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热电探测器特性基本上取决于前置放大器的设计。本文讨论影响探测器总性能的放大器参数,并论述在不影响噪声系数情况下,改善上升时间的详细设计,介绍用两种类型放大器获得的结果。
The pyroelectric detector characteristics basically depend on the design of the preamplifier. This article discusses the amplifier parameters that affect the overall detector performance and discusses the detailed design to improve the rise time without affecting the noise figure and the results obtained with both types of amplifier.