置放大器采用超高速缓冲放大器LH0 0 33,并将半导体探测器与前置放大器同时屏蔽 ,克服了传统放大器体积大 ,噪声强 ,易受环境因素干扰等缺点。放大器工作可靠 ,灵敏度高 ,适合于各类在电磁环境恶劣下极弱小信号的测量
The preamplifier uses a super high speed buffer amplifier LH033, and shields the semiconductor detector and the preamplifier simultaneously, thus overcoming the defects that the conventional amplifier is bulky, strong in noise and easily disturbed by environmental factors. Amplifier work reliable, high sensitivity, suitable for all kinds of extremely weak electromagnetic environment in the measurement of small signals